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United States Department of Agriculture Urban Hydrology Soil Conservation Service for Small Watersheds Engineering Division Technical -@Release 55 June 1986 '17 do, Z", SeI A 4@ GB 980 tj V .U73 1986 77, 11 ILL MOD SID: 14437 IL NO@ will ship. .ILL Pending 20000619 Record 2 of 2 :ILL: 288696 :Borrower: AZS :ReqDate: 20000616 :NeedBefore: 20000716 :Status: SHIPPED :RecDate: :RenewalReq: :OCLC: 43019328 :Source: OCLCILL :DueDate: 20000719 :NewDue'Date: :Lender: *NO@,NO@,WRJ,WRJ :CALLNO: it + :TITLE: Urban hydrology for small watersheds. I 0@ -IMPRINT: [Washington, D.C.] : U.S. Dept. of Agriculture, Soil Conservation Service, Engineering Division, [1986]. 1 :SERIES: Technical release (United,States. Soil Conservation Service) ; 55. :VERIFIED: OCLC I :PATRON: grimm, nancy/fa 78055 5 :SHIP TO: Interlibrary Loan/Arizona State University Libraries/PO Box 871006/Tempe AZ 85287-1006 (USA) I :BILL TO: same I :SHIP VIA: Library Rate :MAXCOST: 00.00ifm :COPYRT COMPLIANCE: :FAX: 480-965-9486 1 :E-MAIL: ARIEL IP: 129.219.244.28 1 :BORROWING NOTES: Please lend .... thanks! @AMI I -LENDING CHARGES: 0 :SHIPRED.- _Z0000619- -S-HI-P INS@URANIZE., Preface Technical Release 55 (TR-55) presents simplified procedures to calculate storm runoff volume, peak ,rate of discharge, hydrographs, and storage volumes required for floodwater reservoirs. These procedures are applicable in small watersheds, especially urbanizing watersheds, in the United States. First issued by the Soil Conservation Service (SCS) in January 1975, TR-55 incorporates current SCS procedures. This revision includes results of recent research and other changes based on experience with use of the original edition. The major revisions and additions are- 1. A flow chart for selecting the appropriate - procedure; 2. Three additional rain distributions; 3. Expansion of the chapter on runoff curve numbers; 4. A procedure for calculating travel times of sheet flow; 5. Deletion of a chapter on peak discharges; 6. Modifications to the Graphical Peak Discharge method and Tabular Hydrograph method; 7. A new storage routing procedure; 8. Features of the TR-55 computer program; and 9. Worksheets. This revision was prepared by Roger Cronshey, Hydraulic Engineer, Hydrology Unit, SCS, Washington, DC; Dr. Richard H. McCuen, Professor of Civil Engineering, University of Maryland, College Park, MD; Norman Miller, Head, Hydrology Unit, SCS, Washington, DC; Dr.Walter Rawls, Hydrologist'IAgricultural Research Service, Beltsville, MD; Sam Robbins (deceased), formerly Hydraulic Engineer, SCS, South National Technical Center (NTC), Fort Worth, TX; and Don Woodward, Hydraulic Engineer, SCS, Northeast NTC, Chester, PA. Valuable contributions were made by John Chenoweth, Stan Hamilton, William Merkel, Robert Rallison (ret.), Harvey Richardson, Wendell Styner, other SCS hydraulic engineers, and Teresa Seeman. Revised June 1986 (210-VI-TR-55, Second Ed., June 1986) Contents Page Page Chapter 1: Introduction ...... 1-1 Appendix A: Hydrologic soil groups ........ ... A-1 Effects of urban development ................. 1-1 Disturbed soil profiles ........................ A-1 Rainfall ....................................... 1-1 -.-Drainage and grou D soils ................... A-1 p Runoff ...................................... 1-2 Time parameters ......... 1-2 Appendix B: Synthetic rainfall distributions a* p''h's and rainfall data sources ................. B Peak discharge and hydrogr 1-2 Storage effects .............................. 1-2 Synthetic rainfall distributions ................ B-1 Selecting the appropriate procedures .......... 1-2 Rainfall data sources ......................... B-3 Limitations ....................... ........... 1-4 Appendix C: Computer program ............. C-1 Chapter 2: Estimating runoff ................ 2-1 SCS Runoff Curve Number method ........... 2-1 Appendix D: Worksheets .................... D-1 Factors considered in determining runoff curve numbers ................................. 2-1 Appendix E: References ...................... E-i Runoff ...................................... 2-11 Limitations .................................. 2-11 Appendix F: Equations for figures and Examples ................................... 2-11 exhibits ................................. F-1 Chapter 3: Time of concentration and travel List of figures .................. time .................................... 3-1 List of tables ................................ iii Factors affecting time of concentration and List of exhibits ............................... iii travel time .............................. 3-1 List of worksheets ...... ..................... iv Computation of travel time and time of Metric conversions ........................... iv concentration ............................ 3-1 Definitions of symbols ........................ iv Limitations .................................. 3-4 Example 3-1 ................................. 3-4 Chapter 4: Graphical Peak Discharge method 4-1 Peak discharge computation .................. 4-1 Limitations .................................. 4-2 Example 4-1 ................................. 4-2 Chapter 5: Tabular Hydrograph method ...... 5-1 Tabular Hydrograph method exhibits .......... 5-1 Information required"for Tabular Hydrograph method ......... 11 ........................... 5-1 Development of composite flood hydrograph .... 5-2 Limitations ................................... 5-3 Examples ......... .......................... 5-4 Chapter 6: Storage Volume for detention basins ......... ........................... 6-1 Estimating the effect of storage ............... 6-1 Input requirements and procedures ............ 6-2 Limitations ...................... ... ***'* ... 6-3 Examples ................................... 6-4 US Department of Commeme NOAA Coastal SUrvices Center LjbrgU7 2284 South Robson Avenue Cb8r1O6tOU, SC 2N05-2413 (210-VI-TR-55, Second Ed., June 1986) Figures Page Tables P(( 1-1. Flow chart for selecting. the appropriate 2-1. Runoff depth for selected CN's and rain- procedures in TR-55 ................... 1-3 fall amounts ........................... 2-1. Solution of runoff equation .............. 2-2 2-2a. Runoff curve numbers for urban areas ... 2-' 2-2. Flow chart for selecting the appropriate 2-2b. Runoff curve numbers for cultivated figure or table for determining runoff agricultural lands ...................... 2-C. curve numbers ........................ 2-4 2-2c. Runoff curve numbers for other agricul- 2-3. Composite CN with connected impervious turallands ............................ 2-7 area .................................. 2-10 2-2d. Runoff curve numbers for and and semi- 2-4. Composite CN with unconnected impervi- and rangelands ........................ 2-8 ous areas and total impervious area less 3-1. Roughness coefficients (Manning's n) for than 30% ............................. 2-10 sheet flow ............................. 3-3 2-5. Worksheet 2 for example 2-1 ............ 2-13 4-1. la values foi- runoff curve numbers ...... 4-1 2-6. Worksheet 2 for example 2-2 ............ 2-14 4-2. Adjustment factor (Fp) for pond and 2-7. Worksheet 2 for example 2-3 ............ 2-15 swamp areas that are spread throughout 2-8. Worksheet 2 for example 2-4 ............ 2-16 the watershed ......................... 4-2 3-1. Average velocities for estimating travel 5-1. la values for runoff curve numbers ...... 5-2 time for shallow concentrated flow ...... 3-2 F-1. Coefficients for the equation used to 3-2. Worksheet 3 for example 3-1 ............ 3-5 generate exhibits 4-1 through 4-111 ...... F-2 4-1. Variation Of Ia/P for P and CN .......... 4-1 F-2. Coefficients for the equation used to 4-2. Worksheet 4 for example 4-1 ............ 4-3 generate figure 6-1 ...................... F-2 5-1. Worksheet 5a for example 5-1 ........... 5-5 5-2. Worksheet 5b for example 5-1 .......... 5-6 5-3. Worksheet 5a for example 5-2 ........... 5-7 Exhibits 5-4. Worksheet 5b for example 5-2 .......... 5-8 6-1. Approximate detention basin routihg for rainfall types 1, IA, II, and III .......... 6-2 4-1: Unit peak discharge (q,) for SCS type 1 6-2. Worksheet 6a for example 6-1 ........... 6-5 rainfall distribution .................... 4-4 6,1* Worksheet 6a for example 6-2 ........... 6-7 4-IA: Unit peak discharge (q,) for SCS type IA 6-4. Worksheet 6b for example 6-3 .......... 6-9 rainfall distribution .................... 4-5 6-5. Worksheet 6a for example 6-4 ........... 6-11 4-11: Unit peak discharge (qu) for SCS type II B-1. SCS 24-hour rainfall distributions ....... B-1 rainfall distribution .................... 4-6 B-2. Approximate geographic boundaries for 4-111: Unit peak discharge (qu) for SCS type III SCS rainfall distributions ............... B-2 . rainfall distribution .................... 4-7 B-3. Two-year, 24-hour rainfall .............. B-4 5-1: Tabular hydrograph unit discharges B-4. Five-year, 24-hour rainfall ...... I....... B-5 (csm/in) for type I rainfall distribution ... 5-9 B-5. Ten-year, 24-hour rainfall ............... B-6 5-IA: Tabular hydrograph unit discharges B-6. Twenty-five-year, 24-hour rainfall ........ B-7 (csm/in) for type IA rainfall distribution. . 5-19 B-7. Fifty-year, 24-hour rainfall .............. B-8 5-11: Tabular hydrograph-unit discharges B-8. One-hundred-year, 24-hour rainfall ....... B-9 (esm/in) for type II rainfall distribution .. 5-29 5-111: Tabular hydrograph unit discharges (esm/in) type III rainfall. distribution ..... 5-39 A-1: Hydrologic soil groups for United States soils .................................. A-3 (210NI-TR-55, Second Ed., June 1986) Worksheets, Definitions of symbols Page 2: Runoff curve number and runoff ........ D-2 Symbol Unit Definition 3: Time of concentration (T,) or travel time .,_a. _ft2 -Cross sectional flow area (Tt) ................................... D-3, Am Mi2 Drainage area 4: Graphical Peak Discharge method ....... D-4 CN - Runoff curve number 5a: Basic watershed data ............ -. .-.- . -. . . . D-5 CN, Composite -runoff curve 5b: Tabular hydrograph discharge summary . D-6 number 6a: Detention basin storage, peak outflow CNP Pervious runoff curve number discharge (q,) known ................... D-7 Emax Maximum stage 6b: Detention basin peak outflow, storage Fp Pond and swamp adjustment volume (Vs) known ..................... D-8 factor Hw ft Head over weir crest la in Initial abstraction Metric conversions L ft Flow length Lw ft Weir crest length in Number of flow segments The English system of units is used in this TR. To n Manning's roughness convert to the International System of units (metric), coefficient use the following factors: P in Rainfall Pimp Percent imperviousness .From English unit To metric unit Multiply by P2 in Two-year frequency, 24-hour rainfall Acre Hectare 0.405 pw ft Wetted perimeter Square mile Square kilometer 2.59 q efs Hydrograph coordinate Cubic feet per second Cubic meters per second 0.0283 qi efs Peak inflow discharge Inch Millimeter 25.4 qO efs Peak outflow discharge Feet per second Meters per second 0.3048 Acre-foot Cubic meter 1233.489 qp cfs Peak discharge Cubic foot Cubic meter 0.0283 qt esm./in Tabular hydrograph unit discharge qu esni/in Unit peak discharge Perform rounding operations as appropriate to Q in Runoff indicate the same level of precision as that of the r ft Hydraulic radius original measurement. For example: R Ratio of unconnected 1. A stream discharge is recorded in cubic feet per impervious area to total second with three significant digits. impervious area 2. Convert stream discharge to cubic meters per s ft/ft Slope of hydraulic grade line second by multiplying by 0.0283. S in Potential maximum retention 3. Round to enough significant digits so that, when after runoff begins converting back to cubic feet per second, you t hr Hydrograph time obtain the original value (step 1) with three T, hr Time of concentration significant digits. Tp hr Time to peak Tt hr Travel time V ft/s Average velocity Vr acre-ft, ft3, Runoff volume or water- shed-inch V, acre-ft, ft3, Storage volume or water- shed-inch iv (210-VI-TR-55, Second Ed., June 1986) Chapter 1: Introduction The conversion of rural land to urban land usually Urbanization changes a watershed's response to increases erosion and the discharge and volume of precipitation. The most common effects are reduced storm runoff in a watershed. It also causes other infiltration and decreased travel time, which problems that affect soil and water. As part of . significantly increase peak discharges and runoff. programs established to alleviate these problems, Runoff is determined primarily by the amount of engineers increasingly must assess the probable precipitation -and by_ infiltr@fion' characte ristics effects of urban development, as well as design 'and related to soil type, soil moisture, antiec-edent rainfall, implement measures that will minimize its adverse cover type, impervious surfaces, and surface ' effects. retention. Travel time is determined. primarily by slope, length of flow.path, depth of flow, and Technical Release 55 (TR-55) presents simplified roughness of flow surfaces. Peak discharges are procedures for estimating runoff and peak discharges based on the relationship of these parameters and on in small watersheds. In selecting the appropriate the total drainage area of the watershed, the location procedure, consider the scope and complexity of the of the development,, the effect of any flood control problem, the available data, and the acceptable level works or other natural or manniade storage, and the of error. While this TR gives special emphasis to time distribution of rainfall during a given storm urban and urbanizing watersheds, the procedures event. apply to any small watershed in which certain limitations are met. The model described in TR-55 begins with a rainfall amount uniformly imposed on the watershed over a specified time distribution. Mass rainfall is converted Effects of urban development to mass runoff by using a runoff curve number (CN). CN is based on soils, plant cover, amount of impervious areas, interception, and surface storage. An urban or urbanizing watershed is one in which Runoff is then transformed into a hydrograph by impervious surfaces cover or will soon cover a using unit hydrograph theory and routing procedures considerable area. Impervious surfaces include roads, that depend on runoff travel time through segments sidewalks, parking lots, and buildings. Natural flow of the watershed. paths in the watershed may be replaced or supplemented by paved gutters, storm sewers, or For a description of the hydrograph development otherelements of artificial drainage. method used by SCS, see chapter 16 of the SCS National Engineering Handbook, Section Hydrologic studies to determine runoff and peak 4-Hydrology (NEH-4) (SCS 1985). The routing discharge should ideally be based on long-term method (Modified Att-Kin) is explained in appendixes stationary streamflow records for the area. Such G and H of draft Technical Release 20 (TR-20) (SCS records are seldom available for small drainage 1983). areas. Even where they are available, accurate statistical analysis of them is usually impossible because of the conversion of land to urban uses Rainfall during the period of record. It therefore is necessary to estimate peak discharges with hydrologic models based on measurable watershed characteristics. Only TR-55 includes four regional rainfall time through an understanding of these characteristics distributions. See appendix B for a discussion of how and experience in using these models can we make these distributions were developed. sound judgments on how to alter model parameters to reflect changing watershed conditions. All four distributions are for a 24-hour period. This period was chosen because of the general availability of daily rainfall data that were used to estimate 2.4-hour rainfall amounts. The 24-hour duration spans most of the applications of TR-55. (210-VI-TR-55, Second Ed., June 1986) 1-1 One critical parameter in the model is time of methods were derived from hydrographs prepared I concentration (Te), which is the time it takes for procedures outlined in chapter 16 of NEH-4 (SCS runoff to travel to a point of interest from the 1985). The computations were in 'ade with a hydraulically most distant point. Normally a rainfall computerized SCS hydrologic model, TR-20 (SCS duration equal to or greater than T, is.used. 1983). Therefore, the rainfall distributions were designed to contain the intensity of any duration of rainfall for The methods in chapters 4 and 5 should be used in the frequency of the event chosen. That is, if the accordance with specific guidelines. If basic data arE 10-year frequency, 24-hour rainfall is used, the most improperly prepared or adjustments not properly intense hour will approximate the 10-year, 1-hour used, errors will result. rainfall volume. Storage effects Runoff Chapter 6 outlines procedures to account for the To estimate runoff from storm rainfall, SCS uses the effect of detention-type storage. It provides a Runoff Curve Number (CN) method (see chapters 4 shortcut method to estimate temporary flood storagi through 10 of NEH-4, SCS 1985). Determination of based on hydrologic data developed from the CN depends on the watershed's soil and cover Graphical Peak Discharge or Tabular Hydrograph conditions, which the model represents as hydrologic methods. soil group, cover type, treatment, and hydrologic condition. Chapter 2 of this TR discusses the effect By increasing runoff and decreasing travel times, of urban development on CN and explains how to urbanization can be expected to increase downstrea use CN to estimate runoff. peak discharges. Chapter 6 discusses how flood detention can.modify the hydrograph so that, ideally, downstream peak discharge is reduced approximate Time parameters to the predevelopment condition. The shortcuts in chapter 6 are useful in sizing a basin even though the final design may require a more detailed analysi Chapter 3 describes a method for estimating the parameters used to distribute the runoff into a hydrograph. The method is based on velocities of Selecting the appropriate procedures flow through segments of the watershed.Two major parameters are time of concentration (T,) and travel I time of flow through the segments (Tt). These and Figure 1-1 is a flow chart that shows how to select the other parameters used are the same as those the appropriate procedures to use in TR-55. In the used in accepted hydraulic analyses of open channels. figure, the diamond-shaped box labeled "Subareas required?" directs the user to the appropriate Manv methods are empirically derived from actual method based on whether the watershed needs to b runoff hydrographs and watershed characteristics. divided into subareas. Watershed subdivision is The method in chapter 3 was chosen because it is required when significantly different conditions basic; however, other methods may be used. affecting runoff or timing are present in the watershed-for example, if the watershed has widel differing curve numbers or nonhomogeneous slope Peak discharge and hydrographs patterns. Chapter 4 describes a method.for approximating peak rates of discharge, and chapter 5 describes a method for obtaining or routing hydrographs. Both 1-2 (210-VI-TR-55, Second Ed., June 1986) START TR-S5 Data No not to applicable estimate TC? Yes Hydrograph Yes required? No Graphical Tabular Peak No Subareas Yes Hydrograph Discharge required? method method Compute Compute watershed subareas', runoff runoff (chapter 2) (chapter 2) Compute Compute watershed subareas' Tc Tc and Tt (chapter 3) (chapter 3) Compute Compute peak tabular discharge hydrograph (chapter 4) (chapter S) Compute Storag Yes storage effect effect required? (chapter 6) No END Yes kN. Figure 1-1-Flow chart for selecting the appropriate procedures in TR-55. (210-VI-TR-55, Second Ed., June 1986) 1-3 Limitations To save time, the procedures in TR-55 are simplified by assumptions about some parameters. These simplifications, however, limit the use of the procedures and can provide results that are less accurate than more detailed methods. The user should examine the sensitivity of the analysis being conducted to a variation of the peak discharge or hydrograph. To ensure that the degree of error is tolerable, specific limitations are given in chapters 2 through 6. Additional general constraints to the use of TR-55 are as follows: �The methods in this TR are based on open and unconfined flow over land or in channels. For large events during which flow is divided between sewer and overland flow, more information about hydraulics than is presented here is needed to determine T, After flow enters a closed system, the discharge can be assumed constant until another flow is encountered at a junction or another inlet. �Both the Graphical Peak Discharge and Tabular Hydrograph methods are derived from TR-20 (SCS 1983) output. Their accuracy is comparable; they differ only in their products. The use of T, permits them to be used for any size watershed within the scope of the curves or tables. The Graphical method (chapter 4) is used only for hydrologically homogeneous watersheds because the -procedure is limited to a single watershed subarea. The Tabular method (chapter 5) can be used for a heterogeneous watershed that is divided into a number of homogeneous subwatersheds. Hydrographs for the subwatersheds can be routed and added. �The approximate storage-routing curves (chapter 6) should not be used if the adjustment for ponding (chapter 4) is used. These storage-routing curves, like the peak discharge and hydrograph procedures, are generalizations derived from TR-20 routings. 1-4 (210-VI-TR-55, Second Ed., June 1986), Chapter,2: Estimating runoff SCS Runoff Curve Number method Factors con'sider,ed in determining runoff curve numbers The SCS Runoff Curve Number (CN) method is described in detail in NEH-4 (SCS 1985). The SCS The major factors that determine CN are the runoff equation is hydrologic soil group (HSG), cover type, treatment, hydrologic condition, and antecedent runoff conditic (P I,)?- (ARC). Another factor considered is whether Q = [Eq. 2-11 impervious areas outlet directly to the drainage (P - 10 + S system (connected) or whether the flow spreads ov( pervious areas before entering the drainage system where (unconnected). Figure 2-2 is provided to aid in selecting the appropriate figure or table for Q =runoff (in), determining curve numbers. P = rainfall (in), CN's in table 2-2 (a to 0 represent average S = potential maximum retention after runoff begins (in), and antecedent runoff condition for urban, cultivated la = initial abstraction (in). agricultural, other agricultural, and and and semiari. rangeland uses. Table 2-2 assumes impervious areas Initial abstraction (Ia) is all losses before runoff are directly connected. The following sections explah begins. It includes water retained in surface how to determine CN's and how to modify them for depressions, water intercepted by vegetation, urban conditions. evaporation, and infiltration. I, is highly variable but generally is correlated with soil and.cover parameters. Through studies of many small Hydrologic soil groups agricultural watersheds, la was found to be approximated by the following empirical equation: Infiltration rates of soils vary widely and are affectec by subsurface permeability as well as surface intake Ia = 0.2S. (Eq. 2-21 rates. Soils are classified into four HSG's (A, B, C, and D) according to their minimum infiltration rate, By removing 1. as an independent parameter, this which is obtained for bare soil after prolonged approximation allows use of a combination of S and P wetting. Appendix A defines the four groups and to produce a unique runoff amount. Substituting provides a list of most of the sQ.ils in the United equation 2-2 into equation 2-1 gives States and their group classification. The soils in the area of interest may be identified from a soil survey Q = (P - 0.2S)2 [Eq. 2-31 report, which can be obtained from local SCS offices (P + 0.8S) or soil and water conservation district offices. S is related to the soil and cover con ditions of the Most urban areas are only partially covered by watershed through Ithe GN., CN has a range of 0 to impervious surfaces: the soil remains an important 100, and S is related to CN by factor in runoff estimates. Urbanization has a greater effect on runoff in watersheds with soils having high 1000 infiltration rates (sands and gravels) than in S = -16. [Eq. 2-4] watersheds predominantly of silts and clays, which CN generally have low infiltration rates. Figure 2-1 and table 2-1 solve equations 2-3 and 2-4 for a range of CN's and rainfall. Any disturbance of a soil profile can significantly change its infiltration characteristics. With urbanization, native soil profiles may be mixed or removed or fill material from other,areas may be introduced. Therefore, a method based on soil (210-VI-TR-55, Second Ed., June 1986) 2-1 8 .00, LO', I V OF 'C'urve3 on this sheet are for- L/z I OF the case I a 0-2S, so that '100 1 ,0, F 10 F A 1 1,00 Z. Oe, (P-0-2S .00, Jo,Z e- I -Q P+O @S 1,100, 44A . Z Oe Z A 7 101 ,00, OF Id .00 Ao Ln -100' 00' aj .4 .I-- . Aor "0, .100,1 1 U 00" 0- 0- J J OKI FA4 @O -4 ---TFZ17 .00 L.000 10 Cr Ix V, 00- 000" L AOe PrAMPF OF Oppr- . @d Jo '000 4- 4 ow 00@ Or 4- Amp ANOWN PFAMMPFAM Epr, 0 F I 01 S- -A ..00 -0 I @ 000 1.00 .00 0@ u 3 PFA FEW .0 FAMMEWAN NEVA lrdd W Empp; '000, -000' 01 -000' FL mmm pgpp, ---Prds N&P, C-4 z CO I I I- IIFT I J 0 f 0 1 2 3 4 5 6 7 8 9 10 11 12 Rainfall (P), inches Figure 2-I.-Solution of runoff equation. *40 P Ii texture is given in appendix A for determining the Hydrologic condition HSG classification for disturbed soils. Hydrologic condition indicates the effects of cover typo and treatment on infiltration and runoff and is Cover type generally estimated.from density of plant and residue cover on sample areas. Good hydrologic condition Table 2-2 addresses most cover types, such as indicates that the soil usually has a low runoff vegetation, bare soil, and impervious surfaces. There potential for that specific hydrologic soil group, cover are a number of methods for determining cover type. type, and treatment. Some factors to consider in The most common are field reconnaissance, aerial estimating the effect of cover on infiltration and photographs', and land use maps. runoff are (a) canopy or density of lawns, crops, or other vegetative areas; (b) amount of year-round cover; (c) amount of grass or close-seeded legumes in Treatment rotations; (d) percent of residue cover; and (e) degree of surface roughness. Treatment is a cover type modifier (used only in table 2-2b) to describe the management of cultivated agricultural lands. It includes mechanical practices, such as contouring and terracing, and management practices, such as crop rotations and reduced or no tillage. Table 2-I.-Runoff depth for selected CN's and rainfall amounts' Runoff depth for curve number of- Rainfall 40 45 50 55 60 65 70 75 80 85 90 95 98 ----------------------------------------------------- inches ----------------------------------------------------- 1.0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.03 0.08 0.17 0.32 0.56 0.79 1.2 .00 .00 .00 .00 .00 .00 .03 .07 .15 .27 .46 .74 .99 1.4 .00 .00 .00 .00 .00 .02 .06 .13 .24 .39 .61 .92 1.18 1.6 .00 .00 .00 .00 .01 .05 .11 .20 .34 .52 .76 1.11 1.38 1.8 .00 .00 .00 .00 .03 .09 .17 .29 .44 .65 .93 1.29 1.58 2.0 .00 .00 .00 .02 .06 .14 .24 .38 .56 .80 1.09 1.48 1.77 2.5 .00 .00 .02 .08 .17 .30 .46 .65 .89 1.18 1.53 1.96 2.27 3.0 .00 .02 .09 .19 .33 .51 .71 .96 1.25 1.59 1.98 2.45 2.77 3.5 .02 .08 .20 .35 .53 .75 1.01 1.30 1.64 2.02 2.45 2.94 3.27 4.0 .06 .18 .33 .53 .76 1.03 1.33 1.67 2.04 2.46 2.92 3.43 3.77 4.5 .14 .30 .50 .74 1.02 1.33 1.67 2.05 2.46 2.91 3.40 3.92 4.26 5.0 .24 .44 .69 .98 1.30 1.65 2.04 2.45 2.89 3.37 3.88 4.42 4.76 6.0 .50 .80 1.14 1.52 1.92 2.35 2.81 3.28 3.78 4.30 4.85 5.41 5.76 7.0 .84 1.24 1.68 2.12 2.60 3.10 3.62 4.15 4.69 5.25 5.82 6.41 6.76 8.0 1.25 1.74 2.25 2.78 3.33 3.89 4.46 5.04 5.63 6.21 6.81 7.40 7.76 9.0 1.71 2.29 2.88 3.49 4.10 4.72 5.33 5.95 6.57 7.18 7.79 8.40 8.76 10.0 2.23 2.89 3.56 4.23 4.90 5.56 6.22 6.88 7.52 8.16 8.78 9.40 9.76 11.0 2.78 3.52 4.26 5.00 5.72 6.43 7.13 7.81 8.48 9.13 9.77 10.39 10.76 12.0 3.38 4.19 5.00 5.79 6.56 7.32 8.05 8.76 9.45 10.11 10.76 11.39 11.76 13.0 4.00 4.89 5.76 6.61 7.42 8.21 8.98 9.71 10.42 11.10 11.76 12.39 12.76 14.0 4.65 5.62 6.55 7.44 8.30 9.12 9.91 10.67 11.39 12.08 12.75 13.39 13.76 15.0 5.33 6.36 7.35 8.29 9.19 10.04 10.85 11.63 12.37 13.67 13.74 14.39 14.76 'Interpolate the values shown to obtain runoff depths for CN's oi- rainfall amounts not shown. (210-VI-TR-55, Second Ed., June 1986) 2-3 START No U nconne.cte impervious area? Yes No Impervious Yes area < 30%? Determine Determine Table 2-2 No pervious pervious assumptions CN CN apply? (table 2-2) (table 2-2) Yes Determine Determine Determine composite composite composite CN CN CN (table 2-2) (figure 2-3) (figure 2-4) ..08 END Figure 2-2.-Flow chart for selecting the appropriate figure or table for determining runoff curve numbers. 2-4 (210-VI-TR-55, Second Ed., June 1986) Table 2-2a.-Runoff curve numbers for urban areasl Curve numbers for Cover description hydrologic soil gr*Oup- Average percent Cover type and hydrologic condition impervious area2 A B C D Fally developed urban areas (vegetation established) Open space (lawns, parks, golf courses, cemeteries, etC.)3: Poor condition (grass cover < 50%) .............. 68 79 86 89 Fair condition (grass cover 50% to 75%) ........... 40 69 79 84 Good condition (grass cover > 75%) .............. 39 61 74 80 Impervious areas: Paved parking lots, roofs, driveways, etc. (excluding right-of-way) .......................... 08 98 98 98 Streets and roads: Paved; curbs and storm sewers (excluding right-of-way) .................................. 98 98 98 98 Paved; open ditches (including right-of-way) ....... 83 89 92 93 Gravel (including right-of-way) ................... 76 85 89 91 Dirt (including right-of-way) ..................... 72 82 87 89 Western desert urban areas: Natural desert landscaping (pervious areas only)4 ... 63 77 85 88 Artificial desert landscaping (impervious weed barrier, desert shrub with I- to 2-inch sand or gravel mulch and basin borders.) . ............... 96 96 96 96 Urban districts: Commercial and business .......................... 85 89 92 94 95 Industrial ........................................ 72 81 88 91 93 Residential districts by average lot size: 1/8 acre or less (town houses) ...................... 65 77 85 90 92 1/4 acre .................................... .... 38 61 75 83 87 111 acre ... ... 30 57 72 81 16 1/2 acre ......................................... 25 54 70 80 85 1 acre ........................................... 20 51 68 79 84 2 acres .......................................... 12 46 65 77 82 Developing urban areas Newly graded areas (pervious areas only, no vegetation)5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 86 91 94 idle lands (CN's are determined using cover types similar to those in table 2-2c). lAverage runoff condition, and 1@, = 0.2S. 21'he average percent inipervious area sho,@vn @Nras used to develol) the composite CN's. Other assumptions are as follom,s: imperviou., area@z are (firectl,%, connected to the drainage system, irnpervious, ar(,as have a CN of'98, and pervious areas are considered equivalent to 01)en sj)acejn good hYdrologic condition. CN`,, for other combinations of Conditions may be computed using figure 2-3 or 2-4. GN's shown are e(ILtivalent to those ofpasture. Composite CN's MaY be compiaed for other combinations of open space cover t.%Te. 4CO111po, ,;jte CN's for natUl-al desert landscaping should be computed using figures 2-3 or 2-4 based on the impervious area I)ercentage(CN 98) and the pervions area CN. The perviotis area CN's are assurned equivalent to desert shrub in poor hydrologic condition. 5Cornposite CN',@ to Lise for the design of temporary measures during grading and construetion should be COMIAlted using figure 2-3 oi, 2-4, based on the degree of developnient (iinl)ervious area percentage) and the CN'@, for the nc\vly graded pervious areas. (210-VI-TR-55, Second Ed., June 1986) 2-5 Table 2-2b.-Runoff curve numbers for cultivated agricultural lands' Curve numbers for Cover description Hydrologic hydrologic soil group- Cover type Treatment2 condition" A B C D Fallow Bare soil 77 86 91 94 Crop residue cover (CR) Poor 76 85 90 93 Good 74 83 88 90 Row crops Straight row (SR) Poor 72 81 88 91 Good 67 78 85 89 SR + CR Pool, 71 80 37 90 Good 64 75 82 85 Contoured (C) Poor 70 79 84 88 Good 65 75 82 86 C + CR Pool, 69 78 83 87 Good 64 74 81 85 Contoured & terraced (C&T) Pool, 66 74 80 82 Good 62 71 78 81 C&T + CR Pool, 65 73 79 81 Good 61 70 77 80 Small grain SR Poor 65 76 84 88 Good 63 75 83 87 SR + CR Pool, 64 75 83 86 Good 60 72 80 84 C Poor 63 74 82 85 Good 61 73 81 84 C + CR Poor 62 73 81 84 Good 60 72 80 83 C&T Poor 61 72 79 82 Good 59 70 78 81 C&T + CR Poor 60 71 78 81 Good 69 77 80 Close-seeded SR Poor 66 77 85 89 or broadcast Good 58 72 81 85 legumes Or C Poor 64 75 83 85 rotation 'Good 55 69 78 83 meadow C&T Poor 63 73 80 83 Good 51 67 76 80 'Avenige ruiioff conditioii, aml 1@, 0.21S. 2(')-(,/) oii1Y ffresidile is oil at least 51/e, ofthe -SUIT"We thl-OUghOtit the year. :,F)Ydrologic conditioti is based oil collibillatioll of' factors that affect infiltration and rul)Off, hICILIdilIg (,I) dellsity 211d C-M101)y (,)I' Ve9(AAjVe ill,eZIS, (1)),MIOUIA Of'Veill'-1-01-01d COV01', (C) @111101.11)t Of gl-@L;S or elose-,seeded legunles ill' rotations, (d) I)el-Cellt Of' I-eSidUe COVel' Oil the )WA S1,111- f,ace (good -> 2011,), illd (e) (IC9k-ee OI'SLII-filef- I-Oligll[ICSS. Poor Factors jillpail. illfiltratioil alid tell(] to increase runoff. (;OWI: hlCtol-S U111201,11-11g-C iverage and better than average ilffliti-aLioll alld tetid to c1cerease runoff. 2-6 (210-VI-TR-55, Second Ed., June 1986) Table 2-2c.-Runoff curve numbers for other agricultural lands' Curve numbers for Cover description hydrologic soil group- Hydrologic Cover tYpe condition A B C D Pasture, grassland, or range-continuous Poor 68 79 86 89 forage foi, grazing.2 Fair 49 69 79 84 Good 39 61 74 80 Meadow-continuous grass, protected from 30 58 71 78 grazing and generally mowed for hay. Brush-brush-weed-grass mixture with brush Poor 48 67 77 83 the major element.3 Fair 35 56 70 77 Good 430 48 65 73 Woods-grass combination (orchard Poor 57 73 82 86 or tree farin).5 Fair 43 65 76 82 Good 32 58 72 79 Woods.6 Poor 45 66 77 83 Fair 36 60 73 79 Good 430 55 70 77 Farmsteads-buildings, lanes, driveways, 59 74 82 86 and surrounding lots. 'Average ruiioff couditioii, aud 1,, = 0.2S. 2 Poo)-: <50'7cgi-oiiii(lcoN-ei-oi-lie@tvilygi,aze(INN,itliiiolliulch. Fair: 50 to 75% groutid cover aud not heavily grazed. Good: >75,-/( growid cover aii(I lightly or only occasioilallY grazed. :"`)o, g"Ou", (@Uver* Fair 50 to 75% ground cover. Good: >751/( groull(I Cover. 4Actual curve nuniber is less than 30; use CN = 30 for runoff computations. TN's sho%% ii @vere coii)puted roi- areas Mth 501/c \voods and 501/c grass (pasture) cover. Other combinatioiis of cotiditions may be 'computed from the CIN's foi- wowls awl pa-,;tut-e. (51 : Fo,,esl filtr, ,,e,,,, and bivh ar, destroyed by heavy grazing or regular buniing. Fair: Woods are gnized but noL burned, aii(I some foresL litter cover,_ the soil. Good: Woods are pi,otected froiii gi-azing, aii(I litter and bi-ush adequately covei- the soil. (210-VI-TR-55, Second Ed., June 1986) 2-7 Table 2-2d.-Runoff curve numbers for arid and semiarid rangelands, Curve numbers foi- Cover description hydrologic soil gro up- Hydrologic Cover type condition2 A3 B C D Herbaceous-mixture of grass, weeds,and Poor 80 87 93 low-growing brush, with brush the Fair 71 81 89 minor element. Good 62 74 85 Oak-aspen-mountain brush mixture of oak brush, Poor 66 74 79 aspen, mountain mahogany, bitter brush, maple, Fair 48 01 63 and other brush. Good 30 41 48 Pinyon-juniper-pinyon, juniper, or both; Poor 75 85 89 grass understory. Fair 58 73 80 Good 41 61 71 Sagebrush with grass understory. Poor 67 so 85 Fair 51 63 70 Good 35 47 55 Desert shrub-major plants include saltbush, Poor 63 77 85 88 greasewood, creosotebush, blackbrush, bursage, Fair 55 72 81 86 palo verde, mesquite, and cactus. Good 49 68 79 84 lAverage runoff condition, and 1,, = 0.2S. For,range in humid regions, LISe table 2-2c. 211()(p... <30% gl'OUnd cover (litter, grass, and brtish overstory). Foir: 30 t. 70rle ground cover. Uood: >701/( ground cover. :'CtIrN'e IlUmbers for group A have been developed only for desert shrub. 2-8 (210-VI-TR-55, Second Ed., June 1986) Antecedent runoff condition assumed impervious area of 25 percent. However, if the lot has 20 percent impervious area and a The index of runoff potential before a storm event is perviou -s area,CN of 61, the composite CN obtained the antecedent runoff condition (ARC). ARC is an from figure 2-3 is 68. The CN difference between 70 attempt to account for the variation in CN at a site and 68 reflects the difference iin' percent impervious from storm to storm. CN for the average ARC at a area. - site is the median value as taken from sample rainfall and runoff data. The CN's in table 2-2 are for the average ARC, which is used primarily for design Unconnected impervious areas applications. See NEH-4 (SCS 1985) and Rallison and Miller (1981) for more detailed discussion of storm-to- Runoff from these areas is spread over a pervious storm variation and a demonstration of upper and area as sheet flow. To determine CN when all or lower enveloping curves. part of the impervious area is not directly connected to the drainage system, (1) use figure 2-4 if total impervious area is less than 30 percent or (2) use Urban impervious area modifications figure 2-3 if the total impervious area is equal to or greater than 30 percent@ because the absorptive Several factors, such as the percentage of impervious capacity of the remaining pervious areas will not areaand the means of conveying runoff from significantly affect runoff. impervious areas to the drainage system, should be considered in computing CN for urban areas (Rawls When impervious area is less than 30 percent, obtain et al., 1981). For example, do the impervious areas the composite CN by entering the right half of figure connect directly to the drainage system, or do they 2-4 with the percentage of total impervious area and outlet onto lawns or other pervious areas where the ratio of total unconnected impervious area to infiltration can occur? total impervious area. Then move left to the appropriate pervious CN and read down to find the composite CN. For example, for a 1/2-acre lot with 20 Connected impervious areas percent total impervious area (75 percent of which i@ unconnected) and pervious CN of 61, the composite An impervious area is considered connected if runoff CN from figure 2-4 is 66. If all of the impervious from it flows directly into the drainage system. It is area is connected, the resulting CN (from figure 2-3) also considered connected if runoff from it occurs as would be 68. concentrated shallow flow that runs over a pervious area and then into a drainage system. Urban CN's (table 2-2a) were developed for typical land use relationships based on specific assumed percentages of impervious area. These CN values were developed on the assumptions that (a) pervious urban areas are equivalent to pasture in good hydrologic condition and (b) impervious areas have a CN of 98 and are directly connected to the drainage system. Some assumed percentages of impervious .area are shown in table 2-2a. If all of the impervious area is directly connected to the drainage system, but the impervious area percentages or the pervious land use assumptions in table 2-2a are not applicable, use figure 2-3 to compute a composite CN. For example, table 2-2a gives a CN of 70 for a 1/2-acre lot in HSG B, with an (210-VI-TR-55, Second Ed., June 1986) 2-9 100 __t@per@i @us 90 11111 .2 !7 Lt 80 P1 M son P-411111MOOMPI-dMIMP, 4-3 dim Ff4+ - I I I I P, 70 . I IN 1 1111 1 1 1 11 adionomosp@Pldgd OF, Prl_ III III E 'N 0 60 50 -T-L.I. IL L+i H H W- 0 10 20 30 40 50 60 70 80 90 100 Connected impervious area, % Figure 2-3.-Composite CN with connected impervious area. 0.0 I I I lilt RINNIM110-- 0.5 Ln S_ 0 oo ci - S_ Ili 11 OKI Kill 1111111 CL k 1.0 -0 E MAIIIN111411MM", Qj Urrm _P U 1111111110111 0111,11,1K Kill C: 0 0 U 11 .R 111111111.11111k, .11-11V. 11111le- 90 80 70 60 50 40 0 10 20 30 Composite CN Total impervious ,area, % Figure 2-4-Composite CN with unconnected impervious areas and total impervious area less than 30%. d M I I LLL. IL ILI 2-10 (210-VI-TR-55, Second Ed., June 1986) Runoff The CN procedure is less accurate when runoff is less than 0.5 inch. As a check, use another procedure to determine runoff. When CN and the amount of rainfall have been determined for the watershed, determine runoff by The SCS runoff procedures apply only to direct using figure 2-1, table 2-1, or equations 2-3 and 2-4. surface runoff. do not overlook large sources of The runoff is usually rounded lo he nearest subsurface flow or high ground water levels that hundredth of an inch. contribute to runoff. These conditions are often related to HSG A soils and forest areas that have been assigned relatively low CN's in table 2-2. Limitations Good judgment and experience based on stream gage records are needed to adjust CN's as conditions warrant. Curve numbers describe average conditions that are useful for design purposes. If the rainfall When the weighted CN is less than 40, use event used is a historical storm, the modeling another procedure to determine runoff. accuracy decreases. Use the runoff curve number equation with Examples caution when recreating specific features of an actual storm. The equation does not contain an expression fortime and, therefore, does not Four examples illustrate the procedure for computing account for rainfall duration or intensity. runoff curve number (CN) and runoff (Q) in inches. Worksheet 2 in appendix D is provided to assist The user should understand the assumption TR-55 users. Figures 2-5 to 2-8 represent the use of reflected in the initial abstraction term (IJ and worksheet 2 for each example, All four examples are should ascertain that the assumption applies to the based on the same watershed and the same storm situation. 1,, which consists of interception, initial event. infiltration, surface depression storage, evapotranspiration, and other factors, was The watershed covers 250 acres in Dyer County, generalized as 0.2S based on data from northwestern Tennessee. Seventy percent (175 acres) agricultural watersheds (S is the potential is a Loring soil, which is in hydrologic soil group C. maximum retention after runoff begins). This Thirty percent (75 acres) is a Memphis soil, which is approximation can be especially important in an in group B. The event is a 25-year frequency, 24-hour urban application because the combinatioh of storm with total rainfall of 6 inches. impervious areas with pervious areas can imply a significant initial loss that may not take place. The Cover type and conditions in the watershed are opposite effect, a greater initial loss, can occur if different for each example. The examples, therefore, the impervious areas have surface depressions that illustrate how to compute CN and Q for various store some runoff. To use a relationship other than situations of proposed, planned, or present Ia = 0.2S, one must redevelop equation 2-3, figure development. 2-1, table 2-1, and table 2-2 by using the original rainfall-runoff data to establish new S or CN relationships for each cover and hydrologic soil Example 2-1 group. The present cover type is pasture in good hydrologic Runoff from sno-winelt or rain. on frozen ground condition. (See figure 2-5 for worksheet 2 cannot be estimated using these procedures. information.) (210-VI-TR-55, Second Ed., June 1986) 2-11 Example 2-2 Seventy percent (175 acres) of the watershed, consisting of all the Memphis soil and 100 acres of the Loring soil, is 1/2-acre residential lots with lawns in good hydrologic condition. The rest of the watershed is scattered open space in good hydrologic condition. (See figure 2-6.) Example 2-3 This example is the same as example 2-2, except that the 1/2-acre lots have a total impervious area of 35 percent. For these lots, the pervious area is lawns in good hydrologic condition. Since the impervious area percentage differs from the percentage assumed in table 2-2, use figure 2-3 to compute CN. (See figure 2-7.) Example 2-4 This example is also based on example 2-2, except that 50 percent of the impervious area associated with the 1/2-acre lots on the Loring soil is "unconnected,". that is, it is not directly connected to the drainage system.. For these lots, the pervious area CN (lawn, good condition) is 74 and the impervious area is 25 percent. Use figure 2-4 to compute the CN for these lots. CN's for the 1/2-acre lots on Memphis soil and the open space on Loring soil are thesame as those in example 2-2. (See figure 2-12 (210-VI-TR-55, Second Ed., June 1986) Worksheet 2: Runoff curve number and runoff Project @i--Cvev% AcrIL's By WZ Q Date 1011 113,- Location Dq e c- C.@' + 'I) T@any%eGlgee- CheckedY@q Date (01318-T Circle one: OEE@ Developed 1. Runoff curve number (CN) Soil name Cover description Area Product and CN - of hydrologic (cover type, treatment, and N CN x area group hydrologic condition; 'I' '1 0 acres percent impervious; C14 C' Omi2 unconnected/connected impervious (appendix A) area ratio) Mewf@ks)?') 30 C -14 Use only one CN source per line. Totals = CN (weighted) = total product _-]Ol Use CN = total area I cc 2. Runoff Storm #1 Storm #2 Storm #3 Frequency .............................. yr -Z s- Rainfall, P (24-hour) .................. in 66 . C) .Runoff, Q .............................. in (Use P and CN with table 2-1, fig. 2-1, or eqs. 2-3 and 2-4.) Figure 2-5.-Worksheet 2 for example 2-1. (210-VI-TR-55, Second Ed., June 1986) 2-13 Worksheet 2: Runoff curve number and runoff Project I@eaye&^I@j Acr-cs BY Wa k Date I 8's- Location 'b@er- COU-*'Y) Tev'V@rssep- Checked 3?@ Date JA-I -11IRS- Circle one: Present Q(reS re%'k8e-4L'OI 1. Runoff curve number (CN) Soil name Cover description Area Product and CN-11 of hydrologic (cover type, treatment, and CN x area group hydrologic condition; I 'I 6pacres percent impervious; Q [Imi 2 unconnected/connected impervious q I @O 0 (appendix A) area ratio) Z 504, ipspervibW5 .4:5 100 8CCO Lor',-.-q, C Ope'A sq--%cp-@ JOOCL 6C)KJ;+LC>-" -1 q 0 Use only one CN source per line. Totals = CN (weighted) = total product =@BAC6 7S@ 2 Use CN = total area 2. Runoff Storm #1 Storm #2 Storm #3 Frequency .............................. yr z s- I Rainfall, P (24-hour) .................. in 0 Runoff, Q .............................. in (Use P and CN with table 2-1, fig. 2-1, or eqs. 2-3 and 2-4.) Figure 2-6.-Worksheet 2 for example 2-2. 2-14 (210-VI-TR-55, Second Ed., June 1986) Worksheet 2: Runoff curve number and runoff Project e- . Y': C rcs By. �@T R Date 1 Location 'DIJ-'T - -Y I 7-ey, vi ess P- e- Checked -XRI@ Date 101-3)BS- Circle one: Present 1. Runoff curve number (CN) Soil name Cover description I/ Area Product and CN - of hydrologic (cover type, treatment, and CIq CN x area 1 17 group hydrologic condition; C'@ I I alacres percent impervious; W " " Omi2 1-4 unconnected/connected impervious 0 (appendix A) area ratio) -vp-rv;atS' 1 -7 -- A-.) 2z COO zoo L or-i ,5, P. Use only one CN source per line. Totals = 91 -30 0 tal product cl 4 "7 CN (weighted) = to -L ""' - 2 Use CN = total area 2. Runoff Storm #1 Storm #2 Storm #3 Frequency .............................. yr z Rainfall, P (24-hour) .................. in (DIC-) Runoff, Q .............................. in F (Use P and CN with table 2-1, fig. 2-1, or eqs. 2-3 and 2-4.) Figure 2-7.-Worksheet 2 for example 2-3. (210-VI-TR-55, Second Ed., June 1986) 2-15 Worksheet 2: Runoff curve number and runoff Project A cr --- By Date io Location 1),qef- Checked Date Circle one: Present 1. Runoff curve number (CN) Soil name Cover description Area Product and CN of hydrologic (cover type, treatment, and CN x area M group hydrologic condition; I I 60acres percent impervious; (V Omi2 unconnected/connected impervious 0 7 (appendix A) area ratio) M -70 7 Z-57,90 ;V'V-rV"CY".5 -->d-@ So7 I C @1-2- t re 1 1-78 Lo'; r C 0 'A 5 P, C 0 Y)CI T'C") -75 S C) F- TTT -Y Use only one CN source per line. Totals = Ocs total product .18 WD Lq CN (weighted) Use CN = total area 2. Runoff Storm ill Storm #2 Storm #3 Frequency .............................. yr 2 is Rainfall, P (24-hour) ................... in @'. 0 1 Runoff, Q .............................. in 3.1 (Use P and CN with table 2-1, fig. 2-1, or eqs. 2-3 and 2-4.) Figure 2-8.-Worksheet 2 for example 2-4. 2-16 (210-VI-TR-55, Second Ed., June 1986) Chapter 3: Time of concentration 'and travel time Travel time (Tt) is the time it takes water to travel management system. Slope will, tend to increase from one location to another in a watershed. Tt is a when channels are straightened and decrease w component of time of concentration (T,), which is the overland flow is directed through storm sewers, time for runoff to travel froin the hydraulically most street gutters, and diversions. distant point of the watershed to a point of interest within the watershed. T, is computed by summing all the travel times for consecutive components of the Computation of travel time and drainage conveyance system. time of concentration T, influences the shape and peak of the runoff hydrograph. Urbanization usually decreases T,, Water moves through a watershed as sheet flov thereby increasing the peak discharge. But T, can be shallow concentrated flow, open channel flow, oj increased as a result of (a) ponding behind small or some combination of these. The type that occur, inadequate drainage systems, including storm drain function of the conveyance system and is best inlets and road culverts, or (b) reduction of land slope determined by field inspection. through grading. Travel time (Tj is the ratio of flow length to fl( velocity: Factors affecting time of concentration and travel time Tt L [E 3600 V Surface roughness where One of the most significant effects of urban Tt = travel time (hr), development on flow velocity is less retardance to L = flow length (ft), flow. That is, undeveloped areas with very slow and V = average velocity (ft/s), and shallow overland flow through vegetation become 3600 = conversion factor from seconds to hour modified by urban development: the flow is then delivered to streets, gutters, and storm sewers that Time of concentration (T,) is the suni of Tt valu transport runoff downstream more rapidly. Travel the various consecutive flow segments: time through the watensbed is generally decreased. Channel shape and flow patterns where T, = Ttj , Tt.2 + ... Ttm [E In small non-urban watersheds, much of the travel T, = time of concentration (hr) and time results from overland flow in upstream areas. in = number of flow segments. Typically, urbanization reduces overland flow lengths by conveying storm runoff into a channel as soon as possible. Since channel designs have efficient hydraulic characteristics, runoff flow velocity increases and travel time decreases. Slope Slopes may be increased or decreased by urbanization, depending on the extent of site grading or the extent to which storm sewers and street ditches are used in the design of 'L-Ihe water (210-VI-TR-55, Second Ed., June 1086) .50 ==Mum mmm'="w Mumma 111111M MM T 1 117 fill I I I I 1 11 ASSUME IF I I I F 4-:17M i 11111111 1 I I TA I I 1 11 MI I .2o 1-@ III AIR TI 11111110 111 41 -10 0 4- 1 Qq 111111111 1 4-- 11 #j 7 see a; Amr, -M-M-n-T --- 1--T--F-l .06 I'M I I 1 11111 1 1 1 1 I A1111' AIM 101INII .04 0 1 1 1 ffr HIH I I f I I A I lFl 11111 1 1 1 1 Y1 I 1111111 A I I AF Y I .02 1 IA 111 11 11 .01 .005 1 2 4 6 10 20 Average velocity, ft/sec Figure 3-1-Average velocities for estimating travel time for shallow concentrated flow. z@T moo 3-2 .(210-VI-TR-55, Second Ed., June 1986) Sheet flow where Sheet flow is flow over plane surfaces. It usually Tt = travel time (hr), occurs in the headwater of streams. With sheet flow, n = Manning's roughness coefficient (table 3-1), the friction value (Manning's n) is an effective L = flow length (ft), roughness coefficient that includes the effect of P, = 1-year, 11-hour rainfall (in), and raindrop impact; drag over the plane surface; s = slope of hydraulic grade line (land slope, obstacles such as litter, crop ridges, and rocks; and ft/ft). erosion and transportation of sediment. These n values are for very shallow flow depths of about 0.1 This simplified form of the Manning's kinematic foot or so. Table 3-1 gives Manning's n values for solution is based on the following: (1) shallow steady sheet flow for various surface conditions. uniform flow, (2) constant intensity of rainfall excess (that part of a rain available for runoff), (3) rainfall For sheet flow of less than 300 feet, use Manning's duration of 24 hours, and (4) minor effect of kinernatic solution (Overton and Meadows 1976) to infiltration on travel time. Rainfall depth can be compute Tt: Tt = 0.007 (nL)0.8 [Eq. 3-3] obtained from .appendix B. (P2)0.5 SOA Shallow concentrated flow After a maximum of 300 feet, sheet flow usually becomes shallow concentrated flow. The average velocity for this flow can be determined from figure Table 3-I.-Roughness coefficients (Manning's n) for 3-1, in which average velocity is a function of sheet flow watercourse slope and type of channel. For slopes less than 0.005 ft/ft, use equations given in appendix Surface description F for figure 3-1. Tillage can affect the direction of shallow concentrated flow. Flow may not always be directly down the watershed slope if tillage runs Smooth surfaces (concrete, asphalt, gravel, or across the slope. bare soil) ................................... 0.011 Fallow (no residue) .......................... -0.05 After determining average velocity in figure 3-1, use equation 3-1 to estimate travel time for the shallow Cultivated soils: concentrated flow segment. Residue cover <, 20% ...................... 0.06 Residue cover > 20% .................... 0.17 Open channels Grass: Short grass prairie ........................ 0.15 Open channels are assumed to begin where surveyed Dense gra- ,seS2 ............................ 0.24 cross section information has been obtained, where Bermudagrass ............................. 0.41 channels are visible on aerial photographs, or where Range (natural) ............................. 0.13 blue lines (indicating streams) appear on United States Geological Survey (USGS) quadrangle sheets. Woods:," Manning's equation or water surface profile Light underbrush .......................... 0.40 information can be used to estimate average flow Dense underbrush ............. I ........... 0.80 velocity. Average flow velocity is usually determined for bank-full elevation. 'The n values are a composite of information compiled by Engman (1986). 21neludes species such as weeping lovegrass, bluegrass, buffalo grass, blue grama grass, and native grass mixtures. 3When selecting n, consider cover to a height of about 0.1 ft. This is the only part of the plant cover that will obstruct sheet flow. (210-VI-TR-55, Second Ed., June 1986) 3-3 Manning's equation is A culvert or bridge can act as a reservoir outlet if there is significant storage behind it. The 1.49 r2/3 S1/2 (Eq. 3-41 procedures in TR-55 can be used to determine the V n peak flow upstream of the culvert. Detailed storage routing procedures should be used to where determine the outflow through the culvert. V = average velocity (ft/s), r = hydraulic radius (ft) and is equal to a/pw, Example 3-1 a = cross sectional flow area (ft2), p, = wetted perimeter (ft), s = slope of the hydraulic grade line (channel The sketch below shows a watershed in Dyer slope, ft/ft), and County, northwestern Tennessee. The problem is to n = Manning's roughness coefficient for open compute T, at the outlet of the watershed (point D). channel flow. The 2-year 24-hour rainfall depth is 3.6 inches. All three types of flow occur froin. the hydraulically most Manning's n values for open channel flow can be distant point (A) to the point of interest (D). To obtained from standard textbooks such as Chow compute T, first determine Tt for each segment (1959) or Linsley et al. (1982). After average velocity from the following information: is computed using equation 3-4, Tt for the channel segment can be estimated using equation 3-1. Segment AB: Sheet flow; dense grass; slope (s) 0.01 ft/ft; and length (L) = 100 ft. Segment BC: Shallow concentrated flow; unpaved; Reservoirs or lakes s = 0.01 ft/ft; and L = 1400 ft. Segment CD: Channel flow; Manning's@ n = .05; Sometimes it is necessary to estimate the velocity of flow area (a) = 27 ft2; wetted flow through a reservoir or lake at the outlet of a perimeter (pj = 28.2 ft; s = 0.005 watershed. This travel time is normally very small ft/ft; and L = 7300 ft. and can be assumed as zero. See figure 3-2 for the computations made on Limitations worksheet 3. � Manning's kinematic solution should not be used for sheet flow longer than 300 feet. Equation 3-3 was developed for use with the four standard rainfall intensity-duration relationships. 100 ft 1 400 ft 7 300 ft � In watersheds with storm sewers, carefully (not to scale) identify the appropriate hydraulic flow path to estimate T, Storm sewers generally handle only a small portion of a large event. The rest of the peak flow travels by streets, lawns, and so on, to the outlet. Consult a standard hydraulics textbook to determine average velocity in pipes for either pressure or nonpressure flow. � The minimum T, used in TR-55 is 0.1 hour. 3-4 (210-VI-TR-55, Second Ed., June 1986) Worksheet 3: Time of concentration (Tc) or travel time (Tt) Project H eave-ty A,-, By Date t0kias- Location Checked 2@y Date )0181as one: Present Circle @.Ioped@) Circle one: Ttthrough subarea NOTES: Space for as many as two segments per flow type can be used for each worksheet. Include a map, schematic, or description of flow segments. Sheet flow (Applicable to T c only) Segment ID 14, a 1. Surface description (table 3-1) ............ 2. Manning's roughness coeff., n (table 3-1) .. 0.24 3. Flow length, L (total L < 300 ft) .......... ft @ 0 0 4. Two-.yr 24-hr rainfall, P 2 ................... in 3. G 5. Land slope, a ............................... fL/ft (D. C) I 6. Tt . 0.007 (nL) 0.8 Compute Tt ...... hr + P 0.5 0.4 Shallow concentrated flow Segment ID B C 7. Surface description (paved or unpaved) .... P. ".4 8. Flow length, L ............................. ft 00 9. Watercourse slope, s ....................... ft/ft 10. Average velocity, V (fk-gure 3-1) ........... ft/ s 11. T T L Compute T ....... h, + t 600 V t Channel flow Segment ID 12. Cross sectional flow area, a ............... ft2 2-7 13. Wetted perimeter, pw ....................... ft 14. Hydraulic radius, r = Pw- Compute r ....... ft c).95'7 15. Channel slope, S ........................... ft/ft 16. Manning's roughness coeff., n .............. 17. V = 1.49 r 2/3 s1/2- Compute V ... .... ft/s 2-0-S n 18. Flow length, L ............................. f t -1 --:@ 0 c)I 19. Tt . L Compute Tt ...... hr + 3600 v 20. Watershed or subarea T c or Tt (add T tin steps 6, 11, and 19) ........ hr Figure 3-2.-Worksheet 3 for example 3-1. (210-VI-TR-55, Second Ed., June 1986) 3- 5 Chapter 4: Graphical Peak Discharge method This chapter presents the Graphical Peak Discharge 1.0 - method for computing peak discharge from rural and urban areas. The Graphical method was developed .8 from hydrogTaph analyses using TR-20, "Computer Program for Project Formulation-Hydrology" (SCS 1983). The peak discharge equation used is .6 qp = quAI,Q:Fp [Eq. 4-1] -:1 CN=40 .4 - 50 where 60 qp = peak discharge (cfs); .2 - so 70 q,, = unit peak discharge (csinfin); An = drainage area (Mi2); 0 Q = runoff (in); and 1 3 5 7 9 11 13 15 Fp = pond and swamp adjustment factor. Rainfall (P), inches The input requirements for the Graphical metho d are Figure 4-I.-Variation of 1,,/P for P a .nd CN. as follows: (1) T, (hr), (2) drainage area (Mi2), (3) appropriate rainfall distribution (1, IA, II, or 111), (4) Table 4-1-1,, values for runoff curve numbers 24-hour rainfall (in), and (5) CN. If pond and swamp areas are spread throughout the watershed and are Curve la Curve la not considered in the T, computation, an adjustment number Oll) number (in) for pond and swamp areas is also needed. 40 3.000 70 0.857 41 2.878 71 0.817 Peak discharge computation 42 2.762 72 0.778 43 2.651 13 0.740 44 2.545 74 0.703 45 2.444 75 0.667 For a selected rainfall frequency, the 24-hour rainfall 46 2.348 76 0,632 (P) is obtained from appendix B or more detailed 47 2.255 77 0.597 local precipitation maps. CN and total runoff (Q) for 48 2.167 78 0.564 the watershed are computed according to the 49 2.082 79 0.532 methods outlined in chapter 2. Th6 CN is used to 50 2.000 80 0.500 determine the initial abstraction (IJ from table 4-1. 51 1.922 81 0.469 la/P is then computed. 52 1.846 82 0.439 53 1.774 83 0,410 If the computed la/P ratio is outside the range shown 54 1.704 84 0.381 in exhibit 4 (4-1, 4-IA, 4-11, and 4-111) for the rainfall 55 1.636 85 0.353 distribution of interest, then the limiting value 56 1.571 86 0.326 57 1.509 87 0.299 should be used. If the ratio falls between the limiting 58 1.448 88 0.273 values, use linear interpolation. Figure 4-1 illustrates 59 1.390 89 0.247 the sensitivity of la/P to CN and P. 60 1.333 90 0.222 61 1.279 91 0.198 Peak discharge per square mile per inch of runoff 62 1.226 92 0.174 (%) is obtained from exhibit 4-1, 4-IA, 4-11, or 4-111 63 1.175 93 0.151 by using T, (chapter 3), rainfall distribution type, and 64 1.125 94 0.128 Ia/P ratio. The pond and swamp adjustment factor is 65 1.077 9.5 0.105 obtained from table 4-2 (rounded to the nearest table 66 1.030 96 0.083 value). Use worksheet 4 in appendix D to aid in 67 0.985 97 0.062 computing the peak discharge using the Graphical 68 0.941 98 0.041 method. 69 0.899 1 (210-VI-TR-55, Second Ed., June 1986) 4-1 Table 4-2.-Actiustment factor (Fp) for pond and swamp Example 4-1 areas that are spread throughout the watershed Percentage of pond and swamp areas FP Compute the 25-year peak discharge for the 250-acre 0 1.00 watershed described in examples 2-2. and 3-1. Figure 0.2 0.97 4-2 shows how worksheet 4 is used to compute qp as 1.0 0.87 345 cfs. 3.0 0.75 5.0 0.72 Limitations The Graphical method provides a determination of peak discharge only. If a hydrograph is needed or watershed subdivision is required, use the Tabular Hydrograph method (chapter 5). Use TR-20 if the watershed is very complex or a higher degree of accuracy is required. 9 The watershed must be hydrologically homogeneous, that is, describable by one CN. Land use, soils, and cover are distributed uniformly throughout the watershed. * The watershed may have only one main stream or, if more than one, the branches must have nearly equal T,'s. - The method cannot perform valley or reservoir routing. * The Fp factor can be applied only for ponds or swamps that are not in the T, flow path. * Accuracy of peak discharge estimated by this method will be reduced if I,/P values are used that are outside the range given in exhibit 4. The limiting Ia/P values are recommended for use. * This method should be used only if the weighted CN is greater than 40. - When this method is used to develop estimates of peak discharge for both present and developed conditions of a watershed, use the same procedure for estimating T.. * T, values with this method may range from 0.1 to 10 hours. 4-2 .(210-VI-TR-55, Second Ed., June 1986) Worksheet 4: Graphical Peak Discharge method Project Hecxve-vn@i. A,-,reS By Q VA Date \0@15@as- Location JD Ye r" C 7 @,Av@ e- VSCe Checked -V14 Date J6 -71a5- Circle one: Present 1. Data: Drainage area .......... Am = mi2 (acres/640) 'Runoff curve number .... CN = -7 (From worksheet 2) ;:*kJuVP- Z-(D Time of concentration .. Tc = 1,.53 hr (From worksheet 3) ) PicatAr,-- 3-2- Rainfall distribution type = (I, IA, II, III) Pond and swamp areas spread 2 throughout watershed ...... = percent of A m acres or mi covered) S t o rm---#-l Storm #2 Storm #3 2. Frequency ............................... yr @5 3. Rainfall, P (24-hour) ................... in 0 4. Initial abstraction, I ................. in w7l -L,, o 3 a (Use CN with table 4-1.) 5. Compute I a/P ............................. 0.11 6. Unit peak discharge, qu csm/in Z -7 Q (Use T c and I a/P with exhibit 4--U 7. Runoff, Q ............................ in (From worksheet 2). F i c3 u r-&- -Z - G 8. Pond and swamp adjustment factor, F p .... (Use percent pond and swamp area with table 4-2. Factor is 1.0 for zero percent pond and swamp area.) 9. Peak discharge, q,p ...................... cfs (Where qp quAm QFp) Figure 4-2.-Worksheet 4 for example 4-1. (210-VI-TR-55, Second Ed., June 1986) 4-3 Exhibit 44: Unit peak discharge (q.) for SCS type I rainfall distribution 500 101 300 NN 0 0 200 - IN, -N Cr 0- aj 0 0__ 100 Qj 80 00 .45 2h 60 0. 5G ........... 40 .2 .4 .6 .8 1 2 4 6 8 10 Time of concentration (TC), hours 0 fiO.50 Exhibit 4-IA: Unit peak discharge (q.) for SCS type IA rainfall distribution 200 C7 /P 0.15 E 0. ?0 (n U 1P 100 :3 Cr ZO Cn 80 F M U I [N 3 P- 60 4-) 00 =D 0.50- 40 30 .1 .2 .4 .6 .8 1 2 4 6 8 10 'r., g/p-- PO5 0- Time of concentration (TC-)I- hours Exhibit 4-11: Unit peak discharge (q,,) for SCS type 11 rainfall distribution 1000-1-1"Q.- I I I IIIII I Soo OMMORMOR 9!qnmh.@, 0 600 500 - 400 - -7 NO M-4111 bk.-. RUN 4 R ::5 300 Cr NEW 'Z CD L CD 200 U 100 80 60 50 1 1 1 1 1 1 1 1 1 1 V I 1 1 7M h %N?Q 1 .2 .4 .6 .8 1 2 4 6 8 10 Time of concentration (TC), inches Exhibit 4-111: Unit peak discharge (q.) for SCS type III rainfall distribution 700 - 600 - C? IIII J /P Soo - 0-- ft1ft --7--im-6024 I I I ONCE-11110 400 - E Ln u 300 I011h.- Cr -7 kill, 200 ro _I_- U Q-4 z 100 80 Sib-- 60 f, I's 40 1 1 . .1 .2 .4 .6 .8 1 2 6 8 10 _71-M 7rqo Time of concentration (TC), hours Chapter 5: Tabular Hydrograph method This chapter presents the Tabular Hydrograph and added at the reference point. The tabular method of computing peak discharges from rural and hydrographs in exhibit 5 are prerouted hydrographs. urban areas, using time of concentration (To and For Tt's other than zero, the tabular discharge travel time (TJ from a subarea as inputs. This values represent the contribution from a single method approximates TR-20, a more detailed subarea to the composite hydrograph at Tt hydrograph procedure (SCS 1983). downstream. The Tabular method can develop partial composite flood hydrographs at any point in a watershed by Information required for Tabular dividing the watershed into homogeneous subareas. Hydrograph method In this manner, the method can estimate runoff from nonhomogeneous watersheds. The method is especially applicable for estimating the effects of land The following information is required for the Tabular use change in a portion of a watershed. It can also method: be used to estimate the effects of proposed structures. 1. Subdivision of the watershed into areas that are relatively homogeneous and have convenient Input data needed to develop a partial composite routing reaches. flood hydrograph include (1) 24-hour rainfall (in), (2) 2. Drainage area of each subarea in square miles. appropriate rainfall distribution (I, IA, II, or 111), (3) 3. T, for each subarea in hours. The procedure for CN, (4) T, (hr), (5) Tt (hr), and (6) drainage area (mi'). estimating T, is outlined in chapter 3. Worksheet 3 (appendix D) can be used to calculate T,. 4. Tt for each routing reach in hours. The procedure Tabular Hydrograph method exhibits for estimating Tt is outlined in chapter 3. Worksheet 3 can be used to calculate Tt through a subarea for shallow concen@rated and open Exhibit 5 (5-1, 5-IA, 5-11, and 5-111) shows tabular channel- flow. discharge values for the various rainfall distributions. 5. Weighted CN for each subarea. Table 2-2 shows Tabular discharges expressed in esm/in (cubic feet of CN's for individual hydrologic soil cover discharge per second per square mile of watershed combinations. Worksheet 2 can be used to per inch of runoff) are given for a range of subarea calculate the weighted runoff curve number. T,'s from 0.1 to 2 hours and reach Tt's from 0 to 3 6. Appropriate rainfall distribution according to hours. figure B-2 (appendix B). 7. The 24-hour rainfall for the selected frequency. The exhibit was developed by computing Appendix B contains rainfall maps for various hydrographs for 1 square mile of drainage area for frequencies (figures B-3 to B-8). selected T,'s and routing them through strearn 8. Total runoff (Q) in inches computed from CN and reaches with the range of Tt's indicated. The rainfall. Modified Att-Kin method for reach routing, 9- la for each subarea from table 5-1, which is the formulated by SCS in the late 1970's, was used to same as table 4-1. compute.the tabular hydrographs (Comer et al., 10. Ratio of 1,,/P for each subarea. If the ratio for the 1981). A CN of 75 and rainfall amounts generating rainfall distribution of interest is outside the appropriate Ia/P ratios were used. The resulting range shown in exhibit 5, use the limiting value. runoff estimate was used to convert the hydrographs in exhibits 5-1 through 5-111 to cubic feet per second per square mile per inch of runoff. An assumption in development of the tabular hydrographs is that all discharges for a stream reach flow at the same velocity. By this assumption, the subarea flood hydrographs may be routed separately (210-VI-TR-55, Second Ed., June 1986) 5-1 Development of composite flood worksheet 5b to develop a tabular hydrograph hydrograph discharge summary; this summary displays the effect of individual subarea hydrographs as routed to the watershed point of interest. Use 7.Tt for each This section describes the procedure for developing subarea as the total reach travel time from that the peak discharge and selected discharge values of a subarea through the watershed to the point of composite flood hydrograph. interest. Compute the hydrograph coordinates for selected XTt's using the appropriate sheets in exhibit 5. The flow at any time is Selecting Tc and Tt q = qtA,Q [Eq. 5-1]1 First, use worksheet 5a to develop a summary of basic watershed data by subarea. Then use where q = hydrograph coordinate (cfs) at hydrograph time t; qt = tabular hydrograph unit discharge from ex- hibit 5 (esm/in); An = drainage area of individual subarea (Mi2); Table 5-L-1a values for runoff curve numbers and Q = runoff (in). Curve la Curve 1, number (in) number (ill) Since the timing of peak discharge changes with T, 40 3.000 70 0.857 and Tt, interpolation of peak discharge for T, and Tt 41 2.878 71 0.817 values for use in exhibit 5 is not recommended. 42 2.762 72 0.778 Interpolation may result in an estimate of peak 43 2.651 73 0.740 discharge that would be invalid because it would be 44 2.545 74 0.703 lower than either of the hydrographs. Therefore, 45 2.444 75 0.667 round the actual values of T, and Tt to values 46 2.348 76 0.632 ), so that presented in exhibit 5. Perform this roundin@, 47 2.255 77 0.597 the sum of the selected table values is close to the 48 2.167 78 0.564 sum of actual T, and Tt. An acceptable procedure is 49 2.082 79 0.532 to select the results of one of three rounding 50 2.000 80 0.500 operations: 51 1.922 81 0.469 52 1.846 82 0.439 1. Round T, and Tt separate-1v to the nearest table 53 1.774 83 0.410 54 1.704 84 0.381 value and sum; 55 1.636 85 0.353 2. Round T, down and Tt up to nearest table value 56 1.571 86 0.3126 and sum; and 57 1.509 87 0.299 3. Round T, up and Tt down to nearest table value 58 1.448 88 0.273 and sum. 59 1.390 89 0.247 60 1.333 90 0.222 From these three alternatives, choose the pair of 61 1.279 91 0.198 rounded T, and Tt values whose sum is closest to the 62 1.226 92 0.174 sum of the actual T, and Tt. If two rounding 63 1.175 93 0.151 methods produce'sums equally close to the actual 64 1.125 94 0.128 sum, use the combination in which rounded 11 65 1.077 95 0. 10 5 , is 66 1.030 96 0.083 closest to actual T, An illustration of the rounding 67 0.985 97 0.062 procedure is as follows: 68 0.941 98 0.041 69 0.899 5-2 (210-Vl-TR-55, S econd Ed., June 1986) Table values by rounding Limitations Actual method- values 1 2 3 The Tabular method is used to determine peak flows and hydrographs within a watershed. However, its T, 1.1 1.0 1.0 1.25 accuracy decreases as the complexity of the Tt 1.7 1.5 2.0 1.5 watershed increases. If you want to compare present Sum 2.8 2.5 3.0 2.75 and developed conditions of a watershed, use the same procedure for estimating T, for both conditions. In this instance, the results from method 3 would be Use the TR-20 computer program (SCS- 1983) instead selected because the sum 2.75 is closest to the actual of the Tabular method if any of the following sum of 2.8. conditions applies: * Tt is greater than 3 hours Gargest Tt in exhibit 5). Selecting Ia/P a T, is greater than 2 hours (largest T. in exhibit 5). The computed la/P value can be rounded to the nearest IjP value *in exhibits 5-1 through 5-111, or e Drainage areas of individual subareas differ by a the hydrograph values (csm/in) can be linearly factor of 5 or more. interpolated because Ia/P interpolation generally involves peaks that occur at the same time. e The entire composite flood hydrograph or entire runoff volume is required for detailed flood routings. The hydrograph based on extrapolation Summing for the composite hydrograph is only an approximation of the entire hydrograph. The composite hydrograph is the summation of * The time of peak discharge must be more accurate prerouted individual subarea hydrographs at each than that obtained through the Tabular method. time shown on worksheet 5b. Only the times encompassing the expected maximum composite The composite flood hydrograph should be compared discharge are summed to define a portion of the with actual stream gage data where possible. The composite hydrograph. instantaneous peak flow value from the composite flood hydrograph can be compared with data from If desired, the entire composite hydrograph can be USGS curves of peak flow versus drainage area. approximated by linear extrapolation as follows: 1. Set up 4 table similar to worksheet 5b. Include on this'table the full range of hydrograph times displayed in exhibit 5. 2. Compute the subarea discharge values for those times and insert them in the table. 2. Sum the values to obtain the composite hydrograph. 4. Apply linear extrapolation to the first two points and the last two points of the composite hydrograph. The volume under this approximation of the entire composite hydrograph may differ from the computed runoff volume. (210-VI-TR-55, Second Ed., June 1986) 5-3 Examples appropriate values provides the peak discharge (q) for subarea 4 at 14.6 hr: A developer proposes to put a subdivision, q = qt(AmQ) = (274XO.70) = 192 efs. Fallswood, in subareas 5, 6, and 7 of a watershed in Dyer County, northwestern Tennessee (see sketch Once all the prerouted subarea hydrographs have below). Before approving the developer's proposal, been tabulated on worksheet 5b, sum each of the the planning board wants to know how the time columns to obtain the composite hydrograph. development would affect the 25-year peak discharge The resulting 25-year frequency peak discharge is at the downstream end of subarea 7. The rainfall 720 efs at 14.3 hr (figure 5-2). distribution is type II (figure B-2), and the 24-hour rainfall (P) is 6.0 inches (figure B-6). Example 5-2 Example 5-1 Compute the 25-year frequency peak discharge at the downstream end of subarea 7 for the developed Compute the 25-year frequency peak discharge at the conditions, using worksheets 5a and 5b. downstream end of subarea 7 for present conditions, using worksheets 5a and 5b. To do this, first First, calculate the developed condition CN, T, and calculate the present condition CN, Te, and Tt for Tt for each subarea, using the procedures in chapters each subarea, using the procedures in chapters 2 and 2 and 3. Enter the values on worksheet 5a (figure 3. Enter the values on worksheet 5a (figure 5-1). 5-3). Next, compute the prerouted hydrog-raph points for Next, compute the prerouted hydrograph points for .each subarea hydrograph over a range of time near each subarea hydrograph over a range of time near the peak discharge using worksheet 5b (figure 5-2) the peak discharge using worksheet 5b (figure 5-4) and the appropriate exhibit 5. For example, for and the appropriate exhibit 5. For example, for subarea 4, in which T, = 0.75 hr, refer to sheet 6 of subarea 6, in which T, = 1.0 hr, refer to sheet 7 of exhibit 5-11. With 5:Tt of 2.00 hr (the sum of exhibit 5-11. With Y-Tt of 0.5 hr (downstream travel downstream travel th-ne through subareas 5 and 7 to time through subarea 7 to the outlet) and Ia/P Of 0.1, the outlet) and Ia/P of 0.1, the routed peak discharge the peak discharge of subarea 6 at the outlet of the of subarea 4 at the outlet of subarea 7 occurs at 14.6 watershed occurs at 13.2 hr and is 311 esm/in. hr and is 274 esm/in. Solving equation 5-1 with Solving equation 5-1 provides the peak discharge (q): q = qt(AmQ) = (311)(1.31) = 407 efs. Once all the prerouted subarea hydrographs have 2 been tabulated on worksheet 5b, sum each of the time columns to obtain the composite hydrograph. . ....... The resulting 25-year frequency peak discharge is 872 efs at 13.6 hr (figure 5-4). 4 Subarea ...................... Stream Comparison 6 5 According to the results of the two examples, the watershed proposed subdivision at the downstream end of ............ boundary subarea 7 is expected to increase peak discharge from 720 to 872 cfs and to decrease the time to peak 7 ......... Subarea from 14.3 to 13.6 hr. boundary 5-4 (210-VI-TR-55, Second Ed., June 1986) Worksheet 5a: Basic watershed data Project 'Fa i (SNOC>A Location 1),qer- C-OV-4--f) By T)W Date \0@\ @8!; Circle one: (@@ Developed Frequency (yr) Checked Date JC)@J)a Subarea Drainage Time of Travel Downstream Travel 24-hr Runoff Run- Initial name area concen- time subarea time Rain- curve off abstrac- tration through names summation fall number tion subarea to outlet Am Tc Tt 7T t P CN Q AmQ Ia Ia/P (mi2 (hr) (hr) (hr) (in) (in) (mi 2_in) (in) C) e. _3,S 0 . -7 1 I.c)-7-7 0.18 0. @)O I.SO :3, S) -7 0. 2 0 2 S' 31 -7 O-GO (n,.O _70 Z.(BO 0.14 P Cf) 0 - DO 0. 3 3 7 0. 11 C> 2.00 (o.0 -7c) 2. 80 0. -7 0 0.8 S -7 0.14 0 (,).0. _7S 3.28 0-4_>6 -7 0.11 0. zo -7 0.(16 O.-7@5 G.0 -7 0 0-8 G (0. qO I.S0 -7 S@ 0.141 00 75 3-28 0-(-@> I -7 0 - ZO t t t t t t t t t t t t t t t + t t t t t t From worksheet 3 From worksheet 2 From table 5-1 Figure 5-I.-Worksheet 5a for example 5-1. Worksheet 5b: Tabular hydrograph discharge summary Project 1F, I ks woocL Location r- C,@v,4,1 'ev"ACSSCP- By Date -10 es- Circle one: (@ Developed Frequency (yr) 2,5 Checked Date 1013 16?"-- Basic watershed data used Select and enter bydrograph times in hours from exhibit 5-= 21 area to I /P A MQI Subarea Sub- ZTt a 1-3. a] I L@i AD a )L+./. ZCT&S- name @] 1 .2. .01 \3.i3-41 13.6 L TC outlet 2_ Discharges at gelected hydragraph tivaes 3/ (hr) (hr) (mi in) - - - - - - -- - - - - - - - - - - - - (cfs) - - - - - - - - - - - - - - - - - - - - - Z. so O.to 06-71 4 S t6 1-3 2- L4 LA @LA 1@@ -2. So 0-(0 O.S(O 3 L4 L4 G --J -3 '2@ &4 J).0 12-7 O.So 2.00 0. 10 0-33 7-1 L-41 (o7 98 C) L+ 0.75 Z-CO C>-10 0. -7 1 Li z 0 3 H 02- z I LAIi at 61 S- 1.90 0.-75 0. ID C). (. (0 50 e 3 -J (6 1471/59 16'f ?--7 6 -6 _-z_ 4 4 1.50 O.-7S 0, ICI (z LA-1 P57 140 2-CO ZL49 ?-G@ Z(. H4 --7S- CD 1),101 (69 lb-71 -ZOS7 I-N. --kLio 1 8 51 L-40 --;s I Z4 63 rC,--p,,itje hydrograph at outlet cc 2LA(- Z-841 3@@ 433 SOZ S-)S_ (o,3(o 68& -12-0 -70/ 1/ Worksheet 5a. Rounded as needed for use with exhibit 5. 2/ Enter rainfall distribution type used. -11 Hydrograph discharge for selected times is A mQ multiplied by tabular discharge froin appropriate exhibit 5. Figure 5-2.-Worksheet 5b for example 5-1. Worksheet 5a: Basic watershed data Project Fc. I Is -,icocL Location D-le, c,.-4y, 1 @e GSO-- By Date las- Circle one: Present Frequency (yr) Checked Da. t. e al@lz I AS- Subarea Drainage Time of Travel Downstream Travel 24-hr Runoff Run- Initial name area concen- time subarea time Rain- curve off abstrac- tration through names summation fall number tion subarea to outlet Am T c Tt ET t P CN Q AM.Q Ia Ia /P 2 2_ (mi (hr) (hr) (hr) (in) (in) I (mi in) (in) @7-1 _e@ 17-1 t o. -@)O -7 3 @d &I z 0.20 t. 2 3,S,7 2. pO fo 0 -7 0 2.80 O.SG 0-8S7 0.14 P Cn -7 2 B 0. M 3 0.!TO 0 0 S -7 3 "7 0. 11 -7 0 s 6, - 0 2.80 0 8S 7 0.114 1. 00 -7 (0.0 - 8(:;" 0. 3S3 00 - -31 -7 6. C) 0,14 00 9@ 0.2-0 0 . _75 0. eo 6. 0 go 4.26 O.q7 0.2Z2- 0.0 t t t t t t t t t t t t t t t t t t t t t t From worksheet 3 From worksheet 2 From table 5-1 Figure 5-3.-Workshect 5a for example 5-2. 60 Worksheet 5b: Tabular hydrog-raph discharge surnmary Project T:-,o I k-svi0ocl- Location "D-Jef- COV""41) By t0tJ Date JCh les- Circle one: Present Frequency (yr) 2-5 Checked Date 1(@ 7- Basic watershed data used Select and enter hydrograph times in hours from exhibit 5-'IZ -Z/ name area to Subarea 'Sub- Ut a M .1 13-41 )3- GI 13.81 114.01 14-31 1 t-.,. 1:5.9 T outlet Discharges at selected hydrograph times 3/ (hc) .(hr) I (Mil-w - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - t. 150 2.CO 0. 10 0. 17 1 1 1 Z,4 L4 0 -76 12-2- IS-S- 133 (-Z5 10 0. 6, -7 2- 2-0 33 5-S- 9(. 132- 132- 87 58 69 1 0 G I OZ -7 3 0-50 1-50 0.10 0.3-3 9 7 L4 Li 0--15 (.50 0'(0 0-10 (9 12-- 4-3 W-A 9 Z- 0-1 19-5 V-A 3 83 4 1.@;O O.S-0 0. @ 0 0. 8 6 11-1 1 L-7 Z05 -Z-) 4 -2-02- 1-7 S-. -) 11 -q 9 '10 L+8 1-00 0. 50 0-10 1-31 @91 2,09 -331 '407 -393 3 2-9 ZSS @SS F@,4 9-7 (-9 52- M @:5 -7 c)--@s o o.v 0.9-7 3 90 3 58 2,44' 1 @7 9 59 L4 8 40 1 3 L4 0 30 (D Composite hydrograph at outlet 00 (.3 0 -1 --39, 8 Zc) J 8-1 -2- 1 833 Worksheet 5a. Rounded as needed for use with exhibit 5. 2/ Enter rainfall distribution type used. Hydrograph discharge for selected times is AmQ multiplied by tabular discharge from appropriate exhibit 5. Figure 5-4.-Workshect 5b for example 5-2. Exhibit 5-1: Tabular hydrograph unit discharges (csm/in) for type I rainfall distribution TQVL - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - HYDRCGRAPH T-M; (HOURS) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - TIME 9.3 9. 9 1 C . 1 10.3 1 C . 5 1 C . 7 11 .0 11.4 11 .8 12.3 13.0 14.0 15 .0 16.0 18.0 24 .0 (HP) 9.0 9.6 10.0 1 C . 2 10.4 10.6 10.8 11.2 11.6 1 2 . C 12.6 13. 5 14. 5 15 .5 17.0 20.0 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1A/P = 0.1c * * * TC =0.1 HR * * * * IA/P = 0.10 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - +- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 0.0 30 40 56 183 337 5C4 326 155 122 107 93 81 73 66 60 56 54 52 49 46 44 40 36 32 30 29 28 27 26 24 20 13 .10 26 35 46 93 153 276 428 360 223 156 123 1C3 83 72 65 59 56 54 51 47 45 42 37 33 30 29 28 28 26 24 21 13 .20 23 30 41 6-) 52 129 227 361 360 269 194 147 11 a , B5 71 63 58 55 53 49 46 43 39 35 31 29 29 28 26 24 21 14 70 29 39 56 136 22 73 111 1 88 303 341 293 227 173 94 75 65 60 56 54 50 47 43 39 35 31 29 29 28 26 25 21 14 4() 15 25 34 46 53 66 96 157 255 312 300 251 199 1 26 90 73 64 59 56 52 48 44 40 36 32 30 29 23 26 25 21 14 51, 1 3 24 32 44 50 61 84 133 214 280 293 265 221 144 39 77 66 60 56 52 49 45 41 37 32 30 29 28 27 25 21 14 75 14 19 25 34 38 43 49 62 88 134 190 234 252 221 162 115 87 71 63 56 52 47 43 39 35 31 29 29 27 25 22 15 1.13 1 1 1 4 1 0 26 28 31 34 38 44 52 68 98 141 222 238 19+1 139 101 79 63 56 51 45 41 37 33 30 29 27 26 22 15 I. 5 9 10 13 17 1 S 20 22 25 27 30 34 38 44 74 1 ! 2 191 211 190 151 101 73 58 50 45 41 37 33 30 28 27 23 16 ?.0 6 7 9 11 12 13 14 15 16 18 20 22 24 29 38 58 97 148 193 193 141 89 61 51 46 41 37 33 29 27 24 17 2 .5 4 5 7 8 9 9 10 11 11 12 13 14 16 19 23 29 39 58 93 154 181 147 87 61 51 45 41 37 30 28 25 18 .0 2 3 5 6 6 7 7 8 9 9 10 10 11 13 15 19 23 28 39 72 124 170 1 38 36 61 50 45 40 33 29 26 19 ----------------------------------- ----------------------------------------------------------------------------------------- 61 14/p = 0. 30 TC =0.1 HR !A/P = 0.30 'p, -------------------------------------------------------------------------------------------------------------------------- *- - - - - - - - - w C . r" C 0 0 t 1 195 343 232 129 113 103 91 81 76 71 66 64 62 61 59 56 54 51 47 43 40 40 39 30 37 3.6 31 21 .10 9 0 0 12 45 145 277 247 16q 131 112 98 87 76 70 65 64 62 60 57 55 53 49 44 40 40 39 39 38 36 32 21 20 0 0 0 9 33 1C7 220 238 1,92 151 1 25 107 @4 79 71 66 64 62 61 58 56 53 49 45 41 40 40 39 35 36 32 21 .30 -D 0 0 1 6 24 79 173 216 200 168 139 118 90 77 70 66 64 62 59 57 54 50 46 41 40 40 39 39 36 32 22 .40 0 0 0 1 4 17 59 135 189 196 177 152 129 97 81 72 67 64 63 60 57 54 51 46 42 40 40 39 38 36 32 22 .5C C 0 0 0 0 3 12 43 104 161 185 180 161 121 93 79 71 66 64 61 58 55 52 48 43 40 40 39 38 37 33 22 .7-1 C) 0 0 0 0 1 5 18 49 92 1 30 153 159 142 1 14 92 79 71 66 63 60 56 53 49 44 41 40 40 38 37 33 23 1 . 0 0 0 0 0 0 0 0 0 2 9 27 56 92 144 152 128 103 86 75 67 63 59 55 51 47 43 40 40 39 37 34 24 1 . 5 D 0 0 0 0 0 0 0 0 0 0 2 6 32 79 121 136 127 1C9 85 72 64 58 55 51 47 43 40 39 38 34 25 2. 0 0 0 0 C 1) 0 0 0 0 G 0 0 0 1 9 33 70 105 126 118 97 75 63 58 54 50 46 42 40 39 35 26 2 .5 C, 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 11 32 63 105 118 100 75 63 58 5 4 50 46 40 39 36 27 3.0 0 0 0 0 J 0 0 0 0 0 0 0 0 0 0 0 1 3 12 43 84 11 2 96 74 63 58 54 50 42 40 37 28 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.50 * * * TC =0.1 HR * * * IA/P := 0.50 -------------------------- *--------------------------------------------------------------------------------------------------------- 0.0 0 0 0 0 0 3 1 3 28 39 44 45 46 46 48 49 51 53 54 54 55 56 55 53 50 50 49 49 49 49 48 45 32 . 10 0 0 0 0 0 2 9 22 33 41 44 45 46 48 49 50 52 54 54 54 56 55 53 50 50 49 49 49 49 48 45 32 .2.3 0 0 0 0 ID 0 1 7 17 28 36 41 44 46 48 49 51 53 54 54 56 56 54 51 50 5C 49 49 49 48 45 32 .30 0 0 0 0 0 I'D 0 1 5 13 23 32 38 44 47 48 50 51 53 54 54 55 54 52 50 50 -49 49 49 48 46 33 .40 0 0 0 0 0 0 0 0 3 10 1 F 27 34 43 46 48 49 51 53 54 54 55 54 52 50 50 49 49 49 48 46 33 5 0 C) 0 C 0 0 0 0 0 0 2 7 1 5 23 36 43 46 48 50 51 53 54 55 55 53 50 50 49 49 49 48 46 34 75 0 0 0 0 0 0 0 0 0 1 3 7 13 27 37 43 46 48 50 52 54 55 55 54 51 50 50 49 49 48 46 34 .0 0 0 C 0 0 0 0 0 0 0 0 0 1 5 20 32 40 45 47 50 52 54 55 54 52 50 50 49 49 49 47 36 1 .5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 5 13 23 33 42 47 51 54 55 54 53 50 50 49 49 48 37 2.0 0 0 0 G 0 0 0 0 0 0 0 0 0 0 0 0 1 5 12 25 37 46 51 54 55 54 52 50 49 49 48 39 2 . 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 5 15 31 45 51 53 55 54 52 50 49 48 41 3.0 0 0 0 0 a 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 14 32 45 51 53 54 54 51 49 48 42 ---------------------------------------------------------------------------------------------- +------------------------------------- RAINFALL TYPE = I TC = C. I HR SHEiT 1 OF I0 Exhibit 5-1, continued: Tabular hydrograph unit discharges (csm/in) for type I rainfall distribution TRVL - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - HYDROGRAPH TIME (HOURS) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - TIME 9.3 9.9 1 Q. 1 10.3 10.5 10.7 11.0 11.4 11.8 12.3 13.0 14.0 15.0 16.0 18.0 24.0 (MR) 9.0 9.6 10.0 10.2 10.4 10.6 1C.8 11.2 11.6 12.0 12.6 13.5 14.5 15.5 17.0 20.0 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.10 * * * TE =0.2 HR * * * IA/P = 0.10 ------------------------------------------------------------------------------------------------------------------------------------ 0.0 28 37 52 12.6 220 379 405 267 168 129 108 92 80 69 62 58 55 53 50 47 44 41 37 33 30 29 28 27 Z6 24 21 13 .10 24 32 44 71 108 182 113 375 303 213 157 124 103 78 68 61 57 55 52 49 46 42 38 34 30 29 29 28 26 24 21 14 -2D 21 28 38 53 65 94 153 260 336 314 247 137 145 97 77 67 60 57 54 50 47 44 39 35 31 30 29 28 26 25 21 14 .30 2D 27 36 50 60 82 129 216 296 308 267 214 168 110 82 69 62 58 55 51 47 44 40 36 32 30 29 28 26 2.5 21 14 .40 17 23 31 42 47 56 74 111 181 258 291 275 234 152 103 79 68 61 57 53 49 45 41 37 33 30 29 28 27 25 22 14 . 50 16 22 30 40 45 52 66 96 153 223 269 273 247 171 115 86 71 63 58 54 50 46 42 37 33 30 29 28 27 25 22 14 .75 13 17 24 32 35 39 44 52 68 99 145 194 229 240 183 132 97 77 66 58 53 48 44 39 35 31 30 29 27 26 22 15 1.0 11 13 17 24 26 29 32 35 39 45 56 75 107 189 229 206 1 58 115 98 67 58 52 46 42 38 34 31 29 28 26 23 15 1. 5 8 10 12 15 17 19 21 23 25 25 31 35 39 60 1C6 166 204 197 165 112 79 60 51 46 42 37 33 30 28 27 23 16 2 . 0 5 7 9 10 11 12 13 14 15 17 18 20 22 27 34 49 79 126 169 188 152 97 64 52 46 42 38 34 29 28 24 17 <i 2 .5 3 5 6 8 8 9 10 10 11 12 13 14 15 18 22 26 34 49 77 1 36 176 155 95 64 52 46 42 37 31 28 25 18 17, 3. 0 2 3 4 5 6 6 7 7 a 8 9 9 10 11 13 16 19 23 29 49 91 154 167 102 67 53 47 42 34 29 26 19 @-3 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - I- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - @t !A/P = 0.30 * * * TC =0.2 HR * * * IAIP = 0.30 61 ------------------------------------------------------------------------------------------------------------------- ---------- P m 0.0 0 0 0 22 76 206 258 207 144 119 104 92 82 74 6a 65 63 62 60 57 55 52 46 44 40 40 39 39 38 36 32 21 CD . 1 C. 0 0 0 3 16 56 1 56 224 213 167 135 114 99 81 73 67 65 63 61 58 56 53 50 45 41 40 40 39 38 36 32 22 .20 0 0 C 2 11 41 118 189 205 1 79 150 126 109 85 75 69 65 63 . 62 59 56 54 50 46 41 40 40 39 38 36 32 22 .30 0 0 0 0 2 8 30 53 155 188 182 161 138 103 83 74 68 65 63 60 57 55 51 47 42 40 40 39 38 36 32 22, .40 0 0 0 1 6 22 66 126 167 177 166 147 111 88 76 69 66 613 61 58 55 51 47 43 40 40 39 38 37 33 22 .50 0 0 C 0 0 1 4 16 50 100 145 167 166 136 1 C 5 55 75 69 65 62 59 56 53 49 44 41 40 40 38 37 33 23 .75 0 0 0 0 0 0 2 7 22 50 87 11.9 140 148 1 24 101 85 74, 69 6.4 61 57 54 50 45 42 40 40 38 37 33 23 1 .0 9 0 0 0 0 0 0 0 1 3 11 28 55 114 142 135 113 93 80 69 64 60 56 52 48 44 41 40 39 37 34 24 1. 5 0 0 0 0 0 a 0 a 0 0 0 1 2 17 52 97 124 129 115 91 75 65 59 55 52 48 43 41 39 38 35 25 r@o 2.n 0 0 0 13 0 13 0 0 0 0 0 0 0 4 19 49 84 11 1 120 102 79 65 59 55 5 1 47 43 40 39 36 26 2. 5 0 0 0 0 0 G 0 0 0 0 0 0 0 1 6 20 45 89 113 104 78 65 59 55 51 47 41 39 36 28 7.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 7 30 68 103 99 77 65 58 54 50 43 40 37 29 -------------------------------------------------------------------- 1A/P = 0.50 * * * 1C =0.2 HR 1A/P 0.50 --------------------------- *------------------------------------------------------------------------------------------------- 0 . 0 0 0 0 G 0 0 4 15 28 38 43 45 45 48 49 50 5 @ 53 53 53 53 53 53 50 50 50 49 49 49 49 45 32 1 1-1 0 1) 0 0 0 0 3 11 22 32 40 43 45 47 48 50 52 53 53 53 53 53 53 50 50 50 4 ? 49 49 48 45 32 20 0 0 0 0 0 0 2 8 17 27 36 41 43 46 48 49 51 53 53 53 53 53 53 51 50 50 49 49 49 48 45 33 .30 0 0 0 0 0 0 1 6 13 23 --- 1 38 41 45 48 49 51 52 53 53 53 53 53 51 50 50 49 49 49 48 46 33 0 .3 1) 0 0 r. 1 4 10 19 27 34 39 44 47 49 50 52 53 53 53 53 53 51 50 50 49 49 49 45 46 33 0 0 01 .,0 C. 0 0 1 3 8 15 23 30 36 43 46 48 50 51 53 53 53 53 53 52 50 50 49 '4 ? 49 48 46 33 .75 c 0 0 0 G 0 0 0 3 8 14 20 27 37 43 46 48 50 52 53 53 53 53 52 50 50 50 49 49 48 46 34 i .0 0 C C. 0 0 0 0 0 0 0 0 2 4 14 26 36 42 46 48 51 52 53 53 53 52 50 50 49 49 49 47 35 1.5 0 0 0 0 0 0 a 13 0 0 0 0 -D 1 5 13 23 33 40 46 49 52 53 53 53 51 50 50 49 49 48 37 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 8 16 26 37 44 50 52 53 53 53 51 50 49 49 48 38 2. 5 0 0 9 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 8 19 31 43 50 52 53 53 52 51 50 49 48 39 3.0 0 0 0 0 0 0 0 0 0 0 0 0 C. 0 0 0 0 0 0 3 11 25 41 49 52 53 53 52 50 49 48 41 -------------- *----------- +--------------------------------------------------------------------------------------------------------- RAINFALL T@PE = I TC = C.2 MR SHE ET 2 OF 10 Exhibit 5-1, continued: Tabular hydrograph unit discharges (csm/in) for type I rainfall distribution TRVL -: -------------------------------------------------- HYDROGRAPH TIME (HOURS) --------------------------------------------------- TIME 9.3 9.9 10.1 10.3 10.5 10.7 11.0 11 .4 11 .8 12.3 13.0 14.0 15.0 16.0 18.0 24.0 (HR) 9.0 (; . 6 10.0 1 C . 2 10.4 10.6 1 C . 8 11. 2 11.6 12.0 12-6 13. 5 14. 5 15. 5 17.0 20.0 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.1C * * * TC =0.3 HR * * * IA/P = C. 10 ------------------------------------------------------------------------------------------------------------------------------------ 0.0 25 34 46 37 138 242 349 346 256 182 141 115 97 76 66 60 57 54 52 48 45 42 38 34 30 29 25 23 26 24 21 13 .10 24 32 44 77 118 200 299 330 281 215 166 132 109 82 69 62 58 55 52 49 46 42 38 34 30 29 29 28 2'6 24 21 14 .20 21 28 38 54 69 102 167 255 305 289 240 190 152 103 79 67 61 57 54 50 47 44 40 35 31 30 29 23 26 25 21 14 .30 20 27 36 51 63 89 141 217 276 235 255 212 172 115 25 71 63 58 55 51 48 44 40 36 32 30 29 28 26 25 21 14 .40 17 23 31 42 48 58 79 120 185 246 272 260 228 156 1 L18 82 69 62 57 53 49 45 41 37 33 3C 29 28 27 25 22 14 .50 16 22 30 40 45 54 70 104 158 216 253 258 238 173 120 89 72 63 58 54 50 46 42 37 33 30 29 28 27 25 22 14 .75 13 17 24 32 35 39 45 54 72 104 147 189 21Q 231 182 135 100 79 67 58 53 48 44 40 35 32 30 29 27 26 22 15 1.0 11 13 17 24 26 29 32 35 40 46 58 79 110 184 221 202 158 118 90 68 59 52 46 42 38 34 31 29 28 26 23 15 1 . 5 9 10 12 15 17 19 21 23 25 28 31 35 40 62 1C7 163 199 193 165 114 81 61 52 46 42 37 33 31 28 27 23 16 2.0 5 7 9 10 11 12 13 14 15 17 18 20 22 27 35 50 80 125 165 184 152 99 64 53 47 42 38 34 29 2 5 24 17 2.5 3 5 6 8 8 9 10 10 11 12 13 14 1 5 18 22 27 35 50 78 134 173 154 96 64 52 46 42 37 31 28 25 18 3.0 2 3 4 6 6 7 7 8 8 '9 9 10 11 12 14 17 21 26 34 61 107 164 145 94 64 52 46 41 33 29 26 19 @-3 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.30 * * * TC =0.3 HR * * * !A/P = 0.30 ------------------------------------------------------------------------------------------------------------------------------------ P 0.0 0 0 0 8 32 98 198 217 192 148 125 108 95 79 72 67 64 63 61 58 56 53 49 45 41 40 40 39 38 36 32 22 Cn .10 0 0 0 1 6 23 73 156 197 194 164 138 118 91 77 70 66 64 62 59 57 54 50 46 41 40 40 39 38 36 32 22 .20 0 0 0 1 4 17 54 122 172 187 171 149 128 98 81 72 67 64 63 60 57 54 51 46 42 40 40 39 38 36 32 22 .30 0 0 0 0 0 3 12 40 95 146 173 172 157 120 94 79 71 67 64 61 58 55 52 48 43 40 4C 39 38 37 33 23 .40 0 0 0 0 0 2 9 30 73 122 156 167 160 1 Z 8 100 83 73 68 65 62 59 56 52 48 44 41 40 39 38 37 33 23 .50 0 0 0 0 0 1 6 22 56 100 137 157 159 135 107 87 76 69 65 62 59 56 53 49 44 41 40 40 38 37 33 23 75 0 0 0 0 0 0 1 3 9 26 53 86 115 143 134 113 93 80 72 65 62 58 54 51 46 42 40 40 39 37 33 23 1.0 0 0 0 0 0 0 0 0 1 5 14 32 57 111 138 132 113 94 81 69 64 60 56 52 48 44 41 40 39 37 34 24 1 .5 0 0 0 0 0 0 0 0 0 0 0 0 1 8 34 74 111 126 121 99 80 67 61 56 53 49 44 41 39 38 35 26 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 11 33 66 97 118 108 84 67 60 56 52 48 44 40 39 36 27 00 2. 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 12 3 2 74 106 112 83- 67 60 56 52 48 41 39 37 28 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 21 54 98 107 81 67 60 55 51 43 40 37 29 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.50 * * * TC =0.3 HR * * * IA/P = 0.50 ------------------------------------------------------------------------------------------------------------------------------------- 0.0 0 0 0 0 0 0 1 6 16 27 36 41 44 46 48 49 51 52 52 52 52 52 52 51 50 50 49 49 49 46 46 33 .10 0 0 0 0 0 0 1 4 12 22 31 38 42 45 48 49 51 52 52 52 5Z 52 52, 51 50 50 49 49 49 48 46 33 .20 @0 0 0 0 0 0 0 3 9 18 27 34 39 44 47 49 50 51 52 52 52 52 52 51 50 50 49 49 49 48 46 33 .30 0 0 0 0 0 0 0 2 7 14 23 30 36 43 46 48 50 51 52 52 52 52 52 51 50 50 49 49 49 48 46 33 .40 0 0 0 0 0 0 0 1 5 11 19 26 33 41 46 48 49 51 52 52 52 52 52 52 50 50 49 49 49 48 46 33 .50 0 0 0 0 0 0 0 1 4 9 15 23 30 39 44 47 49 50 51 52 52 52 52 52 50 50 49 . 49 49 48 46 33 .75 0 0 0 0 0 0 0 0 2 4 8 14 20 31 40 44 47 49 51 52 52 52 52 52 50 50 50 49 49 48 46 34 1 .0 0 0 0 0 0 0 0 0 0 0 0 1 2 9 20 31 39 44 47 50 51 52 52 52 52 50 50 5,0 49 49 47 36 1 .5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 9 18 28 36 44 48 51 52 52 52 51 50 50 49 49 48 37 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 5 12 21 33 42 48 51 52 52 52 51 50 49 49 48 38 2.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 5 15 27 40 48 51 52 52 52 51 50 49 48 40 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 11 25 41 48 51 52 52 51 50 49 48 41 --------------------------------- -------------------------------------------------------------------------------------------------- RAINFALL TYPE = I TC = 0.3 HR -SHEET 3 OF 10 Y, Exhibit 5-1, continued: Tabular hydrograph unit discharges (csm/in) for type I rainfall distribution TRVL ------------------- 7------------------------------- HYDROGRAPH TIME (HOURS) --------------------------------------------------- TIME 9.3 9.9 10.1 10.3 10.5 10.7 11.0 11.4 11.8 12.3 13.0 14.0 15.0 16.0 18.0 24.0 (HR) 9.0 9.6 10.0 10.2 10.4 10.6 10.8 11.2 11.6 12.0 12.6 13.5 14. 5 15.5 17.0 20.0 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.10 * * * TC =0.4 HR * * * IA/P = 0.10 ----------- 7 ------------------------------------------------------------------------------------------------------------------------ 0.0 23 31 42 66 96 157 250 310 304 244 186 149 122 89 73 64 59 56 53 49 46 43 39 35 31 29 29 28 26 25 21 14 .10 22 29 40 61 84 133 211 277 295 261 211 170 138 98 78 66 60 56 54 50 47 43 39 35 31 29 29 28 26 25 21 14 .20 19 26 34 47 56 75 114 178 244 278 267 230 190 128 93 75 65 59 56 52 48 44 40 36 32 30 29 28 27 25 21 14 .30 18 24 33 45 53 67 99 152 213 257 263 241 207 143 1C2 80 68 61 57 52 49 45 41 37 32 30 29 28 27 25 21 14 .40 15 21 28 38 43 49 61 86 130 185 233 253 245 188 132 97 77 66 60 55 51 46 42 38 34 30 29 28 27 25 22 14 .50 15 20 27 36 41 46 56 76 112 161 209 238 243 201 146 106 82 69 61 55 51 47 42 38 34 31 29 29 27 25 22 14 .75 12 16 21 29 32 35 39 46 57 77 108 147 184 220 2CD 157 118 91 74 61 55 50 45 40 36 32 30 29, 27 26 22 1 5 1.0 10 12 16 21 24 26 29 32 36 40 48 61 83 147 202 21 2 178 138 105 75 62 54 47 43 39 35 31 29 28 26 23 1 6 1.5 8 9 11 14 16 17 19 21 23 25 28 31 35 50 83 134 179 193 177 131 92 65 53 47 42 38 34 31 29 27 24 16 2.0 5 6 8 10 10 11 12 13 14 15 17 18 20 25 31 42 64 102 144 179 163 111 70 55 48 43 39 35 30 28 25 17 2.5 3 4 6 7 8 8 9 9 10 11 12 13 14 16 20 24 30 42 63 114 160 170 1 C7 70 54 47 43 38 31 29 25 18 171 3.0 2 3 4 5 6 6 7 7 8 a 9 9 10 11 13 16 19 23 30 51 90 148 161 104 69 54 47 42 34 29 26 19 @-3 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.3C * * * TC =0.4 HR * * * 1A/P = 0.30 ------------------------------------------------------------------------------------------------------------------------------------ 0.0 0 0 0 3 14 48 115 184 192 178 148 127 111 88 77 70 66 64 62 59 56 54 50 46 41 40 40 39 33 36 32 22 (D .10 0 0 0 0 2 10 35 89 152 179 178 158 137 105 85 75 69 65 63 60 58 55 51 47 42 40 40 39 38 36 32 22 n 0 .20 0 0 0 0 2 7 26 68 124 161 172 163 146 113 90 78 70 66 64 61 58 55 52 47 43 40 40 39 38 37 33 22 .30 0 0 0 0 1 5 19 52 100 140 1 62 162 151 120 96 81 72 67 64 61 59 55 52 43 43 41 4D 39 38 37 33 23 M .40 0 0 0 0 0 1 4 14 39 30 120 148 158 142 114 92 79 7.1 67 63 60 57 53 49 45 41 40 40 38 37 33 23 p- .50 0 0 0 0 0 1 3 10 29 63 101 132 152 145 120 97 82 73 68 63 60 57 53 50 45 41 40 40 38 37 33 23 .75 0 0 0 0 0 0 0 1 4 13 31 58 87 130 138 123 103 87 77 68 63 59 55 51 47 43 41 40 39 117 34 24 1.0 0 0 0 0 0 0 0 0 0 2 7 18 36 86 125 134 122 104 88 73 66 61 57 53 49 45 41 40 39 38 34 24 (D 1. 5 0 0 0 0 0 0 0 0 0 0 0 0 1 10 36 75 109 124 12D 100 81 68 61 56 53 49 44 41 40 38 35 26 2 . 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 6 22 50 83 116 116 91 70 61 57 53 49 45 40 39 36 27 00 2. 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 8 22 60 97 111 88 70 61 56 53 48 42 39 37 28 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 14 43 39 1C6 86 69 .61 56 52 44 40 37 29 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.5C * * * TC =0.4 HR * * * IA/P = 0.50 ------------------------------------------------------------------------------------------------------------------------------------ 0.0 0 0 0 0 0 0 0 2 8 17 27 34 40 44 47 49 50 51 51 51 51 51 51 51 50 50 49 49 49 48 46 33 .10 0 0 0 0 0 0 0 0 2 6 1 3 22 30 40 45 47 49 50 51 51 51 51 51 51 50 50 50 49 49 48 45 34 .20 0 0 0 0 0 0 0 0 0 1 4 10 1 8 33 41 45 48 49 51 51 51 51 51 51 50 50 50 49 49 49 46 34 .30 0 0 0 0 0 0 0 0 0 0 1 3 8 22 35 42 46 48 50 51 51 51 51 , 51 51 50 50 49 49 49 47 35 .40 0 0 0 0 0 0 0 0 0 0 1 2 6 19 32 40 45 47 49 51 51 51 51 51 51 50 50 49 49 49 47 35 .50 0 0 0 G 0 0 0 J) 0 0 0 0 2 9 23 34 41 45 48 50 51 51 51 51 51 50 50 49 49 49 47 35 .75 0 0 0 0 0 0 0 0 0 0 0 0 1 5 14 26 35 42 46 49 50 51 51 51 51 50 50 50 49 40 47 36 1.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 5 14 25 35 44 48 50 51 51 51 51 50 50 49 49 4F 37 1.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 6 13 27 39 47 50 51 51 51 51 50 49 49 48 39 2.0 0 0 0 0 0 0 0 0 0 0 a 0 0 0 0 0 0 0 2 9 21 36 47 50 51 51 51 51 50 49 48 46 2. 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 6 19 37 47 50 51 51 51 50 4q 4E 42 3.0 0 0 0 0 0 0 L, 0 0 0 0 0 0 0 0 0 0 0 0 0 1 8 25 40 48 50 51 51 50 50 49 43 ------------------------------------------------------------------------------------------------------------------------------- 4---+- RAINFALL TYPE = I TC C.4 HR SHEET 4 OF 10 Exhibit 5-1, continued: Tabular hydrograph unit discharges (esm/in) for type I rainfall distribution I TRVL - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - HYDRCGRAPH TIME (HOURS) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - TIME 9. 3 9.9 10.1 10.3 10.5 10.7 11 . G 11 .4 11 .8 12. 3 13.0 14.0 15.0 16.0 18.0 24.0 CHR) 9.0 9.6 10.0 10.2 10.4 10.6 1 G. 8 11 .2 11.6 12.0 12.6 13. 5 14.5 15.5 17.0 20.0 ------------------------------------------------------------------------------------------------------------------------------------ 14/P = 0.10 * * * TC =0.5 HR * * * IA/P = 0.10 ------------------------------------------------------------------------------------------------------------------------------------ C.0 21 2E 35 56 73 111 175 247 282 271 229 186 152 108 84 71 63 58 55 51 47 44 40 35 31 30 29 28 26 25 21 14 1 C 20 27 36 52 66 96 149 214 259 267 242 204 169 119 90 74 65 59 55 51 48 44 40 36 32 30 29 29 26 25 21 14 -0 185 234 256 247 219 156 112 86 72 63 58 53 49 45 41 37 33 30 29 28 27 25 22 14 .1- 17 23 31 42 49 60 E4 127 .30 16 22 30 40 46 55 74 1 10 160 210 241 245 2Z7 171 123 93 76 66 59 54 50 46 42 38 33 30 29 28 27 25 22 14 .40 14 19 26 35 38 43 51 67 95 133 186 222 237 210 157 11 5 89 73 64 57 52 47 43 39 35 31 29 29 27 25 22 15 - 50 14 18 25 33 37 41 48 61 84 120 lo4 203 229 216 170 126 96 77 66 58 53 48 43 39 35 31 30 29 27 25 22 15 .75 11 14 19 26 29 32 35 40 48 61 83 114 148 202 210 176 1 37 1C6 84 66 57 51 46 41 37 33 30 29 28 26 22 15 1.0 10 11 1 5 19 21 24 26 29 32 36 41 50 65 116 176 203 190 1 56 122 85 67 56 49 44 40 35 32 30 28 26 23 16 1 .5 7 9 11 13 14 16 17 19 21 23 25 29 31 42 67 110 157 187 13 3 146 1C4 72 55 48 43 39 35 32 29 27 24 17 2.0 4 6 7 9 10 10 11 12 13 14 15 17 18 22 27 36 53 33 123 175 175 124 77 57 49 44 40 35 30 28 25 18 2 . 5 3 4 5 7 7 8 8 9 9 10 11 12 13 15 18 22 27 36 53 97 146 166 119 76 57 49 44 39 32 29 25 18 3. 0 1 2 3 5 5 6 6 6 7 8 8 9 9 11 12 15 17 21 27 43 76 135 158 11 4 75 57 48 43 35 30 26 19 ------------------------------------------------------------------------------------------------------------------------------------- TA/P = 0.30 TC =0.5 HR IA/P = 0.30 ---------- ------------------------------------------------------------------------------------------------------------------------- P C . 0 0 0 a 1 6 22 64 123 168 174 165 143 126 100 84 74 68 65 63 60 57 54 51 47 42 40 40 39 38 36 32 22 m .10 0 0 1 5 16 48 .98 144 164 165 150 134 106 87 77 70 66 63 60 58 55 51 47 42 40 40 39 38 36 32 22 .20 C 0 0 a 1 3 12 36 77 122 1 50 160 154 126 1C1 85 75 69 65 62 59 56 52 48 44 41 40 ' 39 38 37 33 23 .30 0 0 0 0 0 2 9 27 60 101 134 151 153 132 1C7 89 77 70 66 63 60 56 53 49 44 41 40 40 38 37 33 23 40 0 0 0 0 0 0 2 6 20 47 83 117 140 148 1 Z 5 102 86 76 69 64 61 57 54 50 46 42 40 40 39 37 33 23 50 0 0 0 0 0 0 1 5 15 36 68 101 127 144 130 108 90 78 71 65 62 58 54 50 46 42 40 40 39 37 33 23 .75 C 0 0 0 0 0 0 2 6 17 36 60 37 125 133 121 JG3 88 78 68 63 59 55 52 47 43 41 40 39 37 34 24 1 .0 0 0 0 0 0 0 0 0 0 1 3 9 21 62 106 130 126 112 96 78 69 62 57 54 50 46 42 40 39 3,8 34 25 0 0 0 0 0 0 0 0 0 0 0 1 6 23 56 92 115 120 106 87 71 62 57 49 42 40 38 35 26 .5 0 53 45 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 14 36 67 104 113 96 74 63 58 54 50 46 40 39 36 27 00 2 .5 C 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 5 15 47 85 109 93 73 63 57 53 49 42 40 37 28 3.0 0 0 a 0 0 0 0 ri 0 0 0 0 0 0 0 0 0 0 1 9 32 77 105 90 72 62 57 53 45 40 38 30 ------------------------------------------------------------------------------------------------------------------------------------ iA/P = 0. 50 * * * TC =0.5 HR * * * IA/P = 0.50 ------------------------------------------------------------------------------------------------------------------------------------ C . 0 0 0 C, 0 0 0 0 1 4 10 18 26 33 41. 45 47 49 50 50 50 50 50 50 50 50 50 50 49 49 48 46 3 3 .10 0 0 0 0 C 0 0 1 3 8 1 5 22 30 39 44 47 49 50 50 50 50 50 50 50 50 50 50 49 49 48 46 34 . 20 0 0 0 0 0 0 0 0 2 6 12 19 26 37 43 46 48 50 50 50 50 50 50 50 50 50 50 49 49 48 46 34 .30 0 0 0 0 0 0 0 0 1 4 9 16 23 34 41 45 48 49 50 50 50 50 50 50 50 50 50 49 49 49 46 34 .40 0 0 0 0 0 0 0 0 1 3 7 13 19 31 39 44 47 49 50 50 50 50 50 50 50 50 50 49 49 49 46 34 0 50 50 50 50 49 49 49 46 34 .,0 0 0 0 0 0 0 0 1 .2 6 10 16 28 37 43 46 48 50 50 50 50 50 .75 0 0 0 0 C 0 0 0 0 1 3 6 10 20 30 38 43 46 48 50 50 50 50 50 50 50 50 49 49 49 47 35 1 .0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 10 20 30 38 43 47 49 50 50 50 50 50 50 50 .49 49 47 36 1 .5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 6 14 23 31 41 46 49 50 50 50 50 50 50 49 49 48 38 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 6 13 25 36 45 49 50 50 50 50 50 49 49 48 39 2 .5 0 0 C 0 0 0 D 0 0 0 0 0 0 0 0 0 0 1 4 12 23 37 46 49 50 50 50 50 50 49 48 40 3.0 0 0 0 0, 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 8 21 37 46 49 50 50 50 50 49 48 42 ------------------------------------------------------------------------------------------------------------------------------------ RAINFALL TYPE = I TC = 0.5 HR SHEET' 5 OF 10 Exhibit 5-1, continued: Tabular hydrograph unit discharges (esm/in) for type I rainfall distribution TRVL -------------- 7 ------------------------------------ HYDRCGRAPH TIME (HOURS) --------------------------------------------------- T I MEE 9.3 9.9 1 C . 1 10.3 10. 5 10.7 11.0 11 .4 . 11.8 12.3 13.0 14.0 15.0 16.0 18.0 24.0 (HR) 9.0 9.6 10.0 1 C. 2 10.4 10.6 10-8 11 .2 11.6 12.0 12.6 13.5 14.5 15. 5 17.0 20.0 -------------------------------------------------------------------------------------------------------------------------- 4- - - - - - - - - IA/P = 0.10 * * * TC =0.75 HR * * * 1A/P = 0.10 ---------------------------------------------------------------------- 4------------------------------------------------------------- C . 0 16 22 30 41 47 59 82 119 167 209 229 233 212 161 122 97 80 69 62 56 51 46 42 38 33 31 29 28 27 25 22 14 10 14 19 26 35 39 44 54 72 104 146 188 215 227 197 150 116 93 77 68 59 53 48 43 39 35 31 30 29 27 25 22 1 5 .20 13 16 22 30 33 37 42 50 65 91 128 168 200 218 183 142 110 89 75 63 56 49 44 40 36 32 30 29 27 26 22 1 5 .30 12 16 21 28 31 35 39 46 59 80 112 149 183 214 191 151 118 94 79 65 57 50 45 41 36 32 30 29 27 26 22 1 5 .40 12 15 20 27 30 33 37 43 54 71 98 132 166 207 197 161 126 100 83 67 58 51 45 41 37 33 30 29 27 26 22 15 .50 1 1 13 18 24 26 29 2 2 36 41 49 64 87 117 178 2C4 186 152 120 96 74 62 53 47 42 38 34 31 29 28 26 23 1 5 .75 1 0 12 15 21 23 25 28 31 35 40 49 63 83 1 3e., 180 190 171 142 115 85 69 57 49 44 39 35 32 30 28 26 23 1 6 1 .0 8 10 12 16 17 19 21 23 25 28 31 35 42 66 110 158 186 180 1 57 116 86 65 53 46 42 38 34, 31 28 27 23 1 6 1 .5 5 7 8 10 1 1 12 13 14 15 17 18 20 2 2 27 35 52 ?3 124 159 174 147 102 69 54 47 42 38 34 30 28 24 17 2.0 3 5 6 8 3 9 10 11 12 13 14 1 5 18 22 27 36 52 80 131 165 148 99 68 54 47 42 38 31 28 25 19 2. 5 2 3 4 5 6 6 7 7 8 9 9 10 11 12 14 17 21 26 35 63 1G7 157 141 96 67 54 46 42 34 29 26 1 9 -1 .0 1 1 2 3 4 4 4 5 5 6 6 7 7 8 10 11 13 1 5 19 26 42 36 151 141 1 C 1 71 55 47 38 31 27 2 D - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 14/P = 0.30 TC =0.75 HR IA/P = 0.30 ------------------------------------------------------------------------------------------------------------------------------------ C . 0 0 0 0 0 1 4 14 35 69 105 131 143 1 46 124 1C4 89 79 72 68 64 60 56 53 49 44 41 40 40 38 37 33 23 .10 0 0 0 0 0 1 3 10 27 5 15 88 117 134 142 118 100 87 77 71 K- 6 62 58 54 50 46 42 40 40 39 37 33 23 20 0 0 0 0 D 0 2 7 20 43 73 102 123 137 123 105 90 80 73 66 62 58 54 50 46 42 4 C 40 39 37 33 23 1;0 0 0 0 0 0 0 0 1 5 15 34 60 88 125 134 118 101 88 79 69 64 60 55 52 48 43 41 4.0 39 37 34 24 40 0 0 0 0 0 0 0 1 4 - 12 27 49 75 118 131 121 1 Q 5 91 30 71 65 60 56 52 43 44 41 40 39 37 34 24 .50 C 0 G 0 0 0 0 1 3 9 21 3 Q 37 122 128 116 101 88 75 68 62 57 53 49 45 42 40 39 38 34 24 75 0 0 0 0 9 0 0 0 0 1 4 10 21 56 95 118 121 110 98 82 72 64 58 54 50 46 42 41 39 38 34 25 1.0 0 0 0 0 G 0 0 0 0 0 1 2 12 39 76 106 119 115 98 82 69 61 57 53 49 44 42 40 38 35 26 1 .5 0 0- 0 0 0 0 0 0 0 0 0 0 0 0 3 14 37 67 95 112 105 85 69 61 56 52 48 44 40 39 36 27 2.0 0 0 0 0 0 0 0 1 4 15 35 74 1 C 2 107 84 69 61 56 52 48 41 39 37 28 oo o 0 e 0 C 0 0 2 . 5 13 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 5 23 55 94 103 82 68 60 56 52 44 40 37 29 3.0 n_ 0 C ri 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 15 50 93 100 81 68 60 55 .47 41 38 30 ---------- *------------------------------------------------------------------- 4----------------------------------------------------- !A/P = 0.50 * * * TC =0.75 HR * * * 1A/P = 0.50 ------------------------------------------ ----------------------------------------------------------------------------------------- 0 0 0 0 0 0 0 0 0 1 2 5 10 17 29 37 42 45 48 49 49 49 49 49 49 49 49 49 49 49 4q 47 34 .10 0 a 0 0 0 0 0 0 0 2 4 8 14 26 35 41 45 47 49 49 49 49 49 49 49 49 49 4 1@ 49 49 47 35 .20 0 0 0 0 0 0 0 0 0 1 3 7 11 23 '3 3 39 44 47 48 49 49 49 49 49 49 49 49 49 49 49 47 35 .3 D 0 0 C 0 0 0 1) 0 0 1 2 5 9 20 30 38 43 46 48 49 49 4 (@ 49 49 49 49 49 49 49 49 47 35 .40 0 0 0 0 0 D 0 0 0 1 2 4 8 17 28 36 41 45 47 49 49 49 49 49 49 49 4 ? 49 49 49 47 35 .50 0 0 0 0 1) 0 C. 0 0 0 1 3 6 1 5 25 34 4 C 44 47 45 49 49 49 49 49 49 49 49 49 49 4 ? 35 .75 0 0 0 0 0 0 0 0 0 0 1 1 3 9 18 27 35 40 44 47 48 49 49 49 49 49 49 49 49 49 47 36 1 . C, 0 0 0, 0 13 0 0 0 0 0 0 0 1 4 10 18 27 35 40 4 5 48 49 49 49 49 49 49 49. 49 49 48 37 1.5 0 0 C 0 (1) 0 0 0 0 0 0 0 0 0 2 6 13 21 29 38 44 48 49 49 49 49 49 49 49 49 48 38 2.0 0 0 0 0 0 0 0 0 0 G 0 0 0 0 1 4 9 15 26 36 44 48 49 49 49 49 49 49 49 48 39 - 21 34 44 48 48 48 48 48 48 48 48 40 , . S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 11 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 3 19 35 44 48 48 48 48 48 49 48 42 ------------------------------------------------------------------------------------------------------ ----------------------------- RAINFALL TYPE = I TC = 0.75 HR SHEEI ',.Or Exhibit 5-1, continued: Tabular hydrograph unit discharges (csm/in) for type I rainfall distribution TRVL --------------------------------------------------- HYDROGRAPH TIME (HOURS) --------------------------------------------------- TIME 9.3 9.9 1C.1 10.3 10.5 10.7 11.0 11.4 11.8 12.3 13.0 14.0 15.0 16.0 19.0 24.0 (MR) 9.0 9.6 10.0 10.2 10.4 10.6 10.8 11.2 11.6 12.0 12.6 13. 5 14.5 15.5 17.0 20.0 ---------------------------------------- IA/P = 0.10 TC =1.0 MR IA/P 0.10 --------------------- 0.0 14 19 25 34 38 46 58 79 106 136 165 186 202 185 153 122 101 85 74 63 56 50 44 40 35 32 30 29 27 26 22 15 .10 13 18 24 32 36 42 53 70 94 1.22 151 174 194 188 160 130 106 89 77 65 57 50 44 40 36 32 30 29 27 26 22 1 5 .20 12 15 21 28 31 34 40 49 63 83 109 137 162 190 180 152 124 102 86 70 61 53 46 41 37 33 31 29 27 26 22 15 .30 12 15 20 26 29 33 37 45 57 75 98 124 149 187 183 159 131 107 90 73 62 53 47 42 37 33 31 29 28 26 23 1 5 .40 10 13 17 23 25 28 31 35 42 52 67 88 112 160 183 176 151 125 103 81 67 56 48 43 39 35 31 30 28 26 23 1 5 .50 10 13 16 22 24 27 30 33 39 48 61 79 101 148 181 181 157 131 108 84 69 58 49 43 39 35 32 30 28 26 23 16 .75 9 11 14 19 21 23 26 29 33 38 47 59 75 115 153 172 167 148 125 96 77 62 51 45 40 36 33 30 28 27 23 16 1.0 8 9 11 15 16 17 19 21 23 26 29 33 40 61 95 134 162 169 157 126 97 72 57 49 43 39 35 32 29 27 24 16 1.5 5 6 8 10 10 11 12 13 14 16 17 19 21 25 33 48 74 107 138 160 148 111 76 59 50 44 39 35 30 2@ 25 17 lp 2.0 3 4 6 7 8 8 9 9 10 11 12 13 14 17 20 25 33 48 71 11 5 153 153 108 75 58 49 43 39 32 29 25 13 2. 5 2 3 , 4 5 5 6 6 7 7 8 9 9 10 12 14 16 20 25 33 56 94 139 147 104 74 58 49 43 34 30 26 19 3.0 1 1 2 3 3 4 4 4 5 5 6 6 7 8 9 10 12 14 17 24 38 76 131 143 108 78 60 50 39 32 27 20 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.30 * * * TC =1.0 MR * * * IA/P = 0. 30 -------------------------------------------------- *------------------------------------------------------------------- 4- - - - - - - - - - - - - 0.0 0 0 0 0 1 2 7 17 34 55 79 99 114 128 114 100 89 80 74 68 63 59 54 51 46 43 41 40 39 37 33 23 Co .10 0 0 0 0 0 0 2 5 13 27 46 68 89 116 124 110 98 87 79 71 65 60 56 52 48 43 41 40 39 37 34 24 .70 0 0 0 0 0 0 1 4 10 21 37 58 78 109 121 113 101 90 81 72 66 61 56 52 48 44 41 40 39 37 34 24 .30 0 0 0 0 0 0 0 1 3 8 17 31 49 87 113 118 109 98 87 76 69 63 57 53 49 45 42 40 39 38 34 24 .40 0 0 0 0 0 0 0 1 2 6 13 25 41 78 107 117 111 101 90 78 70 63 58 54 50 45 42 41 39 38 34 25 . 5:0 0 0 0 0 0 0 0 0 2 5 10 20 34 69 100 115 113 103 93 80 71 64 58 54 50 46 42 41 39 38 34 25 .75 0 0 0 0 0 0 0 0 0 1 2 5 10 31 61 90 107 110 104 @90 79 69 61 56 52 48 44 41 40 38 35 25 1.0 0 0 0 0 0 0 0 0 0 0 0 1 3 12 33 61 89 105 169 99 86 73 64 58 54 50 45 42 40 38 35 26 1 .5 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 13 31 55 80 104 104 88 73 63 58 53 49 45 41 39 36 27 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 8 20 51 82 100 90 74 64 58 54 50 42 40 37 28 00 2. 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 13 37 76 98 88 73 64 58 53 45 41 38 30 3.0 0 0 0 0 d 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 9 34 77 95 86 73 63 58 49 42 38 31 ------------------------------------------------------------------------------------------------------------------------------------ IA:/P = 0.50 * * * TC =1.0 MR * * * IA/P = 0.50 ------------------------------------------------------------------------------------------------------------------------------------ 0.0 0 0 0 0 0 0 0 0 0 1 3 5 9 18 28 35 40 44 47 48 48 48 48 48 48 48 48 48 48 48 47 35 .10 0 0 0 0 0 0 0 0 0 1 2 4 7 16 25 .33 39 43 46 48 48 48 48 48 48 48 48 48 48 48 47 35 .20 0 0, 0 0 0 0 0 0 0 1 2 3 6 14 23 31 38 42 45 47 48 48 48 48 48 48 48 48 48 48 47 36 .30 0 0 0 0 0 0 a 0 0 0 1 3 5 12 21 29 36 41 44 47 48 48 48 48 48 48 48 48 48 48 47 36 .40 0 0 0 0 0 0 0 0 0 0 1 2 4 10 19 27 34 40 44 47 48 48 48 48 48 48 48 48 48 48 47 36 .50 0 0 0 0 0 0 0 0 0 0 1 2 3 9 16 25 33 38 43 46 48 48 48 48 48 48 48 48 48 48 47 36 .75 0 0 0 0 0 0 0 0 0 0 1 2 3 8 15 23 30 36 41 45 47 48 48 48 48 48 48 48 48 48 47 36 1.0 0 0 0 0 0 0 D 0 0 0 0 0 0 2 5 11 19 27 33 41 45 47 48 48 48 48 48 48 48 48 48 37 1.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 5 11 17 28 37 44 47 48 48 48 48 48 48 48 4'8 39 2.0. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 7 16 26 38 45 47 48 48 48 48 48 48 48 40 2.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 5 12 24 38 45 47 47 47 47 47 47 47 41 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 5 14 29 40 46 47 47 47 47 47 47 42 ------------------------------------------------------------------------------------------------------------------------------------ RAINFALL TYPE = I TC = 1.0 MR SHEET 7 OF 10 Exhibit 5-1, continued: Tabular hydrograph unit discharges (csm/in) for type I rainfall distribution TRVL --------------------------------------------------- HYDROGRAPH TIME (HOURS) - - - - - - - - - -I---------------------------------------- TIME 9.3 9.9 10 . 1 10.3 10.5 10.7 11.0 11.4 11.8 12.3 13.0 14.0 15.0 16.0 18.0 24.0 (HR) 9.0 9.6 10.0 10.2 10.4 10.6 1C.8 11.2 11.6 12.0 12.6 13.5 14.5 15. 5 17.0 20.0 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.10 * * * TC =1.25 HR * * * IA/P = 0.10 ------------------------------------------------------------------------------------------------------------------------------------ 0.0 12 16 22 29 33 38 47 61 80 103 127 149 164 180 163 138 115 98 85 71 62 53 47 41 37 33 31 29 27 26 22 15 .10 11 14 19 25 28 31 36 44 55 72 92 116 138 167 175 156 132 111 95 77 66 56 48 43 38 34 31 30 28 26 23 15 .20 11 14 18 24 27 30 34 40 50 65 83 105 127 160 172 160 138 116 99 80 68 57 49 43 39 34 31 30 28 26 23 15 .30 10 12 16 21 23 25 28 32 38 46 58 75 95 136 164 169 154 132 112 89 74 61 51 45 40 36 32 30 28 26 23 16 .40 9 12 15 20 22 24 27 30 35 42 53 68 86 126 157 167 157 137 117 92 76 62 52 46 40 36 33 30 25 a 6 23 16 .50 9 11 13 17 19 21 23 26 29 33 39 49 61 97 134 160 165 152 132 104 84 67 55 47 42 37 33 31 28 27 23 16 .75 7 9 11 14 15 17 18 20 22 25 28 32 38 59 90 124 150 159 152 126 101 77 60 51 45 40 35 32 29 27 24 17 1.0 6 8 10 12 13 14 15 17 19 20 23 25 29 40 60 91 123 148 157 144 11 8 88 66 54 47 41 37 33 29 27 24 17 1. 5 4 6 7 9 9 10 11 12 13 14 15 16 18 22 28 40 59 85 114 145 150 121 86 65 54 46 41 37 31 28 25 13 2.0 2 3 5 6 6 7 7 8 9 9 10 11 11 13 16 19 24 33 47 80 119 144 124 90 68 5 5 47 42 33 29 26 19 el 2.5 1 2 3 4 4 5 5 6 6 7 7 8 8 10 11 13 16 19 24 38 65 111 140 120 88 67 54 47 37 31 27 20 171 3.0 1 1 2 2 3 3 3 4 4 5 5 5 6 7 8 9 11 13 15 21 32 62 114 136 116 86 66 54 41 33 2,7 20 @j ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.30 * * * TC =1.25 HR * * * IA/P = 0.30 ------------ ------------------------------------------------------------------------------------------------------------------------ 0.0 0 0 0 0 0 1 4 10 21 35 53 71 86 106 115 104 94 86 79 72 66 61 56 52 48 44 41 40 39 37 34 24 (D .10 0 0 0 0 0 0 1 3 8 16 29 45 62 92 107 113 101 92 84 75 69 63 58 53 49 45 42 41 39 38 34 24 0 .20 0 0 0 0 0 0 1 2 6 13 23 37 54 84 1C4 110 104 94 86 77 70 64 58 54 49 45 42 41 39 38 34 24 .30 0 0 0 0 0 0 0 0 2 4 10 19 31 62 90 106 109 101 92 81 73 66 60 55 51 46 43 41 39 38 34 25 .40 0 0 0 0 0 0 0 0 1 3 8 15 26 55 83 102 107 IC3 94 53 74 67 60 56 51 47 43 41 39 38 35 25 .50 0 0 0 0 0 0 0 0 0 1 3 6 12 33 62 88 103 106 100 88 78 69 62 57 53 48 44 42 40 38 3 " 25 .75 0 0 0 0 0 0 0 0 0 0 0 1 3 12 31 56 80 97 103 97 87 75 65 59 55 50 46 43 40 39 35 26 1.0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 13 32 56 79 95 101 94 80 69 61 56 52 48 44 40 39 36 27 1.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 13 30 51 81 98 94 79 68 61 56 52 47 42 39 36 28 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 5 13 37 66 95 95 78 68 61 56 51 44 40 37 29 00 2.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 9 26 61 93 89 77 67 60 55 47 41 3 ! 30 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 6 24 64 91 87 76 66 60 50 43 39 31 --------------------------------------------------------------------------- 7--+- IA/P = 0.5C * * * TC =1.25 HR * * * IA/P 0. 50 ------------------------------------------------------------------------------------------------------------------------------------ 0.0 0 0 0 0 0 0 0 0 0 1 2 3 6 13 21 29 35 40 43 47 47 47 47 47 47 47 47 47 47 47 47 36 .10 0 0 0 0 0 0 0 0 0 0 1 3 5 11 19 27 34 39 42 47 47 47 47 47 47 47 47 47 47 47 47 36 .20 0 0 0 0 0 0 0 0 0 0 1 2 4 9 17 25 32 37 41 46 47 47 47 47 47 47 47 47 47 47 47 36 .30 0 0 0 0 0 0 0 0 0 0 1 2 3 8 15 23 30 36 40 45 47 47 47 47 47 47 47 47 47 47 47 36 .40 0 0 0 0 0 0 0 0 0 0 0 1 2 7 13 21 28 35 39 45 47 47 47 47 47 47 47 47 47 47 47 37 .50 0 0 0 0 0 0 0 0 0 0 0 1 2 6 12 19 27 33 38 44 46 47 47 47 47 47 47 47 47 47 47 37 .75 0 0 0 0 0 0 0 0 0 0 0 0 1 3 8 14 21 28 34 41 45 47 47 47 47 47 47 47 47 47 47 37 1.0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 5 11 17 24 34 41 46 47 47 47 47 47 47 47 47 47 38 1 .5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 5 10 19 29 39 45 47 47 47 47 47 47 47 47 40 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 9 18 30 41 46 47 47 47 47 47 47 47 41 2.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 7 1 7 31 41 46 47 47 47 47 47 47 42 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 '0 0 0 0 0 0 0 1 6 18 32 42 46 47 47 47 47 47 43 ------------------------------------------------------------------------------------------------------------------------------------ RAINFALL TYPE = I TC 1.25 HR SHEET 8 OF 10 Exhibit 5-1, continued: Tabular hydrograph unit discharges (esm/in) for type I rainfall distribution TRVL ------- 7 ------------------------------------------- HYCRCGRAPH TIME (HOURS) --------------------------------------------------- TIME 9. 3 9.9 1 C . 1 10.3 10 . 5 10.7 11.0 11 .4 11 .8 12.3 11.0 14.0 15.0 16.0 13.0 24. 0 (HR) 9.0 9.6 1 C . 0 1 C . 2 10.4 10.6 1 C . 8 11. 2 11.6 12.0 12.6 13.5 14.5 15.5 17.0 20.0 - - - - - - - - - - +- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - IA/P = 0.10 * * * T'- =1 .5 HR * * * *.A/P = 0.10 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 0 11 14 1 9 25 23 32 39 48 60 76 94 1 12 129 151 1t3 147 130 112 97 81 69 59 50 44 39 35 32 30 28 26 23 1 5 .10 10 12 16 22 24 27 30 36 44 55 69 86 103 135 152 159 143 125 1 C 8 88 75 62 52 46 41 36 32 30 28 26 23 16 2 D 9 11 14 19 21 23 25 29 34 41 50 63 ? 3 112 140 155 152 138 121 98 81 67 55 48 42 37 33 31 28 27 23 16 3 0 9 11 1 4 1 S 20 2 2 24 27 31 38 46 57 71 104 133 151 154 141 125 101 84 63 56 48 43 39 34 31 29 27 23 16 .40 8 10 13 17 19 2 1 23 26 30 35 42 52 63 96 12 5 147 1 5 ',' 144 129 105 87 70 57 49 43 38 34 31 29 27 23 16 .5C 8 9 1 2 15 17 IS 20 22 25 28 33 39 4 @ 73 IC4 131 148 151 140 117 95 75 6C 51@ 45 40 35 32 29 27 24 17 .75 7 8 1 1 13 15 16 18 19 21 24 27 32 38 56 82 11 C 133 146 144 127 106 83 65 54 47 41 36 33 29 27 24 17 1 7 9 11 11 1 2 13 15 16 19 19 22 24 32 47 69 96 122 139 145 127 99 74 60 51 44 39 35 30 28 24 17 1.5 4 5 6 8 8 9 10 10 11 12 13 14 16 19 24 32 46 66 90 124 139 128 97 73 59 50 44 39 32 29 25 18 2 . 2 3 4 5 6 6 7 7 8 9 9 10 12 14 17 21 27 38 63 96 135 129 100 76 61 51 44 35 30 26 19 2 . 5 1 2 2 3 4 4 4 5 6 6 7 7 8 10 11 14 16 20 31 51 91 132 124 93 75 60 51 39 32 27 20 1 2 2 3 3 1.0 0 1 2 2 3 4 4 5 6 7 8 9 10 12 16 23 42 86 123 128 101 77 62 45 35 28 21 @j - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - @d TA/P = 0.3C * * * TC =1 . 5 HR * * * 1A/P = 0.30 61 - - - - - - - - - - -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - P .3 0 0 0 0 a 1 3 7 13 21 33 46 60 83 97 106 97 90 84 76 70 64 59 54 50 45 43 41 39 38 34 25 .10 .9 0 D 0 0 0 1 2 5 10 18 28 40 66 86 98 103 95 88 80 73 66 60 55 51 47 43 41 39 38 35 25 .20 0 0 0 0 0 0 0 1 4 5 14 23 34 60 81 95 101 97 90 81 74 67 61 56 52 47 44 41 40 38 35 25 3 0 0 0 0 0 0 0 0 1 3 6 12 19 41 65 35 98 100 95 85 77 69 62 57 53 48 44 42 40 38 35 25 t7i .40 0 0 0 C) 0 o 0 1 2 5 9 16 36 59 80 94 99 96 87 79 70 63 53 53 49 45 42 40 3S 35 26 .59 0 G 0 0 0 0 0 0 1 2 4 8 13 31 54 75 91 98 97 88 80 71 64 58 54 49 45 42 40 38 35 26 .75 0 .3 0 0 0 0 0 0 1 2 4 13 28 49 69 85 '9 5 95 87 76 67 61 56 51 47 44 40 39 36 26 1 . r) 0 0 0 0 0 0 0 0 0 0 0 0 1 5 13 29 49 6Q 84 95 92 81 71 63 58 53 49 45 41 39 36 27 1 .5 0 0 0 0 a 0 0 0 0 0 0 0 0 1 3 9 20 35 63 84 92 83 72 64 58 54 49 43 40 37 28 2.0 C 0 0 0 0 0 0 0 '1 0 0 0 0 0 0 0 1 3 9 25 5-3 79 90 81 71 63 58 53 45 4 1 38 29 2 . 5 0 0 0 0 0 0 0 0 0 C 0 0 0 C 0 0 0 0 1 6 18 46 79 83 80 70 63 57 49 42 38 31 3.0 0 0 C 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 17 50 79 87 79 70 62 52 45 39 32 - - - - - - - - - - - - - - - - - - *- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - JA/P = 0.50 TC =1 - 5 MR !A/P =. 0.50 - - - - - - - - - - - - - - - - - - +- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - C . 0 0 0 1) a '1 0 0 0 0 1 2 3 3 15 22 29 34 39 44 46 46 46 46 46 46 46 46 46 46 46 37 .10 0 0 0 0 0 0 1) 0 0 0 0 1 2 5 10 17 24 30 35 41 46 46 46 4.6 46 46 46 46 46 46 46 37 .20 0 0 0 0 0 0 0 0 0 0 0 1 1 4 9 15 22 28 34 40 45 46 46 46 46 46 46 46 46 46 46 37 .30 0 r. 0 0 0 0 0 0 0 0) 0 0 1 3 7 13 20 27 33 39 44 46 46 46 46 46 46 46 46 46 46 38 43 0 .3 0 0 C 0 0 0 0 0 0 0 1 3 6 12 18 25 31 38 44 46 46 46 46 46 46 46 46 46 46 38 5 C 0 0 C 0 1) 0 1) 0 0 0 0 0 1 2 5 10 17 23 30 37 43 46 46 46 46 46 46 46 46 46 46 38 .75 0 a 0 0 0 0 0 0 0 0 0 0 0 1 3 7 12 19 25 33 40 45 46 46 46 46 46 46 46 46 46 38 1 0 0 0 G 0 0 0 0 0 0 0 0 0 0 0 1 2 5 10 15 25 33 42 46 46 46 46 46 46 46 46 46 39 1 5 0 0 01 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 7 14 23 34 43 46 46 46 46 46 46 46 46 40 2.0 0 .1 0 0 0 0 0 a 0 0 0 0 0 0 0 0 0 0 1 5 11 22 35 43 46 46 46 46 46 46 46 42 2. 5 0 0 C 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 10 23 36 43 46 46 46 46 46 46 43 3.0 0 C 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 14 27 38 44 46- 46 46 46 46 44 ------------------------------------------------------------------------------------------------------------------------------------ RAINFALL TYPE = I TC = 1 .5 4R SHEET 9 OF 10 Exhibit 5-1, continued: Tabular hydrograph unit discharges (csm/in) for type I rainfall distribution coo TRVL --------------------------------------------------- HYDROGRAPH TIME (HOURS) --------------------------------------------------- T I ME 9.3 9.9 ir, .1 10.3 10.5 10.7 11.0 11.4 11 .8 12.3 13.0 14.0 15.0 16.0 18.0 24.0 (HR) 9.0 9.6 10.0 1 C . 2 10.4 10.6 1C.8 11 .2 11.6 12.0 12.6 13.5 14.5 15.5 17.0 20.0 --------------------------------------------------------- ----------------------------- IA/P = 0.10 * * * TC =2-0 HR * * * IA/P = Q,@10 ---------------------------------------------------------------------- 4------------------------------------------------------------- C . .0 9 11 14 19 21 24 28 33 40 49 59 70 82 106 123 138 138 125 115 97 83 70 59 50 44 39 35 32 29 27 23 16 .10 8 10 13 17 18 20 23 26 31 37 45 54 65 89 110 125 135 130 123 106 90 75 62 53 46 40 36 33 29 27 24 16 .20 8 10 12 16 17 19 22 25 29 34 41 50 60 83 10 121 132 131 125 109 92 77 63 53 46 41 36 33 29 27 24 17 .30 7 9 11 14 15 17 18 21 23 27 32 38 46 66 e9 109 123 131 129 117 1GO 82 66 56 48 42 38 34 30 28 24 17 .(.0 7 8 10 13 1 5 16 18 20 22 Z5 30 35 43 61 23 104 120 131 131 119 103 84 68 57 49 43 38 34 30 28 24 17 .50 6 8 10 13 14 1 5 17 19 21 24 28 33 39 56 78 99 116 127 130 121 JC6 86 69 58 50 44 39 35 30 28 24 17 .75 5 7 8 11 12 13 14 15 16 18 20 23 27 38 53 73 93 111 123 127 118 98 77 63 54 47 41 37 31 28 25 17 1 .0 4 5 7 8 9 10 11 12 13 14 15 17 1 8 24 32 45 63 83 102 122 126 113 89 71 59 51 44 39 32 29 25 18 1 .5 3 4 5 6 7 7 8 8 9 10 10 11 12 15 18 23 32 44 60 88 11 1 123 110 87 70 58 50 44 35 30 26 19 2.0 1 2 3 4 5 5 5 6 6 7 7 8 9 10 12 14 18 23 31 49 74 106 121 107 86 69 58 49 38 32 27 20 2. 5 1 1 2 2 3 3 3 4 4 4 5 5 6 7 8 9 11 13 16 22 35 62 101 118 108 88 71 59 44 35 23 21 171 3.0 0 0 1 1 1 2 2 2 3 3 3 3 4 5 5 6 8 9 10 14 19 34 67 103 116 105 86 70 50 39 29 21 ------------------------------------------------------------------------------------------------------------------------------------- iA/P = 0.3C * * * TC =2.0 HR * * * TA/P = 0.30 -------------- 4--------------------------------------------------------------------------------------------------------------------- P I 1.0 0 0 C 0 0 0 1 3 6 10 16 23 31 49 65 77 84 92 86 80 75 69 63 58 53 49 45 43 40 38 35 26 - 10 0 0 0 0 0 D D 1 2 5 9 13 19 35 53 68 79 85 90 83 ?7 71 64 59 55 50 46 43 40 39 35 26 -0 0 0 0 0 0 0 1 2 4 7 11 24 40 57 71 81 56 0 0 89 89 80 73 66 61 51 47 44 41 39 35 26 3 G 0 0 0 0 0 D 0 0 1 1 3 6 9 20 36 53 68 78 84 88 81 74 67 61 56 52 48 44 41 39 36 26 4(@ C, 0 0 0 0 0 0 0 1 2 5 12 24 40 57 70 80 87 84 76 69 63 58 53 49 45 41 39 36 27 .5.3 0 0 0 0 0 0 0 0 0 '0 1 2 4 10 21 36 53 67 77 87 @ 5 77 69 63 58 54 49 46 41 39 36 27 .7; 0 0 C, 0 C 0 D 0 0 0 0 1 2 6 14 26 41 56 69 82 85 80 72 65 60 55 51 47 42 40 36 27 1 .10 0 0 0 0 C 0 0 0 0 0 0 0 0 1 4 10 20 34 49 68 81 85 77 69 63 58 53 49 43 40 37 28 1 .5 C 0 C 0 0 0 '1 0 0 D 0 0 0 0 1 4 10 19 38 58 78 83 76 68 62 57 53 45 41 37 29 2 r" 0 0 0 0 10 0 0 0 D 0 0 0 0 0 0 0 0 2 4 1 3 29 55 77 82 75 68 62 57 48 43 38 30 00 2 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 6 22 51 75 81 75 68 62 53 45 39 3 Z 3.0 C 0 0 0 0 0 0 13 0 0 0 0 1) 0 0 0 0 0 0 1 6 25 54 75 80 75 68 57 48 40 33 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.50 * * * TC =2.0 HR * * * IA/P = 0.50 ---------- t--------------------------------------------------------------- +----------------------------------------------- +--------- 0.0 0 0 0 0 0 0 0 0 0 0 1 2 4 8 13 18 24 29 36 41 46 46 46 46 46 46 46 46 46 46 38 .10 0 0 0 0 0 0 0 0 0 0 0 1 1 3 7 1 2 17 22 28 35 40 45 46 46 46 46 46 46 46 46 46 38 . 20 0 C r" 0 0 0 0 C 0 0 0 0 1 2 4 8 13 18 24 31 38 44 46 46 46 46 46 46 46 46 46 39 .30 D D 0 0 0 0 0 0 0 0 0 0 1 4 7 12 17 22 30 37 43 45 46 46 46 46 46 46 46 46 39 .40 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 6 11 16 21 29 36 42 45 46 46 46 46 46 46 46 46 39 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 -3 5 9 14 20 28 35 42 45 45 45 45 45 45 45 45 45 39 7 5 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 5 9 13 18. 26 33 41 45 45 45 45 45 45 45 45 45 39 1.0 0 C 0 0 0 0 0 0 0 0 0 0 0 0 1 3 5 9 16 24 13 42 45 45 45 45 45 45 45 45 40 1.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 4 8 15 25 36 43 45 45 45 45 45 45 45 42 2.0 C, 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 6 14 26 37 43 45 45 45 45 45 45 43 2. 5 0 0 .0 0 0 a 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 6 15 27 37 43 45 45 45 45 45 44 3.0 0 C C. C 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 8 19 30 39 44 45 45 45 45 45 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - --- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -*---+- RAINFALL TYPE = I TC = 2.C HR SHEET 10 OF 10 m m I Exhibit 5-IA: Tabular hydrograph unit discharges (csm/in) for type 1A rainfall distribution TRVL --------------------------------------------------- HYDROGRAPH TIME (HOURS) --------------------------------------------------- TIME 7.3 7.9 8.1 8.3 8. 5 8.7 9.0 9.4 9.8 10.3 11.0 12.0 13.0 14.0 16.0 22.0 (MR) 7.0 7.6 8.0 8.2 8.4 8.6 8.8 9.2 9.6 10.0 10.6 11.5 12.5 13.5 15.0 . 18.0 ------------------------------------------------------- ---------------------------------------------------------------------------- IA/P = 0.10 * * * TC =0.1 HR * * * IA/P = 0.10 ------------------------------------------------------------------------------------------------------------------------------------ C.0 28 36 50 143 154 163 140 103 87 76 68 67 65 61 54 49 45 44 44 41 40 39 36 33 32 32 31 30 30 29 26 21 .10 27 32 43 104 130 146 157 .145 117 97 83 73 69 65 59 53 48 45 -45 42 40 39 37 34 33 3.2 32 31 30 29 27 22 .20 26 29 37 59 89 116 136 150 147 127 107 91 79 68 63 57 52 47 45 44 41 39 37 35 33 32 32 31 30 29 27 22 .30 25 28 35 53 77 103 125 142 145 133 116 99 86 71 65 59 53 48 46 44 41 39 38 35 33 32 32 31 30 29 27 22 .40 24 26 31 41 49 68 91 114 132 141 136 122 107 82 70 63 57 52 48 45 43 40 38 36 33 32 32 31 30 29 27 22 .50 24 26 30 39 46 60 81 103 123 135 135 127 114 88 73 65 59 53 49 45 43 40 39 36 33 33 32 31 30 29 27 22 .75 20 24 27 32 35 39 47 60 76 94 111 122 125 114 94 .79 68 61 55 48 45 42 39 37 35 33 32 32 30 30 27 22 1.0 16 20 24 27 28 30 32 36 41 49 62 77 94 118 122 104 86 74 65 55 49 44 41 39 36 34 33 32 31 30 28 23 1.5 12 15 18 22 23 24 25 27 28 30 32 36 42 61 86 107 112 104 91 73 60 50 44 41 38 36 34 33 31 30 28 23 2.0 7 10 12 15 16 18 19 20 21 22 24 25 26 30 36 50 69 90 IC6 103 87 67 52 45 41 39 36 34 32 31 29 24 2.5 4 6 8 11 12 13 14 15 16 17 18 19 21 23 26 30 36 49 66 91 1 C, 1 89 66 51 44 4 1 38 36 33 31 29 25 3.0 2 3 5 7 8 9 10 11 11 12 13 14 16 18 20 23 25 29 36 55 79 98 86 65 - 51 44 41 38 34 32 30 25 ------------------------------------------------------------------------------------------------------------------------------------ - IA/P = 0.30 * * * TC =0.1 MR * * * IA/P = 0.30 ---------------------------------------------------------------------------------------------------------------------------- 0.0 0 0 1 45 65 89 78 64 59 54 54 53 51-50 48 45 44 43 43 43 42 42 41 40 40 40 40 40 39 39 38 33 CD .10 0 0 0 18 36 55 78 78 69 62 57 55 53 51 50 47 44 44 43 43 42 42 41 40 40 40 40 40 39 39 38 34 n .20 0 0 0 13 29 46 67 74 71 65 60 56 54 52 50 48 45 44 43 43 43 42 41 41 40 40 40 40 39 39 38 34 .30 0 0 0 10 22 38 58 69 70 67 62 58 56 52 51 48 46 44 44 43 43 42 41 41 40 40 40 40 39 39 38 34 .40 0 0 0 2 7 17 31 49 62 67 67 64 60 55 52 50 48 45 44 43 43 42 42 41 40 40 40 40 39 39 38 34 .50 0 0 0 1 5 13 25 41 55 63 66 64 61 56 53 51 48 46 44 43 43 42 42 41 40 40 40 40 39 39 38 34 .75 0 a 0 0 0 2 6 13 24 36 47 55 61 61 57 54 51 49 47 44 43 43 42 41 41 40 40 40 40 39 38 34 1.0 0 0 0 0 0 1 3 8 15 25 36 46 53 60 59 55 53 50 48 45 44 43 42 42 41 40 40 40 40 39 38 35 1.5 0 0 0 0 0 0 0 0 1 2 5 9 15 31 47 55 57 56 53 50 46 44 43 42 41 41 40 40 40 39 39 35 2.0. 0 0 0 0 0 0 0 0 0 0 0 0 1 5 15 28 42 51 55 54 51 47 44 43 42 41 41 40 40 39 39 36 0C '9@ 2.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 6 14 26 38 50 54 52 47 44 43 42 41 40 40 40 39 36 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 6 13 29 43 53 51 47 44 43 42 41 40 40 39 37 -------------------------------------- 4--------------------------------------------------------------------------------------------- IA/P = 0.50 TC =0.1 MR IA/P = 0.50 ------------------------------------------------------ 4----------------------------------------------------------------------------- 0.0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 7 12 14 18 21 23 26 30 32 33 37 38 41 42 46 48 53 49 .10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 9 12 15 19 22 25 29 32 32 35 39 41 42 45 48 53 49 .20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 7 11 14 18 22 24 28 32 32 35 39 41 42 45 48 53 49 .30 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 8 12 15 20 23 27 31 31 34 39 40 41 45 48 53 49 .40 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 5 9 13 18 22 25 30 31 33 37 39 41 44 47 53 49 .50 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 6 10 15 20 24 29 31 32 36 39 41 44 47 53 53 .75 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 6 11 16 21 26 30 31 34 38 40 43 46 53 53 1.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 6 11 17 23 28 31 32 35 39 42 45 53 53 1.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 a 0 0 0 2 8 1@ 23 28 31 32 35 40 43 49 52 2.0 0 0 0 0 0 01 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 9 17 23 28 31 32 38 42 48 52 2.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 10 18 24 28 31 36 40 47 52 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 11 18 24 28 33 39 45 52 ------------------------------------------------------------------------------------------------------------------------------------ RAINFALL TYPE = IA TC = 0.1 MR SHEET I OF 10 Exhibit 5-1A, continued: Tabular hydrograph unit discharges (csm/in) for type 1A rainfall distribution TRVL --------------------------------------------------- HYDROGRAPH TIME (HOURS) --------------------------------------------------- TIME 7.3 7.9 8.1 8.3 8.5 8.7 9.0 9.4 9.8 IC.3 11.0 12.0 13.0 14.0 16.0 22.0 (MR) ?.0 7.6 8.0 8.2 8.4 8.6 8.8 9.2 9.6 10.0 10.6 11.5 12.5 13.5 15.0 18.0 ---------------------------------------- --------------------------------------------------------------------------------------------- IA/P = 0.10 *. * * TC =0.2 MR * * * IA/P = 0 10 -------------------------------------------------------------------------------------------------------------------------- ;--------- 0.0 27 34 46 124 143 153 153 127 103 87 76 6a 67 63 57 51 47 45 44 42 40 39 36 33 33 32 32 31 30 29 27 21 .10 27 33 44 108 131 146 1 51 135 113 96 83 73 69 65 59 53 48 45 45 42 40 39 37 33 33 32 32 31 30 29 27 22 .20 26 29 38 67 95 119 137 146 139 122 105 90 79 69 63 57 52 47 45 44 41 39 37 34 33 32 32 31 30 29 27 22 .30 25 27 33 45 60 E3 IC? 127 140 139 128 112 97 76 68 62 56 -50 47 45 42 40 38 35 33 33 32 31 30 29 27 22 .40 24 27 32 43 54 73 ;6 117 132 137 131 118 104 81 70 63 57 52 48 45 43 40 38 36 33 33 32 32 30 29 27 22 .50 23 25 29 37 41 50 65 86 106 124 132 131 123 98 79 69 62 56 51 46 44 41 39 37 34 33 32 32 30 29 27 22 .75 20 24 27 33 36 41 50 63 80 97 112 121 123 Ill 93 78 68 61 55 48 45 42 39 37 34 33 32 32 30 30 27 22 1.0 16 20 24 27 29 31 33 37 43 52 65 81 96 120 120 102 85 73 64 55 49 44 41 39 36 34 33 32 31 30 28 23 1 .5 12 15 19 22 23 24 26 27 28 30 33 37 44 63 88 107 111 102 89 72 60 50 44 41 38 36 34 33 32 so za 23 2.0 7 10 12 16 17 18 19 20 22 23 24 25 27 30 38 52 71 91 105 101 86 66 52 45 41 39 36 34 32 31 29 24 2.5 4 6 9 11 12 13 14 15 16 17 19 20 21 23 26 30 38 50 68 92 IC1 88 65 51 44 41 38 36 33 31 29 25 2 3 5 22 24 3.0 7 7 8 9 10 11 12 13 14 15 17 19 28 33 49 72 97 89 68 53 45 41 39 34 32 30 25 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.30 * * * TC =0.2 MR * * * IIA/P = 0.30 ------------------------------------------------------------------------------------------------------------------------------------ 0.0 1) 0 0 26 45 64 76 74 65 59 55 53 52 51 49 46 44 44 43 43 42 42 41 40 40 40 40 40 39 39 38 33 .10 0 0 0 20 37 55 69 72 67 62 57 54 53 52 50 47 44 44 43 43 42 42 41 40 40 40 40 40 39 39 38 34 .20 0 0 0 5 15 30 47 61 68 68 64 59 56 53 52 49 46 44 44 43 43 42 42 41 4'0 40 40 40 39 39 38 34 .30 0 0 0 4 11 23 39 54 64 66 65 61 58 54 52 50 47 45 44 43 43 42 42 41 40 40 40 40 39 39 38 34 .40 0 0 0 3 8 18 32 47 59 64 64 62 59 55 52 50 48 45 44 43 43 42 42 41 40 40 40 40 40 39 39 34 .50 0 0 0 0 2 614 26 40 52 60 63 62 58 54 52 50 47 45 44 43 42 42 41 40 40 40 40 40 39 38 34 .75 0 0 0 0 1 3 7 14 24 35 45 53 57 59 56 54 51 49 47 44 43 43 42 41 41 40 40 40 40 39 38 34 1.0 0 0 0 0 0 0 1 4 815 25 35 4 4' 56 58 56 54 51 49 46 44 43 42 42 41 40 40 40 40 39 39 35 Z5 (D 1.5 0 0 0 0 0 0 0 0 0 1 2 5 9 23 38 50 55 56 54 51 47 44 43 42 42 41 40 40 40 39 39 35 2.0 0 0 0 0 0 0 0 0 0 0 0 1 1 6 15 27 40 49 54 54 51 47 44 43 42 41 41 40 40 40 39 36 2.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 6 14 25 36 49 53 51 47 44 43 42 41 41 40 40 39 36 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 a 0 1 2 6 13 28 42 52 51 47 44 43 42 41 40 40 39 37 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.50 TC =0.2 MR IA/P = 0.50 ------------------------------------ 0.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 10 13 16 19 23 25 29 32 33 36 39 41 42 46 48 50 49 .10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 6 10 14 17 21 24 28 31 32 35 40 41 42 45 48 50 49 .20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 7 11 15 19 23 26 31 31 34 39 40 41 45 48 50 49 .30 0 0 0 0 0 0 0 a 0 0 0 0 0 0 0 1 4 8 12 17 21 25 30 31 33 37 39 41 44 47 50 50 .40 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 5 9 15 19 23 28 31 32 35 39 41 44 47 50 50 .50 0 0 0 0 0 0 0 0 0- 0 0 0 0 0 0 0 0 3 6 12 17 22 27 31 32 34 39 40 43 46 50 50 .75 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 a 1 4 9 14 20 25 30 31 33 37 39 42 46 50 50 1.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 9 16 22 27 31 32 35 38 42 45 49 50 1.5 0 0 0 (3 0 Q 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 8 17 23 28 31 32 35 40 43 49 50 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 9 17 23 28 31 32 38 42 48 50 2.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 9 16 22 27 30 35 40 46 50 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 9 17 23 27 33 38 45 50 ------------------------------------------------------------------------------------------------------------------------------------ RAINFALL TYPE = IA TC = 0.2 MR SHEET 2 OF 10 m I Exhibit 5-1A, continued: Tabular hydrograpb unit discharges (csm/in) for type 1A rainfall distribution TRVL - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -HYORCGRAPH TIME (HOURS) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - TIME 7.3 7.9 8.1 8.3 8.5 8.7 9.0 9.4 9. 8 10.3 11 .0 12.0 13.0 14.0 16.0 22.0 (HR) 7.0 7.6 8.0 8. 2 8.4 8.6 @.8 9.2 9.6 1C.0 1C.6 11 . 5 12. 5 13. 5 15.0 18.0 ------------------------------------------------------------------------------------------------------------------------------------- IA/P = 0.1C * * * TC =0.3 HR * * * IA/P = 0.10 ------------------------------------------------------------------------------------------------------------------------------------ 0.0 26 31 41 92 120 138 145 144 125 105 90 78 71 66 0 54 49 46 45 43 40 39 37 34 33 32 32 31 30 29 27 22 .10 26 30 39 80 106 128 139 142 131 113 98 65 76 68 62 56 51 47 45 43 41 39 37 34 33 32 32 31 30 29 27 22 .20 25 28 34 51 70 94 117 131 139 133 120 105 92 74 67 60 54 49 46 44 42 40 38 35 33 33 32 31 30 29 27 22 .30 24 26 31 40 47 62 84 106 123 133 133 124 112 87 73 65 59 53 49 45 43 40 39 36 33 33 32 32 30 29 27 22 .40 23 26 30 38 44 56 75 95 114 127 131 127 117 93 ?6 67 60 55 50 46 43 40 39 36 34 33 32 32 30 29 27 22 .50 21 25 28 34 37 42 51 67 86 104 119 127 127 110 88 74 66 59 53 47 45 41 39 37 34 33 32 32 30 30 27 22 .75 19 23 26 31 33 36 42 51 64 80 96 109 119 116 1 C 2 85 73 65 58 50 46 43 40 38 35 33 33 32 31 30 28 23 1.0 15 19 23 26 27 29 31 33 37 44 53 66 80 106 116 1'0 9 93 79 0 58 51 45 41 39 37 34 33 32 31 30 28 23 1 .5 11 14 17 21 22 23 24 26 27 29 31 34 38 53 75 97 109 106 96 78 64 52 45 41 39 36 34 33 32 30 28 24 2.0 6 9 11 14 16 17 18 19 20 21 23 24 25 28 34 44 61 81 97 103 91 71 54 46 42 39 37 34 32 31 29 24 2. 5 4 5 8 10 11 12 13 14 15 16 17 19 20 22 25 28 34 44 58 94 99 92 70 54 46 41 39 36 33 32 29 25 3.0 2 3 5 7 7 8 9 10 11 12 13 14 15 17 19 2 2 24 28 33 49 71 96 89 69 53 45 41 39 34 32 30 25 ------------------------------------------------------------------------------------------------------------------------------------ IAIP = 0.30 TC =0.3 HR IA/P = 0.30 ------------------------------------------------------------------------------------------------------------------------------------ 0.0 0 0 0 13 28 45 63 69 69 65 60 55 53 53 51 48 45 44 43 43 42 42 42 40 40 40 40 40 39 39 38 34 .10 0 0 0 9 21 37 54 64 67 65 62 57 54 53 51 49 46 44 43 43 42 42 42 41 40 40 40 40 40 39 38 34 42 42 41 40 40 40 40 40 39 38 34 .20 0 0 0 7 1 7 30 46 58 64 65 63 59 56 53 52 49 46 44 44 43 42 .30 0 0 0 1 5 13 25 39 52 60 63 63 60 55 53 51 49 46 44 43 43 42 42 41 40 40 40 40 40 39 38 34 .40 0 0 0 1 4 10 20 33 45 55 61 62 61 56 54 52 49 46 45 43 43 42 42 41 40 40 40 40 40 39 38 34 .50 0 0 0 1 3 7 15 27 39 50 57 60 61 57 54 52 50 47 45 44 43 42 42 41 40 40 40 40 40 39 38 34 .75 0 0 0 0 1 3 8 1 5 24 34 43 51 55 58 56 54 52 49 47 44 43 43 42 41 41 40 40 40 40 39 38 34 1.0 0 0 0 0 0 0 0 2 4 9 16 25 34 49 56 57 55 53 50 47 44 43 42 42 41 40 40 40 40 39 39 35 1 .5 0 0 0 0 0 0 0 0 0 1 3 5 10 23 37 49 54 55 54 51 47 44 43 42 42 41 40 40 40 39 39 35 2.0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 10 21 33 44 51 54 52 48 44 43 42 41 41 40 40 40 39 36 .5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 10 19 30 45 53 53 48 44 43 42 41 41 40 40 39 37 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 9 23 37 50 52 47 44 43 42 41 40 40 39 37 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.50 * * * TC .=0.3 HR * * * IA/P = 0.50 ------------------------------------------------------------------------------------------------------------------------------------- 0.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 7 11 14 18 22 24 28 32 32 35 40 41 42 45 48 48 48 .10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 8 12 15 20 23 27 31 31 34 39 40 41 45 48 48 48 .20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 5 9 13 18 21 25 30 31 33 37 39 41 44 47 48 48 .30 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 8 12 17 21 25 30 31 33 37 39 41 44 47 48 48 .40 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 5 9 14 19 23 28 31 32 35 39 41 44 47 48 48 .50 0 0 0 0 0 0 0 0 0 0 0 0 0 0 a 0 0 1 4 10 15 21 26 30 31 33 38 40 43 46 48 48 . 75 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 7 13 19 24 29 31 33 36 39 42 46 48 48 1 .0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 ? 16 22 27 31 32 35 38 42 45 48 48 1 . 5 0 0 0 0 0 0 0 .0 0 0 0 0 0 0 0 0 0 0 0 0 3 8 16 23 27 31 32 35 40 43 48 48 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 8 16 22 27 30 32 38 42 47 48 2 .5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 9 16 22 27 30 35 40 46 48 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 9 17 23 27 33 38 45 48 ------------------------------------------------------------------------------------------------------------------------------------ RAINFALL TYPE = r4 TC = C.3 HR SHEET 3 OF 10 Exhibit 5-1A, continued: Tabular hydrograph unit discharges (csm/in) for type 1A rainfall distribution TRVL --------------------------------------------------- HYORCGRAPK 7IME (HOURS) --------------------------------------------------- TIME 7.3 7.9 8 .1 8.3 8.5 8.7 9.0 9.4 9.8 1G.3 11.0 12.0 13.0 14.0 16 *0 22.0 ( HR) 7.0 7.6 8.0 E . 2 8.4 8.6 8.8 9.2 9.6 10.0 10.6 11.5 12.5 13.5 15.0 18.0 ------------------------------------------------------------------------------------------------------------------------- ---------- IA/F = 0.10 * * * TC =0.4 HR * * * IA/P = 0.10 -------------------------------------------------- +--------------------------------------------------------------------------------- C.0 26 29 37 67 93 117 134 137 136 121 105 91 81 70 64 58 52 48 46 44 41 40 37 34 33 33 32 31 30 29 27 22 .10 25 29 36 60 82 1 C5 124 133 135 126 112 98 87 73 66 59 53 49 46 44 41 40 38 34 33 33 32 31 30 29 27 22 .20 24 27 32 43 55 73 94 1 14 127 132 128 117 1C4 83 71 64 58 52 48 45 43 40 38 35 33 33 32 32 30 29 27 22 .30 24 26 31 41 50 65 85 104 119 128 128 121 110 88 74 66 59 54 49 46 43 40 39 35 34 33 32 32 30 29 27 22 .40 22 25 28 35 39 46 59 76 95 111 122 126 122 104 E5 72 64 58 52 47 44 41 39 37 34 33 32 32 30 29 27 22 .50 20 23 26 31 34 37 43 54 69 86 103 116 123 117 58 82 71 63 56 49 46 42 40 38 34 33 33 32 30 30 27 22 .75 16 20 24 27 29 31 33 37 43 53 65 N 94 116 116 101 86 74 65 56 49 44 41 39 36 34 33 32 31 30 28 23 1 .0 14 18 22 25 26 27 e9 31 34 38 45 54 67 93 111 113 101 87 75 62 53 47 42 40 37 34 33 33 31 30 28 23 1 .5 10 13 16 20 21 22 23 24 26 27 29 31 34 45 64 86 102 107 101 84 69 55 46 42 39 37 34 33 32 30 28 Z4 2.0 6 8 1 1 13 14 16 17 1 8 19 20 21 23 24 27 7-1 39 52 71 88 102 96 76 57 47 42 40 37 35 33 31 29 24 2 .5 3 5 7 9 10 11 12 13 14 15 16 17 18 21 23 26 31 38 51 75 94 98 ?4 57 47 42 39 37 33 32 30 25 '7' 3.0 1 2 4 6 7 7 8 9 10 11 12 13 14 16 18 20 23 26 30 43 64 89 95 72 56 47 42 39 34 33 30 25 ------------------------------------------------------------------------------------------------------------------------------------ IA/F = 0.30 * * * TC =0.4 HR * * * IA/P = 0.30 ------------------------------------------------------------------------------------------------------------------------------------ 0.0 0 0 0 6 15 29 46 60 65 65 63 59 56 53 52 49 47 44 44 43 42 42 42 41 40 40 40 40 40 39 38 34 .10 0 0 0 4 12 23 38 53 61 63 63 60 57 54 513 50 47 45 44 43 42 42 42 41 40 40 40 40 40 39 38 34 20 0 0 0 3 9 19 32 46 56 61 62 61 59 55 53 51 48 45 44 43 43 42 42 41 40 40 40 40 40 39 38 34 30 0 0 0 2 7 15 26 39 50 57 61 61 59 56 53 51 49 46 44 44 43 42 42 41 40 40 40 40 40 39 38 34 CL t-1 .40 0 0 0 0 2 5 11 21 33 44 53 58 60 58 55 53 51 48 45 44 43 42 42 41 40 40 40 40 40 39 38 34 . 50 0 0 C 0 1 4 9 17 28 39 48 55 59 59 56 53 51 49 46 44 43 42 42 41 40 40 40 40 40 39 38 34 .75 0 0 0 0 0 2 4 9 16 25 34 43 49 57 57 55 53 50 48 45 44 43 42 41 41 40 40 40 40 39 39 35 1 .0 a 0 0 0 C 0 1 2 5 10 17 25 34 48 55 56 55 53 50 47 45 43 42 42 41 40 40 40 40 39 39 3 ('D 1 .5 0 0 C 0 0 0 0 0 0 0 1 3 6 16 30 43 51 55 55 52 49 45 43 42 42 41 40 40 40 40 39 36 0 j 0 0 0 0 0 0 0 0 0 0 0 0 2 6 1 5 27 39 47 53 53 49 45 43 42 42 41 40 40 40 39 36 2.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 7 14 25 40 50 52 49 45 43 42 41 41 40 40 39 37 3.0 C 0 C 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 7 18 32 47 52 48 45 43 42 41 40 40 39 37 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.50 * * * TC =0.4 HR * * * IA/P = 0.50 ------------------------------------------------------------------------------------------------------------------------------------ C . 0 0 0 0 0 C 0 0 0 0 0 0 0 0 0 1 5 9 13 16 20 23 27 31 32 34 39 40 42 45 47 47 47 .10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 6 10 13 18 22 26 30 31 33 38 39 41 45 47 47 47 .20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 7 11 16 20 24 29 31 33 36 39 41 44 47 47 47 30 0 0 0 0 C 0 0 0 0 0 0 0 0 C 0 1 4 8 13 18 23 28 31 32 35 39 41 43 47 47 47 40 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 5 11 16 21 26 30 32 34 38 40 43 46 47 , 47 .50 0 0 G 0 C 0 0 0 0 0 0 0 0 0 0 0 0 1 3 8 13 19 25 29 31 33 37 39 42 46 47 47 .75 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 6 11 17 23 28 31 32 35 39 42 45 47 47 1 .0 0 13 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 6 12 20 25 29 31 33 37 41 44 47 47 I . 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 5 13 20 26 30 31 34 40 43 47 47 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 6 14 21 26 30 32 37 41 47 47 2. 5 0 0 0 0 C 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 7 15 21 26 30 34 40 46 47 3.0 0 0 a 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 8 15 . 22 27 32 38 45 47 ---------- ------------------------------------------------------------------------------------------------------------------------- RAINFALL TYPE = IA TC = C.4 HR SHEET 4 OF 10 Exhibit 5-1A, continued: Tabular' hydrograph unit discharges (csm/in) for type 1A rainfall distribution TRVL --------------------------------------------------- MYOROGRAPH TIME (HOURS) --------------------------------------------------- TIME 7.3 7.9 8.1 8.3 8.5 8.7 9. ,0 9.4 9.8 10.3 11.0 12.0 13.0 14.0 16.0 22.0 (HR) 7.0 7.6 8.0 8.2 8.4 8.6 8.8 9.2 9.6 10.0 10.6 11. 5 12. 5 13.5 15.0 18.0 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.10 * * * TC =0.5 HR * * * IA/P = 0.10 ------------------------------------------------------------------------------------------------------------------------------------ 0.0 25 28 34 53 72 94 115 129 130 129 117 104 92 76 68 61 55 50 47 44 42 40 38 34 33 33 32 31 30 29 27 22 .10 24 27 33 49 64 84 IC5 121 127 128 121 109 98 80 70 63 57 51 48 45 42 40 38 34 33 33 32 32 30 29 27 22 .20 23 26 30 39 46 58 75 95 112 122 126 123 114 93 78 69 61 55 50 46 44 41 39 36 34 33 32 32 30 29 27 22 .30 21 24 27 34 37 43 53 68 86 103 116 123 123 108 89 76 67 60 54 48 45 42 39 37 34 33 33 32 30 30 27 22 .40 20 24 27 32 35 40 49 61 78 95 109 118 121 111 93 79 69 62 55 49 45 42 40 37 34 33 33 32 30 30 27 22 .50 18 22 25 29 31 34 38 45 56 70 87 101 113 118 1C6 89 77 67 60 52 47 43 40 38 35 33 33 32 31 30 28 23 .75 15 19 23 26 27 29 31 34 39 45 54 67 aO 104 112 106 93 80 70 59 51 46 41 39 36 34 33 33 31 30 28 23 1.0 13 16 20 24 25 26 27 29 31 34 39 46 56 80 102 110 105 93 81 66 56 48 43 40 38 35 33 33 31 30 28 23 1.5 9 12 15 18 20 21 22 23 24 26 27 29 31 39 55 75 94 104 1 C 3 89 74 58 48 43 40 37 35 33 32 31 29 24 2.0 5 7 10 12 13 14 15 17 18 19 20 21 23 25 29 35 45 62 79 100 100 81 61 49 43 40 38 35 33 31 29 25 el 2.5 3 4 6 8 9 10 11 12 13 14 15 16 17 20 22 25 28 34 45 67 88 96 79 60 49 43 40 37 33 32 30 25 17, 3.0 1 2 3 5 6 7 7 8 9 10 11 12 13 15 17 19 21 24 28 38 56 83 93 77 59 48 43 40 35 33 30 26 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.30 * * * TC =0.5 HR * * * IA/P = 0.30 ------------------------------------------------------------------------------------------------------------------------------------ P 0.0 0 0 0 2 8 18 31 46 57 61 61 61 58 54 53 51 48 45 44 44 43 42 42 41 40 40 40 40 40 39 38 34 Co (D .10 0 0 0 2 6 14 25 39 51 58 60 61 59 55 53 51 49 46 44 44 43 42 42 41 40 40 40 40 40 39 38 34 .20 0 0 0 0 1 4 11 21 @3 45 54 58 60 58 55 53 51 48 46 44 43 42 42 41 40 40 40 40 40 39 38 34 .30 0 0 0 0 1 3 8 16 27 39 49 55 59 59 55 53 51 49 46 44 43 42 42 41 40 40 40 40 40 39 39 34 .40 0 0 0 0 1 2 6 13 23 34 44 51 56 58 56 54 52 49 47 44 43 42 42 41 40 40 40 40 40 39 39 34 .50 0 0 0 0 0 0 2 5 10 18 29 39 47 56 57 55 53 51 49 45 44 43 42 41 41 40 40 40 40 39 39 35 .75 0 0 0 0 0 0 1 2 5 10 17 25 34 48 54 56 55 53 50 47 45 43 42 42 41 40 40 40 40 39 39 35 1.0 0 0 0 0 0 0 0 0 0 1 3 6 11 26 41 51 55 55 54 50 47 44 43 42 41 41 40 40 40 40 39 35 41 40 40 40 40 39 36 1 .5 0 0 0 0 0 0 0 0 0 0 0 0 1 4 11 23 36 47 52 54 52 48 44 43 42 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 7 16 27 38 49 53 51 47 44 42 42 41 40 40 40 39 36 2.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 7 15 30 43 52 50 46 44 42 42 41 40 40 39 37 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 10 23 40 51 50 46 44 42 42 40 40 39 37 -------------------------------------------------------------------------------------------------------- IA/P = 0.50 * * * TC =0.5 HR * * * IA/P 0.50 ------------------------------------------------------------------------------------------------------------------------------------ - 0.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 7 11 14 19 22 26 30 31 34 38 40 41 45 46 46 46 .10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 8 12 17 21 25 29 31 33 37 39 41 44 46 46 46 .20 0 0 0 0 0 a 0 0 0 0 0 0 0 0 0 0 2 5 9 14 19 23 28 31 32 35 39 41 43 46 46 46 .30 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 6 12 17 22 27 31 32 34 38 40 43 46 46 46 .40 0 0 0 0 0 0 0 b 0 0 0 0 0 0 0 0 0 2 5 11 16 21 26 30 32 34 38 40 43 46 46 46 .50 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 8 13 19 25 29 31 33 37 39 42 46 46 46 .75 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 6 11 17 23 28 31 32 35 39 42 45 46 46 1.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 11 18 24 29 31 33 36 41 44 46 4 6* 1 .5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 11 19 24 29 31 33 39 42 46 46 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 a 0 0 0 0 1 5 12 19 25 29 31 37 41 46 46 2.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 6 13 20 25 29 34 39 45 46 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 7 14 20 26 32 37 44 46 ------------------------------------------------------------------------------------------------------------------------------------ RAINFALL TYPE = I A TC = 0.5 HR SHEET 5 OF 10 CAD Exhibit 54A, continued: Tabular hydrograph unit discharges (csm/in) for type 1A rainfall distribution TRVL --------------------------------------------------- HYDROGRAPH TIME (HOURS) --------------------------------------------------- TIME 7.3 7.9 8.1 8.3 8.5 8.7 9.0 9.4 9.8 10.3 11.0 12.0 13.0 14.0 16.0 22.0 (MR) 7.0 7.6 8.0 E.2 8.4 8.6 8.8 9.2 9.6 1C.0 10.6 11.5 12.5 13.5 15.0 18.0 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.10 * * * TC =0.75 HR * * * IA/P = 0.10 ---------------------------------------------------------------------------------------------- 4- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 0.0 22 25 29 38 45 56 71 87 103 114 117 117 111 95 81 72 65 58 53 48 45 41 39 36 33 33 33 32 30 29 27 22 .10 21 25 28 3-6 42 51 64 79 95 108 114 116 113 99 85 74 66 60 54 48 45 42 39 37 34 33 33 32 30 30 27 22 .20 19 23 26 32 35 39 47 58 72 87 101 110 114 109 95 82 72 65 58 51 47 43 40 38 34 33 33 32 31 30 27 23 .30 19 22 26 31 33 37 44 54 66 80 94 104 112 110 98 85 75 67 60 52 47 43 40 38 34 33 33 32 31 30 28 23 .40 17 21 24 28 30 32 36 41 49 61 74 87 99 111 1C6 94 82 73 65 56 49 45 41 39 35 33 33 33 31 30 28 23 .50 16 20 23 27 29 31 34 39 46 56 68 81 93 109 107 97 85 75 67 57 50 45 41 39 36 33 33 33 31 30 28 23 .75 15 18 22 25 27 28 ! 1 34 38 45 54 64 75 95 104 102 93 83 74 62 54 47 42 40 37 34 33 33 31 30 28 23 1.0 1 2 1 5 18 22 23 24 25 27 29 31 34 39 46 65 85 100 103 98 88 ? 4 62 52 45 41 39 35 33 33 32 30 28 23 1 .5 7 10 12 15 1-7 18 19 20 21 22 24 25 26 31 39 53 71 87 99 99 85 68 53 46 41 39 36 34 33 31 29 24 2.0 4 6 8 11 12 13 14 15 16 17 18 19 21 23 26 31 39 51 67 88 95 86 67 53 45 41 38 36 33 32 29 25 2.5 2 3 5 7 8 9 10 1.1 11 1 Z 13 14 16 18 20 23 26 30 38 56 77 93 84 66 52 45 41 38 34 33 30 25 3.0 0 1 2 4 4 5 6 6 7 8 8 9 10 12 14 16 18 21 24 30 42 67 90 84 68 54 46 42 36 33 30 26 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.30 * * * TC =0.?5 HR * * * IA/P = 0.30 ------------------------------------------------------------------------------------------------------------------------------------ P 0.0 0 0 0 0 2 4 10 19 29 39 48 53 56 56 54 53 51 49 46 44 44 42 42 40 40 40 40 40 40 39 39 34 cc .10 0 0 0 0 1 3 8 15 24 34 43 50 54 56 54 53 52 49 47 45 44 42 42 41 40 40 40 40 40 39 39 34- .20 0 0 0 0 0 1 2 6 12 20 30 39 46 54 55 54 53 51 49 46 44 43 42 41 40 40 40 40 40 39 39 35 0 .30 0 0 0 0 0 1 2 5 10 17 25 34 42 52 55 54 53 51 49 46 44 43 42 42 40 40 40 40 40 39 39 35 .40 0 0 0 0 0 0 1 4 8 14 21 30 38 50 55 55 53 52 50 47 45 43 42 42 40 40 40 40 40 39 39 35 .50 0 0 0 0 0 0 1 3 6 11 19 26 34 47 53 54 54 52 50 47 45 43 42 42 40 40 40 40 40 39 39 35 .75 0 0 0 0 0 0 0 1 3 6 10 16 23 37 47 52 53 53 52 49 46 44 42 42 41 40 40 40 40 40 39 35 1.0 0 0. 0 0 0 0 0 0 0 1 2 4 7 17 30 42 50 53 53 51 49 45 43 42 41 40 40 40 40 40 39 36 1 .5 0 0 0 0 0 0 0 0 0 0 0 0 1 4 11 21 33 43 49 52 51 49 45 43 42 41 40 40 40 40 39 36 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 11 20 30 43 50 51 48 45 43 42 41 40 40 40 39 37 00 2. 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 5 10 23 36 48 51 47 44 43 42 41 40 40 39 37 -; . 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 7 17 34 48 50 47 44 43 42 40 40 39 38 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.50 * * * TC =0.75 MR * * * IA/P = 0.50 ------------------------------------------------------------------------------------------------------------------------------------ 0.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 6 10 15 19 23 28 31 32 36 39 41 44 44 44 44 .10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 7 12 17 22 27 30 32 34 38 40 43 44 44 44 .20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 5 10 15 20 25 30 31 33 37 39 43 44 44 44 .30 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 7 12 18 24 29 31 33 36 39 42 44 44 44 .40 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 5 10 16 22 27 30 32 35 38 42 44 44 44 .50 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 7 14 21 26 30 31 34 38 41 44 44 44 .75 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 5 11 19 24 29 31 33 36 41 44 44 44 1.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 8 16 22 27 30 32 35 40 43 44 44 1.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 9 16 23 27 30 32 38 42 44 44 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 10 17 23 28 30 36 40 44 44 2. 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 '0 0 0 0 0 0 0 0 1 4 11 18 23 28 33 39 44 44 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1. 4 10 17 23 30 36 43 44 ------------------------------------------------------------------------------------------------------------------------------------ RAINFALL TYPE = IA TC = 0.75 MR SHEET 6 OF 10 Exhibit 5-1A, continued: Tabular hydrograph unit discharges (esmlin) for type 1A rainfall distribution TRVL - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - HYDROGRAPH TIME (HOURS) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - TIME 7.3 7.9 8 .1 8.3 8.5 8.7 9.0 9.4 9.8 10.3 11.0 12.0 13.0 14.0 16.0 22.0 (4 R) 7.0 7. 6 8.0 8.2 8.4 8.6 8.8 9.2 9.6 1 C . 0 10.6 11.5 12. 5 13.5 15.0 18.0 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.10 * * * TC =1 .0 MR * * * IA/P = 0.10 ---------------------------------------------------------------------------------------------------------------------------------- C.0 19 23 26 33 37 43 52 63 76 88 97 104 IC8 102 91 81 72 65 59 52 48 43 40 38 34 33 33 32 31 30 28 23 .10 19 22 26 32 35 41 48 58 70 82 92 100 105 103 94 83 75 67 61 53 48 44 40 38 35 33 33 32 31 30 28 23 .20 17 21 24 28 30 34 38 45 54 65 76 87 96 104 100 91 81 73 66 57 51 45 41 39 36 33 33 33 31 30 28 23 .30 16 20 23 27 29 32 36 42 50 60 71 81 91 103 1C1 93 84 75 67 58 52 46 42 39 36 34 33 33 31 30 28 23 .40 15 18 22 25 27 29 31 35 40 46 55 65 76 94 1 C 2 99 91 81 73 63 55 48 43 40 37 34 33 33 31 30 28 23 .50 14 18 21 25 26 28 30 33 37 43 51 61 71 90 101 101 93 84 75 64 56 49 43 40 37 34 33 33 31 30 28 23 .75 13 16 19 23 24 25 27 29 32 37 42 49 58 76 91 98 96 89 81 70 60 51 45 41 38 35 34 33 32 30 28 23 1.0 10 13 16 19 20 22 23 24 26 27 30 33 37 50 67 83 94 97 93 81 70 58 48 43 40 37 34 33 32 31 29 24- 1 .5 6 8 10 13 14 15 16 18 19 20 21 22 24 27 33 42 56 71 84 93 89 75 59 49 44 40 37 35 33 31 29 24 lp 2.0 3 5 7 9 1D 11 12 13 14 15 16 17 18 21 23 27 32 41 53 74 88 91 74 59 49 43 40 37 34 32 30 25 2. 5 1 2 4 6 7 7 8 9 10 11 11 12 13 16 18 20 23 26 32 45 64 84 89 72 58 48 43 40 34 33 30 26 3.0 0 1 2 3 3 4 4 6 6 7 8 9 10 12 14 16 5 18 21 26 35 55 81 87 73 59 50 44 37 34 31 26 ------------------------------------------------------------------------------------------------------------------------------------ @d IA/P = 0.3C * * * TC =1 .0 HR * * * IA/P = 0.30 ------------------------------------------------------------------------------------------------------------------------------------ C . 0 0 0 0 0 1 2 5 10 16 23 31 38 44 51 53 52 52 50 48 46 44 43 42 41 40 40 40 40 40 40 39 35 .10 0 0 0 0 0 1 2 4 8 13 20 27 35 46 51 53 52 51 50 47 45 44 42 42 40 40 40 40 40 40 39 35 .20 0 0 0 0 0 0 1 3 6 11 17 24 31 43 50 52 52 51 50 47 45 44 42 42 40 40 40 40 40 40 39 35 .30 0 0 0 0 0 0 1 2 5 9 14 21 28 40 48 52 52 52 50 48 46 44 43 42 40 40 40 40 40 40 39 35 .40 0 0 0 0 0 0 0 1 2 4 7 12 18 31 42 49 52 52 51 49 47 45 43 42 41 40 40 40 40 40 39 35 so 0 0 0 0 0 0 0 1 1 3 6 10 15 28 39 47 51 52 51 49 47 45 43 42 41 40 40 40 40 40 39 35 75 0 0 0 0 0 0 0 0 1 1 3 6 9 19 31 41 47 50 51 50 48 46 43 42 41 40 40 40 40 40 39 36 1.0 0 0 0 0 0 0 0 0 0 0 0 1 2 6 14 25 36 44 49 51 50 47 45 43 42 41 40 40 40 40 39 36 1 .5 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 6 13 23 33 44 49 50 47 44 43 42 41 40 40 40 39 37 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 6 13 25 38 48 50 47 44 43 42 41 40 40 39 37 00 2'. 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 9 19 36 48 49 47 44 43 42 40 40 39 38 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 6 18 37 47 49 46 44 43 41 40 40 38 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.5C * * * TC =1 .0 HR * * * IA/P = 0.50 ------------------------------------------------------------------------------------------------------------------------------------ 0.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 4 7 11 16 21 26 30 32 34 38 40 43 43 43 43 .10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 5 9 14 19 25 29 31 33 37 39 42 43 43 43 .20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 7 11 17 23 28 30 32 36 39 42 43 43 43 .30 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 5 9 15 21 27 30 32 35 38 41 43 43 43 40 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 7 13 20 25 29 31 34 37 41 43 43 43 .50 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 5 11 18 24 28 31 33 36 41 43 43 43 .75 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 8 16 22 27 30 32 35 40 43 43 43 1 .0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 6 13 20 25 29 31 34 39 42 43 43 1.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 7 14 20 25 29 31 37 41 43 43 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 7 14 20 26 29 34 39 43 43 2 .5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .0 0 0 0 0 0 0 0 0 3 8 15 21 26 32 37 43 43 3.0 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 8 14- 20 29 34 42 43 ------------------------------------------------------------------------------------------------------------------------------------ RAINFALL TYPE = IA TC = 1.0 HR SHEET 7 OF 10 Exhibit 5-1A, continued: Tabular hydrograph unit discharges (csm/in) for type 1A rainfall distribution TRVL --------------------------------------------------- HYDRCGRAPH TIME (HOURS) ------------------------------ - - - - - - - - - - TIME 7.3 7.9 8.1 8.3 8.5 8.7 9.0 9.4 9.8 10.3 11.0 12.0 13.0 -14.0 - - - - -1;. 0 22.0 (HR) 7.0 7.6 8.0 8.2 8.4 8.6 8.8 9.2 9.6 10.0 10.6 11.5 12.5 13.5 15.0 18.0 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.10 4* * * TC =1.25 HR * * * IA/P = 0.10 ---------------------------------------------------------------------------------------------- 4--------------- +- - - - - - - - - - - - - - - - - - - - - 0.0 17 21 24 29 33 37 43 52 61 71 81 89 95 100 94 86 78 71 64 57 51 46 42 39 35 34 33 33 31 30 28 23 .10 16 19 23 27 29 31 35 41 48 57 66 76 85 96 99 92 84 76 69 60 54 47 43 40 36 34 34 33 31 30 28 23 .20 15 19 22 26 28 30 33 38 45 53 62 71 80 93 97 93 86 78 71 62 55 48 43 40 37 34 34 33 31 30 28 23 .30 14 17 20 24 25 27 29 32 36 42 49 58 67 84 95 96 91 84 76 66 53 50 44 41 38 35 34 33 31 SO 28 23 .40 13 16 20 23 25 26 28 31 34 39 46- 54 62 80 92 96 93 86 78 68 59 51 45 41 38 35 34 33 31 30 28 23 . 50 12 15 18 21 23 24 25 27 29 33 37 43 50 67 83 93 95 91 84 73 63 54 46 42 39 36 34 33 32 30 28 23 .75 10 13 16 20 21 22 23 25 27 29 32 36 42 55 71 84 93 93 88 78 68 57 49 43 40 37 34 34 32 31 28 24 1 .0 8 10 13 16 17 19 20 21 22 23 25 27 29 37 49 63 78 88 92 88 78 65 53 46 42 39 36 34 33 31 29 24 R 1 . 5 5 7 9 12 13 14 15 16 17 18 19 20 22 25 29 36 47 60 73 87 89 79 64 53 46 42 38 36 33 32 29 25 2.0 2 4 6 8 9 10 10 11 12 13 14 15 16 19 21 24 Z9 36 45 64 80 87 77 63 52 46 41 38 34 32 30 25 2. 5 1 2 3 4 5 6 6 7 8 8 9 10 11 13 15 17 19 22 26 35 49 72 85 78 65 53 46 42 36 33 30 26 3.0 0 1 1 2 3 3 4 4 5 5 6 7 7 9 11 12 14 17 19 23 31 47 73 84 76 63 53 46 38 34 31 26 @j ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.30 * * * TC =1.25 HR IA/P = 0.30 -------------------------------------------------------------- +----------- P 0.0 0 0 0 0 0 1 3 6 10 15 22 28 34 43 48 51 51 51 49 47 45 44 43 42 40 40 40 40 40 40 39 35 cc .10 0 0 0 0 0 0 1 2 5 8 13 19 25 36 45 49 51 50 50 48 46 44 43 42 40 40 40 40 40 40 39 35 CD .20 0 0 0 0 0 0 1 2 4 7 11 16 22 34 43 48 50 50 50 48 46 44 43 42 41 40 40 40 40 40 39 35 0 30 0 0 0 0 0 0 1 1 3 5 9 14 19 31 40 46 49 50 50 48 46 45 43 42 41 40 40 40 40 40 39 35 .40 0 0 0 0 0 0 0 1 2 4 8 12 17 28 .38 45 49 50 50 49 47 45 43 42 41 40 40 40 40 40 39 35 FL .50 0 0 0 0 0 0 0 1 2 4 6 10 14 25 36 43 48 50 50 49 47 45 43 42 41 40 40 40 40 40 39 35 75 0 0 0 0 0 0 0 0 0 1 2 3 6 13 23 33 41 46 49 50 48 46 44 43 42 40 40 40 40 40 39 36 .1.0 0 0 0 0 0 0 0 0 0 0 0 1 2 6 14 23 32 40 46 49 49 47 45 43 42 41 40 40 40 40 39 36 1 .5 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 6 13 21 30 41 47 49 47 45 43 42 41 40 40 40 39 37 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 6 12 23 35 45 48 47 45 43 42 41 40 40 40 37 00 2 .5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 8 18 33 45 48 46' 44 43 42 40 40 40 38 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 6 17 34 45 48 46 44 43 41 40 40 38 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0. 50 * * * TC =1.25 HR * * * IA/P = 0.50 ------------------------------------------------------------------------------------------------------------------------------------ C . 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 5 9 14 19 24 28 31 33 37 39 42 42 42 42 .10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 7 11 17 23 27 30 32 36 38 42 42 4Z 42 .20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 5 9 15 21 26 29 32 35 38 41 42 42 42 .30 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 7 13 19 25 29 31 34 37 41 42 42 42 .40 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 5 11 17 23 28 30 33 36 40 42 42 42 .50 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 8 15 22 26 30 32 35 40 42 42 42 .75 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 7 13 20 25 29 31 34 39 42 42 42 1.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 11 17 23 27 30 33 38 42 42 42 1.5 0 0 0 0 0 0 0 .0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 5 11 18 23 28 30 36 40 42 42 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 6 12 18 24 28 33 39 42 42 2.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 6 13 19 24 31 37 42 42 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 6 12 18 28 33 42 42 -------------------------------------------------------------------------------------------------------------------------------------- m mWINFiftTYPFMIA m m Ina * * lik = 1 tw R * Im .m m = SHE!ftB 01 'N Exhibit 5-1A, continued: Tabular hydrograph unit discharges (csm/in) for type 1A rainfall distribution TRVL --------------------------------------------------- HYDROGRAPH TIME (HOURS) --------------------------------------------------- TIME 7.3 7.9 8.1 8.3 8.5 8.7 9.0 9.4 9.8 10.3 11.0 12.0 13.0 14.0 16.0 22.0 (MR) 7.0 7.6 8.0 8. 2 8.4 8.6 8.8 9.2 9.6 10.0 1C.6 11 . 5 12.5 13.5 15.0 18.0 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.10 * * * TC =1.5 MR * * * IA/P = 0.10 ------------------------------------------------------------------------------------------------------------------------------------ 0.0 15 19 22 27 29 32 37 42 49 57 65 73 80 89 94 89 83 76 70 62 55 49 44 40 37 35 34 33 31 30 28 23 .10 14 17 20 24 26 28 31 35 40 46 53 61 69 82 90 92 87 81 74 65 58 51 45 41 38 35 34 33 31 30 28 23 .20 13 16 20 23 25 27 29 33 37 43 50 57 65 79 88 91 88 82 76 67 59 52 46 42 38 35 34 33 32 30 28 23 .30 12 15 18 22 23 24 26 28 31 35 41 47 54 69 81 89 90 86 81 71 63 54 47 43 39 36 34 34 32 30 28 24 .40 11 14 .18 21 22 24 25 27 30 34 38 44 51 65 78 87 90 87 82 73 64 55 48 43 40 36 34 34 32 30 28 24 .50 10 13 16 19 20 22 23 24 26 29 32 36 41 54 69 81 88 89 86 77 68 58 50 44 41 37 35 34 32 31 29 24 .75 9 11 14 18 19 20 21 22 24 26 28 31 35 46 58 71 82 88 88 81 73 62 52 46 42 38 35 34 32 31 29 24 1.0 7 9 11 14 15 16 18 19 20 21 22 24 26 32 40 52 65 76 84 87 81 70 58 49 44 40 37 35 33 31 29 24 1 .5 4 6 8 10 11 12 13 14 15 f6 17 18 19 22 26 31 39 50 62 77 85 81 69 57 49 44 40 37 34 32 30 25 2.0 2 3 5 7 7 8 9 10 11 12 12 13 14 17 19 22 25 31 38 53 69 83 80 68 56 48 43 40 35 33 30 25 2.5 1 1 2 3 4 5 5 6 6 7 8 9 9 11 13 15 17 20 23 30 41 61 82 82 69 58 49 44 37 34 31 26 3.0 0 0 1 2 2 2 3 3 4 4 5 5 6 8 9 11 13 15 17 21 27 40 63 80 78 68 57 49 40 35 31 27 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.30 * * * TC -1.5 MR * * * IA/P = 0.30 C!n ------------------------------------------------------------------------------------------------------------------------------------ 0.0 0 0 0 0 0 1 2 4 6 10 14 19 24 34 41 46 48 49 48 47 46 44 43 42 41 40 40 40 40 40 39 35 CD .10 0 0 0 0 0 0 1 1 3 5 8 12 17 27 36 42 46 48 49 48 46 45 43 42 41 40 40 40 40 40 39 36 .20 0 0 0 0 0 0 0 1 2, 4 7 10 15 24 33 41 45 48 49 48 47 45 43 43 41 40 40 40 40 40 39 36 .30 0 0 0 0 0 0 0 1 2 3 6 9 13 22 31 39 44 47 48 48 47 45 44 43 41 40 40 40 40 40 39 36 .40 0 0 0 0 0 0 0 0 1 1 3 5 7 15 24 33 40 45 47 48 47 46 44 43 42 40 40 40 40 40 39 36 .50 0 0 0 0 0 0 0 0 0 1 2 4 6 13 22 31 38 44 47 48 48 46 44 43 42 40 40 40 40 40 39 36 .75 0 0 0 0 0 0 a 0 0 1 1 2 4 9 16 24 33 39 44 47 48 47 45 43 42 41 40 40 40 40 39 36 1.0 0 01 0 0 0 0 0 0 0 0 0 0 1 2 6 12 20 29 36 44 47 48 46 44 43 42 40 40 40 40 40 36 CD 1.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 6 12 19 30 39 46 47 46 44 43 42 40 40 40 40 37 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 4 8 17 28 40 46 47 45 44 42 41 40 40 40 37 00 2.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 6 13 26 40 47 47 45 43 42 40 40 40 38 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 12 28 41 46 46 45 43 41 40 40 38 ----------------------------------------- ------------------------------------------------------------------------------------------ IA/P = 0.50 * * * TC =1.5 MR * * * IA/P = 0.50 ---------------------------------------------------------------------------------------------------------------------------------- 0.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 3 7 11 16 22 27 30 32 35 38 42 42 42 42 .10 0 0 0 0 0 0 0 0 a 0 0 0 0 a 0 0 0 1 1 4 7 13 19 24 28 31 34 37 41 42 42 42 .20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 7 12 19 24 28 31 33 36 41 42 42 42 .30 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 6 12 18 23 28 30 33 36 40 42 42 42 .40 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 6 11 17 23 27 30 33 36 40 42 42 42 .50 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 5 10 17 22 27 30 32 36 40. 41 41 41 .75 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 5 10 16 22 26 29 32 35 40 41 41 41 1.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 5 11 17 23 27 30 33 38 41 41 41 1.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 5 12 18 23 27 30 36 40 41 41 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 6 12 18 24 28 33 39 41 41 2.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 7 13 19 24 31 36 41 4:1 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 7 13 19 28 34 41 41 ------------------------------------------------------------------------------------------------------------------------------------ RAINFALL TYPE = IA TC = 1.5 MR SHEET 9 OF 10 tQ Exhibit 5-1A, continued: Tabular hydrograph unit discharges (csm/in) for type 1A rainfall distribution 00 TRYL ---------------------------------------------------- HYDROGRAPH TIME (HOURS) : -------------------------------------------------- TI"t 7.3/ 7.9 8.1 8.3 8.5 8.7 9.0 9.4 9.8 10.3 11.0 12.0 13.0 14.0 16.0 22.0 (MR) 7.0 7.6 8.0 8.2 .8.4 8.6 8.8 9.2 9.6 10.0 10.6 11.5 12.5 13.5 15.0 18.0 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.10 * * * TC =2.0 MR * * * IA/P 0.10 --------------------------------------------------------------------------------------------- ------ 0.0 12' 15 18 22 24 Z6 28 32 36 41 46 52 58 68 76 80 84 79 76 68 62 55 48 44 40 37 35 34 32 31 28 24 .10 11 13 16 20 21 23 25 27 30 34 38 43 49 60 70 77 83' 83 78 72 65 57 50 45 41 38 36 34 32 31 29 24 .20 9 12 15 18 19 21 22 24 26 29 32 36 41 52 63 72 78 82 81 75 68 60 52 46 42 39 36 35 32 31 29 24 .30 9 12 14 18 19 20 21 23 25 28 31 34 39 49 60 70 J7 81 81 76 70 61 53 47 43 39 36 35 33 31 29 24 .40 9 11 14 17 18 19 21 22 24 26 29 33 37 47 57 67 75 80 81 77 71 62 53 47 43 39 37 35 13 31 29 24 .50 7 10 12 15 17 18 19 20 Z1 23 25 218 31 39 49 60 69 76 81 79 74 65 56 49 44 40 37 35 33 31 29 24 .75 6 9 -11 14 15 16 17 18 20 21 23 25 27 34 -42 52. 62 70 76 79 76 69 59 51 46 41 38 36 33 31 29 24 1.0 5 6 9 11 12 13 14 15 16 17 18 20 21 25 30 38 47 57 66 76 79 75 64 55 49 44 40 37 34 32 29 25 1.5 3 4 6 8 8 9 10 11 12 13 14 15 16 18 21 24 30 37 45 59 71 78 73 63 55 48 43 40 35 33 30 25 2.0 1 2 3 4 5 5 6 7 7 8 9 10 10 12 14. 16 19 22 26 36 48 65 77 73 64 56 49 44 37 34 31 26 2.5 0 1 1 2 3 3 4 4 5 5 6 6 7 8 10 12 14 16 18 23 31 46 66 76 72 63 55 48 40 35 31 27 3.0 0 0 1 1 1 2 2 2 3 3 3 4 4 5 7 8 10 11 13 17 21 30 49 67 75 71 63 54 43 37 32 27 ---------------------------------------------------- IA/P = 0-30 TC -2.0 HR IA/P 0.30 ------------------------------------------------------------------------------------------------------------------------------------ 0.0 0 0 0 0 0 0 1 2 3 5 7 10 13 20 27 34 39 42 744 47 45 45 44 43 42 40 40 40 40 40 39 36 .10 0 0 0 0 0 0 0 1 1 2 4 6 8 15 22 29 35 40 43 45 46 45 44 43 42 41 40 40 40 40 40 36 .20 0 0 0 0 0 0 0 0 1 1 2 3 5 10 17 ?4 31 36 41 44 46 45 44 43 42 41 40 40 40 40 40 36 .30 0 0 0 0 0 0 0 0 0 1 2 3 4 9 15 22 29 35 39 44 46 45 44 43 42 41 40 40 40 40 40 36 .40 0 0 0 0 0 0 0 0 0 1 1 2 4 8 14 20 27 33 38 43 46 46 44 43 42 41 40 40 40 40 40 36 .50 0 0 0 0 0 0 0 0 0 0 1 1 2 5 9 15 22 29 35 41 44 45 45 44 43 42 40 40 40 40 40 36 .75 0 0 0 0 0 0 0 0 0 0 0 1 1 3 6 11 17 24 30 38 42 45 45 44 43 42 41 40 40 40 40 37 1.0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 5 9 14 21 30 38 43 45 44 44 43 41 40 40 40 40 37 1.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 a 1 2 4 8 16 25 36 43 45 44 43 42 41 40 40 40 38 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 6 12 24 36 43 45 44 43 42 40 40 40 38 00 '9@ 2.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 12 25 37 43 45 44 43 41 40 40 38 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 13 26 37 43 44 44 42 40 40 39 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.50 * * * TC =2.0 MR * * * IA/P = 0.50 ------------------------------------------------------------------------------------------------------------------------------------ 0.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 4 7 12 18 23 27 30 33 36 40 40 40 40 .10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 5 10 16 21 26 29 32 35 40 40 40 40 .20 0 0 0 0 0 0 a 0 0 0 0 0 0 0 0 0 a a 1 2 4 8 14 20 25 28 31 34 39 40 40 40 .30 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 6 12 18 23 27 30 33 38 40 40 40 .40 0 0 0 0 0 0 0 .0 0 0 0 0 0 0 0 0 0 0 0 1 2 5 11 16 22 26 29 .32 38 40 40 40 .50 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 9 15 20 25 28 31 37 40 40 40 .75 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 7 13 19 24 27 30 36 40 40 40 1.0 0 0. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 8 14 20 24 28 34 39 40 40 1.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 5 10 16 21 25 32 37 40 40 2.o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 5 11 16 21 29 35 40 40 2.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 6 11 17 26 32 40 40 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 6 11 21 29 39 40 ------------------------------ ------------------------------------------------------------------------------------------------ 4---+- M NW11FtWYPE &JA M M NjW * JW 2. 1W& * WE M M111VW IF" I Exhibit 5-11: Tabular hydrograph unit discharges (csm/in) for type 11 rainfall distribution TRVL - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -HYDRCGRAPH TIME (HOURS) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - T 1 M E: 11 .3 11 . 9 12 .1 12.3 12 . 5 12.7 13 . G 13.4 13. 8 14.3 15.0 16.0 17.0 1.8.0 2C.0 26.0 ( H R )1 1 . 0 11.6 12.0 12 . 2 12.4 12.6 12.8 13.2 13.6 14.0 14.6 15. 5 16. 5 17.5 19.0 22 .0 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.1C * * * TC =0.1 HR * * * IA/P = 0 10 ---------------------- *--------------------------------------------------------------------------------------- 4----------- ;--------- '1 2 @ 34 53 334 6471C10 623 217 147 123 1C4 86 76 66 57 51 46 42 38 34 32 29 26 23 21 20 19 18 15 13 1 2 0 10 21 29 43 134 267 520 847 701 778 224 157 122 98 75 64 56 50 45 41 36 33 30 27 24 21 20 19 13 16 13 1 2 0 20 16 25 3 5 61 110 21 5 418 704 7G2 486 312 200 151 94 73 62 54 49 44 38 34 31 28 25 22 21 19 1 8 16 14 1 2 0 30 17 23 33 56 92 174 337 582 662 545 359 269 190 109 79 65 56 50 45 39 35 32 29 25 22 21 20 18 16 14 1 2 0 4 0 15 20 28 41 5 1 73 142 272 473 601 563 447 328 172 104 76 63 55 49 42 37 33 29 26 23 21 20 19 17 14 1 2 0 50 14 19 26 39 47 oS 117 220 392 531 553 482 380 2C9 121 84 67 57 51 43 38 33 30 27 23 21 20 19 17 14 12 0 75 12 15 21 29 33 35 49 73 126 224 343 432 464 385 252 156 1C3 76 62 50 43 36 31 28 25 22 21 19 .17 15 1 2 0 .0 12 1 5 21 23 26 29 33 40 55 86 148 238 406 434 317 205 130 89 62 50 41 34 30 27 24 22 20 18 16 1 2 0 1 5 7 10 14 1 5 16 18 20 22 25 29 34 45 101 220 339 373 320 234 131 80 53 40 34 30 27 24 21 19 17 1 2 2 6 7 9 9 10 11 12 13 1 5 16 18 20 25 37 72 150 252 336 312 216 109 58 42 34 30 27 24 20 18 1 3 8 2 5 3 4 5 6 7 7 8 8 9 10 11 12 13 16 19 25 39 75 142 262 303 229 108 58 41 34 30 27 22 19 14 11 171 31.0 1 2 3 4 4 5 5 6 6 7 7 8 8 10 12 14 17 22 31 76 169 288 23-6 122 64 43 35 30 24 20 16 11 ---------------------- +------------------------------------------------------------------------------------------------------------- 0.3C TC =0.1 HR IA/P = 0.30 48 31 30 28 27 24 20 19 -.0 0 0 G 154 568 936 524 217 172 149 126 107 97 86 76 69 63 58 53 46 42 38 34 0 .110 0 0 0 19 109 415 762 603 346 230 176 143 119 96 84 74 68 62 57 50 47 44 40 35 32 30 29 27 24 21 19 0 3 0 0 0 13 77 3C2 609 605 432 297 217 167 115 94 81 73 66 60 53 48 45 41 37 33 31 29 2@ 25 21 19 0 t@ .30 0 0 12 0 9 54 219 479 563 476 357 263 199 129 99 85 75 68 62 54 49 45 41 37 33 31 29 23 25 21 19 0 CL .40 0 0 C 0 0 6 38 159 372 500 484 399 3C9 183 123 96 82 73 66 58 51 46 42 33 34 31 30 28 25 22 19 0 5-3 a 0 G C 0 4 27 115 287 429 465 421 346 213 138 103 86 76 68 59 52 47 43 39 34 32 30 29 25 22 19 0 7; 0 0 0 0 0 0 1 10 46 132 246 333 381 341 243 165 119 94 80 67 58 50 45 41 37 33 31 29 26 23 19 0 0 0 0 0 0 0 0 1 4 22 69 149 241 357 331 246 170 122 96 76 64 54 47 42 38 34 32 30 27 24 19 0 CD 0 0 1.5 0 0 0 0 0 0 0 0 1 4 41 142 258 310 285 224 142 97 71 55 47 43 39 35 32 29 25 20 4 7 .0 0 0 0 0 0 0 0 0 0 a 0 0 0 1 10 49 130 221 279 255 182 108 70 55 47 42 38 34 30 27 20 11 00 - -2 . 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 14 52 119 224 256 193 107 70 55 47 42 38 32 28 22 17 3. D 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 9 52 141 240 199 117 74 56 48 43 35 30 24 18 ------------------------------------------------------------------------------------------------------------------------------------ 74/p = 0.5C * * * TC =0.1 HR * * * IA/P = 0.50 ------------------------------ 4----------------------------------------------------------------------------------------------------- 539 196 171 154 134 117 1C8 99 89 83 77 72 61 59 56 51 46 43 42 40 38 34 30 28 0 .0 0 0 0 0 7' 3?7 67 10 0 0 0 0 47 375 3?6 256 199 169 146 126 114 102 92 55 79 73 68 62 59 56 52 47 43 42 40 38 34 30 28 0 2C 10 C 0 0 0 31 2tO 3 3 F 283 227 189 160 138 112 9Q 90 83 77 72 64 60 57 53 48 44 42 41 39 35 30 29 0 -0 9 9 0 0 0 0 2 1180 285 284 246 208 176 131 110 97 88 82 76 68 62 59 54 50 45 43 41 39 36 31 28 0 1 .40 0 0 0 0 0 0 14125 232 266 253 223 192 142 115 100 91 83 77 69 63 59 55 50 45 43 41 40 36 31 28 0 50 1) 13 0 0 0 0 9 86 183 239 248 231 205 154 122 104 93 85 79 71 64 59 55 51 46 43 41 40 36 32 28 0 75 C, 0 0 0 0 0 3 31 87 147 190 211 213 184 147 121 103 92 84 75 67 61 57 52 47 44 42 40 37 32 28 0 1.0 13 0 0 0 0 0 0 0 1 13 45 92 141 205 197 165 134 112 98 84 75 6 5 55 50 46 43 41 38 34 28 0 1. 5 0 0 C 0 0 0 0 0 0 0 0 ? 9 51 118 170 183 167 143 111 92 77 65 59 54 50 45 43 39 35 28 2 2. C' C 0 0 0 1 0 0 0 0 0 0 0 0 2 15 51 103 148 168 156 127 96 76 65 58 54 49 45 41 37 29 12 2. 5 0 0 0 C, 0 0 0 0 0 0 0 0 0 0 1 9 31 69 131 159 140 101 78 66 59 54 50 43 39 31 24 1.9 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 11 46 101 151 134 99 Z7 65 59 54 45 41 33 26 --------------------- ----------------------------------------------------------------------------------------------------- 4- - - - - - - - - @AINFALL TYPE = II TC = 0.1 HR SHEET 1 OF 10 60 Ekhibit 5-11, continued: Tabular hydrograph unit discharges (csm/in) for type 11 rainfall distribution TRVL --------------------------------------------------- HYDRCGRAPH TIME (HOURS) --------------------------------------------------- TIME 11 .3 11 .9 12.1 12.3 12.5 12.7 13.0 13.4 13.8 14.3 15.0 16.0 17.0 18.0 20.0 26.0 (HR) I 1 .0 11 .6 12.0 12.2 12.4 12.6 12.8 13.2 13.6 14.0 14.6 15.5 16.5 17.5 19.0 22.0 ----------------------------------------------------------------------------------------------------------------------------- IA/P = 0.10 * * * TC =0.2 HR * * * IA/P = 0.10 ------------------------------------------------------------------------------------------------------------------------------------ 0.0 23 31 47 209 403 739 8CO 481 250 166 128 102 86 70 61 54 49 44 40 35 33 30 27 24, 21 20 19 18 16 13 12 0 .10 19 26 39 86 168 325 601 733 565 355 229 161 122 83 69 59 53 47 43 37 34 31 28 25 22 21 19 18 16 14 12 0 .20 17 23 32 49 74 136 262 488 652 594 435 298 207 115 81 67 58 51 46 40 35 32 29 26 23 21 20 19 16 14 12 0 .30 16 22 30 46 64 112 212 396 566 585 485 360 258 139 90 71 60 53 48 41 36 32 29 26 23 21 20 19 16 14 12 0 .40 14 19 25 37 43 57 94 173 322 485 551 507 409 227 129 87 68 58 52 44 38 33 30 2 7 24 21 20 19 17 14 12 0 .50 13 1 8 24 35 40 52 80 142 262 410 504 506 441 269 153 98 73 61 53 45 39 34 30 27 24 22 20 19 17 15 12 0 . 75 10 1 3 1 7 23 26 30 34 40 55 86 150 247 349 438 360 240 151 101 ?5 57 47 39 33 29 26 23 21 20 18 15 12 0 1.0 9 11 1 4 19 21 24 26 30 35 44 62 101 167 337 413 353 245 157 104 68 53 42 35 31 28 24 22 20 18 16 12 0 1 . 41 6 8 1 0 13 14 15 17 19 21 23 26 30 37 73 166 288 356 337 264 154 91 57 42 35 30 27 24 .22 19 17 13 3 2. 0 4 5 7 8 9 10 10 11 12 14 15 16 18 23 31 55 114 206 291 324 239 125 63 44 35 31 28 24 20 18 14 9 2- 5 3 4 5 6 6 7 7 8 9 9 10 11 12 15 18 22 32 58 111 227 298 246 122 63 43 35 31 27 22 19 15 11 .0 1 2 3 4 4 4 5 5 6 6 7 7 a 9 11 13 16 19 Z7 59 119 280 248 137 70 46 36 31 25 21 16 11 ---------------------------------------------- ---------------------------------------------- ----------- 7 ---------------------------- IA/P = Q.3C i * * TC =0.2 HR * * * IA/P 0.30 ------------------------------------------------------------------------------------------------------------------ 7 - - - - - - - - 0.0 0 0 0 39 180 545 697 497 276 198 158 130 110 93 81 73 67 61 56 49 46 43 39 35 32 30 29 27 24 21 19 0 Co CD .10 0 0 0 2 27 129 4C7 600 532 361 252 190 150 108 90 79 71 65 59 52 48 44 41 36 32 31 29 28 25 21 19 0 <-@ .21) 0 0 G 2 19 92 302 501 521 415 306 228 176 119 95 82 73 67 61 53 48 45 41 37 33 31 29 28 25 21 19 0 0 .30 0 0 IQ 0 1 1 3 66 223 408 484 438 350 269 163 114 93 80 72 65 57 51 46 42 38 34 31 30 28 25 22 19 0 @21 .40 0 C a 0 1 9 47 164 327 431 436 379 306 189 127 98 83 74 67 58 52 47 43 738 34 31 30 28 25 22 19 0 .50 0 0 0 0 0 0 6 3 3 120 258 374 415 391 271 173 121 95 81 72 62 55 48 44 40 35 32 30 29 26 22 19 0 .75 0 0 C C. a 0 2 13 50 126 221 302 348 323 240 167 121 96 81 68 59 50 45 41 37 33 31 29 26 23 19 0 1 .0 c) 0 0 0 0 0 0 0 1 6 24 69 139 285 331 280 204 145 109 82 68 56 48 43 39 35 32 30 27 24 19 0 (D k- 1 . 5 0 0 0 0 0 0 0 0 0 0 0 0 1 16 79 186 271 288 247 165 110 76 58 49 44 40 35 32 29 26 20 5 10 0 0 0 0 0 a 0 0 0 0 0 0 0 0 0 3 24 80 163 235 262 202 123 76 58 49 43 39 35 30 27 21 13 00 2. 5 0 0 0 0 0 0 0 0 0 0 0 0 0 '0 0 1 6 28 77 179 242 207 120 75 57 48 43 39 32 29 22 17 ! . 0 0 0 0 0 Q P, 0 0 0 0 0 0 0 0 0 0 0 0 4 30 101 207 227 130 80 59 49 44 35 30 24 18 ------------------- --------------------------------------------------------------------------------------------------------------- 14/P @ 0. 50 * * * TC =0.2 HR. * * * IA/P = 0.50 ------------------------------------------------------------------------------------------------------------------------------- 4:---,,- .1 98 371 322 221 182 137 120 104 94 36 80 74 69 62 60 57 52 47 44 42 40 39 35 30 25 0 1.0 0 0 0 0 7 158 .10 0 0 0 4 67 270 305 249 204 174 149 130 108 97 88 82 76 71 64 60 57 53 48 44 42 41 39 35 3 Q. 28 0 .20 10 C 0 0 b 3 45 195 268 255 221 189 163 125 106 95 87 80 75 67 62 58 54 49 45 43 41 39 35 31 28 0 . 30 0 0 0 0 0 2 31 140 226 245 229 203 176 134 111 98 89 82 76 68 62 59 55 50 45 43 41 39 36 31 28 0 .40 0 0 0 0 0 1 21 101 184 225 228 211 183 144 117 101 91 84 78 69 63 59 55 50 45 43 41 40 36 31 28 0 . 50 0 0 0 0 0 0 1 14 72 146 199 218 213 175 137 113 99 89 82 73 66 60 56 52 47 43 42 40 36 32 .28 C .75 0 0 0 ri 0 0 0 5 28 71 121 162 186 193 161 133 112 98 88 78 70 62 57 53 48 44 42 41 37 33 28 0 1 .0 0 C. C. 0 0 0 0 0 0 2 13, 38 77 154 1@6 174 147 122 1 C 5 89 78 68 60 56 51 46 43 42 33 34 28 0 1 .5 0 0 .3 0 0 0 0 0 0 0 0 0 2 22 71 129 163 168 150 120 98 80 67 60 55 51 46 43 40 36 28 4 2.C 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 25 65 112 146 157 134 103 79 67 60 55 50 46 41 38 29 14 2 .5 0 0 C. 0 C 0 0 0 0 0 0 0 0 0 0 1 8 26 60 117 148 136 101 79 66 59 54 50 43 39 31 24 3.0 0 c) 13 0 13 G 0 0 0 0 a 0 0 G (3 0 2 9 4Z 913 142 130 99 78 66 59 54 45 41 33 26 ------------------------------------------------------------------------------------------------------------------------------------ M 1 N' Fiiiiiiiiiiiiiii@ Y P 6iiiiiiiiiiiiiii@I= M * -M C-M - M M M M SHEM OFM Will Exhibit 5-11, continued: Tabular hydrograph unit discharges (csm/in) for type 11 rainfall distribution. TRVL - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --- - - - - - - - - - - - - - - - - -HYCROGRAPH TIME (HOURS) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -7-- TIME 11.3 11.9 12.1 12.3 12.5 12.7 13.0 13.4 13.8 14.3 15.0 16.0 17.0 18.0 20.0 26.0 (HR)l 1 .0 11.6 12.0 12.2 12.4 12 6 12. 8 13.2 13.6 14.0 14.6 15. 5 16.5 17.5 19.0 22.0 ------------------------ ---------------------- ;------------------------------------------------------------------------------------- IA/P = 0.10 * * * TC =0.3 HR * * * 1A/P = 0.10 ------------------------------------------------------------------------------------------------------------------------------------ 0.0 20 28 41 118 235 447 676 676 459 283 196 146 114 80 . 66 57 51 46 42 37 33 31 28 24 22 20 19 18 16 13 12 0 .10 19 26 39 99 189 361 571 641 520 362 251 191 136 89 70 60 53 48 43 37 34 31 28 25 22 21 19 18 16 14 12 0 .20 17 23 32 53 83 154 292 478 587 542 422 308 223 127 86 68 58 52 46 40 35 32 29 26 23 21 20 19 16 14 12 0 .30 16 22 30 49 72 127 237 398 524 536 460 359 268 151 97 73 61 53 48 41 36 32 29 26 23 21 20 19 16 1 4 12 0 .40 14 19 25 37 45 63 1C5 193 330 459 510 477 390 237 139 92 70 59 52 44 38 34 30 27 24 21 20 19 17 14 12 0 .50 13 18 24 35 42 56 89 158 272 397 472 475 424 274 163 104 76 62 54 46 39 34 30 27 24 22 20 19 17 1 5 12 0 .75 11 14 19 26 30 34 42 59 95 160 250 339 417 398 299 196 1218 89 69 54 45 37 32 29 26 23 21 20 17 15 12- 0 1 .0 9 11 14 19 21 24 27 30 36 46 68 109 174 328 396 346 248 163 109 70 54 43 35 31 29 24 22 20 13 16 12 0 1 .5 6 8 10 13 14 15 17 19 21 23 26 31 38 77 169 282 347 330 264 158 94 58 42 35 31 27 24 22 19 1 7 13 3 2.0 4 5 7 8 9 10 10 11 12 14 15 16 18 23 32 57 116 205 285 317 239 128 t4 44 36 31 28 25 20 18 14 9 2.5 2 4 5 6 6 7 7 8 9 9 10 11 12 15 18 23 33 60 113 223 293 245 125 65 44 35 31 27 22 19 15 11 3.0 1 2 3 4 4 4 5 5 6 6 7 7 8 9 11 13 16 20 27 61 133 275 246 139 72 46 36 31 25 21 16 11 @j ------------------------------------------------------------------------------------------------------------------------------------ @d IA/P = 0.30 * * * TC =0.3 HR * * * IA/P = 0.30 61 ------------------------------------------------------------------------------------------------------------------------------------ P 0.0 0 0 0 11 64 251 525 574 454 303 221 173 140 104 88 77 70 64 58 51 47 44 40 36 32 31 29 28 24 21 19 0 Co .10 0 0 0 a 7 45 183 411 520 476 360 268 205 133 101 85 76 69 62 55 49 45 41 37 33 31 30 28 25 21 19 0 .20 0 0 0 0 5 32 132 318 452 468 396 310 240 151 109 90 78 70 64 56 50 46 42 38 33 31 30 28 25 22 19 0 .30 0 0 0 0 0 322 96 244 383 440 411 344 217 142 105 87 76 69 60 53 47 43 39 35 32 30 29 26 22 19 0 .40 0 0 0 0 0 216 69 186 317 399 407 365 246 160 115 92 79 71 61 54 48 43 39 35 32 30 29 26 22 19 0 .50 0 0 0 0 0 0 2 11 50 -140 258 352 389 327 223 149 110 89 77 66 57 50 45 41 36 33 31 29 26 23 19 0 .75 0 0 0 0 0 0 1 4 20 63 135 219 290 335 281 205 146 110 89 72 62 52 46 42 38 34 31 30 27 23 19 0 1.0 0 0 0 0 0 0 0 0 0 2 9 32 78 216 320 306 243 176 128 90 72 59 49 44 40 36 33 31 28 24 19 1 1. 5 0 0 0 0 0 0 0 0 0 0 0 0 2 20 84 185 264 281 246 168 112 77 58 49 44 40 36 32 29 26 20 5 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 12 50 121 200 257 224 141 83 61 50 44 40 36 31 28 21 14 00 2.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 16 51 145 239 223 137 82 60 50 44 40 33 29 22 17 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 19 74 184 224 146 89 63 51 45 36 31 24 18 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.50 * * * TC =0.3 HR * * * IA/P = 0.50 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -7- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 0.0 0 0 0 0 1 25 151 299 277 219 187 162 141 113 100 90 84 73 72 65 61 58 53 48 44 42 41 39 35 31 28 0 .10 0 0 0 0 1 17 106 235 263 234 202 175 152 120 104 93 85 79 73 66 61 58 54 49 44 42 41 39 35 711 28 0 .20 0 0 0 0 0 012 75 182 236 234 213 188 144 116 101 91 84 78 70 63 59 55 50 45 43 41 40 36 31 28 0 .30 0 0 0 0 0 0 8 52 138 203 224 217 197 154 123 105 94 86 79 71 64 59 55 51 46 43 42 40 36 32 28 0 .40 0 0 0 0 0 0 5 37 105 170 206 213 203 164 131 110 97 88 81 72 65 60 56 51 46 43 42 40 36 32 28 0 .50 0 0 0 0 0 0 0 4 26 78 140 184 203 191 155 126 10 95 86 76 69 62 57 53 48 44 42 41 37 33 28 0 .75 0 0 0 0 0 0 0 1 10 34 73 117 153 184 173 146 122 105 94 V 73 64 58 54 49 45 43 41 37 33 28 0 1.0 0 0 0 0 0 0 0 0 0 0 4 17 42 114 168 178 159 134 114 94 82 70 61 57 52 47 44 42 39 35 28 0 1.5 0 0 0 0 0 0 0 0 0 0 0 0 1 10 44 98 144 163 157 130 105 84 69 61 56 52 47 44 40 36 29 6 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 14 44 87 127 153 141 110 83 69 61 56 51 47 42 38 30 17 2.5 0 0 , 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 16 42 97 138 145 107 82 68 60 55 51 43 40 32 25 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 5 27 71 127 139 105 81 68 60 55 46 41 33 27 ------------------------------------------------------------------------ ------------------------------------------------------------ RAINFALL TYPE = II TC = 0.3 HR SHEET 3 OF 10 C;n & Exhibit 5-11, continued: Tabular hydrograph unit discharges (csm/in) for type II rainfall distribution TRVL --------------------------------------------------- HYDROGRAPH TIME (HOURS) --------------------------------------------------- TIME 11 .3 11.9 12.1 . 12.3 12.5 12.7 13.0 13.4 13.8 14.3 15.0 16.0 17.0 18.0 20.0 , 26.0 (MR) 11 .0 11.6 12.0 12.2 12.4 12.6 12.8 13.2 13.6 14.0 14.6 15. 5 16.5 17.5 19.0 22.0 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.10 * * * TC =0.4 MR * * * IA/P = 0.10 ------------------------------------------------------------------------------------------------------------------------------------ 0.0 18 25 36 77 141 271 468 592 574 431 298 216 163 104 77 63 55 49 44 38 34 31 28 25 22 21 20 15 16 14 12 0 .10 18 24 34 67 116 219 385 523 557 473 357 263 196 119 84 67 57 51 46 39 35 32 29 25 22 21 20 19 16 14 12 0 .20 15 20 28 44 59 97 179 316 454 523 489 401 309 178 112 81 65 56 49 42 37 33 30 26 23 21 20 19 17 14 12 0 .30 15 20 27 41 5@3 82 147 260 389 478 486 429 349 210 129 89 69 58 51 43 38 33 30 27 24 21 20 19 17 14 12 0 .40 13 17 23 33 38 48 71 121 214 331 429 467 442 308 189 120 85 66 56 47 41 35 31 28 24 22 20 19 17 15 12 0 .50 12 16 22 31 36 44 62 102 176 279 379 438 440 339 218 137 94 71 59 49 42 35 31 28 25 22 21 19 17 15 12 0 .75 10 13 17 24 26 30 35 45 65 106 170 251 326 393 341 245 1614 112 81 59 48 39 33 30 26 23 21 2 0 18 15 12 0 1.0 8 10 13 17 19 21 24 27 31 37 50 75 118 251 360 376 292 205 138 83 60 45 36 32 28 25 22 21 1 8 1 6 12 1 1. 5 6 7 9 12 13 14 15 17 19 21 23 26 31 56 121 224 311 333 293 192 115 66 45 36 31 28 25 22 19 17 13 4 2.0 4 5 6 8 8 9 10 10 11 12 14 15 16 20 27 43 85 159 243 306 264 154 74 47 37 32 28 25 21 18 14 9 2. 5 2 3 4 5 6 6 7 7 8 9 9 10 11 13 16 20 27 46 85 184 285 262 147 74 47 37 32 28 22 19 15 11 3.0 1 2 2 3 4 4 4 5 5 6 6 7 7 8 10 12 14 17 23 47 109 227 269 160 83 50 38 32 25 21 16 11 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.30 * * * TC =0.4 MR * * * IA/P = 0.30 ------------------------------------------------------------------------------------------------------------------------------------ 0.0 0 0 0 4 26 113 296 480 495 413 306 234 186 127 1CO 84 74 67 61 54 49 45 41 37 33 31 29 28 25 21 19 0 Cn (D .10 0 0 0 0 2 18 81 224 395 462 430 347 272 172 121 96 82 73 66 57 51 46 42 38 34 31 30 28 25 22 19 0 r@ 0 .20 0 0 0 0 2 13 59 169 320 414 424 373 305 196 134 103 85 75 67 59 52 47 43 39 34 32 30 29 25 22 19 0 @:s .30 0 0 0 0 0 1 9 42 127 255 361 403 383 274 181 127 99 83 73 63 55 48 44 40 36 32 30 29 26 23 19 G 01 @11 .40 0 0 0 0 0 1 6 30 94 202 308 372 379 298 203 141 106 87 76 65 56 49 44 40 36 32 31 29 26 23 19 0 .50 0 0 0 0 0 0 0 4 21 70 158 258 334 364 270 187 133 102 85 70 60 51 46 41 37 33 31 30 26 23 19 0 .75 0 0 0 0 0 0 0 2 8 30 76 145 219 321 305 241 177 130 102 78 65 55 47 43 38 34 32 30 27 24 19 0 1.0 0 0 0 0 0 0 0 0 0 1 4 15 42 150 267 308 272 209 154 103 79 62 51 45 41 37 33 31 28 25 19 1 (D 1.5 0 0 0 0 0 0 0 0 0 0 0 0 1 10 51 136 226 274 263 195 131 85 62 51 45 41 36 33 29 26 20 6 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 6 31 86 162 252 239 162 93 64 52 45 41 37 31 28 21 15 00 2. 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 9 33 112 2C2 235 155 92 64 52 45 41 33 29 23 18 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 21 76 182 221 148 90 63 51 45 36 31 24 18 ------------------------------------------------------------------------------------------------------------------------------------ IA/P 0.50 TC =0.4 MR 1A/P = 0.50 ------------ 0.0 0 0 0 0 0 7 59 168 245 257 213 186 163 128 109 96 88 81 75 67 62 58 54 50 45 43 41 39 35 31 28 0 .10 0 0 0 0 0 0 5 41 125 205 240 222 198 154 123 106 94 86 79 71 64 60 56 51 46 43 42 40 36 32 28 0 .20 0 0 0 0 0 0 3 28 93 168 216 220 205 164 131 110 97 88 81 72 65 60 56 51 46 43 42 40 36 32 28 0 .30 0 0 0 0 0 0 0 2 20 69 135 189 209 192 155 126 107 95 86 77 69 62 57 53 48 44 42 41 37 33 28 0 .40 0 0 0 0 0 0 0 1 14 50 106 161 193 202 163 133 112 98 89 78 70 62 58 53 48 44 42 41 37 33 2E 0 .50 0 0 0 0 0 0 0 1 9 37 83 135 174 194 171 140 117 102 91 80 71 63 58 54 49 45 43 41 37 33 28 0 .75 0 0 0 0 0 0 0 0 0 3 15 40 76 147 177 169 146 124 107 90 79 68 60 56 51 47 43 42 38 34 28 0 1.0 0 0 0 0 0 0 0 0 0 0 1 7 21 78 141 173 167 146 125 101 86 73 63 58 53 48 45 42 39 35 2P 1 1 .5 0 0 0 0 0 0 0 0 0 0 0 0 0 5 26 71 121 153 159 139 113 89 72 63 57 53 48 44 40 37 29 7 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 16 45 86 138 150 125 93 74 64 59 53 48 42 39 31 20 2 . 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 17 59 112 143 121 91 73 63 57 53 45 40 32 26 3.0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 11 40 101 138 117 90 73 63 57 48 42 34 27 ------------------------------------------------------------------------------------------------------------------------------------ RAINFALL TYPIE = II TC 0.4 MR S H =- E T4 CF 10 om Exhibit 5-11, continued: Tabular hydrograph unit discharges (csm/in) for type Il rainfall distribution TRVL --------------------------------------------------- HYDRCGRAPH TIME (HOURS) --------------------------------------------------- T 1 ME 11 .3 11 . 9 12.1 12.3 12.5 12.7 13.0 13.4 13.8 14.3 15.0 16.0 17.0 18.0 20.0 26.0 (Hq) 11.0 11 .6 12.0 12.2 12.4 12.6 12.8 13. 2 13.6 14.0 14.6 15.5 16.5 17.5 19.0 22.0 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - +- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - !A /P = 0. 10 * * * TC =0.5 HR * * * IAIP = 0.10 - - - - - - - - - - - -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 94 96 53 47 41 36 32 29 26 23 21 14 0 0 17 23 32 57 170 3C5 467 5 2 Q 507 402 297 226 140 74 61 20 19 16 12 1C 16 22 30 51 80 140 252 395 484 499 434 343 265 162 103 80 65 55 49 42 36 33 29 26 23 21 20 19 16 14 12 0 .20 14 19 25 38 47 69 116 207 332 434 477 449 378 238 149 101 77 62 53 45 39 34 30 27 24 22 20 19 17 14 12 0 30 13 13 24 35 43 60 97 170 278 382 446 448 4CI 270 171 114 83 66 56 46 40 34 31 27 24 22 20 19 17 1 5 12 0 40 12 15 21 29 33 40 53 63 141 233 332 408 434 361 243 157 107 79 64 51 43 36 32 28 25 22 21 20 17 1 5 12 0 50 11 15 20 28 31 37 48 71 118 194 286 367 412 378 271 178 119 86 68 53 44 37 32 29 25 23 21 20 17 1 5 12 0 75 9 11 1 4 19 21 24 27 31 37 49 74 118 182 319 374 328 244 169 117 76 56 43 35 31 25 25 22 21 18 16 12 1 1.0 7 9 1 2 16 17 19 21 24 27 32 40 55 83 188 3C9 359 322 245 172 102 68 49 38 32. 29 26 23 21 19 16 12 1 1.5 5 7 8 11 12 13 14 15 17 19 21 23 27 43 89 175 269 322 309 225 140 77 49 38 32 29 25 23 20 17 13 5 lp 0 3 4 6 7 8 8 9 10 10 11 12 14 15 18 23 35 65 123 202 297 280 181 88 52 39 33 29 26 21 19 1 -' 10 1@ 2 5 2 3 4 5 5 6 6 7 7 8 9 V. 10 12 15 1 8 24 36 66 150 244 278 171 87 52 39 33 29 2 't' 20 15 11 3 ." 1 1 2 3 3 4 4 4 5 5 6 6 7 8 9 11 13 16 20 37 86 198 263 182 96 56 40 33 26 21 16 11 ------------------------------------------------------------------------------------------------------------------------------------- 1A/P - 0.3C * * * TC =O.- HR * * * IA/P = 0.30 61 ------------------------------------------------------------------------------------------------------------------------------------ P, C.0 0 0 r. 1 9 53 157 314 433 439 379 299 237 159 11 ? 95 81 71 t5 56 50 46 42 38 34 31 30 28 25 22 19 0 Co. .10 0 01- 0 D 1 6 37 11 7 248 372 416 391 3 3 Ci 218 150 113 92 79 70 60 53 47 43 39 35 32 30 29 26 22 19 0 CD 29 0 0 0 D 1 4 26 87 194 313 332 388 349 244 167 122 97 82 72 62 54 48 43 39 35 32 30 29 26 22 19 0 0 0 0 3 1 9 64 151 259 341 372 316 223 156 117 94 80 67 58 50 45 41 36 33 31 29 26 23 19 0 .40 0 0 0 0 0 2 1 3 47 116 211 298 354 328 245 172 127 110 0 83 69 59 51 45 41 37 33 31 29 26 23 19 0 p- .50 0 0 0 0 0 0 0 1 9 34 89 170 255 341 303 225 161 120 96 76 64 54 47 42 38 34 31 30 27 24 19 0 .75 0 0 0 0 0 0 0 1 4 14 41 89 152 270 305 268 207 155 118 87 70 57 48 44 39 35 32 30 27 24 19 0 1 .0 0 C 0 0 0 0 0 0 0 0 2 7 22 98 212 295 285 237 181 120 89 67 53 46 42 38 34 31 28 25 19 2 t@ CD 5 0 0 0 0 0 0 0 0 0 0 0 0 0 5 30 95 183 249 265 217 152 96 66 53 46 41 37 34 30 26 20 8 0 0 0 0 0 0 0 0 0 3 18 59 125 221 245 105 69 54 47 42 0 0 0 0 0 0 152 38 32 28 22 16 00 2.5 01 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 5 21 94 174 230 172 103 69 54 46 42 34 30 23 18 7.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 13 56 157 217 163 101 68 53 46 37 31 25 18 -- --- - --- - ---- --- - ----- - -- ------ --------------- -------- ---- --- ----- -- -- ---------------- ----------------------- - -- ------------------ -- IA/P = 0.50 * * * TC =0.5 MR * * * IA/P = 0.50 ------------------------------------------------------------------------------------------------------------------------------------ C.0 0 0 0 0 0 2 26 89 170 217 229 2CO 179 144 119 104 93 85 78 70 64 59 55 51 46 43 41 40 36 32 28 0 .10 0 0 C. 0 0 0 1 18 65 135 190 216 2G5 170 137 115 101 91 '8 3 74 67 61 56 52 47 44 42 40 36 32 28 0 .20 0 0 0 0 0 0 1 1 2 47 106 162 198 203 178 145 121 105 94 85 76 68 61 57 52 48 44 42 40 37- 32 28 0. .30 0 0 0 0 0 0 0 1 8 34 82 135 177 194 168 139 117 102 92 80 71 63 58 54 49 45 43 41 37 33 28 0 .40 0 0 C 0 0 0 0 0 6 25 63 111 155 189 174 146 122 106 94 82 73 64 58 54 50 45 43 41 37 33 28 0 .50 0 0 0 0 0 0 0 0 4 18 48 90 133 184 177 152 128 110 97 84 74 65 59 55 50 45 43 41 38 33 28 0 .75 0 0 0 0 0 0 0 0 1 7 22 47 !80 142 169 164 144 124 108 91 79 68 61 56 51 47 44 42 38 34 23 0 1 .0 0 0 0 0 0 0 0 0 0 0 1 3 11 51 112 155 166 154 134 109 91 76 65 59 54 49 45 43 39 35 28 2 1 . 5 0 0 0 0 0 0 0 0 0 0 0 0 0 2 16 50 97 136 154 145 121 95 75 64 58 54 49 45 41 37 29 10 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 18 47 86 134 146 125 94 75 64 58 53 49 42 39 31 21 2 . 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 11 44 95 140 127 97 77 65 58 54 45 41 33 26 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 7 29 86 135 122 95 76 65 58 49 43 35 .27 ------------------------------------------------------------------------------------------------------------ ------------------------- RAINFALL TYPE = 11 TC = 0. 5 MR SHEET 5 OF 10 Exhibit 5-11, continued: Tabular hydrograph unit discharges (csm/in) for type 11 rainfall distribution TRVL --------------------------------------------------- HYDRCGRAPH TIME (HOURS) --------------------------------------------------- TIME 11.3 11.9 12.1 12.3 12.5 12.7 13.0 13.4 13.8 14.3 15.0 16.0 17.0 18.0 20.0 26.0 (HR)11.0 11.6 12.0 12.2 12.4 12.6 12.8 13.2 13.6 14.0 14.6 15.5 16.5 17.5 19.0 22.0 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.10 * * * TC =0.75 MR * * * IA/P = 0.10 ------------------------------------------------------------------------------------------------------------------------------------ 0.0 13 18 24 36 46 68 115 194 294 380 424 410 369 252 172 123 93 74 61 49 41 35 31 27 24 22 20 19 17 15 12 0 .10 13 17 23 34 42 59 97 162 250 337 395 405 381 279 191 135 100 79 65 51 42 36 31 28 25 22 21 19 17 15 12 0 . 20 11 15 20 28 32 39 52 82 135 211 295 362 391 351 255 178 127 95 75 57 46 38 32 29 26 23 21 20 17 15 12 0 .30 11 14 19 26 30 36 47 70 113 179 256 326 379 360 277 196 140 103 80 60 4.8 38 33 29 26 23 21 20 18 15 12 0 .40 10 12 16 22 25 28 33 42 61 96 151 221 291 367 336 255 182 131 98 69 54 42 34 30 27 24 22 20 18 16 12 0 50 9 12 16 21 24 27 31 39 53 82 128 190 258 358 343 V4 200 144 106 74 56 43 35 30 27 24 22 2o 13 16 12 0 75 8 10 13 17 18 21 23 26 31 39 55 82 122 230 314 329 281 217 161 104 72 51 38 33 29 26 23 21 19 16 12 1 1.0 6 8 10 13 14 15 17 19 21 23 27 32 42 89 177 272 319 303 249 163 1 C 5 66 45 36 31 27 24 22 19 17 13 3 1 .5 4 5 7 9 10 10 11 12 14 15 16 19 20 27 46 90 163 241 295 275 2C4 119 66 45 35 31 27 24 20 18 13 7 2.0 3 4 5 6 7 7 8 9 9 10 11 12 13 16 20 28 48 89 151 245 274 213 115 65 44 35 30 27 22 19 14 10 2 .5 1 2 3 4 4 5 5 6 6 7 7 8 8 10 12 14 17 24 37 86 170 260 219 127 71 47 36 31 24 20 16 11 3.0 1 1 2 3 3 3 4 4 4 5 5 5 6 7 8 10 11 14 17 30 64 157 247 205 122 70 46 36 27 22 17 12 ------------------------------------------------------------------------------------------------------------------------------------ 1A/P = 0.30 * * * TC =0.75 MR * * * IA/P = 0.30 ------------------------------------------------------------------------------------------------------------------------------------ 0.0 0 0 0 0 1 6 30 86 174 266 326 348 328 246 181 138 110 92 79 66 57 49 44 40 36 32 31 29 26 23 19 . 0 Co .10 0 0 0 0 0 1 4 22 65 137 223 292 329 303 228 170 131 106 89 73 61 52 46 41 37 33 31 29 26 23 19 0 .20 e 0 0 0 0 0 3 15 48 108 185 256 305 321 245 184 141 112 93 75 63 53 46 42 37 34 31 30 27 23 19 0 .30 0 0 C 0 0 2 11 36 84 151 221 277 308 260 199 152 120 98 79 65 54 47 42 38 34 31 30 27 23 19 0 .40 0 0 0 0 0 0 1 8 27 65 122 188 286 3C1 243 187 144 114 87 71 57 48 43 39 35 32 30 27 24 19 1 50 0 0 0 0 0 0 0 1 6 20 50 98 158 263 292 254 200 155 122 91 74 59 49 44 40 35 32 30 27 24 19 1 75 0 0 0 0 a 13 0 0 0 2 8 23 51 140 231 269 253 211 167 119 90 68 53 46 42 37 34 31 28 25 19 2 1 .0 a 0 0 0 0 0 0 0 0 0 0 1 4 29 96 136 249 261 231 169 120 84 61 50 44 40 36 33 29 26 20 5 1 .5 0 0 0 0 0 0 0 0 0 0 0 0 0 1 8 34 91 163 220 241 197 131 83 61 50 44 40 35 31 27 21 12 ;- . 0 0 0 0 0 0 0 0 0 0 0 0 G 0 0 2 11 36 85 174 226 200 127 82 60 49 44 39 32 29 22 17 00 - 2 . 5 0 0 0 0 C 0 0 0 0 0 0 0 0 0 1 6 37 105 196 214 135 87 62 51 44 36 31 24 18 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 24 96 205 189 130 85 62 50 39 32 26 18 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.50 * * * TC =0.75 MR * * * IA/P = 0.50 ------------------------------------------------------------------------------------------------------------------------------------ C, . 3 0 0 0 0 .0 0 2 16 45 92 137 166 1 E 5 170 146 125 110 98 89 79 70 63 58 53 48 44 42 41 37 33 28 0 .10 0 0 0 0 0 0 1 11 34 73 115 149 180 163 141 122 107 96 64 74 65 59 54 50 45 43 41 38 33 28 0 . 20 0 13 0 0 0 0 0 1 8 25 57 96 131 173 166 146 126 111 99 S6 76 66 59 55 50 46 43 41 33 34 28 0 .30 0 0 G 9 0 0 0 0 1 5 18 44 79 143 170 160 141 122 108 92 al 69 61 56 52 47 44 42 38 34 28 1 .40 0 0 0 0 0 0 0 0 0 4 14 34 64 127 166 162 145 127 111 95 82 70 62 57 52 47 44 42 38 34 28 1 . 50 0 0 0 0 0 0 0 0 0 0 2 10 26 32 133 162 157 140 123 103 88 75 64 58 53 49 45 43 39 35 28 2 .75 0 0 0 0 0 0 0 0 0 1 4 12 47 93 139 154 148 135 113 96 80 67 60 55 50 46 43 39 36 29 3 1 .-0 0 0 0 0 ri G 0 0 0 0 0 0 0 6 30 73 119 146 151 134 113 91 74 63 58 53 48 45 41 37 29 7 1 . 5 0 0 0 0 0 0 0 0 0 0 0 0 0 1 9 30 66 105 143 143 117 90 73 63 57 52 48 42 39 30 18 2.0 0 0 C 0 0 0 0 0 0 0 0 0 0 0 0 0 2 11 30 77 121 13 ? 114 88 72 63 57 52 44 40 32 25 2. 5 0 0 0 C 0 0 0 C 0 0 , 0 0 0 0 0 0 1 3 19 55 111 132 111 87 71 62 56 47 42 34 27 3.0 0 0 0 0 0 0 0 0 0 0 0 0 D 0 0 0 0 0 2 12 51 112 128 108 86 71 62 51 44 36 27 ------------------------------------------------------------------------------------------------------------------ ------------------ RAINFALL TYPE = II TC = 0.75 MR SHEET 6 OF 10 Exhibit 5-11, continued: Tabular hydrograph unit discharges (csm/in) for type 11 rainfall distribution TRVL --------------------------------------------------- HYDROGRAPH TIME (HOURS) --------------------------------------------------- TIME 11 .3 11.9 12.1 12.3 12. 5 12.7 13.0 13.4 13.8 14.3 15.0 16.0 17.0 12.0 20.0 26.0 (HR)l 1 .0 11.6 12.0 12.2 12.4 12.6 12.8 13.2 13.6 14.0 14.6 15.5 16.5 17.5 19.0 22.0 ------------------------------------------------------------------------------------------------------------------------------------ IAIP = 0.10 * * * TC =1 .0 MR * * * IA/P = 0.10 ------------------------------------------------------------------ 4----------------------------------------------------------------- 0.0 11 15 20 29 35 47 72 112 168 231 289 329 357 313 239 175 133 103 83 63 50 40 33 29 26 23 21 20 17 15 12 0 .10 10 13 17 24 27 33 42 62 95 144 202 260 306 340 293 222 165 126 98 72 56 43 35 30 27 24 22 20 18 15 12 0 .20 10 13 17 23 26 30 38 54 82 123 176 232 281 332 303 238 179 136 105 76 59 45 35 30 27 24 22 20 18 16 12 1 .30 9 12 16 22 24 28 35 48 70 105 152 205 256 323 310 254 193 146 113 81 61 46 36 31 27 24 22 20 18 16 12 1 .40 8 1 1 14 19 21 23 27 32 42 61 91 132 181 276 318 294 237 181 138 95 70 51 39 32 28 25 23 21 18 16 12 1 .50 8 10 13 18 20 22 25 30 38 53 78 114 159 253 311 300 251 195 149 102 74 53 40 33 29 25 23 21 18 16 12 1 .75 7 8 11 14 16 17 19 21 25 30 38 53 76 146 228 284 293 256 208 143 99 66 46 36 31 27 24 22 19 17 13 2 1.0 5 7 8 11 12 13 14 16 17 19 22 25 31 57 111 188 256 286 272 208 144 90 56 41 33 29 26 23 20 17 13 4 1.5 4 > 6 8 8 9 10 11 12 13 14 15 17 22 33 59 107 171 231' 268 235 157 88 56 41 33 29 25 21 18 14 8 2.0 2 3 4 5 5 6 6 7 7 8 9 9 10 12 15 19 27 44 78 157 231 252 167 96 59 4 2' 34 29 23 20 15 11 2 . 5 1 2 2 3 4 4 4 5 5 6 6 7 7 8 10 12 15 19 27 58 120 214 241 159 94 59 42 34 26 21 16 11 17-1 3.0 0 1 1 2 2 3 3 3 4 4 4 5 5 6 7 8 10 12 14 22 44 113 214 231 152 91 58 42 29 23 17 12 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.30 * * * TC =1 .0 MR * * * IA/P = 0.30 ------------------------------------------------------------------------------------------------------------------------------------ 0.0 0 0 0 0 1 4 16 42 83 137 195 243 271 292 227 178 143 117 98 79 66 55 47 42 38 34 31 30 27 23 19 0 .10 0 0 0 0 0 0 3 12 32 66 113 168 218 279 UO 213 169 136 113 88 72 59 49 43 39 35 32 30 27 24 19 1 .20 0 0 0 0 0 0 2 9 24 52 93 143 193 271 271 225 180 145 119 92 75 60 50 44 39 35 32 30 27 24 19 1 .30 0 0 0 0 0 0 1 6 18 41 75 120 169 246 264 234 191 153 125 96 78 62 51 44 40 36 33 31 27 24 19 1 Cal .40 0 0 0 0 0 0 0 1 4 14 32 61 100 190 251 259 222 181 146 109 86 67 53 46 41 37 33 31 28 25 19 2 .50 0 0 0 0 0 0 0 1 3 10 24 49 83 168 237 254 230 191 155 115 90 69 54 47 42 37 34 31 28 25 19 2 .75 '0 0 0 0 0 0 0 0 0 1 4 12 25 76 150 213 239 228* 198 149 112 82 61 50 44 39 35 32 29 26 20. 4 1.0 0 0 0 0 0 0 0 0 0 0 0 1 2 15 51 113 182 226 234 197 150 104 72 56 47 42 38 34 30 27 20 7 1 .5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 18 51 104 162 220 210 158 102 71 56 47 42 37 31 28 .22 13 2.0 0 0 0 0 0 0 0 0 0 e b o o o o 1 5 20 49 121 187 209 152 100 70 55 47 41 34 29 23 17 00 2. 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 7 32 87 171 199 146 98 69 54 46 37 31 24 18 ".0 0 a 0 0 .0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 13 62 158 192 151 103 73 56 41 34 26 18 -------------------- IAIP = 0.50 TC =1.0 MR IA/P 0.50 ------------------------------------------------------------------------------------------------------------------------------------ 0.0 0 0 0 0 0 0 1 7 21 42 71 101 126 160 154 138 123 110 100 87 77 67 60 55 50 46 43 41 38 34 28 1 .10 0 0 0 0 0 0 0 1 5 15 33 58 87 134 156 149 134 120 108 93 82 71 62 57 52 47 44 42 38 34 28 1 .20 0 0 0 0 0 0 0 1 4 12 26 48 74 123 153 153 137 123 111 95 84 72 63 57 52 47 44 42 38 34 28 1 .30 0 0 0 0 0 0 0 0 3 9 20 38 62 111 143 150 140 127 114 98 86 73 63 58 53 48 45 42 39 35 28 1 .40 0 0 0 0 0 0 0 0 0 2 6 16 31 75 120 145 148 137 123 106 91 77 66 59 54 49 45 43 39 35 29 2 .50 0 0 0 0 0 0 0 0 0 1 5 12 25 64 109 139 146 139 127 108 94 79 67 60 55 50 46 43 39 36 29 3 .75 0 0 0 0 0 0 0 0 0 0 2 5 12 39 78 115 136 140 134 117 101 84 70 62 56 51 47 44 40 36 29 4 1.0 0 0 0 0 0 0 0 0 0 0 0 0 1 7 26 59 96 125 139 133 117 97 78 66 59 54 49 46 41 37 29 8 1.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 9 26 54 86 123 133 119 95 77 66 59 54 49 43 39 31 17 2.0 0 0 0 0 0 0 0 0 a 0 0 0 0 0 0 0 3 10 25 64 104 129 116 93 76 65 58 53 45 41 33 24 2.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 10 34 84 125 117 96 78 66 59 49 43 35 27 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .0 0 1 6 32 89 122 114 94 77 66 53 45 37 27 ------------------------------------------------------------------------------------------------------------------------------------ RAINFALL TYPE = 11 TC = 1.0 MR SHEET 7 OF 10 Exhibit 5-11, continued: Tabular hydrograph unit discharges (csm/in) for type 11 rainfall distribution TRVL --------------------------------------------------- HYDROGRAPH TIME (HOURS) -------- z------------------------------------------- TIME 11.3 11.9 12.1 12.3 12.5 12.7 13.0 13.4 13.8 14.3 15.0 16.0 17.0 18.0 20.0 26.0 (MR)11.0 11.6 12.0 12.2 12.4 12.6 12.8 13.2 13.6 14.0 14.6 15.5 16.5 17.5 19.0 22.0 ---------------------------------------------------------------------------------------------------------- --------------- IA/P = 0.10 * * * TC =1.25 MR * * * IA/P = 0.10 ----------------------------------------------------------------- ------------------------------------------------------------------ 0.0 10 13 18 25 29 38 54 81 118 163 213 256 284 311 266 212 163 129 104 78 61 47 37 31 27 24 22 20 18 16 12 1 .10 10 13 17 23 27 34 47 69 102 143 189 234 267 297 274 226 175 138 111 82 64 48 38 31 27 24 22 20 18 16 12 1 .20 9 11 15 20 22 26 31 42 60 88 124 168 212 280 292 261 212 166 131 95 72 53 40 33 28 25 23 21 18 16 12 1 .30 8 11 14 19 21 24 29 38 53 76 108 148 190 263 288 268 224 177 140 101 76 55 41 34 29 25 23 21 18 16 12 2 .40 8 10 13 '18 20 23 27 34 46 66 94 130 170 245 282 273 235 188 149 107 80 58 42 34 29 26 23 21 19 16 12 2 ..50 7 9 12 16 17 19 22 25 31 41 58 82 114 190 256 279 262 222 178 127 93 65 46 36 31 27 24 22 19 17 13 - 2 .75 6 8 10 14 15 17 19 21 25 31 41 56 78 13 9207 254 265 245 208 152 110 75 51 39 32 28 25 22 19 17 13 3 1.0 5 6 8 10 11 13 14 15 17 19 22 26 33 60 109 173 230 261 255 208 153 100 64 46 36 30 26 24 20 18 13 5 1.5 3 4 5 7 7 8 9 9 10 il 12 13 15 19 27 45 79 130 186 247 239 180 108 68 48 37 31 27 22 19 14 10 2-0 2 3 4 5 6 6 7 7 8 8 9 10 11 13 16 22 35 59 98 171 236 236 156 95 62 44 35 30 23 20 15 11 2.5 1 2 2 3 4 4 4 5 5 5 6 6 7 8 10 12 14 19 28 58 114 197 226 163 102 65 46 36 26 21 16 11 3.0 0 1 1 2 2 2 2 3 3 3 4 4 4 5 6 7 9 10 13 19 35 88 184 218 169 109 70 49 31 24 18 12 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.30 T- =1.25 MR 1A/P = 0.30 ------------------------------------------------------------------------------------------------------------------------------------ 0.0 0 0 0 0 0 2 9 25 50 86 130 174 208 253 235 201 164 136 115 92 76 61 51 44 39 35 32 30 27 24 19 1 GO (D .10 0 0 0 0 0 0 1 6 19 40 71 110 153 Z17 247 227 191 157 131 103 84 66 53 46 41 36 33 31 28 24 19 2 n 0 .20 0 0 0 0 0 0 1 4 14 31 58 93 133 202 239 231 199 165 138 108 87 68 55 47 41 37 33 31 28 25 19 2 .36 0 0 0 0 0 0 0 1 3 10 24 46 77 152 210 236 222 190 158 122 97 74 58 49 43 38 34 32 28 25 20 3 .40 0 0 0 0 0 0 0 0 2 8 19 37 64 134 196 232 225 198 166 127 101 77 59 50 43 38 35 32 28 25 20 3 .50 0 0 0 0 0 0 0 0 0 2 6 14 30 82 151 206 228 217 189 146 113 35 64 52 45 40 36 33 29 26 20 5 .75 0 0 0 0 0 0 0 0 0 1 2 7 15 49 1C5 164 205 218 205 166 129 95 69 55 47 41 37 33 29 26 20 6 1.0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 32 77 134 185 214 203 166 120 83 63 52 45 39 35 30 27 21 10 (D 1 .5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 11 33 72 121 184 203 171 117 82 62 51 44 39 32 29 22 15 @0 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 7 21 67 132 194 174 123 86 64 52 45 35 31 24 18 00 2.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 13 46 121 187 166 119 84 63 52 39 32 25 13 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 8 44 129 180 160 116 83 63 44 35 27 18 ---------------------------------------------------------------------------------------------------------- +---* --------------------- IA/P = 0.50 TC =1.25 MR IA/P = 0.50 ------------------------------------------------------------------------------------------------------------------------------------ 0.0 0 0 0 0 0 0 1 5 13 26 44 68 91 125 142 142 128 117 107 94 83 72 63 57 52 47 44 42 38 34 28 2 .10 0 0 0 0 0 0 0 0 3 10 20 36 57 100 129 140 136 125 114 100 88 76 65 .59 54 49 45 43 39 35 29 3 .20 0 0 0 0 0 0 0 0 2 7 16 30 48 90 122 139 139 127 117 102 90 77 66 60 54 49 45 43 39 35 29 3 .30 0 0 0 0 0 0 0 0 0 2 5 12 24 59 98 126 137 134 125 109 96 82 69 61 56 51 46 44 40 36 29 4 .40 0 0 0 0 0 0 0 0 0 1 4 10 19 51 89 119 134 136 127 112 98 83 70 62 56 51 47 44 40 36 29 5 .50 0 0 a 0 0 0 0 0 0 1 3 7 15 43 79 112 131 135 129 114 100 35 71 63 57 52 47 44 40 36 29 6 .75 0 0 0 0 0 0 0 0 0 0 0 1 3 15 39 71 102 123 130 125 112 94 78 67 60 54 49 46 41 37 .29 9 1.0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 17 40 71 101 121 129 121 103 84 71 62 56 51 47 42 38 30 13 1.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 10 26 51 92 119 125 105 86 72 63 57 52 44 40 32 23 2.0 0 0 .0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 11 35 72 112 122 103 85 71 63 56 47 42 34 26 2.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 7 24 66 111 119 1C1 83 71 62 51 44 36 27 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 23 71 110 116 99 82 70 55 46 37 27 ------------------------------------------------------------------------------------------------------------------------------------ RAINFALL TYPE = II TC = 1.25 HR SHEET 8 OF 10 Exhibit 5-11, continued: Tabular hydrograph unit discharges (csm/in) for type 11 rainfall distribution TRVL --------------------------------------------------- HYDRCGRAPH TIME (HOURS) --------------------------------------------------- T I M 11 . 3 11 .9 12.1 12.3 12. 5 12.7 13.0 13.4 13.8 14.3 15.0 16.0 17.0 18.0 20.0 26.0 1 . 0 11 .6 12.0 12.2 12.4 12.6 12.8 13.2 13.6 14.0 14.6 15. 5 16.5 17.5 19.0 22.0 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - I A /P = 0 . 10 TC =1 . 5 HR IA/P = 0.10 ------------------------------------------------------------------------------------------------------------------------------------ C . 0 9 11 1 5 21 25 31 41 58 32 112 147 184 216 255 275 236 198 159 129 9,8 76 57 43 35 30 25 23 21 18 16 12 1 1 1) 3 10 1 3 16 20 23 28 37 51 72 98 131 166 226 265 254 226 187 151 113 86 63 46 37 31 26 23 21 19 16 13 2 20 8 10 1 3 17 19 22 26 33 45 63 87 116 149 212 259 259 233 197 160 119 90 66 48 38 32 27 24 22 19 16 13 2 .30 7 9 1 2 16 18 21 24 30 40 55 76 103 134 197 244 255 218 206 169 125 95 68 49 38 32 27 24 22 19 17 13 2 .40 7 8 1 1 14 15 17 19 23 28 36 49 67 91 151 208 247 252 230 196 146 109 77 54 41 34 29 25 22 19 17 13 3 .51) 6 8 10 13 15 16 18 21 26 33 43 59 80 136 194 238 249 235 204 154 115 81 56 42 34 29 25 23 20 17 13 3 .75 5 7 8 11 12 13 14 16 18 21 25 32 42 76 125 179 222 240 233 193 148 102 67 48 38 32 27 24 20 18 13 5 1.0 4 5 7 8 9 10 11 12 13 14 16 18 2 2 34 59 101 152 201 236 230 193 135 86 59 44 35 30 26 21 18 14 7 1 .5 3 4 5 6 6 7 8 8 9 10 11 12 13 16 22 34 58 95 141 203 226 197 131 84 58 43 35 29 23 20 15 10 2.0 1 2 3 4 4 5 5 6 6 7 7 8 9 10 12 16 22 34 56 110 172 218 187 1 26 82 57 43 734 25 21 16 11 2 . 15 1 1 2 2 3 3 3 4 4 4 5 5 6 7 8 9 11 14 18 34 69 141 210 190 133 87 60 44 30 23 17 1 2 . C 0 0 1 1 2 2 2 2 3 3 3 3 4 5 5 6 8 9 11 16 27 66 149 204 181 128 85 58 35 25 18 12 IL3 ----------------------------------------------------------------------------- 4----------------------------------------------------- It A / P = 0 . 3 0 TC =1 . 5 HR IA/P = 0.30 ------------------------------------------------------------------------------------------------------- ---------------------------- 0 0 0 1 6 15 31 53 80 112 193 37 34 31 28 25 20 0 0 0 144 225 208 186 157 134 108 89 70 56 48 42 .?- 3 .10 0 0 0 0'. 0 0 1 4 12 25 43 68 97 157 198 219 203 178 151 120 98 77 60 50 44 38 35 32 28 25 20 0 1 3 9 19 35 57 114 168 201 213 196 171 13 q 10 84 64 53 46 40 36 33 29 26 20 4 C 20 0 0 0 0 0 0 - @:l .30 0 0 0 0 0 0 0 1 2 7 15 29 48 100 155 193 210 200 177 140 11 3 87 66 54 46 41 36 33 29 26 20 5 .40 a 0 0 0 0 0 0 0 2 5 12 23 39 87 141 184 207 202 182 146 117 89 68 55 47 41 36 33 29 26 20 5 . 50 0 0 0 0 0 0 0 0 0 1 4 9 18 51 1C1 153 190 205 197 164 131 99 73 58 49 43 38 34 30 26 20 7 .75 G 0 0 0 0 0 0 0 0 0 2 4 9 30 68 116 160 189 197 179 147 110 80 62 52 45 39 35 30 27 21 8 1.0 0 0 0 0 0 0 0 0 0 0 0 0 1 5 20 49 92 138 175 195 178 137 97 72 57 48 42 37 31 28 21 12 1 .5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 7 21 47 55 145 187 178 1 33 95 71 57 48 42 34 29 23 16 @ . -2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 13 45 97 162 1 80 138 99 74 58 49 38 32 25 18 00 - 2. 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 8 31 89 161 174 1 33 97 72 58 42 34 26 18 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 5 29 98 160 169 129 95 71 48 37 28 19 ---------- *------------------------------------------------------------------------------------------------------------------------- IA/P = 0.5C * * * TC =1 . 5 HR * * * IA/P = 0.50 ------------------------------------------------- ---------------------------------------------------------------------------------- .0.0 0 0 0 0 0 0 0 3 5 16 27 42 59 92 116 128 130 121 112 100 90 78 67 60 55 50 46 43 39 35 29 4 .13 0 0 0 0 0 0 0 2 6 12 22 35 51 84 110 125 128 123 114 102 91 79 68 61 55 50 46 43 39 35 29 4 .20 0 0 0 0 a 0 0 0 1 4 10 18 29 60 91 114 126 128 120 108 97 83 71 63 57 52 47 44 40 36 29 5 .30 0 0 0 0 0 0 0 0 1 3 8 14 24 52 83 108 123 126 122 110 98 85 72 63 57 52 48 44 40 36 29 6 C 0 0 C 0 0 0 0 0 0 1 2 6 12 31 60 90 1.12 124 126 116 104 90 75 66 59 54 49 45 41 37 29 8 5 0 0 0 0 0 0 0 0 0 0 0 2 4 9 26 53 83 1C6 121 125 118 106 91 77 67 60 54 49 46 41 37 29 a .75 0 0 0 0 0 0 0 0 0 0 1 2 5 16 36 62 88 108 119 122 112 97 81 69 62 56 51 47 42 18 30 1 1 i . 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 10 26 49 75 98 118 121 108 90 76 66 59 54 49 43 39 31 16 1 .5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 11 25 45 So 1C7 118 1C6 89 75 65 59 53 45 41 32 23 2 . C) 0 0 0 0 0 0 0 0 0 b 0 0 0 0 0 0 1 4 11 32 63 100 115 104 87 74 65 58 48 42 34 26 2.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 16 48 94 113 105 89 76 66 53 45 36 27 1.0 0 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 15 54 96 111 103 88 75 58 48 38 28 ----------------------------------------------------------------------- ------------------------------------------------------------- RAINFALL TYPE = II TC = 1.5 HR SHEET 9 *OF 10 Exhibit 5-11, continued: Tabular hydrograph unit discharges (csm/in) for type 11 rainfall distribution 00 TRVL --------------------------------------------------- HYDROGRAPH TIME (HOURS) --------------------------------------------------- TIME 11.3 11.9 12.1 12.3 12. 5 12.7 13.0 13.4 13.8 14.3 15.0 16.0 17.0 18.0 20.0 26.0 (HR)11.0 11.6 12.0 12.2 12.4 12.6 12.8 13.2 13.6 14.0 14.6 15.5 16.5 17.5 19.0 22.0 ---------------------------------------------------------------------- 4------------------------------------------------------------- IA/P = 0.10 * * * TC =2.0 HR * * * IA/P = 0.10 ------------------------------------------------------------------------------------------------------------------------------------ 0.0 7 9 12 16 18 21 27 36 49 64 82 104 127 171 201 226 208 193 171 132 105 79 58 45 36 30 26 23 20 17 13 3 .10 6 8 10 14 15 17 20 25 33 43 57 74 94 139 179 204 218 205 188 150 118 88 63 48 38 32 27 24 20 17 13 4 .20 6 8 10 13 14 16 19 23 29 39 51 66 84 128 169 198 213 207 192 157 123 91 65 49 39 33 28 24 20 17 13 4 .30 6 7 9 12 14 15 18 21 27 35 45 59 76 117 159 191 211 208 196 163 128 95 68 51 . 40 33 28 25 20 18 13 4 .40 5 6 8 11 12 13 15 17 2 C 24 31 41 53 87 128 167 197 209 205 180 145 106 75 55 43 35 30 26 21 18 14 5 - 50 5 6 8 10 11 13 14 16 18 22 28 37 48 78 118 158 190 208 208 185 151 111 77 57 44 36 30 26 21 18 14 5 . 75 4 6 7 9 10 11 12 13 15 18 22 27 35 58 91 129 164 191 202 194 167 125 87 63 48 38 32 27 22 18 14 6 1.0 3 4 6 7 a 8 9 10 11 12 14 16 18 28 46 74 110 147 178 201 193 156 108 ?6 56 43 35 30 23 19 14 8 1.5 2 3 3 5 5 5 6 6 7 8 8 9 10 12 16 23 36 57 86 137 178 195 160 113 79 58 45 36 26 21 16 11 2.0 1 2 2 3 3 4 4 4 5 5 6 6 7 8 10 12 16 23 35 67 112 169 190 154 110 78 57 44 30 23 17 11 2. 5 0 1 1 2 2 2 3 3 3 4 4 4 5 6 7 8 9 12 16 28 52 105 170 185 149 107 76 56 35 26 18 12 3.0 Q 0 1 1 1 1 1 2 2 2 2 3 3 3 4 5 6 7 8 12 18 41 99 161 180 152 112 80 45 30 19 12 @j ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.30 TC =2.0 HR IA/P = 0.30 ------------------------------------------------------------------------------------------------------------------------------------ 0 . 0 0 0 0 0 0 1 3 2 15 25 38 54 74 115 148 168 185 170 159 131 110 89 70 57 49 42 38 34 29 26 20 5 .10 0 0 0 0 0 0 0 2 6 12 21 32 47 85 124 153 169 180 168 145 120 96 75 60 51 44 39 35 30 26 20 6 .20 0 a 0 0 0 0 0 2 4 10 17 27 41 75 114 146 165 175 170 149 124 99 76 62 52 45 39 35 30 27 21 6 .30 0 0 0 0 0 0 0 0 1 3 7 14 23 49 86 122 151 170 174 160 136 107 82 66 54 47 41 37 31 27 21 8 .40 0 0 C 0 0 0 0 G 1 2 6 11 19 43 77 113 144 165 173 163 140 111 85 67 55 47 41 37 31 27 21 8 .50 0 0 G 0 0 0 0 0 1 2 4 9 16 37 A- 8 104 136 160 171 165 144 114 87 69 56 48 42 37 31 27 21 9 .75 a 0 0 0 0 0 0 0 0 0 1 2 5 15 34 62 96 127 152 167 160 132 100 77 62 52 45 40 32 28 22 11 1.0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 10 24 48 79 Ill 150 166 153 118 90 71 58 49 43 34 29 23 14 1.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 10 24 45 B8 130 161 148 115 88 70 57 48 37 31 24 17 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 10 32 68 122 157 143 113 87 68 56 42 34 26 18 00 2 .5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .0 0 0 0 1 4 16 51 114 153 144 116 89 70 49 38 27 19 . () 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 15 59 118 150 140 113 88 57 42 29 19 ----------------------------------------------------------------------------------------- 4----------------------------------------- IA/P = 0.50 TC =2.0 HR IA/P = 0.50 ------------------------------------------------------------------------------------------------------------------------------------ 0.0 0, 0 0 0 0 0 0 1 4 8 13 20 28 51 73 92 104 111 112 106 97 86 75 66 60 54 49 46 41 37 30 7 .10 0 0 0 0 0 0 0 1 3 6 11 17 24 45 68 87 101 109 .112 107 98 88 76 67 60 55 50 46 41 37 30 8 . 20 0 0 0 C) C 0 0 1 2 5 9 14 21 40 62 82 98 107 Ill 108 100 89 77 68 61 55 50 47 41 37 30 8 .30 G 0 C 0 0 0 0 0 0 2 4 7 12 26 46 67 86 100 108 111 1C4 93 80 70 63 57 52 49 42 38 30 10 .40 0 9 0 0 0 0 0 0 0 1 3 6 10 22 41 62 81 96 106 110 1C5 94 81 71 63 57 52 48 42 38 30 11 .50 0 0 0 0 0 0 0 0 0 0 1 2 4 13 Z7 46 67 35 99 110 108 ?8 85 74 66 59 54 49 43 39 31 13 .75 0 C 0 0 0 0 0 0 0 0 0 1 2 7 18 33 52 71 88 104 108 102 89 77 68 61 55 50 44 39 31 15 1.0 0 0 0 0 6 0 0 0 0 0 0 0 0 1 5 1 3 25 43 62 87 103 108 97 84 73 65 59 53 45 41 32 20 1.5 C 0 0 0 0 0 0 0 0 0 0 6 o 0 0 2 5 12 24 48 74 99 106 95 83 72 64 58 48 43 34 25 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 5 17 37 69 99 104 94 82 72 64 52 45 36 27 2. 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 8 27 65 95 102 95 83 ?3 58 49 38 28 3.0 0 0 0 0 ri 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 8 32 68 95 101 93 82 64 52 40 28 --7 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -*---+- RAINFALL TYPE = II TC = 2.0 HR SHEET 10 OF 10 Exhibit 5-111: Tabular hydrograph unit discharges (csm/in) for type III rainfall distribution TRVL --------------------------------------------------- HYDROGRAPH TIME (HOURS) ------------------------ ----------------------- TIME 11.3 11.9 12.1 12.3 12.5 12.7 13.0 13.4 13.8 14.3 15.0 16.0 17.0 18.0 20.0 26.0 (HR)11 .0 11.6 12.0 12.2 12.4 12.6 12.8 ; 13.2 13.6 14.0 14.6 15.5 16.5 17.5 19.0 22.0 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.10 * * * TC =0.1 HR * * * IA/P = 0.10 ------------------------------------------------------------------------------------------------------------------------------------ 0.0 29 38 57 172 241. 425 662 531 345 265 191 130 101 83 68 62 58 54 50 44 41 37 32 27 23 21 19 16 14 13 11 a .10 26 32 47 98 147 210 353 559 540 410 313 231 164 101 80 67 61 57 53 47 43 39 34 28 24 22 19 17 14 13 11 0 .20 25 31 44 86 127 182 296 471 517 446 357 273 200 117 26 70 63 58 54 48 44 39 34 29 24 22 20 17 14 13 11 0 .30 22 28 37 57 76 110 158 250 398 477 457 390 312 178 111 83 69 62 57 51 45 41 36 31 25 23 20 18 15 13 11 0 .40 21 27 35 53 68 96 137 213 336 430 448 410 345 210 128 96 72 64 58 52 46 41 36 31 26 23 20 18 15 13 11 0 .50 19 24 30 43 49 62 85 120 182 284 382 426 415 305 188 120 86 71 63 55 49 43 38 33 27 24 21 19 15 14 11 0 .75 17 22 27 37 41 49 62 84 120 181 258 327 375 353 264 177 120 88 72 59 52 45 39 34 29 25 22 20 15 14 11 0 1.0 13 17 22 27 30 33 37 43 52 66 91 131 190 315 358 307 220 149 104 72 60 50 43 37 32 27 23 21 16 14 12 0 1 .5 9 11 14 18 19 21 23 25 27 29 33 37 44 70 134 229 304 318 269 172 106 68 52 44 38 33 28 24 19 15 12 2 2.0 6 8 10 13 14 15 16 17 19 20 22 24 26 32 45 73 130 207 271 292 216 121 68 51 43 37 32 27 21 16 13 6 2. 5 3 4 6 8 9 10 10 11 12 13 14 16 17 20 23 29 38 57 97 189 271 244 136 75 53 44 38 33 24 19 14 9 3.0 1 2 4 5 6 6 7 8 8 9 10 11 12 14 16 19 23 28 38 74 146 256 226 131 74 53 44 37 27 21 14 10 ------------------------------------------------------------------------------------------------------------------------------------ IAIP = 0.30 TC =0.1 MR IA/P = 0.30 ------------------------------------------------------------------------------------------------------------------------------------ C.0 0 0 0 48 106 296 597 496 368 300 221 155 125 106 89 83 79 74 69 62 59 54 47 40 35 32 28 25 22 20 17 0 Co CD .10 0 0 0 35 82 225 473 488 408 336 260 190 14? 113 9.4 85 80 75 70 63 59 54 48 40 35 32 29 25 22 20 17 0 .20 0 0 0 7 26 64 171 372 449 422 365 295 225 142 109 92 84 79 74 66 61 56 50 43 36 33 30 26 22 20 17 0 .30 0 0 0 5 .19 49 130 291 397 414 381 323 258 161 118 96 86 80 75 68 62 57 50 43 37 33 30 27 22 20 17 0 .40 0 0 0 0 3 14 37 99 227 340 389 384 343 229 152 113 94 85 79 71 65 59 52 46 38 34 31 28 23 21 17 0 .50 0 0 0 0 2 10 28 75 177 286 355 374 354 256 170 123 99 87 80 73 66 60 53 46 39 35 31 28 23 21 18 0 .75 0 0 0 0 0 1 4 13 35 86 161 238 296 325 266 194 141 110 93 80 71 63 56 50 43 37 33 30 24 21 18 0 1.0 0 0 0 0 0 0 0 2 6 19 48 99 165 282 311 264 197 i44 112 88 77 67 59 52 45 39 34 31 24 22 18 0 1.5 0 0 0 0 0 0 0 0 0 0 0 1 4 29 99 197 265 277 236 162 113 84 69 60 53 46 39 35 28 23 19 2 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 8 35 94 172 233 253 196 124 83 68 59 52 45 39 31 25 20 8 2.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 11 37 88 184 235 201 122 83 67 59 52 45 34 27 21 13 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 7 38 110 222 202 131 88 69 60 52 39 31 22 15 ------------------------------------------------------------------------------------------------------------------------------------ IA/P 0.50 TC =0.1 HR IA/P = 0.50 ------------ 0.0 0 0 0 0 0107 226 282 258 209 155 130 123 107 97 95 91 87 82 78 74 69 61 52 47 43 39 35 32 29 25 0 .10 0 0 0 0 0 71 174 246 254 224 178 146 130 112 100 96 92 88 83 78 75 70 62 53 48 44 40 35 32 29 25 0 .20 0 0 0 0 0 0 48 132 208 239 229 195 162 127 109 99 95 91 87 80 77 72 65 56 49 45 41 36 32 30 25 0 .30 0 0 0 0 0 0 32 99 172 216 225 205 176 136 113 101 96 92 88 81 77 72 65 57 50 45 41 37 32 30 26 0 .40 0 0 0 0 0 0 0 21 73 139 191 213 208 164 131 Ill 100 95 91 85 79 74 68 60 51 47 43 38 33 30 26 0 .50 0 0 0 0 0 0 0 14 53 110 164 197 204 174 139 116 103 97 92 86 80 75 68 60 52 47 43 39 33 30 26 0 .75 0 0 0 0 0 0 0 5 22 54 96 137 166 180 159 134 115 103 96 89 83 77 70 63 54 48 44 40 33 31 26 0 1.0 0 0 0 0 0 0 0 0 0 2 10 29 60 132 175 169 146 124 109 97 89 81 74 67 59 52 47 43 34 31 27 0 1.5 0 0 0 0 0 0 0 0 0 0 0 0 2 17 58 112 150 159 148 122 104 91 81 74 67 59 51 46 38 32 28 1 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 20 54 98 133 149 133 108 90 80 73 66 58 51 42 34 29 7 2.5 0 0 0 0 0 0 a 0 0 0 0 0 0 0 0 0 2 12 35 87 131 141 Ill 92 81 74 66 59 46 38 30 18 3.0 0 0 0 a 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 22 63 120 136 110 91 81 73 66 51 42 31 22 ------------------------------------------------------------------------------------------------------------------------------------ RAINFALL TYPE = III TC = 0.1 MR SHEET I OF 10 Exhibit 5-111, continued: Tabular hydrograph unit discharges (csm/in) for type III rainfall distribution TRVL --------------------------------------------------- HYDROGRAPH TIME (HOURS) - - - - - - - -7------------------------------------------ TIME 11.3 11;. 9 12.1 12.3 12.5 12.7 13.0 13.4 13.8 14.3 15.0 16.0 17.0 18.0 20.0 26.0 (HR) 11 . 0 11.6 12.0 12.2 12.4 12.6 12.8 13.2 13.6 14.0 14.6 15.5 16.5 17.5 19.0 22.0 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.10 * * * TC =0.2 MR * * * IA/P = 0.10 ------------------------------------------------------------------------------------------------------------------------------------ 0.0 27 34 50 119 176 258 448 565 483 358 270 194 137 93 '7 5 65 60 56 52 46 42 38 33 28 24 21 19 17 14 13 11 0 .10 24 30 42 70 103 151 222 372 501 489 402 314 234 128 91 73 64 59 55 49 44 40 35 30 25 22 20 17 15 13 11 0 .20 23 29 39 64 90 131 192 312 438 472 425 351 273 153 101 78 66 61 56 50 45 40 35 30 25 22 20 18 15 13 11 0 .30 21 26 33 48 59 79 114 166 263 380 441 431 378 238 141 96 75 65 60 53 47 42 37 32 26 23 21 18 15 13 11 0 .40 20 25 -32 45 54 71 99 144 224 328 404 422 392 271 165 108 81 68 61 54 48 43 37 32 27 23 21 19 15 14 11 0 .50 18 22 28 38 43 51 64 88 125 191 282 363 402 356 241 151 102 78 66 57 51 44 39 34 28 24 22 19 15 14 11 0 .75 15 18 23 30 33 37 42 50 64 87 125 184 253 359 341 260 177 121 89 67 57 48 42 36 31 26 23 21 16 14 12 0 1.0 12 16 20 25 28 30 33 37 43 53 68 94 135 251 345 330 260 181 125 81 63 52 44 38 33 28 24 21 17 14 12 0 1. 5 8 10 13 17 18 19 21 23 25 27 30 33 38 55 99 179 266 30.8 289 201 124 74 54 45 39 34 29 24 19 15 12 2 2.0 5 7 9 12 13 14 15 16 17 19 20 22 24 29 38 57 99 166 238 284 239 141 75 54 44 38 33 28 21 17 13 6 2.5 2 4 5 7 8 9 10 10 11 12 13 14 16 18 22 26 33 46 75 155 240 264 154 83 56 46 39 34 25 19 14 9 3.0 1 2 3 5 5 6 6 7 8 8 9 10 11 13 15 18 21 25 33 59 118 220 250 147 82 56 45 39 28 22 14 10 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.30 * * * TC @0.2 MR * * * IA/P = 0.30 ------------------------------------------------------------------ +----------------------------------------------------------------- 0.0 a 0 0 17 49 115 297 489 462 379 307 230 167 119 98 86 81 76 72 64 60 55 48 41 36 32 29 26 22 20 17 0 .10 0 0 0 12 37 89 228 402 442 400 338 266 200 131 1C4 89 82 78 73 65 61 56 49 42 36 33 29 26 22 20 17 0 .20 0 0 0 1 a 27 69 175 326 403 401 359 297 182 126 100 88 81 76 69 63 58 51 44 37 34 30 27 23 21 17 0 .30 0 0 0 1 6 20 52 134 262 356 386 368 321 208 140 107 91 83 78 70 64 58 52 45 38 34 31 27 23 21 17 0 .40 0 0 0 1 4 15 40 103 209 307 360 365 336 234 157 116 95 85 79 72 65 59 53 46 39 34 31 28 23 21 17 0 .50 0 0 0 0 0 3 11 30 78 165 260 327 352 305 213 147 111 93 84 75 68 61 55 48 41 35 32 29 23 21 18 0 .75 0 0 0 0 0 1 5 14 37 83 150 220 276 311 264 196 14,4 112 94 80 72 64 56 50 43 37 33 30 24 21 18 0 z 1.0 0 0 0 0 0 0 0 0 2 7 20 48 94 215 299 286 230 171 128 95 81 69 61 54 47 40 35 32 25 22 18 0 (D 1.5 0 0 0 0 0 0 0 0 0 0 0 0 2 13 56 139 224 266 253 186 128 89 71 61 54 48 41 36 29 23 19 3 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 17 58 126 196 245 214 140 89 71 61 54 47 40 32 25 20 9 00 2. 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 5 21 57 145 228 213 136 89 70 60 53 46 35 28 21 13 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 23 78 180 215 145 94 72 61 54 41 32 22 15 - ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.50 * * * TC =0.2 MR * * * IA/P = 0 50 -------------------------------------------------------------------------------------------------------------------------- ;--------- 0.0 0 0 0 0 0 10 110 206 245 245 208 162 137 117 102 96 93 90 85 79 76 71 63 54 48 44 40 36 32 29 25 0 .10 0 0 0 0 0 7 76 163 217 235 217 181 152 122 106 98 94 90 86 80 76 71 64 55 49 45 41 36 32 29 25 0 .20 0 0 0 0 a 0 5 52 126 187 219 218 193 145 119 104 97 93 89 83 78 73 66 58 50 46 42 37 32 30 26 0 .30 0 0 0 0 0 0 3 36 96 156 198 211 199 155 125 108 99 94 90 84 79 74 67 59 51 46 42 38 32 30 26 0 .40 0 0 a 0 0 0 0 ? 24 72 128 175 199 164 147 121 106 98 93 87 81 76 69 61 53 48 44 39 33 30 26 0 .50 0 0 0 0 0 0 0 1 17 54 103 151 183 194 156 127 109 100 95 88 82 76 70 62 54 48 44 40 33 30 26 0 .75 0 0 0 0 0 a 0 0 6 23 52 90 127 174 146 8 146 124 109 100 92 85 78 72 65 56 49 45 41 34 31 26 0 1.0 0 0 0 0 0 0 0 0 0 0 2 11 29 91 149 169 157 135 117 100 92 83 76 69 61 53 48 43 35 32 27 0 1.5 0 0 0 0 0 0 0 0 0 0 0 0 0 7 33 81 128 155 155 130 109 94 83 75 68 60 53 47 39 33 28 2 2.0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 1 10 34 72 112 145 139 114 93 82 74 67 60 52 43 35 29 9 2. 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 12 33 83 126 139 112 92 81 74 67 59 47 38 30 15 3.6 0 0 0 0 0 0 0 1) 0 0 0 - 0 0 0 0 0 0 1 4 21 60 116 133 110 92 81 73 66 51 42 31 22 ------------------ 4----------------------------------------------------------------------------------------------------------------- RAINFALL TYPE = III TC 0.2 MR SHEET 2 OF 10 Exhibit 5-111, continued: Tabular hydrograph unit discharges (esm/in) for type III rainfall distribution TRVL --------------------------------------------------- HYDRCGRAPH TIME (HOURS) - - - - - - - - - - - - - - - - - - - - - - - - - - - - --- - - - - - - - - - - - - - - - - - - - - - T I M E 1 1.3 11.9 12.1 12.3 12.5 12.7 13.0 13.4 13.8 14.3 15.0 16.0 17.0 18.0 20.0 26.0 (MR) 11 . 0 11 .6 12.0 12. 2 12.4 12.6 12.3 13.2 13.6 14.0 14.6 15. 5 16.5 17.5 19.0 22.0 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.10 * * * TC =0.3 MR * * * IA/P = 0.10 ------------------------------------------------------------------------------------------------------------------------------------ 0.0 25 31, 44 84 124 181 287 441 498 451 358 276 204 118 87 70 63 58 54 48 44 39 34 29 24 22 20 17 14 13 11 0 .10 22 28 37 56 74 108 156 244 375 457 453 389 314 180 113 83 69 62 57 51 46 41 36 31 26 23 20 18 15 13 11 0 .20 21 27 35 53 67 94 116 208 319 411 439 406 345 212 130 91 73 64 59 52 46- 42 36 31 26 23 21 18 15 13 11 0 .30 19 24 30 42 49 61 83 118 178 272 365 414 409 305 1@0 121 87 71 63 55 49 43 38 33 27 24 21 19 15 14 11 0 .40 18 23 29 40 46 56 74 103 153 232 321 383 400 329 217 138 96 75 65 57 50 44 38 33 28 24 21 19 15 14 11 0 .50 16 21 26 34 38 43 52 67 91 132 199 280 349 383 297 196 128 91 73 60 53 46 40 35 30 25 22 20 16 14 11 0 .75 14 18 23 30 33 37 43 52 66 91 131 187 251 347 331 260 182 126 92 68 57 49 42 36 31 26 23 21 16 14 12 0 1.0 11 15 18 23 25 28 30 33 38 44 54 71 98 192 296 334 294 221 154 94 69 55 45 40 34 29 25 22 17 15 12 0 1. 5 7 9 1 2 15 17 18 19 21 23 25 27 30 33 45 75 137 222 287 300 233 149 84 57 47 40 35 30 25 20 16 13 3 2.0 4 6 8 11 12 13 14 15 16 17 19 20 ' 22 26 33 46 76 131 201 278 258 165 85 57 46 40 34 29 22 17 13 7 2. 5 2 3 5 7 7 8 9 10 10 11 12 13 14 17 20 24 29 39 60 125 213 260 177 94 60 47 40 35 25 20 14 9 3 . 01 1 2 3 4 5 5 6 6 7 a 8 9 10 12 14 16 19 23 29 48 95 195 247 167 93 60 47 40 29 22 15 10 ------------------------------------------------------------------------------------------------------------------------------------ IA / P = 0. 30 TC =0.3 H R IA/P = 0.30 ------------------------------------------------------------------------------------------------------------------------------------- n . 0 0 0 0 6 22 58 146 308 424 422 367 303 234 145 111 92 84 79 74 67 62 57 50 43 36 33 30 26 22 20 17 0 .10 3 0 0 4 16 44 112 243 364 402 379 328 266 166 120 97 36 80 75 68 62 57 51 44 37 33 30 27 22 21 17 0 0 .20 0 0 0 3 1 2 33 86 190 306 370 376 344 292 189 132 103 89 82 77 69 63 58 51 44 37 34 30 27 23 21 17 0 t:j .30 0 0 0 0 2 8 25 65 149 254 331 361 350 261 175 126 100 88 31 73 66 6b 53 46 39 35 31 28 23 21 18 0 CL .40 0 0 0 0 1 6 19 50 116 208 290 338 346 232 195 138 107 91 83 74 67 60 54 47 40 35 32 28 23 21 18 0 .50 0 0 0 0 0 1 4 14 38 90 168 @50 308 333 256 180 131 103 89 78 71 63 56 49 42 36 33 29 23 21 18 0 .75 G 0 0 0 0 0 2 6 17 43 89 150 213 299 286 220 171 129 104 85 75 65 58 51 44 38 34 30 24 22 18 0 1.0 0 0 0 0 0 0 0 0 1 3 9 24 53 153 253 288 257 200 150 105 85 72 62 55 48 41 36 32 26 22 19 0 1 . 5 0 0 0 0 0 0 0 0 0 0 0 1 2 15 59 138 217 258 248 187 130 91 71 62 55 48 41 36 29 23 19 3 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 9 36 90 159 239 227 158 97 74 63 55 48 42 32 26 20 10 DO 2' . 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 12 37 113 194 224 151 96 73 62 55 48 36 29 21 14 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 24 78 176 211 145 95 73 62 54 41 32 22 15 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.5C * * * TC =0.3 HR * * * IA/P = 0.50 ------------------------------------------------------------------------------------------------------------------------------------- 0.0 0 0 0 0 0 2 33 116 193 221 221 200 165 129 110 99 95 92 87 81 77 72 65 56 49 45 41 37 32 30 25 0 .10 0 0 0 0 0 1 23 85 157 200 214 205 178 138 115 102 96 92 88 82 77 73 66 57 50 46 42 37 32 30 26 0 .20 0 0 0 0 0 1 15 62 125 175 201 203 187 147 121 105 98 94 89 83 78 73 66 58 50 46 42 38 32 30 26 0 .30 0 0 0 0 0 0 0 10 45 99 149 184 197 174 140 117 104 97 93 86 80 75 69 61 52 47 43 39 33 30 26 0 .40 0 0 0 0 0 0 0 7 32 76 125 164 189 179 148 123 1C7 99 94 87 81 76 69 62 53 48 44 39 33 30 26 0 .50 0 0 0 0 0 0 0 0 5 23 59 103 144 18@ 169 141 119 105 98 90 84 78 71 64 55 49 45 41 33 31 26 0 .75 0 0 0 0 0 0 0 - 0 2 9 27 55 89 148 168 156 135 117 105 94 87 80 73 66 58 51 46 42 34 31 27 0 1.0 9 0 0 0 0 0 .0 0 0 0 1 4 14 59 119 157 163 145 126 105 95 85 77 71 63 55 49 44 36 32 27 0 1.5 0 0 0 0 0 0 0 0 0 0 0 0 0 3 i9 56 103 139 151 139 116 97 85 77 70 62 54 48 40 33 28 3 2 .0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 5 21 52 91 135 143 120 96 84 76 69 61 54 44 35 29 11 2.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 7 22 65 112 136 117 96 83 75 68 60 48 39 30 19 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 13 45 102 131 114 95 83 75 67 53 43 31 22 ---------------------------------------------------------- t------------------------------------------------------------------------- RAINFALL TYPE = TII TC = 0.3 MR SHEET 3 OF 10 Exhibit 5-111, continued: Tabular hydrograph unit discharges (csm/in) for type III rainfall distribution TRVL ----------------- ---------------------------------- HYDROGRAPH TIME (HOURS) --------------------------------------------------- TIME 11 .3 11 .9 12.1 12.3 12.5 12.7 13.0 13.4 13.8 14.3 15.0 16.0 17.0 18.0 20.0 26.0 (HR)11.0 11.6 12.0 12.2 1Z.4 12.6 12.8 13.2 13.6 14.0 14.6 15.5 16.5 17.5 19.0 22.0 ----------------------------------------------------------------------------------------------------------------------------- IAIP = 0.10 * * * TC =0.4 HR * * * IA/P = 0.10 ------------------------------------------------------------------------------------------------------------------------------------ 0.0 23 29 39 65 91 132 198 308 422 449 417 345 274 162 108 82 68 61 57 50 45 41 35 30 25 22 20 18 15 13 11 0 .10 20 26 33 48 60 80 114 170 262 368 422 418 370 242 149 102 79 67 60 53 47 42 37 32 27 23 21 18 15 13 11 C .20 20 25 32 45 55 72 100 147 224 320 388 408 383 272 .171 114 85 70 62 54 48 43 37 32 27 23 21 19 15 14 11 0 .30 17 22 28 38 43 51 65 88 127 191 277 351 389 349 244 157 108 81 68 58 51 45 39 34 29 24 22 19 15 14 11 0 .40 1 ? 21 27 36 41 47 59 79 111 165 240 314 378 359 268 178 120 88 72 60 52 45 40 34 29 25 22 20 15 14 11 0 .50 15 19 24 31 34 38 44 54 71 98 142 207 278 364 332 Z43 163 113 84 65 56 48 41 36 31 26 23 20 16 14 12 0 .75 12 16 20 25 27 30 33 38 44 54 70 97 138 249 333 320 257 185 131 85 65 53 44 39 33 28 24 22 17 14 12 0 1.0 11 13 17 22 23 25 28 30 34 38@ 46 57 75 145 245 322 311 255 188 114 77 5a 47 41 .35 30 26 23 Is 15 12 1 1.5 6 9 11 14 15 17 18 19 21 23 25 27 30 39 59 105 180 255 292 257 176 98 61 48 41 36 31 26 20 16 13 4 CP ?.0 4 6 8 10 11 12 13 14 15 16 17 19 20 24 30 39 61 103 166 253 272 189 98 61 48 41 35 36 23 18 13 8 @i 2.5 2 3 4 6 7 7 8 9 10 10 11 12 13 16 18 22 26 34 49 100 183 255 198 108 66 50 42 36 26 20 14 9 17, 3.0 1 1 2 4 4 5 5 6 6 7 8 a 9 11 13 15 18 21 26 40 77 169 243 185 106 65 49 41 30 23 15 10 @j ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.30 * * * TC =0.4 HR * * * IA/P = 0.30 -------------------------------------- f--------------------------------------------------------------------------------------------- 0.0 0 0 0 2 10 30 78 177 306 379 379 347 293 187 133 105 90 82 77 69 63 58 51 44 38 34 30 27 23 21 17' 0 .10 0 0 0 2 7 22 59 138 250 336 365 353 313 212 146 112 94 84 78 71 64 59 52 45 38 34 31 27 23 21 17 0 .20 0 0 0 1 5 17 45 107 202 292 341 349 325 235 162 121 98 87 80 72 65 59 53 46 39 34 31 28 23 21 17 0 .30 0 0 0 0 1 4 12 34 83 162 249 310 336 298 215 152 116 96 85 76 68 61 55 48 41 36 32 29 23 21 18 0 .40 0 0 0 0 0 3 9 26 64 130 209 276 324 307 234 168 125 101 88 77 70 62 55 49 41 36 32 29 23 21 18 0 .50 0 0 0 0 0 0 2 7 19 49 103 173 242 313 285 216 157 119 98 82 73 65 57 51 44 37 33 30 24 22 18 0 .75 0 0 0 0 0 0 1 3 9 23 52 97 153 253 285 253 199 151 118 91 78 68 59 53 46 39 35 31 25 22 18 0 1.0 D 0 0 0 0 0 0 0 0 1 4 13 30 104 204 276 276 226 175 120 92 75 64 57 50 43 37 33 26 22 19 1 1.5 0 0 0 0 0 0 0 0 0 0 0 0 1 8 36 98 177 236 250 207 148 99 75 63 56 49 42 37 29 24 19 4 >. () 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 5 22 62 124 210 232 176 107 78 65 57 50 43 33 27 20 11 2.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 7 24 35 167 219 167 106 77 64 56 49 37 29 21 14 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 15 58 152 207 159 104 76 64 55 42 33 22 15 -------------------------------------------------------------------------------------------------------------------------- 4--------- IA/P = 0.50 * * * TC =0.4 HR * * * IA/P = D.50 ------------------------------------------------------------------------------------------------------------------------------------ C . 0 0. 0 0 0 0 0 10 54 121 182 204 204 191 146 121 106 98 94 90 83 78 73 66 58 50 46 42 38 32 30 26 0 .10 0 0 0 0 0 0 7 38 94 153 187 196 193 155 128 110 100 95 91 84 79 74 67 59 51 46 42 38 32 30 26 0 .20 0 0 0 0 0 0 5 27 71 126 166 187 191 164 134 114 103 96 92 85 80 75 68 60 52 47 43 38 33 30 26 0 - 0 0 102 .10 0 0 0 0 0 3 19 54 145 173 185 155 129 111 101 95 88 82 76 70 62 54 48 44 40 33 31 26 0 .40 0 0 0 0 0 0 0 2 13 40 81 124 157 180 161 135 116 104 97 90 83 77 71 63 55 49 44 40 33 31 26 0 .50 0 0 0 0 0 0 0 0 1 9 30 64 1C4 163 174 154 130 113 102 93 86 79 73 66 57 50 46 42 34 31 27 0 . 75 0 0 0 0 0 0 0 0 0 3 13 32 59 120 157 162 145 126 Ill 98 90 82 75 68 60 52 47 43 35 31 27 0 1.0 0 0 0 0 0 0 0 0 0 0 0 2 6 36 90 138 158 152 135 112 98 88 79 72 65 56 50 45 37 32 27 0 1.5 a 0 0 0 0 0 0 0 0 0 0 0 0 1 10 37 80 121 148 143 123 102 87 78 71 64 56 49 41 34 28 4 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 13 36 71 121 140 126 101 86 78 70 63 55 44 36 29 13 2.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 14 49 97 135 122 100 86 77 70 62 49 40 30 20- 3.0 0 0 0 0 0 0 0 0 0 0 0 . 0 0 0 0 0 0 0 1 9 33 88 130 119 98 85 76 69 54 44 32 22 ------------------------------------------------------------------------------------------------------------------------------------ RAINFALL TYPE = III TC = C.4 HR SHEET 4 OF 10 Exhibit 5-111, continued: Tabular hydrograph unit discharges (csm/in) for type III rainfall distribution TRVL --------------------------------------------------- HYDROGRAPH TIME (HOURS) --------------------------------------------------- TIME 11.3 11.9 12.1 12.3 12.5 12.7 13.0 13.4 13.8 14.3 15.0 16.0 17.0 18.0 20.0 26.0 (MR) 11 .0 11.6 12.0 12.2 12.4 12.6 12.8 13.2 13.6 14.0 14.6 15. 5 16.5 17.5 19.0 22.0 ---------------------------------------------------------------------------------------------------------- 4----------- 4- - - - - - - - - - - - - IA/P = 0.10 * * * TC =0.5 MR * * * IA/P = 0.10 -------------------------------------------------------------------------------------------------------------------------- 4--------- 0.0 21 27 35 54 70 97 144 217 316 397 411 388 330 214 139 99 78 67 60 52 47 42 36 31 26 23 21 18 15 13 11 0 .10 19 24 30 43 50 64 86 125 186 273 355 392 390 296 194 129 94 75 65 56 49 43 38 33 28 24 21 19 15 14 11 0 .20 18 23 29 40 47 58 77 109 161 235 315 367 382 318 218 145 103 80 68 57 50 44 39 33 28 24 22 19 15 14 11 0 .30 16 21 26 34 38 44 53 69 95 139 203 278 337 367 289 199 135 98 77 62 54 46 40 35 30 25 22 20 16 14 11 0 .40 16 20 25 33 36 41 49 62 84 121 176 244 306 358 306 220 151 107 83 614 55 47 41 35 30 25 23 20 16 14 12 0 .50 14 19 22 28 31 35 39 46 57 75 106 152 213 323 346 282 202 140 102 73 59 50 42 37 32 27 23 21 16 14 12 C .75 12 16 20 25 28 30 34 38 45 56 75 104 145 246 319 308 252 187 135 89 67 53 44 39 33 28 24 22 17 14 12 0 1.0 10 12 16 20 22 23 25 28 31 34 39 47 60 110 197 280 309 279 220 138 90 63 49 42 37 31 26 23 18 15 12 1 1.5 6 8 10 13 14 15 17 18 19 21 23 25 27 34 49 82 143 218 283 271 203 116 68 51 43 37 32 27 21 16 13 4 2.0 3 5 7 9 10 11 12 13 14 15 16 17 19 22 27 34 50 82 135 226 265 211 114 67 50 42 37 31 23 18 13 8 2.5 2 3 4 6 7 7 8 9 10 10 11 12 13 16 18 22 26 34 50 102 182 249 197 111 67 50 42 36 26 20 14 9 1 1 2 3 4 4 5 5 6 6 7 8 3 10 12 14 16 19 23 34 63 144 238 201 121 72 52 43 31 23 15 10 3.0 @-3 ------------------------------------------------------------------------------------------------------------------------------------ @0 IAIP = 0.30 * * * TC =0.5 MR * * * IA/P = 0.30 6-1 ------------------------------------------------------------------------------------------------------------------------------------ 0.0 0 0 0 1 4 15 40 101 198 295 145 345 325 232 161 122 100 88 80 72 65 59 53 46 39 34 31 28 23 21 18 0 11 30 77 158 249 313 335 329 253 178 132 106 YI 73 66 0 (D .10 0 0 0 1 3 82 60 53 47 40 35 31 28 23 21 18 .20 0 0 0 0 2 8 23 59 1.25 208 278 316 324 271 196 144 112 95 85 75 67 61 54 47 40 35 32 28 23 21 18 0 .30 0 0 0 0 0 2 6 17 45 98 171 242 291 313 249 182 136 108 92 80 71 63 56 49 42 36 33 29 24 21 18 0 .40 0 0 0 0 0 1 4 13 34 77 140 208 264 304 263 198 148 115 97 81 72 64 57 50 43 37 33 30 24 21 15 0 .50 0 0 0 0 0 0 1 3 10 26 60 113 177 276 295 244 185 140 Ill 88 77 67 59 52 45 39 34 31 24 22 18 0 75 0 0 0 0 0 0 0 1 4 12 29 60 104 204 271 263 222 174 136 101 83 70 61 54 47 40 35 32 25 22 18 0 1.0 0 0 0 0 0 0 0 0 0 1 2 6 16 67 155 235 263 242 198 138 102 80 66 58 51 44 38 34 27 23 19 1 (D 1.5 0 0 0 0 0 0 0 0 a 0 0 0 0 4 22 67 138 205 241 221 167 110 79 66 58 51 44 38 30 24 20 5 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 13 42 93 182 225 191 119 83 67 58 51 44 34 27 21 12 00 2.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 15@ 62 139 213 180 117 82 67 58 51 38 30 22 15 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 110 41 127 203 171 114 81 66 57 43 33 23 16 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.50 * * * TC =0.5 MR * * * IA/P = 0.50 ------------------------------------------------------------------------------------------------------------------------------------- 0.0 0 0 0 0 0 0 3 24 68 124 174 190 190 162 133 114 103 97 92 85 80 75 68 60 52 47 43 39 33 30 26 0 .10 0 0 0 0 0 0 2 17 51 100 149 177 186 169 14C 119 106 99 93 86 81 75 69 61 52 47 43 39 33 30 26 0 .20 0 0 0 0 0 0 1 12 38 79 126 160 181 173 147 124 109 101 95 88 81 76 69 62 53 48 44 39 33 30 26 0 .30 0 0 0 0 0 0 0 1 8 28 62 105 141 .176 165 141 120 107 99 91 84 78 71 64 56 49 45 41 33 31 26 0 .40 0 0 0 0 0 a 0 1 6 20 48 86 123 172 172 146 125 111 101 92 85 79 72 65 56 50 45 41 34 31 26 0 .50 0 0 0 0 0 0 0 0 4 15 37 70 105 157 167 151 130 114 104 94 87 79 73 66 57 50 46 42 34 31 27 0 .75 0 0 0 0 0 a 0 0 0 1 6 17 37 91 139 157 150 134 119 103 93 84 76 69' 62 54 48 44 35 32 27 0 1.0 0 0 0 0 0 0 0 0 0 0 1 3 9 40 91 135 153 149 135 113 99 88 79 72 65 57 50 45 37 32 27 1 1.5 0 0 a 0 0 a 0 0 0 0 0 0 0 0 5 24 59 101 132 144 130 107 90 80 73 65 57 51 41 34 29 6 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 7 25 55 106 138 130 105 89 79 72 65 57 45 37 30 15 2.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 936 81 133 133 104 88 79 71 64 50 41 31 21 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 D 0 0 5 24 74 128 122 103 88 78 70 55 45 32 23 ------------------------------------------------------------------------------------------------------------------------------------ RAINFALL TYPE z Ill TC z 0.5 MR SHEET 5 OF 10 Exhibit 5-111, continued: Tabular hydrograph unit discharges (csm/in) for type III rainfall distribution R VL --------------------------------------------------- HYDROGRAPH TIME (HOURS) --------------------------------------------------- 71ME 11.3 11.9 12.1 12.3 12.5 12.7 13.0 13.4 13.8 14.3 15.0 16.0 17.0 18.0 20.0 26.0 (MR)11.0 11.6 12.0 12.2 12.4 12..6 12.8 13.2 13.6 14.0 14.6 15.5 16.5 17.5 19.0 22.0 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.10 TC =0.75 MR IA/P = 0.10 ------------------- 0.0 17 22 .28 39 45 56 73 104 151 215 281 328 343 310 228 163 121 94 77 63 53 45 39 34 29 25 22 20 15 14 11 0 .10 17 21 27 37 42 51 66 91 131 187 250 302 336 319 247 179 131 101 82 65 55 46 40 35 29 25 22 20 16 14 11 0 .20 15 19 24 31 35 40 48 60 81 114 163 221 275 328 298 229 167 124 96 73 60 49 42 36 31 26 23 20 16 14 12 0 .30 14 18 23 30 33 38 44 55 72 100 142 194 248 320 305 245 182 135 103 76 62 50 42 37 31 27 23 21 16 14 12 0 .40 13 16 2t 26 29 32 36 41 50 65 88 124 171 268 313 288 228 170 127 88 68 54 44 38 33 28 24 21 17 14 12 0 .50 12 16 20 25 28 30 34 39 46 59 78 109 150 244 306 294 242 194 138 94 71 56 45 39 34 28 24 22 17 14 12 0 .75 10 13 16 21 23 25 27 30 33 38 46 58 77 140 221 277 287 248 197 133 92 66 50 42 36 31 26 23 18 15 12 1 1.0 8 10 13 16 18 19 21 23 25 27 30 34 39 61 IC9 181 249 280 265 198 134 85 58 46 40 34 29 25 20 16 12 2 1.5 5 7 9 12 13 14 15 16 17 19 20 22 24 30 40 63 106 167 225 261 226 147 84 58 46 39 34 29 22 17 13 5 2.0 2 4 5 7 8 9 9 10 11 12 13 14 16 18 22 26 34 50 80 155 226 246 158 91 61 47 40 34 25 20 14 9 2.5 1 2 3 5 5 6 6 7 8 8 9 10 11 13 15 18 21 26 34 62 120 209 234 151 90 60 47 39 29 22 15 10@ 17-1 3.0 0 1 2 3 3 3 4 4 5 5 6 7 7 9 10 12 15 17 21 29 50 113 209 224 144 88 59 46 33 25 16 10 ----------------------------------------------------------------------------------------------------------- 4----------------- IA/P = 0.30 * * * TC =0.75 MR * * * IA/P = 0.30 ---------------------------------- +------------------------------------------------------------------------------------- P 0.0 0 0 0 0 1 3 8 24 58 113 182 243 283 287 233 178 139 114 98 83 73 64 56 50 43 37 33 30 24 21 18 0 C/) CD .10 0 0 0 0 0 2 18 45 91 151 212 259 284 245 191 149 120 102 85 75 65 57 50 43 37 33 30 24 21 18 0 .20 0 0 0 0 a 0 1 5 14 35 72 125 183 263 277 230 180 142 116 93 80 68 59 52 45 39 34 31 25 22 18 0 .30 0 0 0 0 0 0 1 3 10 26 57 102 156 245 270 240 192 151 122 96 82 69 60 53 46 39 35 31 25 22 18 0 lm@ n .40 0 0 0 0 0 0 0 1 2 8 20 45 83 182 252 264 226 181 144 108 89 73 62 55 48 41 36 32 26 22 19 0 .50 0 0 0 0 0 0 0 0 2 6 15 35 67 158 235 259 235 192 153 113 92 75 63 56 49 42 36 33 26 22 19 1 75 0 0 0 0- 0 0 0 0 0 0 1 2 7 35 100 178 232 242 217 163 121 90 71 61 54 47 40 35 28 23 19 2 1.0 0 0 0 0 0 0 0 0 0 0 0 1 4 21 68 140 205 236 229 181 135 97 74 63 55 48 41 36 29 24 19 3 CD 1.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 13 42 94 155 221 212 158 103 77 64 56 49 42 33 26 20 10 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 15 42 113 184 209 151 101 76 63 55 48 36 29 21 14 00 2.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 5 27 80 168 199 146 100 75 63 55 41 32 22 15 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 10 56 154 191 151 105 78 64 48 37 24 16 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.50 * * * TC =0.75 MR * * * IA/P = 0.50 ------------------------------------------------------------------------------- ---------------------------------------------------- 0.0 0 0 0 0 0 0 0 3 13 37 71 108 140 167 156 136 120 108 101 92 85 78 72 64 56 50 45 41 34 31 26 0 .10 0 0 0 0 0 0 0 2 10 28 57 91 124 163 158 140 124 Ill 103 94 86 79 72 65 57 50 46 41 34 31 27 0 .20 0 0 0 0 0 0 0 0 1 7 21 45 76 135 159 153 136 120 109 98 90 82 74 67 59 52 47 43 35 31 27 0 .30 0 0 0 0 0 0 0 0 1 5 15 35 62 121 157 157 140 124 112 100 91 83 75 68 60 52 47 43 35 31 27 0 .40 0 0 0 0 0 0 0 0 1 3 11 27 50 107 146 154 143 128 115 102 93 84 76 69 61 53 48 43 35 32 27 0 .50 0 0 0 0 0 0 0 0 0 0 2 8 21 66 118 148 152 139 125A08 97 87 78 71 63 55 49 45 36 32 27 1 .75 0 0 0 0 0 0 0 G 0 0 1 4 10 38 82 122 142 144 133 116 103 91 80 73 66 58 51 46 37 32 28 1 1.0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 24 60 102 132 142 133 116 99 86 77 70 62 55 49 40 33 28 3 1.5 0 0 0 0 0 0 0 0 0 0 o 0 0 0 1 7 25 55 91 128 136 119 98 85 77 69 62 54 44 36 29 11 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 9 25 66 109 131 116 97 85 76 69 61 48 39 30 la 2.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 16 47 100 127 114 96 84 75 68 53 43 31 22 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 10 44 102 124 112 95 83 75 59 47 33 23 ------------------------------------------------------------------- ------------------------------ +--------------------------------- RAINFALL TYPE = III TC = 0.75 MR S H E E 7111W F. l1j= Exhibit 5-111, continued: Tabular hydrograph unit discharges (csm/in) for type III rainfall distribution TRVL - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - HYDROGRAPH TIME (HOURS) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - TIME 11 .3 11.9 12. 1 12.3 12.5 12 . 7 13.0 13.4 13.8 14.3 15.0 16.0 17.0 18.0 20.0 26.0 (HR) 11 .0 11 .6 12.0 12.2 12.4 12.6 12.8 13. 2 13.6 14.0 14.6 15.5 16.5 17.5 19. G 22.0 ------------------------------------------------------ 4----------------------------------------------------------------------------- IA/F = 0.10 * * * TC =1 .0 H, R * * * IA/P = 0.10 ------------------------------------------ 4----------------------------------------------------------------------------------------- 0.0 15 19 24 32 37 44 54 71 98 136 161 227 264 297 270 215 164 128 103 78 64 52 43 36 31 26 23 21 16 14 1 2 0 .10 13 17 22 28 31 35 41 49 64 87 120 161 2G5 273 289 254 201 155 122 90 71 56 45 3E 33 28 24 21 1 7 14 1 2 0 .20 13 16 21 27 29 33 38 46 58 77 1C5 142 184 257 285 263 214 167 130 95 74 57 46 39 3@ 28 24 22 1 7 14 12 0 . 30 12 16 20 26 28 31 36 42 53 69 93 126 165 240 279 268 225 178 139 100 77 59 47 39 34 29 25 22 17 1 5 12 1 .40 11 14 13 23 25 27 30 34 40 48 62 83 112 185 251 276 256 213 163 118 87 65 50 41 35 30 26 23 1 8 1 5 12 1 .50 11 13 17 22 24 26 29 32 37 45 56 74 99 167 235 270 261 223 179 126 9? 67 51 42 36 31 26 23 18 15 12 1 .75 8 10 13 17 18 19 21 23 25 28 31 36 44 72 122 186 239 258 243 189 136 90 62 48 40 34 29 25 20 1 6 1 ? 2 1 .0 6 9 11 14 15 17 1B 20 21 23 25 28 32 46 75 124 185 234 253 226 170 110 71 53 43 37 31 27 21 1 6 1 3 4 1.5 4 6 8 10 11 12 13 14 15 16 17 19 21 25 32 46 74 11 @ 170 230 239 179 108 70 52 43 36 31 23 1 8 13 7 2.0 2 3 4 6 7 7 8 9 10 10 11 12 13 16 18 22 28 38 58 111 179 228 185 116 75 54 44 37 27 21 14 9 2. 5 1 1 2 4 4 5 5 6 6 7 8 8 9 11 13 15 18 22 28 46 @7 167 219 176 113 73 54 43 31 23 15 10 ".0 0 0 1 2 2 2 3 3 3 4 4 5 5 7 8 10 12 14 16 21 32 68 156 210 179 1 20 78 56 37 27 16 11 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - --- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - IA/P = 0.30 * * * TC =1 .0 HR * * * IA/P = 0.30 ------------------------------------------------------------------------------------------------------------------------------------ C.0 0 0 0 0 0 1 5 13 30 57 95 141 1E6 243 249 213 174 142 119 97 83 70 60 53 46 39 35 31 25 22 18 0 Co .10 0 0 0 0 0 1 3 10 23 46 79 120 164 230 245 221 183 150 125 101 a5 72 61 53 46 40 35 31 25 22 18 0 .20 0 0 0 0 0 0 1 3 7 18 36 65 162 183 233 241 210 174 144 112 92 76 64 56 48 42 36 33 26 22 1; 1 .30 0 0 0 0 0 0 1 2 6 14 29 53 86 163 2 2 1 237 2 17 183 1 51 117 95 78 45 5 56 49 42 37 33 26 22 19 1 .40 0 0 0 0 0 0 0 0 1 4 11 23 43 IC7 18 C. 225 233 207 175 133 1 C, 5 @4 68 59 51 44 3@ 34 27 23 19 1 .50 0 0 0 0 0 0 0 0 1 3 3 18 34 91 162 214 23C 213 183 139 109 86 70 60 52 45 39 34 27 23 19 1 .75 0 0 0 0 0 0 0 a 0 0 1 4 Q ;33 e 2 145 196 218 211 174 135 101 77 f, 4 56 48 42 37 29 24 19 3 1.0 0 0 0 0 0 0 0 0 0 0 0 1 2 11 37 85 144 192 214 199 160 116 85 69 59 51 44 35 30 25 20 5 1 .5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 7 23 56 1 C 4 174 2 C 3 177 123 89 71 60 52 45 35 27 21 11 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 3 24 73 139 194 169 120 87 70 59 51 39 30 22 14 2 . 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 C 1 3 15 51 127 186 162 117 86 69 59 44 34 23 16 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 6 35 117 180 164 122 90 71 51 39 25 16 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.50 * * * TC =1 .0 HR * * * IAIP = 0.50 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - *- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 0.0 0 0 0 0 0 0 0 2 6 17 34 57 e3 127 151 142 130 118 1C9 99 91 83 75 68 59 52 47 43 35 31 27 1 .10 0 0 0 0 0 0 0 1 5 13 27 47 71 11 7 146 144 133 121 112 101 92 84 76 68 60 53 48 43 35 32 27 1 .20 0 0 0 0 0 0 0 1 3 10 21 38 60 106' 138 143 135 124 114 102 94 85 76 69 61 54 48 44 35 32 27 1 .30 0 0 0 0 0 0 0 0 0 2 7 16 31 73 114 139 142 132 121 108 q 8 88 79 71 64 56 50 45 36 32 27 1 .40 0 0 0 0 0 0 0 0 0 2 5 13 25 62 104 133 140 134 124 110 99 89 80 72 t 4 56 50 45 37 32 27 1 .50 0 0 0 0 0 0 0 0 0 0 1 4 10 35 74 112 134 13 8 131 117 1G4 93 82 74 67 59 52 47 38 33 28 2 .75 0 0 0 0 0 0 0 0 0 0 0 2 5 19 48 7 -' 115 131 134 123 110 97 85 77 69 61 54 48 39 33 28 3 1.0 0 0 0 0 0 0 0 0 0 0 0 0 1 6 21 49 84 113 129 132 119 103 89 80 72 64 56 50 4 '1 34 28 5 1 .5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 7 21 46 75 113 12 8 120 102 88 79 71 63 56 45 37 29 12 2.0 0 0 0 0 0 0 0 0 0 0 0 9 0 0 0 0 1 4 14 42 82 119 124 104 90 80 72 64 50 41 31 20 2.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 9 Z 9 75 117 121 102 89 79 71 56 45 32 23 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 0 1 5 28 80 113 118 101 88 79 63 49 34 24 - ---- - ---- ---- --- - ---- -- -- ---- ---- --- - - --- - -- - - -- - - -- - - - -- --- - - -- -- ---- ---- - - - - --- ---- -- ----- - ------- - - -- ---- - -- - - ---- - -- - ---- - -- - -- RAINFALL TYPE = III TC = 1 .0 HR SHEET 7 OF 10 Exhibit 5-111, continued: Tabular hydrograph unit discharges (csm/in) for type III rainfall distribution TRVL --------------------------------------------------- HYDROGRAPH TIME (HOURS) ---------------------------------------------------- I Ilm E 11.3 11.9 12.1 12.3 12.5 12. 7 13.0 13.4 13.8 14.3 15.0 16.0 17.0 18.0 20.0 26.0 (HR)11.0 11.6 12.0 12.2 12.4 12.6 12.8 13.2 13.6 14.0 14.6 15.5 16.5 17.5 19.0 22.0 ------------------------------------------------------------------------------------------------------------------------------------ IAIP = 0.10 * * * TC =1.25 MR * * * IA/P = 0.10 ------------------------------------------------------------------------------------------------------------------------------------ 0.0 13 17 2 2 28 32 37 44 56 75 100 133 170 206 255 264 236 194 155 125 95 75 59 47 39 33 28 24 22 17 14 12 1 .10 13 16 21 27 30 34 41 51 67 89 118 152 188 243 261 243 204 164 133 100 79 61 48 40 34 29 25 Z 2 17 15 12 1 .20 11 15 1 E, 24 26 29 33 38 47 60 79 105 137 203 248 256 232 193 156 115 88 67 51 42 35 30 26 23 18 15 12 1 .30 11 14 18 23 25 27 31 3 o@ 43 54 71 94 122 187 237 254 238 203 165 121 92 69 53 43 36 30 26 23 18 15 12 1 .40 10 12 16 20 22 24 26 29 34 40 49 64 84 140 201 242 250 228 193 142 106 77 57 46 38 32 Z 7 24 19 15 12 1 . 5G 9 12 15 19 21 23 25 28 32 37 45 58 75 126 1E6 232 248 233 201 150 111 80 58 47 39 33 28 24 19 15 12 2 .75 8 11 14 17 19 20 22 24 27 31 36 44 56 93 144 196 230 237 220 174 131 91 64 50 41 34 29 25 20 16 12 2 1 .0 6 8 11 14 15 16 17 19 20 22 25 28 32 46 74 119 170 213 234 218 174 120 79 58 46 38 32 27 21 17 13 4 1 .5 3 5 7 9 9 10 11 12 13 14 16 17 18 22 27 38 58 91 134 197 223 194 129 83 60 47 39 33 24 19 14 7 2.0 2 3 4 6 6 7 8 8 9 10 11 12 13 15 18 22 27 38 57 106 166 214 184 124 82 59 47 39 28 21 14 9 2 . 5 1 1 2 3 3 4 4 5 5 6 7 7 8 10 11 13 16 19 24 38 68 137 206 186 130 87 62 48 33 24 15 10 '7' 3.0 0 0 1 2 2 2 2 3 3 4 4 5 5 6 8 9 11 13 16 21 31 66 145 200 178 126 85 61 39 28 17 11 ---------- 4-------------------------------------------------------------------------------------------------------------------------- @d IA/P = 0.30 TC =1.25 HR IA/P = 0.30 61 ------------------------------------------------------------------------------------------------------------------------------------- 0.0 0 0 0 0 0 1 2 7 18 35 61 94 130 192 222 218 191 161 136 110 93 77 65 56 48 41 36 32 26 22 19 1 .10 0 0 0 0 0 1 2 5 14 28 50 79 113 177 214 219 197 168 142 115 96 79 66 57 49 42 37 33 26 22 19 1 .20 0 0 0 0 0 0 1 4 10 22 41 66 97 162 205 217 202 175 149 119 99 81 67 58 50 43 37 33 26 23 19 1 .30 0 0 0 0 0 0 0 1 3 8 17 33 55 115 174 208 214 195 168 133 108 87 70 60 52 45 39 34 27 23 19 2 .40 0 0 0 0 0 0 0 1 2 6 14 26 45 100 159 200 212 199 174 138 112 89 72 61 53 45 39 35 28 23 19 2 .50 0 0 0 0 0 0 0 0 1 2 5 11 21 60 116 170 203 209 192 156 124 97 76 64 55 47 41 36 29 24 19 3 75 0 0 0 0 0 0 0 0 0 1 2 5 11 35 79 131 175 201 201 172 140 107 82 67 58 50 43 37 30 24 20 4 1.0 0 0 0 0 0 0 0 0 0 0 0 0 1 6 23 57 105 153 136 198 172 131 95 75 63 54 47 41 32 25 20 7 1 .5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 8 24 54 96 157 139 174 127 94 74 63 54 46 35 28 21 12 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 9 24 69 127 182 167 124 93 74 62 53 40 31 22 15 2. 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 10 35 99 176 167 129 96 76 63 46 35 23 16 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 6 34 107 171 161 125 94 75 53 40 25 17 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - !A/P = 0.50 * * * TC =1.25 MR IA/P = 0.50 ------------------------------------------------------------------------------------------------------------------------------- C . 0 0 0 0 0 0 0 0 1 4 10 21 36 55 95 123 138 131 122 114 104 95 86 78 70 62 55 49 44 36 32 27 1 .10 0 0 0 0 0 0 0 b 1 3' 8 16 30 66 102 125 134 128 120 108 99 89 80 73 65 57 51 46 37 32 28 2 .20 G 0 a 0 0 0 0 0 0 2 6 13 24 57 94 120 132 130 122 110 1CI 91 81 73 66 58 51 46 37 33 28 2 30 0 0 G 0 0 0 0 0 1 4 10 19 49 85 113 131 131 124 112 102 92 82 74 66 58 52 47 38 33 28 2 4 C1 0 0 0 0 0 0 0 0 0 1 3 8 16 42 76 106 126 130 125 114 1C4 93 83 75 67 59 52 47 38 33 28 3 .50 0 0 0 0 0 0 0 0 0 0 1 2 6 22 51 84 112 127 129 120 109 97 86 77 70 61 54 49 40 33 28 4 . 7 K, 0 0 0 0 0 0 0 0 0 0 0 1 3 12 32 61 91 113 125 123 114 101 89 80 72 64 56 50 41 34 28 5 1.0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 7 22 47 76 102 122 124 111 96 85 76 69 61 54 43 36 29 9 1 . C 1, 0 0 0 0 0 0 0 0 0 0 0 0 C 0 2 8 22 43 82 111 121 109 95 84 76 68 60 48 39 30 16 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 9 30 63 104 118 1C7 94 83 75 67 53 43 31 21 2.S 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 6 20 58 104 116 106 93 83 74 59 47 33 23 1.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 D 3 19 64 104 114 104 92 82 65 52 35 24 --------------------------------------------------------- RAINFALL TYPE = III TC = 1.25 MR SHEET 8 OF 10 Exhibit 5-111, continued: Tabular hydrograph unit discharges (csm/in) for type III rainfall distribution TRVL --------------------------------------------------- HYDROGRAPH TIME (HOURS) --------------------------------------------------- TIME 11.3 11.9 12.1 12.3 12.4 12.5 12.6 12.7 12.8 13.0 13.2 13.4 13.6 13.8 14.0 14.3 14.6 15.0 15. 5 16.0 16.5 17.0 17.5 18.0 19.0 20.0 22.0 26.0 (HR)11.0 11.6 12.0 12.2 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.10 * * * TC =1.5 HR * * * IA/P = 0.10 ------------------------------------------------------------------------------------------------------------------------------------ 0.0 12 15 19 25 27 31 37 45 57 75 97 122 151 203 231 238 213 132 150 115 91 70 54 44 37 30 26 23 18 1 5 12 1 .10 10 13 17 21 23 26 29 34 41 52 67 87 111 165 210 233 227 205 173 131 102 77 58 46 39 32 27 24 19 15 12 1 .20 10 13 16 21 23 25 28 32 38 47 61 78 100 152 199 228 231 210 181 138 1C7 80 59 47 39 33 28 24 19 1 5 12 2 .30 9 12 15 20 22 24 27 30 36 44 55 70 90 139 188 221 228 215 188 145 112 83 61 48 40 53 28 24 19 1 5 12 2 .40 5 11 14 18 19 21 23 25 29 3 7@ 40 50 64 103 152 196 223 226 2C8 166 127 92 66 52 42 35 30 25 20 16 13 2 .50 8 10 13 17 18 20 22 24 27 31 37 46 58 93 140 186 216 224 212 173 133 96 69 53 43 36 30 26. 20 16 13 3 .75 6 8 11 14 15 16 18 19 21 23 26 31 36 55 87 130 173 205 217 202 165 119 81 60 48 39 33 28 21 17 13 4 1.0 5 6 8 11 12 13 14 15 16 18 19 21 24 31 46 71 109 151 189 214 2CO 153 102 72 55 44 37 31 23 18 13 6 NO 1 .5 3 4 5 7 8 9 10 11 11 12 14 15 16 19 24 31 45 69 103 159 2C7 207 147 99 71 54 44 36 26 20 14 8 2.0 1 2 3 5 5 6 6 7 8 9 9 10 11 13 16 19 23 31 45 81 132 189 199 142 97 69 53 43 30 22 15 10 2 . 5 0 1 1 2 3 3 4 4 4 5 6 6 7 8 10 12 14 17 20 31 53 107 179 194 147 102 73 55 36 26 16 10 3.0 0 0 1 1 1 2 2 2 3 3 3 4 4 5 7 8 10 11 13 18 26 51 116 178 188 142 100 71 43 30 18 11 ---------------------------------------------------------------------- 4------------------------------------------------------------- - It I IA/P = 0.30 TC =1.5 HR IA/P = 0.30 61 ------------------------------------------------------------------------------------------------------------------ *----------------- Pi C.0 0 0 0 0 0 1 2 5 11 22 38 59 e4 138 180 200 195 176 154 125 105 86 71 60 52 44 39 34 27 23 19 2 0 0 0 0 1 4 9 18 31 50 99 149 184 198 190 170 139 115 93 75 63 55 47 40 35 28 23 19 3 .10 0 0 0 .20 0 0 0 0 0 0 0 1 3 7 14 25 41 36 137 176 195 192 175 144 119 95 76 64 55 47 41 36 28 24 19 3 .30 0 0 - 0 0 0 0 0 0 1 2 5 11 21 53 100 147 181 194 187 159 130 103 81 68 5 8 50 43 37 29 24 19 4 .40 0 0 0 0 0 0 0 0 0 2 4 9 17 45 88 136 172 192 189 164 135 106 83 69 59 51 43 38 30 24 20 4 .50 0 0 0 0 0 0 0 0 0 0 1 3 7 23 56 101 145 177 190 177 149 116 89 73 62 53 45 39 31 25 20 6 .75 0 0 0 0 0 0 0 0 0 0 0 1 3 13 35 71 113 151 176 184 162 128 97 77 65 55 48 41 32 26 20 7 1.0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 8 24 53 92 132 174 182 153 114 88 72 61 52 45 34 27 21 10 1 .5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 9 24 50 103 152 175 148 112 87 71 60 51 38 30 22 14 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 6 24 62 127 170 151 116 89 73 61 45 34 23 16 2.5 0 0 0 0 0 0 0 0 0 0 0 0 a 0 0 0 0 0 0 4 16 58 131 165 146 113 88 72 52 39 25 16 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 16 67 134 161 142 111 87 60 44 27 17 ------------------------------------------------------------------------------------------------------------------------------------ IA/P = 0.50 * * * TC =1 .5 HR * * * IA/P = 0.50 ------------------------------------------------------------------------------------------------------------------------------------ 0.0 0 0 0 0 0 0 0 1 2 6 13 22 34 65 +94 114 129 122 117 108 100 91 81 74 66 58 52 46 38 33 28 2 .10 0 0 0 0 0 0 0 0 0 2 5 10 18 42 73 99 116 126 121 112 104 94 84 76 68 60 53 48 39 33 28 3 .20 0 0 0 0 0 0 0 0 0 1 4 8 15 36 65 93 112 123 122 113 105 95 85 77 69 61 54 48 39 34 28 4 .30 0 0 0 0 0 0 0 0 0 0 1 3 6 20 44 72 97 114 122 118 109 99 88 79 71 63 56 50 41 34 28 5 .40 0 0 0 0 0 0 0 0 0 0 1 2 5 16 38 65 91 110 121 119 110 100 89 80 72 64 57 51 41 34 29 5 .50 0 0 0 0 0 0 0 0 0 0 0 1 4 13 33 59 85 105 118 120 112 101 90 81 73 65 57 51 41 35 29 6 .75 0 0 0 0 0 0 0 0 0 0 0 1 2 7 20 41 66 89 107 118 115 105 93 83 75 67 60 53 43 35 29 8 1.0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 14 31 53 78 106 117 113 100 89 80 72 64 57 46 37 30 12 1.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 5 14 29 60 91 115 111 99 88 79 71 63 50 41 31 18 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 5 20 45 85 113 109 98 87 78 70 56 45 32 22 2.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 13 42 87 111 107 97 86 78 62 49 34 24 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 9 39 8.2 109 109 98 87 70 56 37 25 ------------------------------------------------------------------------------------------------------------------------------------ RAINFALL TYPE = III TC = 1.5 MR SHEET 9 OF 10 @41 Exhibit 5-111, continued: Tabular hydrograph unit discharges (csm/in) for type III rainfall distribution 00 TRVL -------- 7------------m----------------------------- HYDRCGRAPH TIME (HOURS) ----------------------------------------- m--------- TIME 11.3 11.9 12.1 12.3 12.5 12.7 13.0 13.4 13.8 14.3 15.0 16.0 17.0 18.0 20.0 26.0 (HR)l 1 .0 11.6 12.0 12.2 12.4 12.6 12.8 13.2 13.6 14.0 14.6 15.5 16.5 17.5 19.0 22.0 ----------------- m -------------------------------------------------------------------------------------------------------------- IA/P = 0.10 * * * TC =2.0 MR * * * IA/P = 0.10 -------------------------------------------------------------------------- --------------------------------- m ---------------------- 0.0 9 11 15 19 21 23 27 31 39 48 60 75 91 129 164 187 200 191 178 147 119 92 69 55 45 37 31 26 20 16 13 3 .10 8 10 13 17 18 20 22 25 29 36 44 55 68 101 139 170 189 197 188 163 112 101 75 59 47 39 33 28 21 17 13 3 .20 7 10 13 16 18 19 21 24 28 33 40 50 62 93 129 162 185 195 190 168 137 104 77 60 48 40 33 28 21 17 13 4 .30 7 9 12 15 17 18 20 23 26 31 37 46 56 85 120 154 179 193 191 172 142 108 80 62 49 41 34 29 21 17 13 4 .40 6 8 11 14 15 16 1B 19 22 25 29 34 42 64 94 129 161 183 192 183 157 120 87 66 53 43 36 30 22 17 13 5 .50 6 8 10 13 14 16 17 19 21 23 27 32 38 58 87 121 153 177 191 185 162 124 90 68 54 44 36 31 22 18 13 5 .75 5 6 8 11 12 13 14 15 16 18 20 23 26 37 55 81 113 144 169 186 179 147 106 78 61 49 40 33 24 19 14 6 1.0 4 5 7 9 10 11 12 13 14 15 17 18 20 27 38 56 82 113 143 176 185 164 121 88 67 53 43 36 26 20 14 7 1. 5 2 3 4 5 6 7 7 8 9 10 10 11 12 15 18 23 31 45 65 106 148 180 166 126 92 69 55 44 31 23 15 9 2.0 1 1 2 3 4 4 5 5 6 6 7 8 8 10 12 14 18 23 31 52 87 139 176 160 122 90 68 54 36 26 16 10 2.5 0 0 1 2 2 2 2 3 3 4 4 5 5 6 7 9 11 13 16 22 36 71 132 172 161 126 94 71 45 31 18 11 3.0 0 0 0 1 1 1 1 1 2 2 2 3 3 4 5 6 7 9 10 14 19 35 78 136 168 156 123 92 54 36 20 11 -------------------------------------------------------- ---------------------- ----------- m---------------------------------------- IA/P = 0.30 * * * TC =2.0 MR * * IA/P = 0.30 ----------------- 7 --------------------------------------------------------------------------------------------------------------- 0.0 0 0 0 0 0 0 1 2 6 11 18 29 4 1 75 111 140 159 170 163 145 124 103 84 70 60 51 44 39 30 25 20 4 (D .10 . 0 0 0 0 0 0 0 1 2 4 9 15 24 50 84 118 145 160 167 155 134 110 69 74 63 54 46 40 31 25 20 5 .20 0 0 0 0 0 0 0 0 1 3 7 12 20 43 76 110 138 157 165 157 138 113 91 75 64 55 47 41 32 26 20 5 .30 0 0 0 0 0 0 0 0 1 3 5 10 17 38 68 101 131 152 164 159 141 116 93 77 65 56 48 41 32 26 20 6 .40 0 0 0 0 0 D 0 0 0 1 2 4 8 22 45 76 109 137 155 163 151 125 99 81 68 58 50 43 33 26 20 7 .50 0 0 (3 0 0 0 0 0 0 1 1 3 7 18 39 69 101 130 151 162 153 128 101 83 69 59 51 44 34 27 ZO 7 .75 0 0 0 0 0 0 0 0 0 0 0 1 2 6 17 36 63 93 122 151 158 143 114 92 76 64 55 47 36 28 21 9 1.0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 7 18 37 63 93 132 157 153 125 100 82 68 58 50 38 29 21 11 1.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 12 26 59 100 142 154 128 102 83 70 59 44 34 23 15 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 5 18 43 93 142 150 125 101 82 69 50 38 24 16 00 2.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 12 41 98 141 147 122 99 81 58 43 26 17 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 8 38 92 135 144 124 102 69 50 30 18 ---------------------------------------- ------------ M------------------------- IA/P = 0.50 TC =2.0 MR iA/P = 0.50 ----------------------------------------------------------------------------------------------------------------------------- 0.0 0 0 0 0 0 0 0 0 1 3 6 11 16 33 54 75 91 102 114 114 103 96 87 79 72 64 57 51 41 35 29 6 .10 0 0 0 0 0 0 0 0 1 2 5 9 14 29 49 70 87 99 106 113 104 97 88 80 72 65 58 52 42 35 29 6 .20 0 0 0 0 0 0 0 0 0 1 2 4 7 18 34 54 74 90 101 112 1C7 99 90 82 75 67 60 53 43 36 29 8 .30 0 0 0 0 0 0 0 0 0 0 1 3 6 1 5 30 49 69 36 98 111 1 C- 8100 91 83 75 68 60 54 43 36 29 8 .40 0 0 c 0 0 0 0 0 0 0 0 1 2 8 19 35 55 73 89 105 110 103 94 36 78 70 62 56 45 37 30 10 .50 0 0 0 0 0 0 0 0 0 0 0 1 2 6 16 31 50 69 85 102 109 104 95 86 78 71 63 56 45 37 30 11 .75 0 0 0 0 0 0 0 0 0 0 0 0 1 4 10 21 37 55 73 93 107 107 97 89 81 73 65 58 47 38 30 13 1.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 7 15 29 46 72 93 107 103 94 86 78 70 62 50 40 31 16 1.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 7 15 34 59 F9 105 101 93 35 77 69 55 44 32 21 2.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 3 10 25 55 90 104 100 92 34 76 61 49 34 23 2.5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 7 24 59 91 103 99 91 8,3 63 54 36 25 3.0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 7 28 62 91 101 98 90 75 60 39 26 ------------- ------------ RAINFALL TYPE = III TC 2.0 MR SHEET 10 OF 10 Chapter 6: Storage volume for detention basins As rural areas become urbanized, the resulting This chapter contains a manual met .hod for quick increases in peak discharges can adversely affect estimates of the effects of temporary detention on downstream flood plains. Increasingly, planners, peak discharges. The method is based on average developers, and the public want these downstream storage and routing effects for many structures. areas to be protected. Many local governments are adopting ordinances to control the type of Figure 6-1 relates two ratios: peak outflow to peak development and its allowable impacts on the inflow discharge (q,,/qi) and storage volume to runoff watershed. One of the most common controls volume (Vs/Vr) for all four rainfall distributions. requires that postdevelopment discharges do not exceed present-condition discharges for one or more The relationships in figure 6-1 were determined on storm frequencies at specified points along 4 channel. the basis of single stage outflow devices. Some were controlled by pipe flow, others by weir flow. This chapter discusses ways to manage peak Verification runs were made using multiple stage discharges by delaying runoff. It also presents a outflow devices, and the variance was similar to that procedure for estimating the storage capacity in the base data. The method can therefore be used required to maintain the peaks within a specified for both single- and multiple-stage outflow devices. level. The only constraints are that (1) each stage requires a design storm and a cornputation of the storage Efforts to reduce the effects of increased runoff from required for it and (2) the discharge of the upper urban areas have been innovative and diverse. Many stage(s) includes the discharge of the lower stage(s). methods have been used effectively, such as infiltration trenches, porous pavement, rooftop The brevity of the procedure allows the planner to storage, and cisterns. But these solutions can be examine many combinations of detention basins. expensive or require site conditions that cannot be When combined with the Tabular Hydrograph provided. method, the procedure's usefulness is increased. Its principal use is to develop preliminary indications of The detention basin is the most widely used measure storage adequacy and to allocate control to a group for controlling peak discharge. It is generally the of detention basins. It is"also adequate, however, for least expensive and most reliable of the measures final design of small detention basins. that have been considered. It can be designed to fit a wide variety of sites and can accommodate multiple- outlet spillways to meet requirements for multifrequency control of outflow. Measures other than a detention basin may be preferred in some locations; their omission here is not intended to discourage their use. Any device selected, however, should be assessed as to its function, maintenance needs, and impact. Estimating the effect of storage When a detention basin is installed, hydraulic routing procedures 'can be used to estimate the effect on bydrographs. Both the TR-20 (SCS 1983) and DAMS2 (SCS 1982) computer programs provide accurate methods of analysis. Programmable calculator and computer programs are available for routing hydrographs through dams. (210-VI-TR-55, Second Ed., June 1986). 6-1 Input requirements and procedures Estimating V, Use worksheet 6a to estimate V, storage volume Use figure 6-1 to estimate storage volume (Vs) required, by the following procedure. required or peak outflow discharge (qo). The most frequent application is to estimate V, for which the 1. Determine %. Many factors may dictate the required inputs are runoff volume (VA qO, and peak selection of peak outflow discharge. The most inflow discharge (q). To estimate qo, the required common is to limit downstream discharges to a inputs are V, V,, and qj. desired level, such as predevelopment discharge. Another factor may be that the outflow dev has already been selected. 2. Estimate qi by procedures in'chapters 4 or 5. Do not use peak discharges developed by any other procedure. When using the Tabular Hydrograph method to estimate qi for a subarea, only use .6 IS, N .4 E 0 > Types II & III Cr 4- 4- 0 3 0 " I 4-@ V@ pes I & IA .2 .2 .3 .4 .5 .6 .7 .8 Peak outflow discharge (LO Peak inflow discharge qi 7 Ty 1% 94 Figure 6-I.-Approxi mate detention basin routing for rainfall types 1, 1A, 11, and Ill. 6-2 (210-VI-TR-55, Second Ed., June 1986) peak discharge associated with Tt = 0. 5. From steps 3 and 4, compute q,,: 3. Compute q,/qi and determine V,/V,. from figure q [Eq. 6-31 6- 1. qO = qi " 4. Q (in inches) was determined when computing qi G10) in step 2, but now it must be converted to the 6. Proportion the outflow device so that the stage at units in which V, is to be expressed-most likely, q, is equal to the stage corresponding to Vs. If qO acre-feet or cubic feet. The most common cannot be calibrated except in discrete steps (i.e., conversion of Q to V, is expressed in acre-feet: pipe sizes), repeat the procedure until the stages for qO and Vs are approximately equal. Vr = 53.33Q(AM) [Eq. 6-1] where Limitations V, = runoff volume (acre-ft), Q = runoff (in), An = drainage area (mi2), and This routing method is less accurate as the qo/qi 53.33 = conversion factor from in-mi2 to acre-ft. ratio approaches the limits shown in figure 6-1. 5. Use the results of steps 3 and 4 to compute Vs: The curves in figure 6-1 depend on the relationship between available storage, outflow VS = Vr(yv@) [Eq. 6-21 device, inflow volume, and shape of the inflow hydrograph. When storage volume (V,) required is where V, = storage volume required (acre-ft). small, the shape of the outflow hydrograph is 6. The stage in the detention basin corresponding to sensitive to the rate of rise of the inflow Vs must be equal to the stage used to generate hydrograph. Conversely, when V, is large, the qO. In most situations a minor modification of the inflow hydrograph shape has little effect on the outflow device can be made. If the outflow device outflow hydrograph. In such instances, the outflow has been preselected, repeat the calculations with hydrograph is controlled by the hydraulics of the a modified q, value. outflow device and the procedure therefore yields consistent results. When the peak outflow discharge (q,) approaches the peak inflow Estimating qO discharge (qi), parameters that affect the rate of rise of a hydrograph, such as rainfall volume, Use worksheet 6b to estimate q, required peak curve number, and time of concentration, become outflow discharge, by the following procedure. especially significant. 1. Determine Vs. If the maximum stage in the The procedure should not be used to perform final detention basin is constrained, set V, by the design if an error in storage of 25 percent cannot maximum permissible stage. be tolerated. Figure 6-1 is biased to prevent 2. Compute Q (in inches) by the procedures in undersizing of outflow devices, but it may chapter 2, and convert it to the same units as V, significantly overestimate the required storage (see step 4 in "Estimating Vs"). capacity. More detailed hydrograph development 3. Compute V,/V, and determine q,,/qi from figure and routing will often pay for itself through 6-1. reduced construction costs. 4* Estimate qj by the procedures in chapters 4 or 5. Do not use peak discharges developed by any other method. When using the Tabular method to estimate qi for a subarea, use only the peak discharge associated with Tt = 0. (210-VI-TR-55, Second Ed., June 1986) 6-3 Examples Using V, 5.9 acre-ft (figure 6-2, step 9) and the elevation-storage curve, the maximum stage (EYnaX 105.7 ft. Four examples illustrate the use of figure 6-1. Examples 6-1 through 6-4, respectively, show The rectangular weir equation is estimation of V., use of a two-stage structure, estimation of %, and use with the Tabular qO = 3.2 L,Hw-5 [Eq. ME Hydrograph method. where Example 6-1: Estimating V, single-stage structure % = peak outflow discharge (cfs), Lw = weir crest length (ft), and A development is being planned in a 75-acre Hw = head over weir crest (ft). (0.117-mi2) watershed that outlets into an existing concrete-lined channel designed for present Hw and qO are computed as follows: conditions. If the channel capacity is exceeded, damages will be substantial. The watershed is in the Hw @ Emax - weir crest elevation type 11 storm distribution region. The present = 105.7 - 100.0 = 5.7 ft. channel capacity, 180 efs, was established by computing discharge for the 25-year-frequency storm Since q, is known to be 180 efs, solving equation 6-1 by the Graphical Peak Discharge method (chapter 4). for L, yields The developed-condition peak discharge (qi) computed Lw qO [Eq. 6 by the same method is 360 cfs, and runoff Q is 3.4 3.2 Hw.5 inches. Since outflow must be held to 180 efs, a 180 detention basin having that maximum outflow = 4.1 ft. discharge (qO) will be built at the watershed outlet. 3.2 (5.7)1.5 How much storage (V,) will be required to meet the In summary, the outlet structure is a rectangular maximum outflow discharge (qO) of 180 efs, and what weir with crest length of 4.1 ft, Hw = 5.7 ft, and qO will be the approximate dimensions of a rectangular 180 efs corresponding to a V, 5.9 acre-ft. weir outflow structure? Figure 6-2 shows how worksheet 6,a is used to estimate required- storage (VS = 5.9 acre-ft) and maximum stage (E,,, = 105.7 ft). The rectangular weir was chosen for its simplicity; however, several types of outlets can meet the outflow device proportion requirement. Most hydraulic references, along with considerable research data that are available, provide more guidance on variations of outlet devices than can be summarized here. An outlet device should be proportioned to meet specific objectives. A single-stage device was specified in this example because only one storm was considered. A weir is suitable here because of the low head. The weir crest elevation is 100.0 ft. 6-4 (210-VI-TR-55, Second Ed., June 1986) Worksheet 6a: Detention basin storage, peak outflow discharge (qo) known Project 0 L, i Y, I By Date Location e r- (!@ 0.),"4@ Checked2&C Date Circle one: Present c, e- ct 9 e - r r Job ----------- -- -------------- ---- ---------- -------- --------- IOLA ------- -- -------- 4j > ---------- ------------------- --------------- 17 _I- -1-L I-L LI H44H 0 2- Detention basin storage V 1., Data- 6. -E ................ Drainage area ....... A, - mi 2 Vr q" 0 Rainfall distribution (use - with figure 6-1) type (I, IA, II, III) . qi 1st s2n@] 7. Runoff, Q ...... ini (From worksheet 2) stage ta ge 8. Runoff volume, 53.33) 2. Frequency ...... yr (Vr ;@.*- ac-ft 3. Peak inflow dis- 1_3GQJ 9. Storage volume, charge, qi .... cfs Vs .......... ac-f t (From worksheet 4 or 5b) (Vs - V ( V s r T 4. Peak outflow dis- r charge, q,) .... cfs 10. Maximum stage, E,.x -71 __1 (From plot) q. ........ S. Compute q 2nd stage q. includes Ist stage q 0 Figure 6-2-Worksheet 6a for exarnple 6-1. (210-VI-TR-55, Second Ed., June 1986) 6-5 Example 6-2: Estimating V., two-stage structure By substituting these values in equation 6-4, discharge (q,) through the first stage at 105.7 ft is In addition to the requirements for a 25-year peak calculated: outflow discharge of 180 efs stated in example 6-1, a decision was made to limit the 2-year outflow qO = 3.2(2.3)(5.7)1.5 = 100 CfS. discharge to 50 efs because of potential damages to OF agricultural property below the lined channel. By the Now compute the required weir crest length (Lw) method in chapter 4, the estimated 2-year peak the second stage, using equation 6-5. Since the discharge for developed conditions will be 91 efs and second stage crest elevation is 103.6 ft, runoff (Q) will be 1.5 inches. HW = 105.7 - 103.6 = 2.1 ft, Again, a rectangular concrete weir outflow device was selected; the device could have been another and, since q, for the second stage equals the total type, but it is important to remember that the flows discharge from example 6-1 minus discharge throuA through the first stage are part of the total discharge the first stage, of the higher stage. Figure 6-3 shows how worksheet 6a is used to qO = 180 -.100 = 80 cfs. compute the V, of 2.4 acre-ft and Ema, of 103.6 for Finally, substituting these H, and qO values in the first stage. Emax of 103.6 is the weir crest equation 6-5 results in elevation for the second stage, L, 80 8.2 ft. Equation 6-5 is again used to compute L, for the 3.2(2.1)1-5 first stage. The weir crest elevation for the first stage is 100.00 ft and qO = 50 efs. The first-stage In summary, the outlet structure is a 2-stage computations for H, and L, are rectangular weir with first stage crest length of 2.3 Hw @ E ft at elevation 100.0, and second stage crest length max - weir crest elevation 8.2 ft at elevation 103.6 ft. = 103.6 - 100.0 = 3.6 ft; and, from equation 6-5, The weir equation used is probably less accurate foi the two-stage example than for the single-stage example. The actual second-stage discharge will be L, = -50 - 2.3 ft, slightly more than the one computed, but a 3.2(3.6)1-5 discussion of hydraulics of outflow devices is outsidi the scope of this technical release. Example 6-2 is The second stage is then proportioned to discharge presented only to illustrate the interrelationship of the correct amount at 105.7 ft (figure 6-2, step 10). outflow discharges and storage volume and to show Compute the discharge through the first stage for how to develop preliminary estimates of storage elevation 105.7 ft using requirements for two-stage outlet structures. L, = 2.3 ft (first stage) and F1w = 105.7 - 100.0 5.7 ft. 6-6 (210-VI-TR-55, Second Ed., June 1986) Worksheet 6a: Detention basin storage, peak outflow discharge (qo) known Project P_.LLi1_S VII @c By SWR Date Location Diler- Cou@,4-f, 79,'Ar_'5SCM Checked ?,Gc_ Date 1)L9 es- Circle one: Present c, e- s 4 rw c- 4v t@_ - --------- --------- --- ---------- --------------------- ---------- :--e ----------- > 167 ----------- -- e-- -- - 11 FHT ----- ---------- 1-1-LIJ 100 2- Y Detention basin storage V 1. Data: 6. Vi ................ Drainage area ....... A. - -7 mi 2 r q Rainfall distribution (Use - with figure 6-1) type (I, IA, II, III) - qi 7. Runoff, Q ...... in 1st s2nd@ (From worksheet 2) stage ta 'e 8. Runoff volume, -1 - QA,53.33) Vr.......... ac ft Z_ I 2. Frequency ...... yr (Vr 3. Peak inflow.dis-c 9. Storage volume, charge, qi ... fs VS .......... ac ft (From worksheet 4 or 5b) V Peak outflow dis- Vr charge, q 0 .... cfs so @8 10. Maximum stage, E max (From plot) q. 5. Compute q ........ 2nd stage q. includes Ist stage q 0 Figure 6-3.-Worksheet 6a foi- example 6.2. (210-VI-TR-55, Second Ed., June 1986) 6-7 Example 6-3: Estimating q, A development is being planned for a 10-acre watershed (0.0156 Mi2). A county ordinance requires that the developed-condition outflow from the watershed for a 24-hr, 100-year frequency storm does not exceed the outflow for present conditions. The peak discharge from the watershed for present conditions, 35 cfs, is calculated from procedures in chapter 4. For developed conditions, runoff (Q) is 5.4 inches, peak discharge from the watershed is 42 efs from procedures in chapter 4, and rainfall distribution is type IL What will be the peak outflow discharge (q,,) from a detention basin that is located at the outlet and has maximum allowable storage volume (V,) of 35,000 ft3 and peak inflow discharge (qi) of 42 efs? Figure 6-4 shows how worksheet 6b is used to estimate q,, as 33 efs, which is within the 35-efs limit. An outflow device will be selected to discharge 33 efs at a stage corresponding to a Vs of 35,000 ft3. 6-8 (210-VI-TR-55, Second Ed., June 1986) Worksheet 6b: Detention basin peak outflow, storage volume (V,) known Project 0c, -15 A C res By @-;W P, Date I I Location b@jer- co"'-t-y) e S -S e Checked Date 1 11) 1 af-- Circle one: Present @De =elopd 00 0 Not applicable to this example 0 > __I J-1 LJ.l I., 1 1. 11 Detention basin storage Data: 6. Compute ...... Drainage area ....... Am -0.01S mi 2 V r Rainfall distribution type (1, IA, 11, 111) q qi V 1st s2nq (Use and figure 6-1) I-Stage tage r 8. Peak inflow dis- L4 I 2. Frequency ...... yr @00 charge, q, .... cfsI 3. Storage volume, (From worksheet 4 or 5b) Vs .......... ac ft 0. 9. Peak outflow dis- -:@ -3 4. Runoff, Q ...... in charge, qo .... cfsI. I (From worksheet 2) (q, = qi(Lo qi 5. Runoff volume, Vr .......... ac-ft 10. Maximum stage, E max IN fA I (Vr - QA m53.33) (From plot) 2nd stage q 0 includes Ist stage q 0 Iftl@ 9'', Figure 6-4.-Worksheet 6b for exaniple 6-3. (210-VI-TR-55, Second Ed., June 1986) Example 6-4: Estimating V,, Tabular Hydrograph From exhibit 5-11, the largest qt value is 357 esm/in method (exhibit 5-11, sheet 7: T, = 1.0 br, Tt = 0, and Ia/P = 0.10 at 12.8 hr). From figure 5-4, AmQ for subarea 6 This example builds on examples 5-1 and 5-2 (pages is 1.31. Therefore, 5-4 to 5-8). If peak outflow discharge from subarea 7 must not exceed the discharge for present q = (357) (1.31) = 468 efs. conditions, what will be the storage volume (V,) required in a detention basin at the outlet of subarea This q value is, of course, the same as the peak 6? inflow discharge (qi) into the detention basin. First, compute the outflow hydrog-raph without Finally, use worksheet 6a (figure 6-5) to compute V, subarea 6 as shown in the table below, which as 33.2 acre-ft. presents developed-condition discharges for example 5-2. (The information in the table is from fig-tire 5-4.) The required storage volume of 33.2 acre-ft, is the basis for determining the required stage in the detention basin. This stage is a guide in Discharge (cfs) at time (hr)- proportioning a spillway that will discharge 82 efs or less at that storage. The timing or routing effect is Subarea .13.0 13.2 13.4 13.6 13.8 14.0 14.3 14.6 15.0 not considered because the outflow hydrog-raph will discharge at near qo for a significant period. - ---------------- efs ------------------- 1 7 9 11 16 24 46 78 122 155 2 7 9 12 20 33 55 96 132 132 3 14 29 58 89 106 102 74 46 25 4 19 32 63 114 169 207 193 143 83 5 117 167 205 214 202 175 132 99 70 6 omitted - - - - - - - - - 7 244 167 119 90 72 59 48 40 34 Total without 408 413 468 543 606 638 621 582 499 subarea 6 After computing the outflow hydrograph, determine the maximum permissible outflow discharge from subarea 6. The present condition peak discharge at the outlet of subarea 7 is 720 efs at 14.3 hr (figure 5-2), and the developed condition peak discharge at the outlet of subarea 7 minus subarea 6 is 638 efs (table above). The difference between these two discharges, 82 efs, is the maximum outflow discharge (q,) for the detention basin. Next, determine the peak discharge for subarea 6 for developed conditions by substituting values in equation 5-1: q = qt A.Q. [Eq. 5-11 6-10 (210-VI-TR-55, Second Ed., June 1986) Worksheet 6a: Detention basin storage, peak outflow discharge (qo) known Project _ F- I lsi.00 C@ By :5N Date I bhs(as _r Location b-@L-r e ',A '.A e SSCe Checked IZGC- Date -1-0 @1018s_ Circle one: Present Developed -H+14+ 00 0 Not appl icabl e to this example .0 11 T_ 11 > ... - - - - - - - - - - - - - - - _TIEL ----------------- D-F-1 - ---------- Detention basin storage V 1. Data: 6. -V@ ................ Drainage area ....... Am - 0,40 mi 2 r q, Rainfall distribution (Use - with figure 6-1) type (1, IA, II, III) . _ff- qi 7. Runoff, Q ...... in 2nd (From worksheet 2) -tlasgte 9 t [, le 8. Runoff volume, 2. Frequency ...... yr Vr ........... ac-ft I (Vr QA,,53.33) 3. Peak inflow dis- 9. Storage volume, chargep qi .... cfs I L4 Vs .......... ac-ft _3_3,Z1 (From worksheet 4 or 5b) V 4 (Vs . V,(Vs)) Peak outflow dis- r charge, q. .... cfs 10. Maximum stage, Em..1 N 1A 1 5. Compute Lo ........ 10,11,51 (From plot) qi 2nd stage qo includes Ist stage qo. Figure 6-i-Worksheet 6a for example 6-4. (210-VI-TR-55, Second Ed., June 1986) 6-11 Appendix A: Hydrologic soil groups Soils are classified into hydrologic soil gToups In exhibit A-1, some of the listed soils have an added (I-ISG's) to indicate the minimum rate of infiltration modifier; for example, "Abrazo, gravelly." This obtained for bare soil after prolonged wetting, The refers to a gravelly phase of the Abrazo series that HSG's, which are A, B, C, and D, are one element is found in SCS soil map legends. used in determining runoff curve numbers (see chapter 2). For the convenience of TR-55 users, exhibit A-1 lists the HSG classification of United Disturbed soil profiles States soils. The infiltration rate is the rate at which water As a result of urbanization, the soil profile may be enters the soil at the soil surface. It is controlled by considerably altered and the listed gToup surface conditions. HSG also indicates the classification may no longer apply. In these transmission rate-the rate at which the waler circumstances, use the following to determine HISG moves-within the soil. This rate is controlled by the according to the texture -of the new surface soil, soil profile. Approximate numerical ranges for provided that significant compaction has not occurred transmission rates shown in the HSG definitions (Brakensiek and Rawls 1983): were first published by Musgrave (USDA 1955). The four groups are defined by SCS soil scientists as HSG 'Soiltextures follows: A Sand, loamy sand, or sandy loam Group A soils have low runoff potential and high B Silt loam or loam infiltration rates even when thoroughly wetted. They C Sandy clay loam consist chiefly of deep, well to excessively drained D Clay loam, silty clay loam, sandy clay, silty sands or gravels and have a high rate of water clay, or clay transmission (greater than 0.30 in/hr). Group B soils have moderate infiltration rates when Drainage and group -D soils thoroughly wetted and consist chiefly of moderately deep to deep, moderately well to well drained soils with moderately fine to moderately coarse textures. Some soils in the list are in group D because of a These soils have a moderate rate of water high water table that creates a drainage problem. transmission (0.15-0.30 in/hr). Once these,soils are effectively drained, they are placed in a different group. For example, Ackerman Group C soils have low infiltration rates whei@ soil is classified as A/D. This indicates that the thoroughly wetted and consist chiefly of soils with a drained Ackerman soil is in gToup A and the layer that impedes downward movement of water undrained soil is in group D. and soils with moderately fine to fine texture. These soils have a low rate of water transmission (0.05-0.15 in/hr). Group D soils have high runoff potential. They have very low infiltration rates when thoroughly Nvetted and consist chiefly of clay soils with a high swelling potential, soils with a permanent high water table, soils with a claypan or clay layer at or near the surface, and shallow soils over nearly impervious material. These soils have a very low rate of water transmission (0-0.05 in/hr). (210-VI-TR-55, Second Ed., June 1986) A-1 Exhibit A-1: Hydrologic soil groups for United States soils 0 ADAVEN C A "PEN, IN e ALD 1116 0 ALSEA'G. B AABERG 0 ADD I CK S D AHPNK C ALDINO C ALSPA C A.-A. AARON C ADDIELOU B AHPS 6 ALEDO C ALSTAD C AASTAD 6 ADE A AHTANUM 0 ALEGROS C ALSTONY B AAZDAHL 8 ADEK 8 AHT A NUM . DRAINED C ALEKNAGIK C ALSUP C ABAC D AD@L 11 A I'll A HNEE 8 ALEMEDA C ALTAMONT D ABAJO C ADEL. WET D AIeONIT0 C ALEX 8 ALTAPEAK B ABALOBADIAH ADELAIDE D A100 D ALEXANDER C ALTAR B ABARCA 6 ALIELANTO 2 A IKE N 8 ALEXANDRIA C ALTAVISTA C ABBAYE 6 ADELINO 0 AIKMAN D ALFIP B ALTDORF D ABBIE B A DE L I NO . C AIKMAN, 5 T -)NY C ALFLACK C ALTHOUSE B ABBOTT 0 SALINE-ALKALI .'C@ A@ILIYII' D ALF OPD B ALTICPE 'ST B A880TTSTOWN C ADELPHIA A VEL L ALGANSVE P ALT,ITA C ABCAL 0 ADEN C A INAKEA B ALGARROBO A ALTMAR 6 ABFGG 0 ADENA C ANSLEY B ALGEPITA B ALTO C ASELA 11 ADGER D AINSWORTH I ALGIERS C/D ALTO GA C ABELL 8 ADIEUX P AIRM.CNT C ALGOA C .1 ALTON A ABERDEEN C ADILIS 6 AIPPOPT U I ALGOMA 0/Dj ALTOONA C ABERONE B ADIN D A ITS e ALHAMBRA 8 ALTUDA D APERSITO C ADIDS 0 A JL C ALHARK B ALTURAS C ASERT 8 ADJUNTAS C AJOL ITO 0 ALICE 8 ALTUS B AIEI 0 A11K IN S 6 A KAD C AL:CEL 6 ALTVAN 6 A5GESE 8 ADK INS. ALKALI C AKAKA A AL CIA 8 ALUF A ABILENE C ADKINS. WET C AKAN S/Dj ALIDA B I ALUM 0 ABIOUA 5 ADLER C AKASKA B ALIKCHI 8 ALUSA D ABIQUA, FLOODED C ADMAN C AKELA D ALINE A ALVARADO E! ARITA C ADOBE C AKEPCAN b ALKIPIDGE C ALVIN a AeO C ADOLPH B/Dj 'AKEPUE r@ I ALKO D I ALVIRA C ABOq D ADDS C AKINA e ALLAGASH 8 ALVISO D ABORIGINE 0 ADRIAN AID AKLEP D ALLAMORE D ALVODEST D ABOTEN 0 ADVOKAY V ALADDIN @! ALLANTON B/Dj ALVOP D ABPA 9 AECET C ALADSHI F; ALLANTON. D ALV09, DRAINED C ABRAHAM 5 AENEAS 9 ALAE A I DEPRESSIONAL ALVOP. PROTECTED C ABRAZC D AFFEY C ALAELOA e I ALLARD B ALWILDA 6 ABPAZO. GDAVELLY C AFLEY 0 ALAGA A ALLDOWN B ALYAN C A8REU 0 AFTADEN D ALAK A I C ALLEG14ENY 6 ALZADA D ABPIGO El I AFTON C/01 ALAPA b ALLEMANDS I) ALZOLA C ABSAOCKEE C AGA 5 j ALARADITAS C ALLEN 8 AMADOR D A1,SCO TA A AGAIPA- D ALAIIANCI. 11 ALLENDALE 11 AMA131IN D ABS-4EP 0 AGAN D ALAVaIOUE. 8 ALLENDOPF 0 AMALIA 6 ABSTED C AGAR B ALAP.C r ALLENS PARK B AMALU D ABSTEO, FLOODED D AGASSIZ 0 ALAMCGOPOO B ALLENS PARK- STONY C AMANA 6 AbSTON C AGA TE C ALAMOSA 0 ALLENTINE 0 AMANDA C ACACIO B AGATHA & ALAMOSA. DrAINEC E ALLENWOOD B AMARILLO B ACADF 11Y C AGAWAM P ALA@IUCHEE P ALLEY 8 AMASA a ACADIA 0 AGENCY C ALANGS ALLHANDS D AMASA. MODERATELY C ACA14A D AGER D ALAPAHA 1) ALLIANCE B WET. SANDY ACANOD C AGFAYAN D A LAPA I A ALLIGATOR D SUP-STRATUM ACASCO 0 1 AGNAL 0 ALAZAN 8 ALLIS 0 AMBER 8 ACCELERATOR I AGNESTON, E ALEANO P ALLISON e AMBOIA D ACEITUNAS 6 AGNESTON COBEILY C ALbAN D ALLKEP e AMB AT C ACEL C SUBSTRATUM ALBANY C I ALLOP 0 AMBOY C ACHIPIN C AGNESTON. COFIBLY C ALeATON D I ALLOUEZ .8 AMBRANT a ACKEP 8 AGNESTON. C ALCEE C f ALkAC E3 I AMBRAW 8/0 ACKEPWAN A/01 NONGRAVELLY ALEEMARLE B I ALMANOP e I AMELIA C ACKERVILLE C AGNEW C ALBERTON 5 ALMAVILLE 1) AMEN E D ACKETT 0 AGNOS 1) ALeEPTVILLI C ALIAENA C AMENIA a ACKLEY 8 AGON C ALE-INAS 13 ALMERIA 0 AMENSON D ACKMEN F1 AGOPT C ALPICN 6 ALWIPAN7E 6 AMERICANOS 8 ACKMCRE a AGRA C ALEPIGHTS C ALMO D AMERICUS A ACKWATER D A6UA e AL@UPZ C ALMONT D AMERY B ACHE C AGUA DULCE 6 ALeUPZ. DRAINED e ALMOTA C AMES C/0 ACO 8 AGUA FRIA C ALEUS B ALMY e AMESH.A a ACOMA C AGUA FRIA. HIGH 9 ALCAN () ALNITE D AMESMONT C ACORL C RAINFALL ALCESTER e ALO 0 AMHERST D ACOVE C AGUA FRIA, STONY C ALCOA P ALOHA C AMISTAD 0 ACPEDALE 1) AGUADILLA A ALCONA 6 ALOMAX 11 AMITY D ACP'-E C AGUALT 5 1 ALCCT A j ALONA a I AMMON B ACOELANE C ArUEDA B ALCOVA P. ALONSO 6 AMCDAC C ACTON B AGUILARES e A L D A C ALOVAR C AMCLE A ACUFF AGUILITA E3 ALDA. SALINE B/01 ALPENA A AMOP 0 ACUNA C AGUIRRE L J ALDA X C ALPHA e AMOPUS D ACY C AGUST IN e I ALDEN D ALPIN A AMOS ' C ADA C AHAPT C I ALOER C ALPON a AMOSTOWN C ADA I R C AHL C ALDEPOALE C ALPOWA & AMPAD C ADAMS A AHLSTROM D ALDEPPAND 6 ALRED 8 AMPHION C ADAMSCN 8 APHEEK C ALC-EFWOGD C ALROS C AMSDEN B ACAMSVILLE C AHOLT D ALDI C ALS A AMSTERDAM B ADATON D I DAFPAH 8 INALDINE ALSCO B AMTOFT 0 L DIES : TWO HYDPDLDrJc S IL GROUPS SUCH AS D/C 1 DICATES TAE DPAJNED/UND R AINED SITUATION. MODIFIEPS SHOWN. F.C.. BEDROCK SUBSTPATUP. REFER TO A SDECIFIC SOIL SErIES PHASE FOUND IN SOIL MAP LEGEND. (210-VI-TR-55, Second Ed., June @986) A-3 Exhibit A-1, continued: Hydrologic soil -groups for United States soils AMWELL C ANSELMO, BEDROCK A I ARCH E ARMYDRAIN C I ASSUMPTION B AMY D SUBSTRATUM I ARCHA SAL E APNEGARD 0 1 ASIA e ANACAPA B ANSGAP 6/Dj ARCHBOLD A APNESSM D ASTATULA A ANA COCO 0 ANSPING B ARCHFR C APNHEI D ASTOR B/D ANACONDA 9 ANT FLAT C A,RCHEPOALE C ;I ARNO D ASTOR. FLOODED D ANAHEIM C ANTEL ARCHES D I ARNOLD A ASTORIA B ANAHUAC D I ANTELOPE SPRINGS C ARCHIN D. I APNOT C/D1 ATARDUE ANAMITE 0 1 ANTEPO D ARCHIN, COOL C ARNTZ C ATASCO C ANAPRA 6 ANTHO 8 ARCHULETA D APOL D ATASCOSA D ANASAZI C ANTHOLOP D ARCIA C APOSA C ATATE B ANATONE D ANTHONY B APCLAY D APP. C ATCHEE D ANAUD D ANTIGO B ARCO C f ARRADA D I ATCO 8 ANAVERDE 9 ANTI.LON C ARCO DRAINEP E ARPASTRE 8 1 ATeNCIO B ANAWALT D ANT O.CH D ARCO:A C ARREDONDO A I ATEPIC D ANCHO 8 ANTLER C I ARD C ARRIBA C I ATHELWOLD ANCHO. SALINE C ANTOINE B I ARDENM.ONT 6 ARRINGTON B I ATHENA ANCHOR POINT D ANTONITO C ARCENVOIR B ARPIOLA D I ATHERTON B/D ANCHORAGE A ANTOSA D ARDEP B APRITOLA D I ATHOL 8 ANCLOTE B/D1 ANTROeUS a ARDEP, WET C ARROLIME C I ATKINS D ANCLOTE. D I ANTWERP C ARDILLA C APRON D ATKINSON .5 DEPRESSIONAL ANTY 6 ARDIVEY B ARROWHEAD C ATLAS D ANCLOTE. D ANUNDE e ARONAS S ARROYADA 0 ATLEE C FREQUENTLY ANVIK 8 ARDTCO 6 ARROYO SECO 6 ATLOW D FLOODED ANWAY 13 ARECIBO A ARSITE D ATMORE 8 D ANCO C AOWA 8 AREDALE 8 'ARTA C ATOKA C ANDERGEORGE 8 APACHE D ARENA 1) ARTESIA 0 ATOMIC 8' ANDERLY C APAKUIE A I ARENA, DRAINED C ARTESIAN D ATPAC B ANDERS C APALACHEE D I APENALES A AP7NOC B I ATRAVESADA D ANDERSON 9 APALO B APENDTSVILLE@ B ARTCIS C I ATRING e ANDOK 8 A PARE JO 8 APENOSA A APUJO B I ATPYPA D ANDOVER D I APELDORN D ARENZVILLE 0 ARUNDEL C I ATSION C/o ANDRADA D j APEX 8 APGALT D APVA D ATSION, TIDE D ANDPEESON C I APISHAPA 0 ARGENT D ARVADA 0 FLOODED ANDREGG 8 APISON 8 APGENTA C APVANA C ATTELLA ANDRES 9 APMAT 8 ARGONAUT D ARVESON B/Dj ATTEP A ANDREWS C APMAY D APGORA 6 ARVILLA A I ATTEPBERRY 8 ANDRUSIA A APOLLO 0 ARGYLE e ARVIN 8 1 ATTEWAN 6 ANDRY D I APOPKA A I ARIEL C I ARZO D I ATTEWAN. WET 0 ANDYS B APPANOOSE 0 1 APIKARA 8 1 ASA P I ATTICA e ANED D APPEPSON C APIMO 0 1 ASASEAN B I ATTOYAC 8 ANELA 8 APPIAN 6 ARIPEKA C ASSILL 0 ATWATER B ANETH 6 APPIAN. C ARIPINE A ASCALON 8 ATUELL D ANETH. DRY A SALINE-ALKALI ARIS D ASCAR C ATWOOD B ANGELICA B/Dj APPIAN. WET C ARISPE C ASCHOFF B AU GRES ANGELINA 0 1 APPIAN. RECLAIMED C I APIZO A ASH SPRINGS C AUA ANGELO C I APPLESUSH 5 ARKA8UTLA C ASHART 0 AUBAPGUE D ANGELUS 8 APPLEDELLIA C ARKANA C ASHBON D AUSSEENAUBSEE 8 ANGIE APPLEGATE C APKAQUA C ASHCROFT 8 1 AUBERRY B ANGLE A APPLETON C ARKONA E ASHDALE E I AUBREY C ANGLEN C APPLING B AFKPORT V ASHDOWN B I AUBURN 0 ANGOLA C APRON B APKSON B ASHE 6 1 AUBURNDALE S/ ANGORA 6 APT 6 ARKTON C ASHER C I AUFCO D ANGOSTURA 8 APTAKISIC I? ARLAND E ASHFORD 0 1 AUGGIE B ANHALT D APTUS C ARLE C ASHFOPK D I AUGSBURG B/D ANIAK D AQUILLA A ARLINGTON C ASHGROVE D I AUGUSTA C ANZMAS C AQUINAS C I ARLINGTON. THICK e I ASHHURST C I AUGUSTINE 6 ANINTO D ARABRAS D SOLUM ASHIPPUN C I AULD D ANITA D ARADA 8 ARLO 0 ASHKUM B/D] AURA a I ANKENY 8 ARAGON C ARLOVAL A ASHLAP 6 1 AUPELIE D ANKLAM D ARAMBURU C ARMAGH 0 ASHLEY P I AURELIUS B/D ANKONA D ARANSAS D APMCO C I ASHLO 8 1 AURORA C ANNASELLA B ARAPAHOE e/Dj APMELLS 6 1 ASHMED e I AUSMUS 0 ANNANDALE C ARAPIEN C I APMENVARIS C I ASHMUN D I AUSTIN C ANNAW B ARARAT 6 APPEN I A D ASHOLLER D I AUSTINVILLE 5 ANNEMAINE C ARAI D ARMESA e ASHPOPT B AUSTWELL D ANNIS C APAVAIPA C ARMESPAN 0 ASHTON B AUT C ANNIS. SALINE a APAVE D ARM.IFSB,URG 0 ASHUE 0 AUTOMBA B ANNIS. DRAINED 8 APAVETON 8 ARPOT jo r ASHUELOT D AUTRYVILLE A ANNISQUAM C ARBELA C APMINGTON 0 1 ASHWOOD C AUXVASSE 0 ANNISTON 9 APSIDGE C ARMISTEAD C I ASKEW C AUZOUI 8 ANNONA D ARBOLES C ARMITAGE C ASOLT D AVA C ANDCON C APBONE 8 1 ARMO 8 ASOTIN C- I AVALON 8 ANOKA B ARBOR 8 1 APMCINE D ASPAPAS e I AVANT 5 ANONES C ARBUCKLE 8 1 APMONA C ASPEN 6 1 AVAR D ANOWELL 0 1 AReUCKLE. WET C I APMOUP 8 ASPEPMONT B I AVAWATZ A ANSAPI 0 1 ARaURUA C I ARMPUP C ASPERSON C AYENAL B ANSEL a I APSUS 6 APMSTER C ASSATEAGUE A AVILLA 6 ANSELMO B ARCATA 6 ARMSTRONG C ASSININS 8 AVIS A ARCETTE B ARMUCHEE C ASSINN18DINE 8 AVOCA 8 NOTES: TWO HYDPOLOGIC SOIL GROUPS SUCH AS B/C INDICATES THE DRAINEr/UNDRAINED SITUATION. MODIFIERS SHOWN, E.G.. BEDROCK SUBSTRATUM. PEFER TO A SPECIFIC SOIL SERIES PHASE FOUND IN SOIL MAP LEGEND. A-4 (210-VI-T R-55, Second Ed., June 1986) Exhibit A-1, continued: Hydrologic soil groups for United States soils VON C BALDFIELD c eARDLEY C BATESON 8 BEAVERTON B AVON 3VAG D BALDHILL B BARELA C BATESVILLE C BECKER 6 AAVONDA 8 BALDMOUNTAIN B BARFIELD D BATH C BECKET C AVONDALE B BALDOCK D BARFUSS B eATIERSON D BECKLEY 8 AVONVILLE 8 BALDOCK. GRAVELLY C BARGE C BATTLE CREEK C BECKMAN D AVTABLE D SUBSTRATUM. BARGER C BATTLEMENT 6 BECKS C AWBRIG D DRAINED BARIO B BATZA 0 BECKTON. D AXIS D I OALDOCK. SALINE C BARISHMAN C SAUDET TE E VECKTON, WELL C AXTELL D I BALDOCK. SALINE C BARKCAMP E BAUER C DRAINED AYAR D I BALDOCK. DRAINED C BARKELEW B BAUMAN C BECKVILLE AYCOCK 11 1 BALDW IN D BARKERV.LLE C BAU.IARD B BECKWITH D AYDELOTTE D I BALDY 8 BARKLEY C BAUSCHER 0 BECKWOURTH C AYERSVILLE 0 1 BALE e BARKOF D B AUX B OF CR A FT. B AYLMER A I BALE. OET D BARLEYFIELD B BAUXSON 8 BECPEEK B AYNOR 6/01 BALLAHACK 0 1 BARLING C I BAXENDALE 8 1 EEDELL e AVON 8 1 BALLARD P BARLOW B BAXTER 5 BEDEN D AYOUB C .1 BALLER D BARNASE C 6 BEDFORD C AYR B. -I BALLINGER D BARNARD C BAYAMON 0 BEDINGTON B AYRES D I BALLTOWN D eARNELLCREEK B BAYARD 0 BEDKE 8 AYRSHIRE C I BALLVAR 0 BARNES H BAYBORO D BEONER C AYSEES 8 BALLY C BARNESTON B I BAYERTON C BEDSTEAD C AZAAR C BALM D BARNESTON. A BAYFIELD C BEDWYR D AZELTINE 11 BALMAN. B NONGRAVELLY BAYFIELD. WET D BEE a AZTALAN C BALMAN SALINE, C 8 AP EY D BAYHDRSE D BEEBE A AZTEC B FLOODED BARNHARDT B BAYLIS R BEECHER C AZTEC. HIGH C I BALMLAKE B BARNMOT D BAYMEADE A BEECHGROVE B RAINFALL I BALMORHEA C BARNSDALL B BAYOU D 8EECHWOOD C AZULE ' C I BALON 6 OAPNSTABLE 8 BAYOUDA" D BEEK C AZWELL c I eALSORA 8 BARNUM B BAYSHORE 0 BEEKMAN C SAAHISH B I BALTIC D BARODA D BAYSHOPE. 8 BEELEM D BABB 8 1 BALTIMORE 8 eAROID A MODERATELY WET BEELINE 0 BASSINGTON e I BAMA B BAPOID. WET 0 BAYSIDE D BEEMONT C BABELTHUAP B I BAMAC A BARRADA D BAYTOWN B BEENOM D BACA B I BAMBER B BARRE 0 BAYUCOS D BEESKOVE a BACA. FLOODED C I BANOS C BARRETT D BAYVI D eEETVILLE B BACH 8/01 BAMTUSH B I BARRIER D I BAYVIEW D I BEEZEE a BACHELOR 8 1 BANADERU D I BARRINGTON e I eAYWOOD A I BEFAR D BACHD D I BANAT 8 1 BARRO14 B I.,BAZETTE C I BEGAY e BACHUS. C I BANBUPY 0 BAPPONETT E/Dj BAZILE 8 1 BEHANIN B BACKBAY D I BANCAS C BARRY B/D'j BEACH D I BEHEMOTOSH C ACKBONE B I BANCKER D BARSA C C BEAD C BEHRING D :ACL FF D BANCROFT B BARSHAAD D EEADLE C BEIGLE 8 Bi C06i C I BANCY D I BART B OEALAND B BEIRMAN 0 BACONA- B I BANDAG. B I BARTINE C EEALES 0 BEISIGL A 6iDAXE 8 eANDERA 8 1 BARTLE D BEAM 11 BEJE BADENA B eANDID 8 1 BARTLEY C BEAMTON C BEJUCOS B BADEMAUGH B BANDON C I BARTO D SEANBLOSSOM B BELAIN C BADGE B BANE A I SARTOME D I BEANFLAT C I eELATE B BADGERTON B SANGO 8 1 BARTON B I BEANLAKE B BELCHER 0 BADIN C BANGOR B I BARTONFLAT B I BEANO D BELDEN C BADITO C BANGSTON A BARVON E I BEAR BASIN 0 BELDING B BADO D BANIDA 0 BARX e I BtAR CREEK 0 BELEN D BADUS C/Dj BANKARD A I BASCAL B I BEAR LAKE 0 BELFAST a BADWATER B BANKHEAD 8 1 BASCO C I BEAR PRAIRIE 8 BELFIELD C BAGARD B BANKS A BASCOM e BEARDALL C BELFORE e BAGDAD 8 BANLIC C BASCOVY D BEARDEN C BELGARRA C BAGGOTT D BANNEL B BASEHOR D BEARDSLEY C BELGRADE B BAGLEY 6 BANNER C BASH C BEARDSTOWN C BELHAVEN 0 BAHEM B BANNING C BASHAW D eEARGULCH 8 BELINDA D BAHIA A 8ANNION C BASHER B BEARMOUTH 8 BELJICA 0 BAHL C BANNOCK 8 BASILE D BEARPAW C BELK 0 eA I LE D BANTRY A/D I BASIN C BEARSKIN D BELKNAP C BA.LEGAP B BAPOS D I BASINGER E/D1 BEARSPRING 8 1 BELLAVISTA C BAILEYCREEK C BARABOO e BASINGER. 0 1 BEARTRAP B BELLE 8 BAILING C BARAGA C DEPRESSIONAL I PEAPVILLE C 6ELLECHESTER A SAINVILLE C BARANA 8 BASINGER. FLOODED D I BEARWALLOW C BELLEHELEN 0 BAIRD HOLLOW C I BARATARI A/01 BASKET 8 1 BEASLEY C I BELLENMINE D BAIRD HOLLOW. D BARBAROSA D BASSEL I- I SEASON C I BELLEVILLE B/D EXTREMELY COBBLY BARBARY 0 BASSETT e I BEATRICE D I BELLEVILLE. PONOED 0 BAIRD HOLLOW. B BAPBEPT D BASSFIELD 8 1 BEAUCOUP B/D1 BELLEVUE B GRAVELLY BARBOUR 6 BASTIAN C BEAUFORD D I BELLICUM 8 eAJURA D BARBOURVILLE B BASTON C eEAUGHTON D BELLINGHAM D BAKEOVEN D BARCAVE B BASTROP H BEAUMONT 0 BELLINGHAM. C BAKER C BARCE 8 BASTSIL 5 BEAUREGARD C DRAIN-ED BAKERSVILLE D BARCLAY C BATA 0 BEAUSITE C eELLPASS G BALAAM B BARCO 6 SATAN e BEAUVAIS B BELLPINE C BALCOM B eARCUS A 8 ATA V I A 0 1 BEAVERCREEK B BELLWOOD D BALD C BARD D BATEMAN 0 1 BEAVERDAM C I BELMEAR 0 SALDER D BARDEN C SATES a I SEAVERELL 8 1 eELMILL 6 OTES: TWO HYDROLOGIC SOIL GROUPS SUCH AS B/C INDICATES T-4E DRAINED/UNDRAINED SITUATION. MODIFIERS SHOWN, E.G.. BEDROCK SUBSTRATUM. REFER TO A SPECIFIC SOIL SERIES PHASE FOUND IN SOIL MAP LEGEND. (210-VI-TR-55, Second Ed., June 1986) A-5 Exhibit A-1, continued: Hydrologic soil groups for United States soils BELMONT BERTRAM B BILLINGS. 0 1 BLACKNOLL C I BLUE LAKE - BELMORE 8ERTRA NO 8 1 MODERATELY SLOW BLACKOAR B/01 BLUE STAR a BELPRE C I BERVILLE a/D1 PERM BLACKPIPE C I BLUEBELL C BELSAC B BERWOLF 0 BILLYCPEEK C :LACKPRINCE 8 BLUECHIEF BELTED 0 BERYL 8 6 LLYHAW D LACKADC B SLUECREEK D BELTON C BERZATIC D BILTMORE A BLACKSAN B SLUEDOME C BELTRAMI 8 1 BESEMAN A/Dj SIMMER D I eLACKSPAR D BLUEFLAT cc K BELTSVILLE C SESHERM C El INCO D 8LACKSPOT D BLUEGROVE C 8ELUGA D 8ESNER 8 8 IPIDLE 0- BLACKSTON 8 BLUEGULCH a BELUGA, DRAINED. C BESSEMER C SINFORD 0 BLACKTHORN 8 eLUEHILL C SLOPING BESSIE D SINGER 13 BLACKTOP 0 BLUEHON C BELVOIR C BESTROM C BINGHAM B BLACKWATER D BLUEJOINT a 8ELZAR C BETHANY C SINGNA14PTON S BLACKWELL D BLUENOSE a BEMIDJI A BETHEL 8 SINGHAMVILLE D BLADEN D BLUEPOINT A BEN LOMOND 8 BETHERA D BINNA B SLAG D SLUERIM C 5ENCHLEY C BETHESDA C SINNSVILLE D eLAGO D BLUESLIDE D SENCLARE C BETHLEHEM 0 BINS 0 1 BLAINE C BLUESPRIN C 8ENCO 8 BETIS A SINTON C I BLAIR C BLUESTONE 0 SENDER B BETONNIE 0 SINTON. RECLAIMED. 8 1 SLAIRTON C I oLuEviNG A SENDIRE C SETRA C 510YA 0 BLAKABIN C I BLUFF D BENEVOLA C FETTERAVIA C BIPPUS a SLAKE a I BLUFFDALE C SENEWiH D BETTS 6 SIRCHSAY C BLAKELAND A I BLUFFTON C/ BENFIELD C BEULAH 8 SIPCHFIELO D BLAKENEY C I 8LUFORD C BENGAL C BEVENT A BIRCHWOOD C BLAKEWELL C I BLUM C SENGE 0 BEVERIDGE 0 BIRDOW 0 BLALOCK D I SLY 8 BENHAM B BEVERLY 0 1BIRDS C/D1 BLAMER C I BLYBURG B BENIN D BEVERLY. GRAVELLY A fBIRDSALL D - I BLANCA 0 1 BLYTHE D BENITO D SEW C BIRDSBORO F I BLANCHARD A I 80AROMAN D BENJAMIN D BEWLEYVILLE 0 BIRDSLEY D I BLANCHE 6 1 BDARDTREE C BENKLIN C SEXAR D BIRDSVIEW A I BLANCHESTER 8/01 BOASH D SENMAN C BEZO D BIRKSECK B I SLANCOT B I BOAZ C BENNDALE 8 BEZZANT 8 BIRMINGHAM B BLAND C I eOBBITT C BENNINGTON C BIBS C BIRNEY B BLANDING 0 1 BOBILLO A 8ENRIDGE 0 eISLESPRINGS B 8 IPOME C 13LANEY 0 1 eO8NSOB C BENSLEY 8 BICE a BISBEE A BLANKET C I BOSS D BENSON D SICKERDYKE D BISCARO 0 BLANTON A I 808TAIL C BENTEEN C BICKETT D BISCAY B/01 BLANTON. 0 1 BOBTOWN a BENWY 8 SICKLETON a IBISGANI. 8 1 MODERATELY WET I BOCA S/D BENZ D SICKMORE C I MODERATELY WET BLANYON C I BOCA. DEPRESSIONAL 0 BEOR D SICONDOA D ISISGANI. FLOODED C SLAPPERT D I BOCA. TIDAL D SEOSKA 8 1 SICONDOA. DRAINED C IBISHOP D BLAQUIERE C I BOCK 8 SEOTIA 8 1 BIDDEFORD D IBISMARCK D SLASDELL A I SOCKER D BEOWAWE 8 1 OIDDLEOAN 8 BI$OODI D BLASE C I BOCKSTON a BEOUINN 8 1 SIDMAN C SISPING P BLASINGAME C I BODE BERCUMS 8 BIDWELL 9 BISSELL E BLAYDEN D I BODECKEP A 8 SIEBER D BISSONNET 0 BLAZBIRD D I BODELL 0 BERDA BEREA C 81EDELL D SIT C BLAZON D I BODEN C BERENICETON 8 BIEDSAW C BITTER 0 BLEAKWOOD C I BODEN8URG 8 BERGHOLZ C BIENVILLE A BITTER SPRING 8 BLEDSOE C I BODINE D BIG D I BODOPUMPE BERGLAND BLUE D BITTERROOT C BLEISLERVILLE C BERGOUIST 0 BIG HORN 8 SITTEPWATER 0 BLENCOE D I BODOT C BERGSTROM 8 BIG TIMBER 0 BITTON 0 BLEND D I SOEL A. BERGSVIK D I BIGARM B BIVANS D SLENDON 0 1 SOEL. OVERWASH C SERINO 8 SIGBEE A B IXSY 0 SLETHEN 0 1 BOELUS A BERIT D BIGBEND B BIXLEP C BLEVINS 8 1 BOERNE a BERKS C BIGBROWN C SJORK C I SLEVINTON 8 1 SOESEL C BERKSHIRE 8 BIGELOW 6 BLACHLY 8 1 BLEWETT 0 1 BOESEL. PROTECTED 0 BERLAKE B BIGETTY 8 BLACK BUTTE B SLICHTON D I BOETTCHER C BERLIN C I BIGFLAT 0 BLACK CA'JYON 0 BLICKENSTAFF B I BOGAN C BERMESA C I BIGFOOT C IBLACK CANYON. C SLIM0 0 1 BOGART 8 BERMUDIAN 0 SIGFORK C DRAINED BLIMSTER C I BOGGS BERNAL D BIGHAMS H BLACK RIDGE D BLINN C I BOGGY C 8 BERNALDO 8 SIGHILL 8 SLACKA C BLISS C I BOGRAP BERNARD D BIGLAKE A BLACKBURN B BLITZEN C I BOGUE D BERNARDINO C BIGMEADOW C BLACKDRAW 0 BLOCKHOUSE D I BOGUS C SERNARDSTON C SIGNELL C rLACKETT. 8 1 SLOMFORD S/Dj BOHANNON C BERNHILL 8 BIGRIVER S BLACKFOOT C I BLOOM D I BOHEMIAN a BERNICE A SIGSHEEP a BLACKFOOT, DRAINED 8 1 BLOOMFIELD A I BOHICKET 0 BERNING C SIGSPRING D BLACKHALL D I BLOOMING 8 8OHNA 0 BERNOW a BIGWIN I C SLACKHALL. WARM C BLOOMSDALE 8 BOHNLY 0 BERRYLAND B/Dj BIGWINDEP 0 1SLACKHAMW:R 0 SLOOP C BOHNSACK 8 BERRYMAN C BIJOPJA C IBLACKHAWK D SLOOP, GRAVELLY D SOISTFORT, 8 BERSON B BIJDU 8 1BLACKHOOF D I SUBSTRATUM BOJAC 8 BERTAG C BILSO C IeLACKHORSE G I BLOUNT C I Scio D BERTELSON B BILGER D ISLACKLEED B I BLOWERS 8 1 BOLAN 8 BERTHOUD a I SILLETT B IBLACKLEG C I BLUCHER C I SOLAR C SERTIE 8 1 BILLINGS C ISLACKLOCK D I BLUE EARTH B/D1 BOLD B SERTO D I IeLACKMAN C I BLUE EARTH. 0 1 SOLENT A BERTOLOTTI 0 BLACKMOUuT 8 1 SLOPING I SOLES C NOYES: TWO HYDROLOGIC SOIL GROUPS SUCH AS 8/C 'INDICATES THE L)PAINED/VNDRAINED SITUATION. MODIFIERS SHOWN. E.G.. BEDROCK SUBSTPATUM. REFER TO A SPECIFIC SOIL SERIES PHASE FOUND IN SOIL MAP LEGEND. A-6 (210-VI-TR-55, Second Ed., June 1986) Exhibit A-1, continued: Hydrologic soil groups for United States soils BOLFAR C BORGEAU B BRACEVILLE C BREW C BROKENHORN D BOLICKER B BORGES D BRACKEN B BREWER C BROLLIAR 0 SOLID D 80RIANA D BRACKETT C 8REWLESS C BROMER C BOLIVAR B BORKY C BRAD D BREWSTER D BROMIDE 13 BOLLAING C OORNSTEDT C BRADDOCK 6 BREWTON C BROMO 6 SOLS C BOPO D BRADEN 8 BRIBUTTE D BRONAUGH 8 BOLTON 0 BOROSEY C I BRADENTON B/Dj BPICKEL C BRONCHO B BOLTUS 0 BORREGO 0 BRADENTON, FLOODED D I BRICKMILL C BRONCHO. LOAMY A BOMAR C f BORREGUERO C BRADER 0 BRICKTON C SUBSTRATUM 80MBADIL D BORSKI 8 ERADSHAW B BRICO C BRONELL a BOMBAY . 8 BORTH C/. BRADSON B BRIDGE C BRONSON 8 BOM OSEE N C BORUP El D DRADWAY D OR DGECREEK C SPONTE C BON B BORY.AINT D PRADY B BPIDGEHAMPTON 8 BROOKE D SONATA D BOSANKO D BRAOYVILLE C BRIDGEPORT 8 BROOKFIELD B BONANZA B BOSCO 8 BRAFFITS 8 8RIDGER e BROOKINGS 5 80NAPARTE A BOSrET B 6FAGG C BRIDGESON D BROOKLYN C/D BDNCLAIR 8 BOSLER 0 BRAHAM B BRIDGESON. DRAINED C BROOKMAN D BOND D SOSO 0 BRAILSFORD C BRIDGET E BROOKSHIRE C DON15FARM D BOSOUE 8 BRAINERD C eRIDGEWATER 6 BROOKSIDE C BONDMAN D BOSSOURG D BRALLIER D BRIEDWELL 8 BROOKSTON B/D BONDRANCH D BOSSBURG, DRAINED C SPAM C BRIEF B BROOKSTON, STONY 0 BONDUEL C VOSTONM C BRAMARD 0 BRIER D BROOKSVILLE D BONE D BOSTRU D BRAMLETT C BRIGGS A BROOME B BONEEK B BOSTWICK 6 BRAMWELL C BRIGGSDALE C BROPHY A/D BONEYARD C BOSVILLE D BRANCH 6 SPIGGSVILLE C BROSE D BONFIELD B BOSWELL 0 BRANCROFT C I BRIGHTON e/Dj BROSELEY B BONFRI C BOSWORTH D BRAND D 8 R I GH TWOOD B BROSS B SONG A BOTELLA B OPANDENBUqG A BRILEY 6 BROUGHTON 0 BONHAM C BOTHWELL 5 BRANDON B BRILL 8 BROWARD C SONIFAY A f SOTHWI C BRANDYWINE C BRILLIANT 8 BROWER a BONILLA 6 BOTON 8 BRANFORD 6 BRIMFIELD C/D1 BROWNBEAR C BONITA 0 SOTTINEAU C BRANHAM C BRIMLEY 0 1 BPOWNDELL D ODNJEA D BOTTLE C ORANSCOMO B DRIMSTONE D BPOWNELL B BONN D BOTTLEROCK C BRANTFORD B OR NEGAR E EPOWNFIELD A BONNEAU A BOULDER a BRANTLEY C BRINGMEE 0 1 EPOWNLEE B BONNELL C BOULDER LAKE D BRANYON D BRINKER C I BROWNRIGG D BONNER B BOULDER POINT E SPASHEAP C BRINKERT C BROWNSCOMBE C BONNERDALE B BOULDERCREEK B BRASSFIELD 8 BRINKERTON D BROWNSCREEK B BONNET 0 BOULDIN B BRATTON B BRINNUM D BROWNSDALE C BONNEVILLE A BOULFLAT C BPAUN C BRINNUM. DRAIt4E0 C eROWNSTO 8 80NNICK A BOUNCER 0 BRAVANE D BRIONES B BROWNSVILLE C BONNIE C/Dj BOUNDARY B 13RAWLEY D BRIOS A BROWNTON C/L BONNIE'. PONDED C BOURBON 6 ORAXTON C BRISBANE e eROXON B BONNYDOON D BOURNE C BRAY D BRISCO e BROYLES 0 BONO D SOUSIC D BPAYTCN C BRISCOT D BRUBECK 0 SONSALL D BOW D BRAZILTON D BRISCOT. DRAINED C I BRUCE B/D BONTA 8 SOWBAC C BRAZITO A SPISKY 0 1 BRUELLA 6 BONTI C BOWBELLS 5 ePAZITO. THICK 8 BRISTOW D BRUELLA. HARD C BONVIER C BOWDISH C SURFACE BRITTO D sueSTRATUM BONWIER. GRADED 0 BOWDLE 8 BRAZ IT% TH I CK C BRITTON D BRUFFY a BONZ C BOWDOIN D SURIAC . SR I TWATER e BRUHEL B BOOF 0RD C BOWDRE C SALINE-ALKALI BROAD C BRUIN 8 BOOFUSS D BOWEN C BRAZON C BROAD CANYON 0 BRUMAN B BOOKCLIFF B BOWERS C bRAZORIA D BROADALBIN C BRUMBAUGH C BOOKER D BOWES S BRECKENRIDGE B/D1 BROADAX 9 1 BRUNCAN 0 BOOKOUT C BOWLIE B SPECKNOCK R BROADBROOK C BRUNDAGE D BOOKWOOD B BGW AKE C BRECKSVILLE C BROADHEAD C BRUNEEL 0 BOOMER B BOWLUS B BREECE B BROADHURST D 8PUNELOA D SOOMSTICK D BOWMAN C BREGAR D SPOADMOOR C BRUNO A BOOMTOWN D BOWMANSVILLE B/D4 BREIEN P PROADUS B BRUNSWICK 8 BOONE A BOWNS C I EPEKO B BROADWELL 0 BRUNZELL 8 OONESBORO 6 BOWSTRING AIDI SPEMER C I SPOSETT C BRUSHCREEK C BOONEVILLE a BOXELDER C I ePEMER. SANDY e I BROCK D BRUSHCREEK 8 BOONTON C I BOXFORD C I SUBSTRATUM I BROCKET C BRUSSELS C BOONVILLE C I eOXVILLE C I BREMO C SPOCKGULCH C BRUSSETT 8 BOONVILLE D I BOXWELL C I BREMS A SPOCKLISS B BRYAN A BOOTH B BRENDA C BROCKMAN C BRYANT B BOOTHBAY CC BOYCE D BRENHAM C BROCKO , e BRYARLY D BOOTJACK D BOYD D BRENNAN 6 BROCKPORT D BRYCAN B BOOTS A/Dj BOYER B BRENNER D BROCKROAD C BRYCE D BOGUILLAS C BOYETT 6 BRENT D BROCKSOURG 6 BAYMAN B BORACHO C BOYKIN B BRENTON @e BROCKTON D BRYSTAL 6 50RAH C BOYLE D BRENTSVILLE C BROCKWAY 8 Bus C BORAVALL D BOYSAG D SPENTWoo6 B BROCKWELL 8 OUBUS B BORDA D BOYSEN D BRESSA C BRODALE C BUCAN C BORDEAUX 8 BOZE B I BRESSER B BRODY C SUCAN, GRAVELLY D BORDEN 8 BOZEMAN e I OREVARD a BROE B BUCHANAN C SORDE P B BRABAS D I BREVATOR C BROGAN 8 SUCHEL D BOREALIS D SPACE C I BREVORT 8/01 BROGDON 6 1 BUCHENAU C NOTES' TWO HYDROLOGIC SOIL GROUPS SUCH AS B/C INDICATES THE DRAINED/UNDRAINED SITUATION. MODIFIERS SHOWN. E.G., BEDROCK SUBSTRATUM. REFER TO A SPECIFIC SOIL SERIES PHASE FOUND IN SOIL MAP LEGEND. (210-VI-TR-55, Second Ed., June 1986) A-7 Exhibit A -1, continued: Hydrologic soil groups for United States soils BUCHENAU. THICK 9 BURCHELL C I CAPO ROJO C I CALODO C I CANTEEN e SOLUM OUR DETT C I CAeOOSE 8 1 CALOOSA C I CANTEY 0 BUCKAROO C BUREN C I CABOT D CALOUSE 0 CANTINA C BUCKBAY C BURGESS C I CAEPILLO C CALPAC 8 CANTON 8 BUCKCREEK C BURGI B I CABSTON B CALPEAK D CANTON BEND C BUCKEYE C BURIBURI C I CACHE D CALPINE 0 CANTRIL 8 BUCKHALL 8 BURKE C CACIGUE C CALROY 8 CANTUA 0 BUCKHOUSE B I BURKETOWN C CACTUSFLAT C CALUME 8 1 CANTUCHE 0 BUCKING A BURKEVILLE D CADDO D CALVERTON C CANUTIO B BUCKLAKE C BURKHARDT e CADEVILLE D CALVIN C CANWALL C BUCKLAND C I BURLEIGH A/D1 CADILLAC A CALVISTA D CANYON D BUCKLE 8 BURLESON D CADIZ P CALWOODS D CAPAC C BUCKLEBAR 3 BURLEWASH D CADMUS 0 CALZACORTA D GARAY D BUCKLEY 0 BURLINGTON A, CADOWA D CAMAGUEY 0 CAPE D BUCKLICK C OURMAH D CAESAR A CAMARGO 8 CAPE FEAR D BUCKLICK. THICK 8 BURNAC 0 CAGEY C CAMARILLO C CAPEHORN D SOLUM BUPNBOROUGH 8 CAGLE C CAMARILLO. DRAINED 0 1 CAPERS D BUCKLON D SURNEL C CAGUABO D CAMAS A CAPERTON D BUCKNELL D BURNETTE C CA6WIN B CAMAS. STONY 8 CARHOP 8 BUCKNEY B BURNHAM 0 CAHABA B CAMATTA D CAPILLO C BUCKPEAK 8 BURNSIDE 8 CAHONA B CAMBARGE 8 CAPISTRANO a BUCKS 8 BURNSVILLE B CAID B CAMBERN C CAPITAN D BUCKSH07 8 BURNSWICK B CAINHOY A CAMSEPT C CAPJAC C BUCKSKIN C BURNT LAKE A CAIRO D CAMBETH C CAPLEN 0 BUCKTON B BURN'TRIVER E' CAJALCO C CAMBRIA 0 CARLE$ D BUDE C I BURR D f CAJETE e I CAMBRIDGE C I CAPLES. DRAINED C BUDIHOL D BURR I I A D CAJON, OVERWASH A CAMDEN e CARONA C BUDLEWIS C BURROOS V I LLF C CAJON. LOAMY A CAMEEK D CAPOOSE C BUELL 9 BURSLEY D SUBSTRATUM CAMELBACK 0 CAPPS B BUENA VISTA 9 BURSON C CAJON. SILTY A CAMEO e CAPSHAW C BUFFARAN D BURT D SUBSTRATUM CAMERON D CAPTINA C BUFFCREEK B BURTON 0 CAJON. ALKALI, A CAMILLUS 0 CAPTIVA B/D BUFFINGTON 3 BURWELL C CYEPWASH CAMINO C CAPULIN 8 BUFFMEYER S BUSBY e CAJON. e CAMPANA 8 CARACOLES D SUFFORK C BUSE 6 SALINE-ALKALI CAMPBELL, MUCK C CARADAN D BUFTON C BUSHER 6 CAJON, COOL. A I SUBSTRATUM CARALAMPI 8 BUHRIG C EUSHMAN 5 OVERWASH CAMPBELL. DRAINED B CAPSENGLE 0 BUICK C BUSHNELL C CAJON. GRAVELLY A CAMPBELLTON C CARSO C BUIST 0 BUSHVALLEY D I CAJON. COOL A CAMPCREEK C CARBOL D BUKO 8 BUSKA 6 1 CAJON. WARM A CAMPIA B CARBONA D BUKO. WET C BUSSY C I CALABAR D CAMPO C I CARBONDALE A/D SUKREEK 0 BUSTER e CALABASAS 0 CAMPONE C I CARCITY D BULAKE D I BUSTI C CALAHINE D CAMPSPASS 8 CARDENAS D SULKLEY C BUSYWILD 8 CALAMITY D CAMPUS B CARDIFF 8 BULL RUN 0 BUTANO C CALA-L:S A. CAWRODEN C CARDIGAN B BULL RUN. HARDPAN C eUTCHE 0 CALAVERAS B CANA C CARDINGTON C SUBSTRATUM BUTLER 0 CALAWAH E CANAAN C CAPDON D BULL TRAIL 13 BUTLERTOWN C I CALCO E/Dj CANADIAN 8 1 CAREFREE D 8ULLARDS 8 BUTTERFIELD C I CALCOUSTA B/D1 CANADICE 0 1 CAREY B OULLCPEEK D BUTTERMILK 8 CALCROSS 9@ CANALOU 5 CAREY LAKE B BULLFLAT B BUTTERS 8 CALD C CANANDAIGUA D CARGENT 8 SULLFOR C EUTTON D CALDER D CANASEPAGA C CARGILL C BULLION 0 eUTTONHOOK 8 CALDERWOOD D CANAVERAL C CARIBEL 6 BULLNEL C eUTTONWILLOW C CALDWELL C CANBURN D CARIBOU 8 BULLOCK D 6UXIN D CALDWELL. DRAINED B CANDELARIA 8 CARIOCA a GULLREY 6 BUXTON. SOMEWHAT 0 1 CALE B CANDELERD C CARIS C BULLUMP 5 j PDORLY DRAINED CALEAST C CANDERLY B CARJO C BULLYARD 8 BUXTON. STONY C CALEe B CANDLER A CARLIN D BULLWINKLE D BUXTON. MODERATELY C CALECIDNI A e CANDLESTICK C I CAPLINTON C BULLY 9 WELL DRAINED CALENDAR C CANDOR A I CARLISLE A/D BULOW A BUZZN A CALERA C CANE C I CARLITO D BUNCOMBE A BYARS D CALHI A CANEADEA D I CARLOS A/D BUNDO 8 BYBEE 0 CALHOUN 0 CANEEK E CARLOTTA 8 UUNDORF D eYINGTON C CALICO C CANELO 0 CARLOW D BUNDY C eYLEP C CALICOTT A CANEST D CARLSBAD C BVNDYMAN C SYLO e CALIFON C CANEYYILLE C CARLSBOPG A SUNEJUG C BYNUM C CALIMUS P CANEZ 8 CARLSON a BUNKER 13 OYRAM C CAL I TA B CANFIELD C CARLSTROM C BUNKERHILL 0 eYRNIE D CAL I ZA B 1 CANISTEO E/Dj CARLTON C BUNKWATER C CABALLO E CALKINS C I CANISTEO. STONY 0 1 CARMACK B BUNKY C CABARTON v CALLAeO C CANZWE 0 1 CARMEL C BUNNELL 6 CABBA D CALLAHAN' D CANLON D I CARMI B BUNSELMEJER 0 CASBART C I CALLAN C CANNELL 0 CARMICHAEL C BUNTINGVILLE C CA90ART. STONY 0 1 CALLEGUAS D CANNING 6 CARMODY C BUNYAN 8 CAPBART. WARM D CALLINGS C CANNON 8 CARNASAW C BURBANK A CASEZCN D CALLISBURG C CANNONVILLE D CARNEGIE C BURCH 8 CABIN 6 CALLOWAY C CANOE 5 CARNERD C BURCHAM 6 1 CA91NET C CALMAR e , I CANOVA B/Dj CARNEY D BURCHARD B I CABLE B/D1 CALNEVA C I CANTALA B I CAROLINE C NOTES: TWO HYDROLOGIC SOIL GROU PS SUCH AS B/C INDICATES THE DRAINED/UNDRAINED SITUATION. MODIFIERS SHOWN. E.G., BEDROCK SUBSTRATUM . REFER TO A SPECIFIC SOIL SERIES PHASE FOUND IN SOIL MAP LEGEND. A-8 (210-VI-TR-55, Second Ed., June 1986) Exhibit A-1, continued: Hydrologic soil gToups for United States soils CAROLLO D ' CATALPA., C CENCOVE B I CHARLOTTE 8/D1 CHEWACLA C CARON AIDI CATAMOU D CESIZA 0 1 CHARLTON B I CHEWELAH C CARON ' MARSHY D I CATANO A I CENTENARY A I CHAPNOCK C I CHEYENNE 8 CARPENT EA B CATARACT 8 CENTER . C I CHARNOCK. B I CHIA D CARR 3 CATARINA D CENTER Ci;tEEK C I MODERATELY WET I CHIARA D CARRACAS D CATASKA 0 CENTERSURG C I CHARD C I CHICANE C CARRANZA B CATAULA 5 CENTERFIELD P I CHASE C I CHICKANTNA 0 CARRCREEK 8 CATCHELL C CENTERVILLE 0 1 CHASEeURG a I CHICKAHOMINY D CARRIZALES A CATELLI 6 CENTISSIMA B I CHASEVILLE A I CHICKAMAN 8 CARR I ZO A CATERL 6 CENTRAL POINT 6 1 CHASKA B/Dj CHICKASAW C CARROLLS D CATH C CENTRALIA B I CHASTAIN D CHICKASHA a CARRYBACK C CATHARPIN C CfNIPALPEAK C CHATEURN B CHICKREEK D CARSITAS A CATHAY C CEPBAT D CHATCOLET B CHICOLETE C CARSITAS. WET 6 CATHCART 6 CERESCO 6 CHATEAU D CHICOTE D CARSON D CATHEDRAL D CERINI E CHATFIELD 3 CHIEFLAND B CARSTAIRS A CATHEEN 8 CERINI. ALKALI C CHATHAM 8 CHIGLEY C CARSTUMP C CATHERINE C CEPLIN C CHATSWORTH D CHIKAMIN C CART 6 CATHLAMFT F CERR ILLOS L CHATT C CHILAO C CARTAGENA C I CATHRO A/Dj CEPRC C CHATUGE 'D CHILCDTT C CARTECAY C I CATILLA e I CESTNIK C CHAUMONT D CHILCOTT. GRAVELLY D CARTEr D I CATLA D I CETPACK e CHAUNCEY C CHILCOTT. COOL D CARTERET D I CATLETT C/D1 CHACHA C CHAUTAUQUA C CHILDS B CARTHAGE 9 CATLIN 11 11 CHACON C CHAVIES B CHILGREN C CARUSO C CATMAN D CHAD C CHAWANAKEE C CHILHOWIE C CARUTHERSVILLE B C4TNIP D I CHAFFEE D CHAYSON C CHILI a CARVER A CATOCTIN C CHAGPIN E CHAZOS C CHILICGTAL B CARWILE D CATOOSA e CHAIN C CHEADLE 0 CHILKOOT D CARY I OWN D CATPOIN I A CPAIRFS' 6/C@ CHEAHA D I CHILL 0 CAPYVILLF a CATTCREEK El CHA IRES V CHE90YGAN 6 1 CHILLUM CASA GRANDE C CATTCREEK. A DEPRESSIONAL CHECHI D I CHILMARK CASABONNE 8 GRAVELLY I CHAIX B CHECKER C I CHILOQUIN D CASAGA C SUBSTRATUM I C14ALCO 0 CHECKETT 0 1 CHILPEP 0 CASCADE C CATTO D t CHALFONT C CHEDATNA B I CHILSON D CASCAJO. A CAUDLE C CHALKCREEK F CHEDEHAP B CH;LTON B CASCAJO COBBLY 3 CAUSEWA C CHALMERS B/Dj CHEDESKI B CH MAYO 0 CASCILLA 13 CAUSEY B CHAMA. MODERATELY 0 1 CHEDSEY C I CHIME C CASCO CAVAL 0 SLOW PEQ4 I CHEEBE D I CHIMENEA 0 CASE 5 CAVANAUGH C CHAMA. MODERATE f I CHEEKTOWAGA D I CHIMNEY A CASEY D CAVE D PERMEABILITY CHEESEMAN e I CHI NAPO I NT 1) CASHEL C CAVEGULCH B CHAMA OOL C CHEHALEM C CHINCAP 8 CASHIERS 6 CAVEHILL C CHAMA4C 5 CHEHALIS 5 CHINCHALLO D CASHION 0 CAVELT 0 CHAMBEAV 0 CHEHULPUM D CHINCOTEAGUE 0 CASHMERE 8 r CAVENDISH B I CHAMEEPIND C I CHELAN B I CHINEN D CASHMONT 5 1 CAVO D I C ).A MEEPL A IN B I CHELSEA A I CHINIAK A CASITC D CAVOCE C CHA M IS 6 D CHEMAWA B I CHINO C CASLO D CAVOUR D CHAb1GKA C CHEN D I CHINO. DRAINED a CASLO, MODERATELY C CAYA D CHAMPAGNE B CHENA A I CHINOOK a WET CAYAGUA C CHAMPION 5 CHENANGO A I CHINVAR C CASMOS D CAYTON C CHANAC 8 CHENAULT S I CHIPENDALE 0 CASPAR B CAYUGA C CHANCE 0 CHENEGA A I CHIPENHILL D CASPIANA 11 C AYUS Ep., 8 CHANCELLOR C CHENEY B I CHIPETA D CASS B CAZADE C CHANDLER 8 CHENNEBY C I CHIPLEY C CASSIA C CAZADOP e CHANEY C CHENDWETH 6 1 CHIPMAN. D CASSIA. MODERATELY 6 CAZENOVIA e CHANNAHON D CHEDAH B I SALINE-ALKALI WELL DRAINED CEBOLIA C CHANNING El CHEQUEST C I CHIPMAN. C CASSIRO 9 CEeOLLETA C I CHAHTA 0 CHER IONI 0 1 MODERATELY WET CASSIPO. STONY C CE80NE C I CHANTIER D CHEROKEE D I CHIPMAN. DRAINED D CASSOLAPY C CEBOYA C I CHAPANOK= C CHERRY C I CHIPOLA A CASTAIC C CECIL 9 1 CHAPERTON C CHERRY. CALCAREOUS 8 1 CHIPPENY D CASTALIA C CEDA B CHAPIN C CHERRY. COOL B I CHIPPEWA D CASTANA 9 CEDAR BUTTE D CHAPMAN e CHERRY SPRING C I CHIRENO 0 CASTELL C CE9AR NOUNTAIN 1) C..1OTL' 0 CHERRYHILL 8 CH;PICAHUA., 0 CASTELLEIA fj CEDkRAN 0 CHAPPE A CHERUM 6 CH PPCHATT B CASTELLO 9 1 CEDARBLUFF C I CHAPPUIS C I CHESAW A CHISCA D CASTEPHEN C I CEDARCREEK C I CHAQUA b I CHESHIRE B CHISMORE D CASTILE 5 1 CEDAPFALLS k CFIAF?CC C CHESHNINA C CHISOLM A CASTING C I CEDAPGAP 0 ChAPCOL B CHESNIMNUS 8 1 CHISPA e CASTINO. NONSTONY D CEDAPHILL 6 CHAP e CHESTATEE 6 CHISTOCHINA 8 CASTLE D CEDARPASS E. CHAPDC.T.14 C CHESTER B CH TINA C CASTLEVALE D CEDONIA E, CHAPETTE C CHESTERTON D I CHITTUIA D CASTNER D CEEK 6 1 CHARGO C I CHESTNUT 8 t CHITWOOD 0 CASIO C CELACY C I CHARITON C I CHESTONIA 0 1 CHIVATO C CAITIN I CELESTE D CHARLEBOJIS. 11 CHESUNCOOK C I CHIWAUKUM 6 CASTRC 0 CELETON 1) CHARLESO S WET C CHETCO D CHIWAWA 8 CASTROVILLE B CELINA C CHARLES C CHETEK B CHO C CASUSE D CELIO C CHARLESTON C ChETWYND E CHOATES C CASVAPE D CELLAR D CHARLEVOIX P CHEVAL C CHOBEE B/D CASWELL B CELSOSPRINGS C CPAPLOS F. CHEVELON C CHOeEE. 0 CATALINA 8 CEMBER C CHARLOS. WET 0 CHEVIOT R I DEPPESSIONAL r, GIES: IWO HYDROLOGIC SOIL GROUPS SUCH AS B/C INDICATES THE DPAINED/UNDRAINELI SITUATION. MODIFIERS SHOWN, E.G.. BEDPOCY SUBSIPAIUM, REFER TO A SPECIFIC SOIL SERIES PHASE FOUND IN SOIL MAP LEGEND. (210-VI-TR-55, Second Ed., June 1986) A-9 Exhibit A-1, continued: Hydrologic soil,groups for United States soils CHOBEE. LIMESTONE D I CLALLAM C CLIOPER D COKEL 8 COLV:N@ OVERBLOWN. C SUBSTRATUM . I CLAM,6ULCH 0 CLIPPER. DRAINED C COKER D SAL N CHOCCOLOCCO CLAM C I'D CLODINE D COKESBURY D COLWOOD BID CHOCK D CLAMP D CLONTARF E COKEVILLE 0 COLY a CMOCORUA D CLANA A CLOQUALLUM C I COLAND B/Dj COLYER D CHOICE D CLANALPINE C CLOQUATO v I COLBAR C I COMAD A CHOOP D CLANTON C CLOQUET B I COLBERT 0 1 COMAR C CHOPTIE D CLAPPER B CLOSKEY C I COLOURN C I COMBE B CHORALMONT B CLAREMORE D I CLOTHO C/01 COLBY 8 1 COMBS B CHOSKA 8 CLARENCE D I CLOUD PEAK C COLDCREEK 6 1 COMER 8 CHOTEAU C CLARENDON C CLOUD RIM 8 CCLDENT C I COMETA D CHOWAN D CLARESON C CLOUDCROFT D CCLE C I COMFOPT D CHRIS C CLAREVILLE C CLOUDLAND C COLEMAN C I COMFREY BID CHRISMAN D CLARINDA D CLOUGH D COLEMANTOWN C/01 COMFREY. PDNDED D CHRISTIAN C CLARION 8 CLOVELLY D COLESTINE C I COMITAS A CHRISTIANA C CLARITA D CLOVER SPRINGS B COLFAX C COMLY C CHRISTIANBURG C CLARK P CLOVERDALE D COLHILL 0 COMMERCE C CHRISTINE D CLARK FORK A CLOYERLAND C COLIBRO 8 COMMSKI 5 CHRISTOFF C CLARKELEN 8 CLOVIS B COLINAS 8 come A CHRISTY C CLARKRANGE C CLOWERS 0 COLITA D COMOfkAEI D CHRODER 8 CLARKSBURG C CLOWERS. WET C COLLAMER C I COMODORE D CHROME C CLARKSOALE C CLOWFIN B COLLARD e I COMORO 6 CHRYSLER C CLARKSVILLE 8 1 CLUFF C COLLAYOMI 8 1 COMPASS B CHUALAR 0 CLARNO 9 CLUNIE 0 COLLORAN D I COMPTCHE 0 CHUBBS C CLATO F CLUPDE p COLLBPAN. COEBLY C COMSTOCK C CHUCKANUT 8 CLATSOP 0 CLURO 8 COLLEGEDALE C COMUS B CHUCKAWALLA B CLAUNCH B I CLYDE E/Dj COLLEGIATE D I CONA C CHUCKLES a CLAVERACK C I CLYMER e COLLETT I CONABY BID CHUCKRIDGE D CLAVICON C I COACHELLA B COLLETT. DRAINED C I CONALB 8 CHUGCREEK C CLAWSON C I COACHELLA. WET C COLLIER A I CONANT C CHUGTER B CLAYBUqN 0 1 COAHUILA 8 COLLINGTON 8 1 CONASAUGA C CHUIT 8 CLAYSPRINGS 0 1 COAL CREEK D COLLINS C CONATA D CHULITNA B CLAYTON 8 1 COALBANK S COLLINSTON S CONaDY D CHUMALL B CLE FLUM C I COALDALE 0 COLLINSVILLE D CONCEPCION D CHUMMY D CLEAR LAKE D I COALDRAW D COLLINWOOD C CONCHAS C CHUMSTICK D CLEAR LAKE. C I COALMONT C COLMA B CONCHO C CHUPADERA C STRATIFIED COAMO C COLMOR 8 CONCONVLLY a CHURCH D SUBSTRATUM COARSEGOLO C COLNEYEE 0 1 CONCORD D CHURCHILL D CLEAR LAKE, C CCATSBURG D COLD B/Dj CONDA D CHURCHVILLE D MODERATELY WE T COBAT 0 COLO. DRAINED B I CONDIE 8 CHURN B CLEARBROOK 0 CCRATUS C COLO@KNDNFLOODED B CONDIT D CHUSKA D CLEARFIELD C COBS a COLO UM 8 COND N C CHUTE A CLEARFORK D I COBBSPORK D COLOMA A CONE A CIALES D I CLEARWATER D I COSEN D CDLOMBO B CONECUH D CIBEQUE 0 1 CLEAVAGE D I COSEY E COLONA C CONEJO D I CLEAVER D I COBLE D I COLONIE A I CONEJO. WET CISO C CIBOLA 8 1 CLEAVMOR 0 1 CCB0C C COLONVILLE C I CONEJO. GRAVELLY C CID C CLEBIT D COBPE C COLORADO 8 1 SUBSTRATUM CIDRAL C CLEGG 8 COBURG C COLOROCK D I CONESTOGA 8 CIENEBA C CLEGHORN C COCHETOPA C COLOROW 8 1 CONESUS B CIEND D CLEMAN B COCHINA D COLOSO D I CONETOE A CIERVO. ALKALI D CLEMENTINE C COCHITI C COLOSSE A I CONGAREE B CIERVO. ALKALI. D CLEMENTINE. 8 COCHRAN C COLP C I CONGER C WET DRAINED COCOA A COLRAIN 8 1 CONGER, COBELY D CIERVO. RECLAIMED C CLEMS e COCOORIE C COLSAVAGE C I SUBSTRATUM CIFIC C I CLEMVILLE B COCOLALLA D COLTER 8 1 CONGLE 8 CIMARRON C CLENDENEN D COCOLALLA. DRAINED C COLTHORP 0 1 CON) D CINCINNATI C CLEONE B COOLEY B I COLTON A I CONIC C CINCO A CLEORA e CODOPUS C COLTROOP 0 1 CONLEN a CINDERHUPST D CLERF C CODOUTN D COLTS NECK B I CONLEY C CINEBAR B CLEPGERN B CODYLAKE 8 COLUMBIA. MUCK 8 1 CONNEAUT C CINNADALE 0 CLERMONT 0 COE A SUBSTRATUM I CONNEL B CINNAMON 8 CLEVELAND C COEROCK D COLUMBIA. DRAINED, e I CONNERTON 6 CINTRONA D CLEVERLY B COESSE C/Dj CLAY SUBSTRATUM CONOSTA C CIPRIANO D I CLICK A J.COFF C I COLUMBIA. C CONOTTON a CIRAC B I CLIFFDELL 5 1 COFFEEN 6 MODERATELY WET CONOVER C CIRCLEBACK A CLIFFDOWN 8 CCGGCN B COLUMB:A: DRAINED 0 CONOWINGO C CIRCLEBAR C CLIFFHOUSE C COGNA a COLUMB A FLOODED C CONPEAK D CIRCLEVILLE C CLIFFORD C COGSWELL C COLUMBIA. CLAY C I CONRAD AID Cisco 0 CLIFSAND 8 COHAGEN D SUBSTRATUM I CONROE B CISNE 0 CLIFTERSON 8 COHASSET e COLUMBIA, SLOPING B I CONSEJO C CISPUS 8 CLIFTON B I COHOCTAH B/Dj COLUMBINE A I CONSER D CITADEL C CLIFTY 8 1 COHOCTAH, SANDY D I COLUMBUS C I CONSTABLE A CITICO B CLIMARA 0 1 SUBSTRATUM I COLUSA C I CONSTANCIA D CITRONELLE D CLIMAX D I COHOE 8 1 COLVAPD a I CONSUMO a CLACKAMAS 0 CLIME C I COILS C COLVILLE D I CONTACT A CLAIBORNE 8 CLINETOP D CCIT D COLVILLE. DRAINED C I CONTEE D CLAIRE A I CLINT C COKEDALE D I COLVIN C/Dj CONTIDE 0 CLAIREMONT 8 1 CLINTON B COKEDALE. DRAINED C I COLVIN. SALINE C I CONTINE C NOTES: TWO HYDROLOGIC SOIL GROUPS SUCH AS BIC INDICATES THE DRAINED/UNDRAINEO SITUATION. MODIFIERS SHOWN. E.G.. BEDROCK SUBSTRATUM. REFER TO A SPECIFIC SOIL SERIES PHASE FOUND IN SOIL MAP LEGEND. A-110 (210-VI-TR-55, Second Ed., June 1986) Exhibit A-1, continued: Hydrologic soil groups for United States soils CONTINENTAL C CORRALITOS. SILTY B ICOWERS 8 CREVA D CUBCREEK 8 CONTO a SUBSTRATUM COWES16LE4 8 CREVASSE A CUBERANT B CON TRA COSTA C CORRECO C COWETA C CREVISCREEK C CUCAMUNGO D CONTRARY 8 CORRIGAN D COWGIL 8 CREWS D CUCHILLAS C CONVENT C CORSON C COWHORN B CRIDER B CUCHO C CODERS 8 CORTA D COVICHE B CRIMS D CUDAHY D COOK 0 CORTADA 8 COWLAKE 8 CRINKER C CUDAHY;CDRAINED C COOKPORT C CORTEZ D COWLITZ A CRIPPIN e CUDDEB K C COOLBRITH C CORTINA B COWOOD D CRISFIELD 8 CUERDA C COOLIDGE 8 CORTINA. THIN A COWSLY C CRISTO C CUERO 8 COOLVILLE C SURFACE COWTON C I CRISTO. LOAMY CUEqVO C COOMBS 0 CORUNNA 6/01 Cox D CRISTOBAL 8 CUESTA C COONSKIN C CORWIN 8 1CCXLAKE D CRITCHELL 0 CUEVA 0 COOPER 8 CORWITH B ICOXVILLE D CRITTENDEN 0 CUEVITAS D COOSAW B COPY C COXWELL C CROATAN D CUEVOLAND B COOTER C CORYDON 0 COY D CROCKER A I-CULBERTSON a COPAKE 0 COSAD C COYANOSA 0 CROCKETT D I CULDESAC 8 COPALIS S D COYATA C CROESUS C I CULLE@ C COPANO Cc CC OOSEE P 8 COVET A CROFTON B CVLLEOKA -B COPASTON D COSH C COYLE E CROGHAN 8 CULP C COPELAND B/Dj COSHOCTON C COYNE B CROKE 0 CULPEPER C COPELAND. 0 COSKI 8 COYOTECREEK e CROMWELL A CULTUS B DEPRESSIONAL COSTILLA A ICOZAD F CRONKHITE C CULVING C COPEMAN B COSUMNES C COZeEPG 0 CRONKS C CUMBERLAND 8 COPENHAGEN D COTACO C COZTUR D CROOKED D CUMBRES C COPITA B COTAIL 8 CRAFTREE C CROOKED CREEK D CUMLEY C COPPER RIVER D COTANT D CRACKERCREEK B CROOKED CREEK. C CUMMINGS 0 COPPER RIVER. B COTATI C CRACKLER e DRAINED CUMMISKEY 6 LACUSTRINE COTEAU C CRADDOCK 8 CROOKED CREEK, C CUNAR 0 8 SUBSTRATUM COTHA C CRADLEBAUGH D FLOODED CVNDICK 0 COPPER RIVER, TILL 8 COTITO 8 CRADLE8AUGH. C CROOKSTON 8 CUNDIYO B SUBSTRATUM COTO B SALINE-ALKALI CROOM C CUNNINGHAM C COPPER RIVER. B COTOPAXI A CRADLEBAUGH. C CROPLEY D CUPCO C SILTY SUBSTRATUM COTT 8 DRAINED CROPPER D CUPOLA B COPPER RIVER. 8 COTTER 5 CRAFT B CROQUIB D CUPPER B GRAVELLY COTTERAL 5 CRAFTON C CROSBY C CUPPLES C SUBSTRATUM COTTLE 0 CRAGGEY D CROSIER C CUPPY D COPPERCREEK B COTTONEVA C CRAGO e cRoss D I CURABITH A COPPEREID D COTTONTHOMAS 8 CPAGOLA D CROSSPLAIN C CURANT 8 COPPERTON 8 COTTONWOOD C CRAGOSEN 0 CPOSSTELL D CURDLI C COPPOCK 8 COTTRELL C CRA;G e CROSSVILLE B CURECANTI B COPSEY D COTULLA D CPA GMILE BID! CROSWELL A CURHOLLOW D CDOUAT 0 COUCH D CRAIGSVILLE 8 CPOT D CUROB D COQUILLE D COUGARBAY D CRAMER D CROTON D CURRAN C CORA D COUGHANOUR C CRAMONT C CROUCH B CURRIER A CORAL C COULEEDAM D CRANE B CROW C CURRITUCK D CORALLAKE 8 COULSTONE 8 CRANECREEK C CROW CREEK B CURTIN D CORBETT B COULTERG 8 CRANFILL B CROW HILL C CURTIS CREEK 0 CORBILT 8 COULTERVILLE D CRANNLER B I CROWCAMP 0 CURTIS SIDING A CORBIN 0 COUNCELOR B CRANSTON S CROWFLATS 8 CURTTSTOWN 8 CORCEGA C COUNCIL 8 CRARY C CROWFOOT e CUSHENBURY 8 CORDELL D COUNTRYMAN C CRASH B CROWHEART C CUSHING e CORDES 8 COUNTS D CRATEP LAKE B CROWLEY 0 CUSHMAN C CORDESTON B CDUPEE 8 CRATEPMO C CPOWNEST D CUSHOOL C CORDOVA C/DI COUPEVILLE C CRAVEN C CROWSHAW e CUSICK 1@ CORDY B I COURT B CRAWFOPO D CROWTHER D CUSTCO B CORIFF B/D: COURTHOUSE D CRAWLEYVILLE 8 CROYDON B CUSTER D CORI NTH C COURTLAND B CREAL C CROZIER C CUSTER. DRAINED C CORKSTONE D I COURTNEY D ICREASEY C/D1 CRUCES D I CUTAWAY 8 CORLENA A I COURTROCK 8 1CREDO B I CRUCKTON e I CUTHAND 5 CORLETT A I COURVILLE 8 1CREED C I CRUICKSHANK C I CUTHBERT C CORLEY SIDI COUSE C ICREEDMOOR C I CRUISER B I CUTHBERT. GRADED D CORM:NT A/01 COUSHATTA 11 CREEL C CRUMARINE 9 1 CUTOFF C CORN LIA A COUTIS a CrEEMON 0 CRUME B I CUTSHIN B CORNELIUS C I COVE D CREFORK C CRUMP D I CUTZ D CORNHILL B COVELAND 0 CREIGHTON B CRUMP, DRAINED C I CUYAMA V CORNICK D COVELAND. DRAINED C CRELDON C CRUNKER B I CUYON A CORNING C COVELLO C CREN B CRUNKVAR A I CYAN B CORNISH C COVERT A CREOLE D CRUST D CYCLONE. BID CORNUTT C COVEYTOWN C CRESAL B CRUTCH C CYLINDE 0 CORNVILLE B COVILLE B CPESBARD C CRUTCHER C CYMRIC 0 COROLLA D COVING C CRESCO C CRUZE C CYNTHIANA D CORONA 8 COVINGTON 0 1CRESKEN B CRYLUHA C CYNTHIANIA D CORONACA 8 COWAN B CRESPIN C CRYSTAL LAKE 8 CYPHER D COROZAL C COWARTS C CREST C CRYSTAL SPRINGS D CYRIL COROZO A COWCO 8 CRESTLINE B CRYSTALBUTTE e CZAR CORPENING D COWDEN 0 CRESTMAN D CAYSTALCREEK 5 DABNEY A CORRAL C COWDREY C CRESTVALE C CUATE C DABOB C CORRALITOS A COWEEMAN D CRETE C CUeA E DACKER C NOTES: TWO HYDROLOGIC SOIL GROUPS SUCH AS BIC INDICATES THE DRAINED/UNDRAINED SITUATION. MODIFIERS SHOWN. E.G.. BEDROCK SUBSTRATUM. REFER TO A SPECIFIC SOIL SERIES PHASE FOUND IN SOIL MAP LEGEND. (210-VI-TR-55, Second Ed., June 1986) A-11 Exhibit A-1, continued: Hydrologic soil groups for United States soils DACONO, 5 DARL&ND H I DECKEPVILLE. C DELLO;RCLAY 8 DESC"ELL' B DACONO COBBLY C CARLEY C CDRA,1NED SUBS ATUM DESCHUTE C SUBSTRATUM DARLING 8 ECL 0 DELLROSE 13 DESCOT a DACORE B DARMSTADT D DECOLNEY 8 DELLS C DESEED C DACOSTA D DARNELL C DFCORDOVA 8 DELLWOOD A DESERET C DADE A DARNEN 6 DECRAM C DELMA C DESHA D DADINA 0 DAROW C DFCROSS B DELMITA C DESHLER C CAGAN B DARR 0 DECY E DELMONT 0 DESKAMP C DAGFLAT C DARRET C DEDAS 1) DELNORTE C DESMET 8 DAGLUM D DARROCH B DEDMOUNT C DELOAD 0 DESOLATION 8 DAGOR 8 DARROCH, EEDROCK C I DEDRICK 0 1 DELOSS 0/D1 DESPAIN a DAGUAO C SU8ST9ATUM DEE C DELP A DFSTAZO 8 DAGUEY C DARROUZETT C DFECPEE B DELPHI 0 DESTER C DAHAR C DAPSIL C OEEFAN C DELPHILL C DETER C DAHLOUIST 13 DARST C DEEMER 8 DELPIEDRA D DETOUR 0 DAICK D DART A DFEPCUT D DELPLAIN D DETRA B DAIGLE C DARTMOUTH 0 DEEPEEK D DELPOINT C DETPOIT C DAILEY A DARVEY B DEEPWATER e I DELRAY 5/D1 DEUNAH D DAILEY. LOAMY 8 DARWIN 0 VEER CREEK C DELRAY, D DEV A SUBSTRATUM DASHER 0 DEEP PARK A DEPPESSIONAL DEVADA D DAINT 8 1 CASSEL B/Dj DEERFIELD 8 1 DELRIDGE 0 1 DEVEN D DAKENT 8 CAST 8 DEEPFORD D DELSON C DEVILS D DAKOTA B DATELAND 8 DEEPHORN C DELTAJO C DEVILSCREEK C DALBO 0 DATEMAN C DEEPLODGE C DELTON 8 DEVTLSGAIT D DALBY D OATIL 6 VEEPTON A DELWIN A DEVILSGAIT. 8 DALCAN C DATINO D DEEPTRAIL C DELYNDIA A DRAINED, DALCO D DATIND. STONY 8 DEEPWOOD 8/01 DEMAR D I OCCASIONALLY DALE 8 1 DATWYLER C DEETZ A DEMAST e DEVILSGAIT. B DALECREEK C I DAULTON D DEFENEAUGH B CEMENT S DRAINED DALEVILLE 0 1 DAVEY 8 DEFIANCE D DEMING B DEVINE C DALHART 0 1 DAVEY. WARM A DEFLEP B DEMKY D DEVISADERO C DALIAN B DAVIDELL B DEFCRD A/r.,j DEMNFR B I CEVOE 0 DALIG E! DAVIDSON 8 DEGARMO D DEMOGUL B DEVOIGNES D DALKENA C DAVIS B DEGNEP 6 DEMONA C DEVOIGNES, DRAINED C DALLAM 8 DAVISON 8 1 VEGOLA B DEMONTREVILLE 8 DEVOIGNES. C DALLARDSYILLE C OAVTONE B I DEGRAND 0 DEMOPOLIS C PROTECTED DALLESPORT a DAWES C I DEGREY D DEMOPOLIS, COBBLY D DEVOL a DALTON C I DAWHOO B/Dj OFHANA E DEMOSS D DEVORE 5 DALUPE -31 DAWSON A/Dt DEHART E OEMOX B t DEVOY r- DALZELL C I DAWTONIA C, 1 .0 EH AVE N E DEMPSEY 6 1 DEVRIES C DAMASCUS F/Dj OAXTY C I VEHILL 8 1 DEMPSTER B I DEWAR D CAMERON 5 DAY D I DEHLINGER B I DENAUD B/Dj DEWEY e DAMEWOOD C DAYBELL A DEJARNET 8 DENAY 8 1 DEWEYVILLE D DAMLUIS C DAYSCHOOL S DEKALe C DENSAP C I DEWMINE D DAMON 0 DAYTON 0 DEKOOM 0 DENBY C DEWVILLE a DANA 6 DAYTONA B DEKOVEN D DENCO D DEXTER B DANAHER C DAYVILLE C DEL REY C VENHAWKEN D CIA C DANAVORE 8 DAZE 0 DELA I, DENISON C DIA. WET. SALINE D DANCY 6/Dj OE MASTERS 6 DELAMETER A DENMAN C CIA, WET D CANCAN C j DEACON B I DELANCO C DENMARK D DIABLO D DANDREA C I DEADFALL C I DELAND A DENNIS C CIAGULCH 8 DANDRIDGE D DEADHORSE C DELANEY A DENNOT 0 DIAMANTE a DANFORTH 0 DEADMAN 8 DELANO e DENNY D DIAMOND D DANGBERG D DEADWOOD D DELASSUS C DENROCK D I DIAMOND SPRINGS C DANIA B/Dj DEADYON S DELCO@B D DENTON D DIAMONDVILLE C DANJER 0 1 DEAMA D DELDCTA 0 DENURE 8 DIANEV C DANKO D DEAN B DELECO D DENVER C DIANDLA D DANLEY C DEANDALE 0 1 DELENA D DEPALT D DIASPAP a DANN C DEARBORN 6 DELECN C DEPCOR 6 DIATEE B DANNEMORA 0 DEARYTON C DELEPLAIN D DFPOE D DIAZ C DANSKIN E3 DEATMAN C DELETTE C DEPORT D DIBBLE C CANT 0 DEAVER C DELF INA 8 DEPPY 0 DIBOLL D DANVERS C DEBAa C I DELFT B/C,j DEPUTY C DICK A DANVILLE C DEBENGER C DELGADO 1) DEPA B DICKERSON D DAPHNEDALE C DEBEQUE e DELHI A CERALLO 6 DICKEY 8 DAPOIN C DEBONE D DFLICIAS 5 DERS C DICKINSON. MAP<25 a OARBONNE 6 DEBORAH D DELKS C/D1 DERBY A I DICKINSON. TILL A DARBY C DEBS e DELL C I DERECHO B I SUBSTRATUM DARCO A DEBUTE C DELLEKER 0 1 DERINDA C DICKINSON. MAAT>50 8 DARDANELLE 9 DECAN C I CELLO. OVERWASH A I DERLY 0 DICKINSON. MAAT<50 8 DARDEN A DECANTEL D DELLO, SALINE C I DEROUX C DICKMAN A DARDOOW 0 DECATHON C CELLO. GRAVELLY 1) DERR C DICKSON C DARE D DECATUR B SUBSTRATUM. WET DERRICK 8 DIDDY 0 DARFUR B/D1 DECCA 8 1 DELLO. A DES MOINES, DRY 8 DIEHLSTADT C DARGOL D DECCA. NONGRAVELLY C SALINE-ALKALI DES MOINES. COBBLY C DIERSSEN D OAPIEN C DECHEL 0 CELLO. MODERATELY C DESAN A DIETRICH C DARKBULL 0 DECKER C WET DESART' C I DIGBY 8 DARKCANYON C DECKERVILLE 0 CELLO. DRAINED A DESATCYA C I DIGGER C CARL C DESCALABRADO 0 1 DIGHTON 5 NOTES: TWO HYDROLOGIC SOIL GROUPS SUCH AS B/C INDICATES THE DRAINED/UNDRAINED SITUATION. MODIFIERS SHOWN. E.G.. BEDROCK SUBSTRATUP. REFER TO A SPECIFIC SOIL SERIES PHASE FOUND IN SOIL MAP LEGEND. A-12 (210-VI-TR-55, Second Ed., June 1986) Exhibit A-1, continued: Hydrologic soil groups for United States soils DIGIORGIO 8 DOLAND 8 DOUGAN C DUCHESNE 8 OURFEE C DILANSON D DOLBEE. C DOUGC ITY 0 DUCKMILL D DURHAM B DILL a DOLBEE SANDY a DOUGCLIFF D DUCKREE B DURKEE C DILLARD C SUBSTRATUM DOUG " D DUCKSTON A/Dj DUROC 8 DILLEY 0 DOLEKEI DOUGHER11 A DUCO D I DURRSTEIN D DILLWYN A DOLEN B DOUGHTY B DUDA A DURST C OILMAN C DOLES C DOUGLAS S DUDGEN D DUSLER C DILTON D DOLLAR C DOUGVILLE e DUDLEY D DUSTON A DILTS D DOLLARD C ODUHIDE D DUEL A DUTCHESS a DIMAL C DOLLARHIDE D DOURO B DUELM A DUTEK A DIMEBOX D DOLLYCLARK C DOVER e DUETTE A DUTTON C DIMMICK D DOLMAN C DOVRAY C/D1 DUFF B I DUVAL 5 DIMO D DOLPH C DOW 6 DUFFAU 8 DUXBURY A DIMYAW C DOLUS C DOWACIAC B DUFFER C OUZEL C DINA C DOME B DOWDE E DUFFERN A DWIGHT D DINCO 8 DOMELL B DOWELLTON D DUFFIELD 0 DWORSHAK a DINES 8 DOMENG;NE C DOWNATA D DUFF So" B DWYER A DINEVO a DOMERI 8 DOWNER P DUFFYMO.T C DYE D DINGLE C DOMEZ 8 DOWNEY 8 DUFORT 8 DYKE 91 DINGLISHNA D DOMINGUEZ C DOWNEYVILLE D DUFUP B I DYLAN D DINGMAN C DOMINIC 8 DOWNS e DUGGINS C DYRENG D DINKELMAN 0 DOMINO C DOYCE B DUGOUT D EACHUS DINKELS 8 DOMINSON A DOYCE. LOAMY C DUGWAY C EACHUSTON DINNEN 8 DOMO 6 SUBSTRATUM DUKES A EAD C OINSDALE B DONA ANA B DOYCE. MODERATELY C OULAC C EAGAR 8 DINUBA C DONAHUE C WET DULCE D EAGLECONE B DINWOODY B DONALD C DOYCE. SANDY C DULEYLAKE C EAGLEPASS D DINZER B DONALDSON a SUBSTRATUM DULLES D EAGLEROCK 6 DIOBSUD C DONAVAN B DOYLESTOWN D DULUTH 8 EAGLEVILLE D DIOXICE 8 DONERAIL C DOYN D DUMAS B EAGLEWING 8 DIPMAN D DONEY C DRA C DUMFRIES B EAKIN 6 DIPSEA 8 DONICA A DRAGE S DUMMERSTON 0 EALY e DIOUE B DONICA. LOAMY 8 DRAGOON C CUMONT E EAPA 8 DIREG0 D SURFACE DRAGSTON C DUN GLEN 5 EARCREE 8 DISABEL C ONIPHAN B DRAKE 8 DUN aAP D EARLE D DISAUTEL a DONKEHILL D DRAKNAB A DUNBARTON D EARLMONT D Disco B DONLONTON C DRALL E DUNBPIDGE B EARLMONT, DRAINED C DISHNER D DONNA D DRANYON 8 DUNC C EARP B DISHPAN C DONNAN C DPAPEP C DUNCAN D EARSMAN D DISTELL C DONNARDO 8 ORAX 8 DUNCANNON B EASBYY D DISTERHEFF C DONNEL B DRAX. WET C OUNCKLEY 0 EASLE C DISTON C DONNELLY A DREDGE e DUNCOM 0 EASPUR 0 DISWOOD D DONNER C DRESDEN B I DUNDAS B/D1 EAST FORK C DITCHCAMP C DONNING D DRESSLER C DUNDAY A EAST LAKE A DITHOD C DONNYBROOK D DPEWING D DUNDEE C EAS7ABLE B DITNEY C DOODLELINK B DREWS B DUNELLEN B EASTCAN B DIVERS B DOOLEY C DREXEL B DUNFORD C EASTCHOP A DIVIDE B DOOLIN D DRIFTWOOD C/D1 DUNGENESS B EASTGATE 0 DIVOT C DOONE 5 DRIGGS B I DUNKIRK e EASTLAND B DIX A DOOR 8 DRISCOLL C DUNLAP C EASTON D DIXALETA D DOOWAK A DPIT 8 DUNLATOP e EASTPORT A DIX8ORO B DORA 8/01 DRIVER C DUNMORE B EASTWELL D DIXIE C DORAN C IDROEM C DUNN A EASTWOOD D DIXMONT C DORB C DROVAL C DUNNING D EATON D DIXON 9 DORCHESTER 8 DRUM C DUNNLAKE D EAUGALLIE B/D DIXONVILLE C DOREPTON 8 DRUMMER' B/Dj DUNNVILLE e I EAUGALLIE. D DIYOU C DORMONT C DRUMMOND D DUNOIR 8 1 DEPRESSIONAL DOAK B DORNA 8 DRURY B DUNPHY C I EAUPLEINE 0 DOAKUM 5 DOROSHIN D DRY CREEK C DUNPHY. DRAINED 6 1 EBA C DOBBINS C DOROTHEA C DRY LAKE C DUNPHY. HARDPAN 8 1 EBAL 8 DOBBS C DOROVAN 0 DRYADINE C SUBSTRATUM EBBERT C/D DOBEL D DORPER D DRYBURG 6 OUNSMUIR. 5 EBBS B DOBENT C DORRANCE A DRYDEN 8 DUNSMUIR f EBIC I, DOBROW D DORS 8 DRYN C NONGRAVELLY EBODA B DOBY D DORSET 5 DRYVALLEY C DUNTON C EBODA. STONY C DOCAS 0 DOSAMIGOS D DU PAGE 5 DUNUL A EBON C DOCDEE D DOSPALOS D DUANE P DUPEE C EBRO D DOCENA C DOSS C DUART C DUPLIN C ECCLES 8 DOCKERY C DOSSMAN 0 DUBAKELLA C OUPO C ECHARD D DOCPAR B DOTEN D DUBAKELLA, C DUPONT D ECHAW A DOCT C DOTHAN 9 GPAVELLY I DUPREE D ECHEMOOR C DODES 8 DOTLAKE 0 CUBAKELLA. COBBLY C DURADDS A ECKERT D DODGE B DOTSERO 8 DUBA V 5 DURALDE C ECKLEY B DODGEVILLE B DOTTA B OUBBS 8 DURAND 0 ECKMAN B DODSON C DOTY B DUBBS, FLOODED C DURANGO 0 ECKRANT D DOEL C DOUCETTE 8 OUBINA C DURANT D ECKVOLL 8 DOGER A DOUDLE 6 DUBLON e DURAZO A ECLIPSE B DOGIECREEK B DOUDS 8 1DUBOIS C I DURBIN D ECOLA C DOGUE C DOUGAL 0 1DUBUQUE B I DURELLE B ECON 0 DIES: TWO HYDROLOGIC SOIL GROUPS SUCH AS O/C INDICATES THE DRAINED/UNDRAINED SITUATION. MODIFIERS SHOWN, E.G., BEDROCK SUBSTRATUM. REFER TO A SPECIFIC SOIL SERIES PHASE FOUND IN SOIL MAP LEGEND. (210-VI-TR-55, Second Ed., June 1986) A-13 Exhibit A-1, continued: Hydrologic soil groups for United States Soils ECONFINA A I ELBOWLAKE e I ELR ICK 8 1 ENOCHVILLE. C I ESTER 0 ECTOR 0 ELBOR N B ELRIN F DRAIN ED I ESTER. THAWED C . E F EDALGO C EL130TTE C, ELP S 5 _NOLA 0 ESTERO D EDDINGS 11 ELCO F ELS A ENON C ESTES D EDD S 9 ELD D E LS A H B ENOREE D ESTESLAKE EDDY C ELDEAN F ELSIE E ENDS C ESTHERVILLE B EDEN C ELDER 8 ELSINBORO B ENOSBURG C ESTO a EDENBOWER ELDER HOLLOW 0 0 ELSMERE A ENSENADA 8 ESTRELLA EDENTON C ELDER N P ELSTON B ENSIGN D ETACH C EDFqO 0 ELDERON. STONY A I ELTREE B I ENSLEY 8/01 ETCHEN C EDGAR B ELDGIN F ELTSAC D ENSTPOM 8 ETELKA EDGE D ELDON 6 ELVE B ENTENTE B ETHAN 8 EDGEHILL C ELDORADO F I ELVEDERE C ENTERO V ETHANIA a C EDGELEY C ELDRIDGE C I ELVERS 5/01 ENTERPRISE B I E THE LMAN 8 EDGEMONT 9 ELECTRA C I ELVIPA E/D1 ENTIAT D I ETHETE 8 EDGEWATER C ELEPOY 8 1 ELWELL C I ENTMOCT C I ETHETE. SALINE C EDGEWtCK C ELEVA E I ELWHA C I ENVILLE C I ETHRIDGE EDGINGTON C/D1 ELFCREEK C I ELWOOD C I ENVOL 0 1 ETrL A EDINA D I ELFRIDA 8 ELY P ENZIAN D I ETOE BC EDINBURG C ELGEE A ELYSIAN 8 FOj C I ETOILE D EDISTO C ELHINA C ELZINGA e EOLA D I ETOWAH a EDLIN' 8 ELIJAH C EMEAL 8 EPHRAIM C I ETOWN EDLOE 8 ELINDIO C E NIS A RG 0 C EPHRATA 6 1 ETSEL D EDMINSTER D ELIOAK C EMBDEN B EPIKOM D I ETTA 8 EDMONDS D ELI ZA D EPEIEFTGN C I EPLEY C I ETTER EDMORE D ELK 8 EMBLEM 6 EPOKE 8 1 ETTERSBURG 8 EDMUND 0 ELK HOLLOV e j EMEIRY e EPOT 6 1 ETTPICK B/D EDMUNDSTON R ELK MOUNTAIN 8 1 EN-BUDO F FPOUFETTE B/01 EUeANKS E, EDNA D ELKA C I EN-DENT D EPPING D I EUCLID C EDNEYTOWN 6 ELKADER 6 EMDENT. BEDROCK C EPSIE D EUDORA B EDNEYVILLE 8 ELKCREEK C SUBSTRATUM. EPVIP D EUEP B EDOM C ELKHART e DRAINED ECUIS D EUFAULA A EDROY D ELK14ZLLS 8 EWDENT. DRAINED C ERA b EUHARLFE C EDSON C ELKHORN E EMERALD e EPAKATAK C EULDNIA C EDWARDS B/Dj ELKINS D I EMERALDA 1) 1 EPAM C I EUNDLA C EEL B ELKINSVILLE E, EMERSON P EPAMOSM D I EUREKA D EELCOVE D ELKMOUND D EMIGRANT C EFZBER C I EUSeTO C EELPOINT D FLKNER B EMIGRATION t ERCAN 5 EUSTIS A EEP C ELKOL D EMILY 8 EPD D EUTAW D EFFIE C ELKRIDGE 8 EML I N C ERICSON E- I EVADALE 0 EFFINGTON D ELKSEL C I EMMA C I FPIE C I EVANGELINE C EGAM C I ELKTON C/Dj EMMERT A ERIN e EVANS 8 EGAN B ELLABELLE D E MME T e EPNEM D EVANSHAM 0 EGAS D ELLEDGE C EMMONS E ERNEST C I EVANSTON a EGE!ERT D ELLEN F E MDR Y e EPNO 8 1 EVANSVILLE B/D EGBERT, STRATIFIED C ELLETT D ENCT L EPPAMOUSPE C I EVANT D SUBSTRATUM ELLIBER A EMPEDRADO 5 EPVIDE C I EVARD 13 EGBERT. MODERATELY C LLLICOTT A EMPEYVILLE C ESCABOSA C I EVARO a WET ELLINGTON B EMPIRE 8 ESCALANTE 6 EVART D EGBEPT. DRAINED C ELLINOP c EmrcR11A C ESCAMBIA C EVENDALE C EGBERT. SANDY C ELL 10 T T C E11PICK 8 ESCANABA., A I EVERETT A SUBSTRATUM ELLIOTTSVILLE 6 EPRO C ESCANO C I EVERETT. HARD B EGBEPT. SLOPING C I ELLIS 0 E he A P 6 ESCARLO F I SUeSTRATUM EGELAND F) I ELLISFORDt 6 1 ENBAR. WET D ESCONDIDO C I EVERGLADES B/D EGINSENCH C ELLISVILLE B I ENCAPPME14T F ESHAMY 8 1 EVERLY B EGLIN A ELLOAH 0 ENCHANTFI) R ESLENDO D I EVERMAN C EGYDT D ELLOREE D ENCIEPRG D ESMEPALDA B EVERSON D EICKS C ELLSWORTH C ENCINA E ESMOND 8 EVERWHITE C EIGHTLAP 0 ELLUM C ENDCAV C ESPARTO F EVESBOPO A EIGHTMILE D ELLZEY F/D ENDERS C EEPELIE B/D I EVRIDGE 8 EILERTSEN B ELM LAKE A/D ENDEPISBY E ESPIL V I EWA a E ITZE 11! B ELMDALE b E NDI COTT C I ESPINAL A I EWA. BEDROCK C EKAH C ELMENDORF 0 E1,DL ICH a I ESPINOSA 8 1 SUBSTRATUM EKALAKA B ELMINA C FNDSAW C I ESPINT 0 1 FWALL A EKIM C ELMIRA A ENERGY e I ESPLIN D I EXCELSIOR 6 EKRUe D ELMONT P ENET P ESPY C EXCHEOUER 0 EL DAPA P ELMORE 6 ENFIELD B FSQUATZEL P, EXCLOSE 8 EL PECO C ELMPIDGE C ENGELHAPD B/Dj ESPO D I EXEL C EL RANCHO B ELMVILLE a ENGETT A ESPO. MODERATELY C I EXETER C EL SOLYO C ELMWO13D C j ENCLE B WET I EXETER. THICK B ELAM A ELNIDO C I FNGLEWOOD C fSS 6 1 SOLUM ELAM, HARDPAN 5 ELNORA e I ENKO C ESSAL e I EXETTE e SUBSTRATUM ELOCHOMAN 8 1 ENKO, OVEP3LCWN 8 ESSEN C I EXIRA B ELANDCO S ELOCIN D I ENLOE C) ESSEX C I EXLINE D ELEIA C ELOIKA B I ENNING V I ESSEXVILLE A/Dj EXPAY D ELBAVILLE e ELOMA C I ENN I S B ESTACADO B EXUM C ELBERT D ELPAM 0 1 ENOCH C ESTACION B EYAK C ELBETH B ELPEDRO 8 1 ENOCHVILL.'- D ESTATE C EYEPSO% C ELBON 8 ELRED B/Dj ESTELLINE 8 EYLAU C NOTES : TWO HYDROLOGIC SOIL GROUPS SUCH AS B/C INDICATES T4E DRAINED/UNDRAINED SITUATION. MODIFIERS SHOWN. E.G., BEDROCK SUBSTRATUM, REFER TO A SDECIFIC SOIL SERIES PHASE FOUND IN SOIL MAP LEGEND. A-14 (210-Vl-TR-55, Second Ed., June 1986) Exhibit A-1, continued: Hydrologic soil groups for United States soils EYOTA A I FARRA6UT C FETTIC D FLATRON D FORKWOOD 8 EYRE 0 FARRAR 8 FETZER C FLATTOP D FORPADER C EZBIN 8 1 FARRELL 8 1 FEZ C I FLAXTON B FORMAN a I FABIUS a FARRENBURG B F;ANDE.. D FLEAK. D FORMDALE B FACEVILLE 8 FARROT C F ANDER DRAINED C FLEER A/D1 FORNEY 0 FACEY B FARSON 8 FIAT C FLEISCHMANN D FORNOR B FACTORY. C FARSON, WET C FIDALGO C FLEM - C FORREST C FACTORY MOIST 0 FARVA C FIDDLER C FLEM:NrGTON D FORSEER C FADDIN D I FARVANT D FIDDLETOWN 0 FLETCHER E FORSEY B FADOLL 0 1 FASHING D FIDDYMENT 0 FLEWSIE 8 FORSGREN C FAGAN C FASKIN 8 FIELD C FLEX D FORSYTH A FAGASA C FATHOM A FIELDCREEK 8 FLO A FORT COLLINS 8 FAHEY 8 FATIMA 5 FIELOING B FLOER D FORT MEADE A FAIM C FAIT IG C F ELDON B/D FLOKE D FORT MOTT A FAIM. MOIST 0 FAUNCE A FIFEP 0 1 FLOM B/Dj FORT ROCK C FAIRBANKS 8 FAUNSDALE D FIFIELD C I FLOMATON A FORTANK C FAIRBURN D FAVOUIER C FILION D FLOMOT B FORTESCUE C/o FAIRCHILD C FAUSSE D FILIRAN . FLO.DWODD 11 FORTUNA D FAIRDALE 0 FAVRET C FILLMORE D FLORAHOME A FORT.WTNGATE C FAIRFAX 8 FAWIN B FINCASTLE C FLORALA C FORTYFOUR C FAIRFIELD a FAX C FINCH C FLORENCE C FORVIC C FAIRHAVEN B FAXON B/Dj FINCHFORD A I FLORESVILLE C FORWARD 5 FAIRLIE 0 FAYETTE 8 1 FINDOUT D I FLORIDANA B/Dj FOSS B FAIRL0 B FAYETTEVILLE B FINGAL C FLORIDANA. D FOSSILON D FAIRMOUNT D FAYWOOD C F NGEROCK D DEPRESSIONAL FOSSUM A/D FAIRPLAY 8 FE 0 FINLAND C FLORIDANA. FLOODED D FOSTER C FAIRPOINT C FEARS B FINLEY 8 FLORIN C FOSTORIA B FAIRPORT C FEATHERLEGS B FINLEYPO14T B FLORISSANT C FOUNTAIN D FAIRWAY C FEATHERSTONE D FINNERTY D FLORITA B FOUR STAR C FA;RYDELL C FEDJI A FIND 8 FLOTA G a FOUR STAR. DRAINED B FA QYLAWN 0 FEDORA B/D FI NOL C FLOWELL C FOURCHE 8 FAJARDO C I FEDSCREEK B FIONE 8 FLOWEREE 8 FOUPLOG D FALAYA D I FELAN 8 FIPADA C FLOYD 8 FOURME 8 FALBA 0 FELCHER B FIREBALL B FLUETSCH 0 FOURMILE 5 FALCON D FELDA B/D F IRE BOX B FLUGLE 0 FOX 8 FALFA C FELDA. D FIRESTEEL 6 FLUKER C FOXCREFK 0 FALFURRIAS A DEPRESSIONAL FIPESTONE C FLUVANNA C FOXCREEK. DRAINED C FALK C FELICITY A FIRMAGE 6 FLYBOW 0 FOXHOME a FALKIRK B FELIPE D FIRO D FLYGARE 8 FOXMOUNT C FALKNER C FELIZ 8 FIROKE e FLYNN 0 FOXOL D FALL5ROOK B FELKER 8 FIRSTVIEW C FLYNNCOVE 5 FOXTON C FALLCREEK C FELLOWSHIP D FIRTH C FOAD C FOXWORTH A FALLERT 8 FELOR 8 FIRTH, DRAINED 0 FOARD D FRADDLE 0 FALLON C FELT 0 FISHERMAN D FOEHLIN B FRAILEY B FALLON. NONFLOODED0 FELTA C FISHERS 0 FOIDEL 0 FRAILTON D FALLSAM D FELTHAM 8 FISHFIN D FOLA 8 FRAM 5 FALLSINGTON B/Dj FELTNER 0 F;SHHOOK P FOLDAHL 0 FRANCIS A FALOMA D FELTON a F SHLAKE D FOLEY D FRANCISCAN C FALSEN A FELTONIA B FISHPOT C FOLLET D FRANCISOUITO C FALULA D FENCE B FISHROCK D FOMSENG C FRANCITAS D FANAL C FENDALL C FISHTRAP D FONDA D FRANDSEN B FANCHER C FENELON C FISK P FONDIS C FRANKFORT C FANDANGLE C FENN D FITCHVILLE C FONNER B FRANKIRK C FANDOW D FENSTER 0 FITZGERALD B FONS 0 FRANKLIN FANG 8 FENWICK C FITZHUGH E FONTANA 8 FRANKSYOWN FANNIN 0 FENWOOD. B FIVEBLOCK C FONTREEN 0 FPANKTOWN D FANNO C FERA C FIVEMILE 0 FOPIAND 0 FRANKVILLE B FANSHAW 0 FERDELFORD C FIVEMILE. SALINE C FORADA. 8/01 FRATERNIDAD D FANTZ C FERDINAND C FIVECH 8 FCRAKE D FRAVAL C FANU B FEREBEE D FIVEPINE 1) FORBAR 0 FRAVAL. GRAVELLY 8 FAPS C FERGUS 0 FIVES 0 FORBES C FRAZER C FARAWAY D FERN CLIFF B FIVESPAINGS C FORRESVILLE C FRAZERTON 8 FARB 0 FERNANDO B FLACO C FORBING D FRED C FARBER B FERNCREEK D FLAGG B FORD D FREDENSOORG C FARGO D FERNDALE B FLAGLER B FORDICE 0 FREDERICK 0 FARISITA D FERNEY D FLAGSTAFF I, FORDNEY A FREDON C FARLAND B FERNHAVEN B FLAK C FORDNEY. WET C FREDONIA C FARLOW 8 FERNLEY C FLAMBEAU B FOROTRAN C FREDONYER C FARLD IGH C FERNOW..' B FLAMAING A FORDUM D FREE B/D RAINFW;LH FERNPO 6 FLAN GAN 0 FORDVILLE a FREEBURG C FAPMELL B I FERNWOqD 13 FLANDREAU 0 FORELAND D FREECE D FARMINGTON C FERRELO 8 FLANE C FORELLE B FREEDOM C FARNSWORTH D FERRIS D FLANLY 5 FORESMAN B FREEDOM. SALINE 8 FARMION D FERROBURRO D FLASHER D FORESTSURG A FREEHOLD B FAR14HAM 6 FER RON 0 FLAT.HORN B FORESTDALE 0 FREELAND C FARNHAMTON C FERTALINI D FLAT EAD B FORESTER C FREEMAN C FARNUF 8 FERTEG C FLATIRONS C FORESTON C I FREEMANVILLE 0 FARNUF. WET C FESTINA 8 FLATNOSE B FORGAY B FREEON FARNUM B FETT D I FLATONIA D FORK C FREER C NOTES: TWO HYDROLOGIC SOIL GROUPS SUCH AS B/C INDICATES THE DRAINED/UNDPAINED SITUATION. MODIFIERS SHOWN. E-.G.. BEOPOCK'SUBSTRATUM. REFER TO A SPECIFIC SOIL SERIES PHASE FOUND IN SOIL MAP LEGEND. (210-VI-TR-55, Second Ed., June 1986) A-15 Exhibit A-1, continued: Hydrologic soil groups for United States soils FREEST C FULSHEAR C CAPCOT D GED D GILISPIE D FREESTONE C FULSTONE 0 GAPO D GEE C GILLAND C FREETO WN D FULTON D GAPO. DRAINED C I GFEBURG C I GILLENDEP D FREEWATER B FULTS D GAPPMAYER B GEEMORE C I GILLIAM C FREEZE14ER P FULVIDER D CARA C GEER 8 1 GILLIGAN 8 FREEZEDUT B FUNTER 0 CARPER 0 GEERTSEN 0 GILLS C FRELSSUPG 0 FUGUAY 6 GARBO 6 GEFO A GILLSSUPG C FREMONT C FURNISS D GAPeUTT 6 GFISEL 8 GILMAN a FREN B FURSHUR D I GAACENO C I GEKE C GILMORE C FRENCH C FURY D GAPCES D GELKIE 8 GILPAR a FRENCHCPEEK 0 FURY. DRAINED C GARCIA C GEM C GILPIN C FRENCHJCHN C FUSUL I N A V GARCITAS C GEM, STONY D GILROY C FRENCHMAN B FUSUVAR V GAPCON C GEMID C GILSTON B FRENCHTOWN D GAASTPA C GARVELLA D GEMSON B GILT EDGE 0 FRESHWATER D CABALDON I; GAPCENA V GENAW D GIMLETT 8 FRESNO. D GABBS C GARDINEP A GENEGPAF 8 GINAT 0 SALINE-ALKALI GABHVALLY 0 CAPDNER-S FOPK 6 GENESEE e GINEX D FRESNO. THICK C GABEL C GARDNERVILLE C GENEVA 8 GINGER D SOLUM GABICA D GARDONE A GENOA D GINI a FPEWA 8 CASINO D CAREY V GENDLA 5 GINLAND D FREZNIK D GACEY D 6ARFAN e GENTILLY 0 GINNIS C FRIANA D GACHADO D GARFIELD C I GENTRY 0 GINSER C FPIANT D GACIBA D GAPHILL D GEOCONDA C GIRARD D FRIDLO C CADDIES C GARIPER C GECHROCK 8 GIRARDOT D FRIEDLANDER C CADDY A GARITA E GEORGECREEK 8 GIRD 0 FRIEDMAN C GADSDEN C GARLAND e GEORGETOWN 0 1 GIST 0 FRIENDS C GADSDEN. WET C GAPLET E GEORGEYILLE 8 GITAKUP C FRIENDSHIP A SUBSTRATUM GARLOCK B GEORGIA C GITAM 0 FRIES D GADWELL C GAkMON C GEPFORD 1) GIVIN C 'FRIFSLAND P GAGEBY 6 GAPMCPF 0 GEPP 0 GLACIEPCREEK A !;TJOLES B I GAGETCoN e qARNEL 0 GEPPEPT C GLADDEN .8 FPINDLE C I GAGIL 9 GARNER D GERALD D GLADEL D FPINFS C I GAHEE v CARNES F I GERFER D GLADEVILLE D FRIO 9 GAIe D CA A 0 D GERDRUM D GLADEWATER D FRIONA C GAILA F3 GARR D GERING e GLADSTONE 8 FR I OT ON C GAINES C I G A RR E T 50-14 V GERLACH D I GLADWIN A FRIPP A GAINESBCRO C I CARRETT n GEPLANE 8 1 GLASGOW C FRISCO 9 GAINESVILLE A I GARRISON E GERLE B GLASSNEP D FRISITE B I GALATA D CAPPOCHALES D I GERMANTOWN 6 GLEAN 6 FRITZ & I GAL8RETH D GAPSID r GERMANY S GLEASON 0 FRIZZELL C I GALCHUXT C GAPTCN C GERMER C GLEeE C FROBEPG D I GALE f, GARVESON C GERONI 0 GLEN 0 FRODO D I GALEN e GARVIN I' GERRAPD C GLENHAP B FPOHMAN C I GALEPPI 8 GARWIN EI/D GERRARD. DRAINED E GLENSAP, WET C FPOLIC 9 GALESTINA C G 4 P. Z A. E GERST D GLENaERG 8 FROLIC. C GALESTOWN A GArzrNA D I GESSIE 0 1 GLENBLAIP C FLEVATION<,'000 GALEY 6 GAS CREEK D I GESSNER R/D1 GLENBROOK D FROLIC, FLOODED C I GALILEE C I GASCCNADF@ D I GESTPIN 6 1 GLENCARS F FRONDORF 8 1 GALISTEO C I GASIL S I GETAWAY B I GLENCARB. WET. C FRONTENAC 9 1 GALISTEO. C I CASOUIT 5 1 GETCHELL C I SALINE FRONTIER C SALINE-ALKALI I GASSAWAY D I GETPAIL D I GLENCOE B/D FRONTON D GALLAND U GASSVILLE C I GETTYS C I GLENCOE. PONDED D FROST D C, ALL AT IN C GAST ON C I GFTZVILLE 0 1 GLENDALE B FROZARD C GALLEGOS 8 GAT P I G6WTER C I GLENDALE, WET C FRU IT A 8 GALLEN I' GATES P. I GEYSE14 C I GLENDALE- RARELY C FRUITFIELD A GALLIA 6 GATESCS C I GIBBLER C I FLOODED FRUITHURST C I GALLIM'i 6 CATEVIEW 8 1 GIBBON 0 1 GLENDERSON a FPUITLAND 5 1 GALLION B GATEWAY C I GIBBONSCREEK C I GLENDIVE 8 FRUITLAND. C I GALLMAN a GATEWOOD C I GIBBS D I GLENDORA A/D MODERATELY WET I GALLUP C I GATLIN a i GieNEY C I GLENEDEN D FRUITLAND. WET C I GALOO C/01 GATOP 0 1 GIBSONVILLE D I GLENELG B FRYE C GALT D I GATTCN v I GIBWELL C I GLENFORD C FRYEBURG 5 GALVA P I CAULDY 5 1 GIDEON C I GLENHALL 0 FT. DRUM C GALVESTON A I GAUL EY C I GIELO% C I GLENHAM 8 FT. GREEN D GALVEZ C I GAVEL C I GIFFORD D I GLENMEN 8 FUSAP C GALVIN D I GAVILAN C GIGGEP C I GLENMORA C FUS13LE D GALWAY 8 GAVINS D GILA 8 1 GLENNALLEN C FUEGO C GAHBLFP 6 GAVIOTA D I GILBERT D I GLENDMA 0 FUEGOSTA D I GAMBOA 6 1 GAY B/Dj GILBOA 8 1 GLENPOOL A FUERA C GAMGEE C I GAYLESVILLE D I GILBV 8 1 GLENRIO D FUGAWEE B GANADO 0 1 GAYLORD C I GILCHPIST A I GLENROSE a FUGHES C f GANCE C I GAYNCR C I GILCO B I GLENROSS D FULCHER C I CANDO D I GAYVILLE D I GILCREST 6 1 GLENSTED D FULDA C/Dj CANIS D I GAZELLE D I GILEAD C I GLENTON B FULLAM C I GANNETT D GAZOS C I GILES B I GLENTON. WET C FULLEP D I GANSNER C GAZWFLL C I GILFOPD B/D1 GLENTOSM A FULLERTON S I GANSNER. PONVEC D GEArHART A I GILFCRD. D I GLENVIEW B FULMER 0 1 GANY 0 GEARY 8 1 STRATIFIED GLENVILLE C FULMER. DRAINED C I GAPBUTTE B CE6SCN B I SUBSTRATUM GLENYON 8 NOTES: TWO HYDROLOGIC SOIL GROUPS SUCH AS P/C INDICATES THE DRAINEO/UNDRAINED SITUATION. MODIFIERS SHOWN, E.G.. REOPOCK SUBSTRATUM. REFER TO A SPECIFIC SOIL SERIES PHASE FOUND IN SOIL MAP LEGEND. A-16 (210-VI-TR-55, Second Ed., June 1986) Exhibit A-1, continued: Hydrologic soil groups for United States soils GLOHM C I GOOSEFLATS 0 1 GPANGEVILLE, B I GRELLTON B GUAYABOTA D GLORIA D ; COOSMUS B I DRAINED I GRENADA C GUAYAMA D GLOUCESTER A GORDO 6 1 GRANGEVILLE. E I GRENADIER B GU&E C GLOVER C/D1 GORE D I OCCASIONALLY I GRENVILLE B GUSEN V GLYNDON 8 GOREEN 0 j FLOODED I GRESHAM C GUCKEEN C GLYNN C GORGAS D GRANILE P I GRETDIVID 0 GUDGEL C GLYNWOOO C I GORGONIO A GRANHOUNT C I GREWINGK C GUDGREY 0 GLYPHS 8 GORHAM B/01 GRANO 0 1 GREYeACK 8 f GUELPH 6 GOBAR 6 GORIN C I GAANSHAW F I GREYBO B I GUEMES B GOBERNADOR D GORING C I GRANT 5 1 GPEYOULL C GUENOC C GOBINE 8 GORMAN C I GRANTFORK D GPEYEAGLE D GUENTHER 8 GOBLE C GORSKEL D GRANTHAM 0 GREYS 8 GUERNSEY C GOBLIN D f GORST 0 GRANTSBURG C GRIBBLE 0 1 GUERO C GOCHEA 0 1 GORUS B GPANTSDALE B GRIDELL D GUERRERO A GODDARD B GORZELL 8 GRANVILLE 8 GPIDGE D GUEST D GOODE 0 GOSA B GRANYON 0 GRIDLEY C CUFFEY C GOODING C GOSHEN 0 GRANZA N B GRIETAS B GUFFIN D GODECKE 0 GOSHUT E 0 GRAPEVINE 6 GRIEVE F GUGUAK D GODFREY D GOSINTA C GRAPIT B GRIFFITH 0 GUILDER C GODWIN D GOSLIN B GRASHUL C I GPIFFY 6 GUISER 8 GOEMMER C GOSNEY D GPASMERE E GRIFTON 0 GULEP e GOSPER 8 GRASSNA e GR;GSOY0 6 GULF B/D ....... N, , T L GOESSEL 0 GOSPOR C GRASSVA D GR GSTO P GULKANA a GOFFPEAK B GOSS 6 1 GRASSYALLEY D GRIMM A GULNARE D GOGESIC 8 GOSUMI 0 GRASSY BUTTE A I GRIMM, STONY 6 GUMBLE D GOL 0 GOTEBO B GPASSYCONE A GPIMSLEY 6 GUMBOOT 0 GOL C GOTHAM A GRAT D GRIMSTAD e GUMBOOT, DRAINED C G L: NONSTONY C GOTHAROUR(; C GRATTANS A 611IMSTONE B GUNBARPEL: SALINE, 0 GOL GRAVELLY C GOTHENS 0 GRAUFEL C GAINA D SUN5ARREL DRAINE A GOLCONDA C GOTHIC C GRAVOEN 0 GRINDALL 0 GUND C CO'LD CREEK D GOTHO C GPAVELTON B/01 GRINDBROOK C I GUNDY C GOLDBERG D GOTHO, MODERATELY B GRAVIFR 8 1 GRINDSTONE C I GUNLOCK C GOLDENDALE B WET GRAYeERT B I GPINK C I GUNN a GOLDFINCH 0 GOTHO. COOL 6 GRAYCALM A I GRINPOD C I GUNNEL D GOLDHEAD B/Dj GOULDING D I GRAYFORD s I GRrSOALE 8 1 GVNSIGHT 8 GOLDHILL 0 GOULDSBORO D GPAYLAND 0 GRISWOLD 5 1 GUNSONE D GOLDHILL. LOAMY C. GOUROIN C GPAYLAND. DRAINED C GRITNEY C I GUNSTOCK C SUBSTRATUM GOURLEY C I GRAYLING A I GRIVER C I GUNTER B caLDL AKE 11 IOVE B I GRAYLOCr A I GR I VEP , WE T 11 1 GUP C GOLDMAN C GOWEN 8 1 GRAYLOCK. STONY 8 GRIVER. DRAINED 8 1 GURDANE C GOLDMIRE C GOWKER r I GRAYPOINT 6 GRIZZLY 8 GURDON C GOLORIDGE 6 GOWTON 8 1 GRAYPOINT, WET C GROBUTTE 8 GURLEY C GOLDRUN A GOZEM D GRAYROCK C GROGAN 0 GURNEY 8 GOLDSBORO 0 GRASE 6 GRAYS 6 GROOM C GUSTIN D GOLDSTON C GRABLE B GRAYSILL C GROSECLOSE C GUSISPRING a GOLDSTREAM D GPACEMONI C GRAZER C GROSS C GUTHRIE D GOLDSTREAM. THAWED 13 GRACEMORE C GREAT BEND 6 GROSSWELL C GUY a GOLOUST C GRACEVILLE 6 GREDGE 0 CROTON A GUYAN C GOLDVALE B I GRADCO C GREEN BLUFF e GROTTE 0 1 GUYANDOTTE 5 GOLDVALE. NONSTONY C I GRADON C GREEN CANYON B GROTTO A I GUYTDN D GOLDVEIN C GRADY D I GREEN RIVER C GROUSECREEK 8 1 GWENA D GOLDYKE D GRAFEN 8 1 GREEN RIVER. e GROVSEVILLE C I GWIN D GOLETA B GRAFF 0 1 STRONGLY SALINE GROVE A GWIN, GRAVELLY C GOLIAD C GRAHAM 0 1 GREEN RIVER. F GROVECITY 6 GWINLY - D GOLLAHER D GRAIL C I FLOODED GROVENA 6 1 GWINNETT 8 GOLSUM C GRAINOLA D I GQEENORA--. C I GROVER 5 1 GYMER C GOLTRY A GRALEY D I GREENORIAR e I GROVETON 0 1 GYNELLE A GOLVA 8 GRALIC B I GPEENCREEK B I GROWDEN C I GYPNEVEE 0 GOMERY B I CRAN D I GREENDALE B I GROWLER B GYSTRUM C GOMEZ 8 1 GRANATH 8 1 GREENE A GROWTON 0 HAAR D GONVICK 8 1 GRANBY A/Dj GREENFIELD 8 GRUBBS D I HAARVAR D GONZAGA C GRANDEIRONDE D GREENFIELD. C GRUBSTAKE 8 HACCKE C rOOCH D GRANDF ELD B HARDPAN GAUENE 0 HACK B GOODING 0 GRANDMORE e I SUBSTRATU-4 GRULLA D HACK5ERRY B GOODINGTON D GRANDPON 0 1 GREENHALGH B GRUMMIT D HACKERS 0 GOODLAND 8 GRANDVIEW C GREENHORN D GRUNDY C HACKROY D GOODLOW GRANDVIEW. DRAINED B GREENLEAF E GRUVER C I HACKWOOD 6 GOODMAN 6 1 GOANER B GREENLEE 8 1 GRYGLA B/Dj HADAR B GOODNIGHT A GRANGE C GREENMAN C I GSCHWEND 0 1 HADENCREEK C GOODPASTER D GRANGEMONT C GREENOUGH B I GUADALUPE B I HADES B GOODPICH B GRANGEVILLE. 5 GREENSON C I GUAJE D I HADLEY a GOODSPRI14GS D DRAINED. SLOPING GREENTON C I GUAM D HADSELVILLE 0 GOODW ILL 8 GRANGEVILLE C GREENVILLE e GUAMAN e HAFLINGER A GOODWIN 8 SALINE-ALK;Ll. GPEENV NE D GUANABINO C HAGEN B GOOLAWAY C WET GREENWATER A GVANAJIBO HAGENBARTH 6 GOOSE CREEK 8 GRANGEVILLE, B GPEENWAY B I GUANICA D HAGER D GOOSE CREEK, WET C SALINE-ALKALI I GREENWOOD A/D1 GUARD C I HAGERMAN C GOOSE LAKE D GRANGEVILLE, 8 1 GPEHALFM e I GUARDLAKE A I HAGERSTOWN C GOOSEBURY B MODERATELY WET I GRELL D I GUAYABO A I HAGGA D NOTES: TWO HYDROLOGIC SOIL GROUPS SUCH AS B/C INDICATES THE DRAINED/UNDRAINED SITUATION. MODIFIERS SHOWN. E.G.. BEDROCK SUBSTRATUM. REFER TO A SPECIFIC SOIL SERIES PHASE FOUND IN SOIL MAP LEGEND. (210-VI-TR-55, Second Ed., June 1986) A-17 Exhibit A-1, continued: Hydrologic soil groups for United States soils HAGGA C AN D,@OC K C HARSHAW R I M A 'A1 8 1 HEIMDAL 6 SALI@E-ALKALI HSU51POTE;TBEM HARSLO C I HAWICK A I HEINSAW C HAGGERTY 5 H AN IS C I HARSTINE C I HAWKEYE A I HEISET ON 8 HAGSTAOT C HANKINS C I HARSTON 8 1 HAWKINS C I HEISETON, STONY C HAGUE A HANKS 9 1 HART D I HAWKSBILL 8 1 HEISETON, C HA fG C/Of HANKSY I LLE 1) 1 HART CAMP D I HAWKSNEST C/Dj SALINE-ALKALI HAIGHTS B HANKSVILLE, C I HARTER C t HAWKSPRINGS B I HEISLER a HAIKU 8 NONFLOODED I HARTFORD A I HAWKSTONE 0 1 HEIST a HAILMAN 9 HAMLON B I HARYIG e HAWLEY e HEITTR C HAIRE C HANLY A I HAPTILL C HAWSLE Y A HE ZE D HAIRE. BEDROCK D HANNA 8 1 HARTLAND 0 HAXTUN 0 HELOT C SUBSTRATUM HANNAHATCHEE e I HARTLESS e HAYBOURNE B HELEMANO 0 HAKKER C HANNING e I HARTLETON V HAYCRIK C I HELENA C HALACAN 0 HAND C I HAPTNIT C HAYDEN 6 1 HELENDALE a HALAWk B HANOVER C I HART ' BURG B/D I KAVFSTON P I HELL G AT E B HALBERT 0 HANS C I HARTSELL$ 8 1 HAYESVILLE V I HELLMAN C HALCOTT C/Of HANSEL C I HARTSHORN 6 1 HAYESVILLE, STONY C I HELM 0 HALDER C I HANSKA 6/01 HARTVILLE C I HAYFIELD 0 1 HELMER C HALE D I HANSON 8 j HART6ELL D I HAYFORD C I HELMER. GRAVELLY D HALE. DRAINED C I HANTHO 5 1 HARVARD e I HAYHOOK 0 1 SUeSOIL HALEDON C I HANTZ D f HARVESTER 6 1 HAYMARKET D I HELPER. THIN 0 HALEiWA a I H AN, TZ . DRY C I HARVE'( 0 1 HAYMOND 6 1 SURFACE HALEY B I HAP e I HARVEY. BEDROCK C MA YM UNT 8 1 HELMER. SEVERELY 0 HALF MOON 9 1 HAPGOOD 0 1 SUB5TRATUM. DRY HAYNESS 5 f ERODED HALFADAY A HAPJACK 0 1 HARWOOD C HAYNIE 8 1 HELMICK D HALFWAY 0 HADNEY C I HASKILL 5 HAYPRESS A I HELIER e HALTI 6 f HAPPLE B I HASKINS C HAYRACK C I HELVETIA C HALIJMAILE 5 1 HAPUR v HASSEE V HAYSPUR 1) HELY C HALL 8 1 HARAHAN 0 HASSELL C HAYSUM 6 HEMBRE 5 HALL RANCH C I HAPAHILL C HASTINGS D HAYIER V I HEMCROSS a HALLANDALE B/Dj HAPANA e I HAT C HAYTI D I HEMINGFORD El HALLANDALE. TIDAL 0 1 HAPBORD 6 1 HATBORO 0 1 HAYWIRE C I HEMOSTEAD 0 HALLCREEK A I HARCANY C I HATCH C I HAYWDOO e I HENCO S/D HALLECK C I MARCO 8 1 HATCH. GRAVELLY D I HAZEL C I HENDERSO N 13 HALLECK. GRAVELLY 9 f HARCOT @/Dj HATCHERY C HAZELAIR D I HENDON C SUBSTRATUM I HAPOEMAN B I HATCHET. 0 HAZEN e I HENDRICKS 8 HALLETTSYILLE 0 1 HARDESTY 6 1 OVERBLOWN. THICK HAZLEMURST C I HENDY C HALLISON C I HARDHAT 6 1 SOLUM MAZLETDN 8 1 HENEFER C HALLORAN C I HAPDING 0 1 HATCHET. GRAVELLY C HAZrON 0 1 HENHOIT a HALSEY C/Dj HARDISTER 6 1 HATCHET, OV@@RBLOWN C HEADLEY 8 1 HENKIN L, MALSD 0 HAROOL 1.3 1 HATCHET , C05BLY C HEADQUARTERS e, I HENLEY C HAMACER A HARDSCPABBLC 0 1 HATCHIE C HEAKE D I HFNLINE C HAMAKUAPOKO 8 HAPOTRIGGER F I HATEPMUS V HEALDTON C I HENMEL C HAMAR A/Dj HARDY C I HA7EkTON r- I HEALING e f HENNEKE D HAMBLEN C I HARGJLL 0 1 HATHAV'AY B HEARNE C I HENNEPIN a HAMBONE B I HARGREAVE C HATLEY C HEARNE, GRADED D I HENNESSY 6 HAMBRIGHT D HARJO HATL IFF C HEATH C I HENNEWAY v HAMBUPG 8 HARKERS C HATMAKEP C HEATHCOAT C I HENNEY a HAMBY C HARKEY B HATPEAK C HEAILY A I HENNINGS 8 HAMDEN B HARKNESS C I HATTIE C HEATON A I HENNINGSEN C HAMEL C HARLAN 5 1 HATTON C HEBBRONVILLE, 8 1 HENRIETTA 8/0 HAMERLY C HARLEM C I HATUR C I HEBER A I HENRIEVILLE 0 HAMILTON 9 HARLEM. CHANNELED 0 1 HATWAI () I HEBERT C I HENRY 0 HAMLET 8 HARLESTCN C t HAUBSTAOT C I HESO D I HENSHAW C HAMLIN 8 HARLINGEN D I HAUG E101 HEEPON F I HENSLEY D HAMMACK & HARLOW 0 1 HAUGAN S I HECETA 0 1 HENSON 8 HAMMONTON 5 HARM.E"L C I HALLINGS V I HECHTMAN D I HEPLER C HAMPSHIRE: C HARMONY C I HAUNCHEE 0 1 HECKER E I HFPPSIE 0 HAMPSON C I HAPNEY 5 1 HAUZ C I HECKISON 0 1 HERAKLE 0 KAM.QE C/Of HAROL e j HAVALk B I HECLA A I HERBERT 8 HAMRUB e I HARPER D I HAVANA 6 1 HECTOR D I HERBMAN 0 HAMTAH C I HARPERSVILL6 [@ I HAVELOCK 8 /C.' IHEDGE 0 1 HERD C HANA A I HAPPETH 6 1 HAVEN e I HEDOES C I HEREFORD e HANAGITA 0 1 HAPPOLE 8 1 HAVEROAD E I HEDOX C I HERITO C HANAKER C V4ARPS B/D1 HAVERDAD, C I HEDRICK 8 1 HERKIMER B HANALEI C HAPPSTER 5/Dj MODERATELY SALINE f HEOSTROM 8 1 HERLONG D HANAMAULU 8 HARPT 6 1 HAVERHILL C HEDVILLE 0 1 HERM C HANCEVILLE B HARQUA C I HAVEPLY C HEECHEE 6 1 HERMANTOWN C HAND 6 HARRAH L' I HAVFRMOM B I HEELY 6 1, HERMEAING a I HANOPAH 0 HARRIET G I HAVERSON S I HEESER 6 1 HERMISTON a HANDRAN A HARRIMAN F I HAVtLAND e HEFED B I HERMON A HANOSBORO 0 HARRIMAN. WET C I HAVILLAH 8 HEFLIN 0 1 HERNANDEZ 8 HANDY C I HARRINGTON C I HAVINGOON C I HE.GLAP 9 1 HERNDON a HANEY 5 HARRIS 0 j HAVRE B I HEGNE 0 1 HERO 8 HANFORD $ HARRISBURG C I HAVRE, SALINE C HEIDEL 6 1 HEROD D HANGAARD D HARRISON E I HAVRE. MODERATELY C HEIDEN 0 1 HERRICK 0 HANGDO 8 HARRISV1LLE C I WET HEIOTMAN C I HERSH 8 HANGTOWN P HARROVN 0 1 HAVRELON a HEIGHTS 5/01 HERSHAL D HANIPOE e HARSAN 0 1 HAW e HEIL 0 ( HERTY NOTES: TWO HYDROLOGIC SOIL GROUPS SUCH AS B/C INDICATES THE DRAINED/UNDRAINED SITUATION. MODIFIERS SHOWN. E.G.. BEDROCK SUBSTRATUM. REFER TO A SPECIFIC SOIL SERIES P14ASE FOUND IN SOIL MAP LEGEND. A-18 (210-VI-TR-55, Second Ed., June 1986) Exhibit A-1, continued: Hydrologic soil groups for United States soils HESCH B HILLSBORO 8 HOLDERMAN C HOODVIEW B HOWELL C HESPER B HILLSDALE B HOLDERNESS C HOOGOAL C HOWLAND C HESPERIA 8 HILLTO 6 HOLDINGFORD C HOOKS 0 HOWSON C HESPERUS B HILLWOOD B HOLDREGE V HOOKSAN A HOYE 8 HESSEL B/D1 HILMAR D HOLILLDIPAH A HOOKT ON C HOYLETON C HESSELBERG D HILMAR, DRAINED B HOLLAN 0 HOOLEHUA B HOYPUS A HESSELTINE 8 HILMOE C HOLLANDLAKE B HOOLY C HOYTVILLE C/D HESSING 8 HILO A HOLLINGER F HODPAL D HUACHUCA 1) HESSLAN C HILOLD 0 HOLLIS C/D1 HOOPER D I HUALAPAI C HESSON C HILT 0 HOLLISTER D HOOPESTON 8 Hue B HETERWA C HILTON" B HOLLOMAN D HOOPLITE D HUBBARD A HETTINGER CID1 HINCKL A HOLLOMEX B HLOSAN 6 HUBBARDTON D HEUSSER C HINDES C HOLLOW C HOOSEGOW 8 HUBBELL a HEUVELTON C HINESBURG C HOLLOWAY e HOOSIC A HUBERLY D HEWITT D HINKER C HOLLOWTREE C HOOSIERVILLE C HUBERT 5 HEXT 8 HINKLE D HOLLY B/D1 HOOSIMBIM 8 HUBLERS8URG e HEYDER B HINMAN C HOLLY. PONDED D HOOT 0 HUCKLEBERRY C HEYOLAUFF B HINSDALE D HOLLY SPRINGS D HOOTEN D I HUCKLEBERRY, HIGH B HEYTOU B HIPAMSBURG C HOLLYWELL B HOPCO C RAINFALL HEZEL 9 HIRIDGE D HOLLYWOOD D HOPDRAW A HUDNUT 5 HI VISTA C HIRSCHDALE C HOLMAN A HOPEKA D HUDSON C HIARC C HISEGA C HOLMDEL C HOPKINS 8 HUECO C H BAR C HISKEY 8 HOLMES 8 HOPLAND 8 HUEL A HIBBARD C HISLE D HOLOHAN B HOPLEY B HUENEME C HIBBING C HITCHCOCK B HOLOMUA 6 HOPSONVILLE C HUENEME. 8 HIBERNIA C HITILO A HOLOPAW B/Dj HOOUIAM 8 MODERATELY WET H19PITEN 8 HITT 3 HOLOPAW. c I HORD 6 HUENEME. DRAINED e HICKMAN B HIVAL D DEPRESSIONAL HOREB C HUFRFANO D HICKORY C HIWAN D OLOPAW, D HOREB. GRAVELLY 6 HUEY D HICKS 0 HIWASSEE 8 FREGUENTLY SUBSTRATUM HUFFINE HICKSVILLE 5 HIWOOD A FLOODED HORNELL D HUFFMAN HICKSVILLE, C I MIXTON B HOLSINE e HORNING 8 HUFFTON 8 BEDROCK HOADLY C HOLSTEIN B HORNITOS 0 HUGGINS C SUBSTRATUM H06ICKER B HOLSTON 6 HORNSBY C HUGHES B HICOTA HOBAN e HOLT 0 HORNSVILLE C HUGHESVILLE C HIDALGO 8 HOBBS B HOLTEP b HORROCKS a HUGO 6 HIDATSA B HOBCAW D HOLTLE B HORSECAMP D HUGUS 6 HIDEAWAY D HOBE A HOLTON C HOPSERIDGE B HUGUSTON 0 HIDE;WOOD B/Dj MOBERG C HOLTVILLE C HORSESHOE B HUICHICA C HIER Z0 8 HOOIT C HOLYOKE C/Of HORSETHIEF 8 HUICHICA. PONDED v HIGGINS D HOBO D I HOMA C HORSLEY D HUIKAU A HIGGINSVILLE C HOBOG D HOME CAMP C HORST B HUKILL E HIGH GAP C HOBONNY D HOMELAKE 8 HORTONVILLE B HULETT 8 HIGHAMS D HOBSON C HOMELAND C HOSKIN C HULLS C HIGHBANK C HOBUCKEN D HOME R 8 HOSKINNINT D HULLT 8 HIGHCAMP 8 HOCAR 0 HOMESTAKE C MOSLEY D HULUA D HIGHFIELD B HOCHHEIM B HOMESTEAD B HOSMER C HUM B HIGHHORN 5 HOCKINSON D HOMEWOOD C HOSSICK 6 HUMACAO e HIGHMORE 8 1 HOCKINSON. C HOMME C HOSTAGE 0 HUMATAS C HIGHPOINT 0 MODERATELY WET HOMME, MODERATELY 5 HOT LAKE C HUMBARGER 8 HIGHROCK, D HOCKINSON. DRAINED B WET HOTAW C HUMBIG C H GHTOWE C HOCKLEY C HOMOSASSA D HOTCREEK 0 HUMOIRD e HIGHWOOD C HOCKLEY. GRADED 0 HONAUNAU C HOTEL C HUMBOLDT D HIHIMANU 8 HODA C HONCUT 5 1 HOTSPRINGS B HUMBOLDT. 8 HZIBNER C HODEDD C HONDALE D HOUDEK B MODERATELY WET. HIKO PEAK B HODENPYL B HONDOHO B HOUGH B SALINE-ALKALI HIKO SPRINGS 8 HODGE A HONEOYE 6 HOUGHTON A/D1 HUMBOLDT. 8 HILAIRE 8 HODGINS 8 HONEYDEW C HOUGHTON. PONDED D I MODERATELY WET, HILAND B HODGSON C HONEYGROVE 8 HOUGHTONVILLE C SALINE HILDEBRECHT C HOEHNE A HONEYJONES B HOUK C HUMBOLDT. DRAINED. B HILDRETH D HOFFLAND D HONEYVILLE C HOULA 0 STRONGLY SALINE HILEA D HOFFMANVILLE C HONKER D HOULKA D HUMBOLDT. DRAINED. B H LES 8 HOFFSTADY 8 HONLAK C HOURGLASS .6 NONSALINE HILGEP 8 HOFLY C HONLAK. DRAINED B HOUSE MOUNTAIN D HUMBOLDT. 0 HILGRAVE 8 HOGADERO 8 HONLU E HOUSER D MODERATELY WET HILIGHT D HOGANSBURG B HONN 6 HOUSEROCK D HUMBOLDT. DRAINED B HILINE D HOGBACK C HONOBIA C HOUSTAKE C HUMDUN 0 1LLBRICK D HOGG C HONOKAA A HOUSTON D HUME C HILLCO a HOGMALAT 0 HOHOLUA B HOUSTON BLACK D HUMESTON C/D HILLEMANN C HOGRIS 0 HONOMANU A HOVOE D HUMKER C HILLERY C HOH B I HONONEGAH A HOVEN 0 HUMMINGTON C HILLE.T 8/Dj HOHMANN C I HCNOULIULI 8 HOVENWEEP C HUMPHREYS HILLFIELD B HOKO C@ HONTA S B/ HOVERT D HUMPTULIPS HILLGATE D HOLBORN C HONTOON e D@ HOVEY C HUMSKEL C HILLIARD B HOLBROOK B HONUAULU A HOWARD A HUN 6 HILLIARD, C HOLCOMB D HOOD B HOWARDSVILLE A HUNCHBACK D MODERATELY WELL HOLDAWAY D HOODLE B HOWCAN 8 HUNDRAW D DRAINED HOLDEN B H.OODOO D f HOWCPEE C HUNEWILL a NH:LLO H C HOLDER B HOODSPORT C I HOWE C HUNGRY C 0 ES*. TWO HYDROLOGIC SOIL GROUPS SUCH AS B/C INDICATES THE DRAINED/UNDRAINED SITUATION. MODIFIERS SHOWN, E-G.. BEDROCK SUBSTRATUM, REFER TO A SPECIFIC SOIL SERIES,PHASE FOUND IN SOIL MAP LEGEND. (210-VI-TR-55, Second Ed., June 1-986) A-19 Exhibit A-1, continued: Hydrologic soil groups for United States soils HUNNTON C ILDECARE B I IPISH C JACAGUAS 8 1 JEHEMY D HUNSINGER 8 ILDEFONSO 5 IPSON B JACANA D I JEKLEY C HUNTERS B ILES C IPSWICH D JACEE C JELLICO C HUNTERSVILLE 8 ILIFF C IRA C JACINTO 8 JEMEZ C HUNTIMER C ILITLI D IPAAN e. JACK CREEK A JENA B HUNTING C ILI ON D IREDELL C/Dj JACKET C I JENKINS C HUNTINGTON 8 ILLABOT C IRELAND C JACKLAND D JENKINSON D HUNTMOUNT B JENKS B ILLAHEE e IRENE B JACKMAN HUNTPOCK B ILLER E IPFTEBA 8 JACKNrFE C JENNESS 8 HUNTSBURG 0 ILLITO 0 IRIGUL I) JACKPORT 0 JENNINGS C HUNTSVILLE 6 ILTON C IRIM C JACKPOT C JENNY D HUPP B ILWACO a IRMULCO F I JACKS C I JENOR C HURDS 8 IMA 6 IROCK C JACKSON e JERAG D HURLBUT C IMBLER 8 IRON BLOSSOM C JACKTONE D JERAULD D HURLEY D IMLAY D I IRON MOUNTAIN D JACoe 0 JERICHO 0 HURRICANE C IMMIG C I IRON RIVER .8 JACOBSEN 0 JEROME D HURRY BACK 8 1 IMMIGRANT C I IPONCO V JACOBY C JERRY C HURRYBACK S I IMMOKALEE e/01 IRONDALE C JACOT 5 JERRYSLU C HURST D IMMOKALEE. 1) 1 IRONDYKE 8 JACOUES C JERU 8 HURWAL e DEPRESSIONAL I IRONSPR14GS 8 1 JACOUITH C JERVAL a I HUSE 0 IMOGENE D IPCNTON C I JACRATZ 0 JESSEL D HUSKA 0 IMONIL B IROOUOIS B/Dj JACWIN B JESSE CAMP a HUSSA D IMPACT A IRRAWADDY C I JADIS 6 JESSIETOWN B HUSSA. CLAYEY C IMPERIAL D IRRIGON C JAFA b JESSO C SUBSTRATUM INARAJAN D IPSON 0 JAGUEYES B JESSUP C HUSSA, MODERATELY C INAPAJAN. C IRVINE 0 JAL E JETCOP 0 WET STRATIFIED IRVINGTON C JALMAR A I JETSTER C HUSSA. DRAINED 8 SUBSTRATUM IRWIN D. JAMES D I JETT 8 HUSSELL A INAVALE A ISAAC C JAMES CANYON C I JEVETS C HUSSMAN 0 1 INCELL 0 1 ISABELLA 5 JAMES CANYON, 0 JEWETT B HUSUP. 3 INCHAU C ISAN A/Dj DRAINED JIGGS a I HUTCHINSON C INCHELIUM, E ISANTI A/D1 JAM.ESTON C/01 JIGSAW C HUTCHLEY D INCY A ISCELL 0 JANISE C I JILSON D HUTSON 9 INDART C ISELLA 8 JANISE, OVERBLOWN. B I JIM C HUTT 1) INDEX A ISPI PISHI C DRAINED I JIMBO e HUTTON 0 INDIAHOMA 0 ISHPEMING A JANSEN 8 1 JIMCREEK C HUXLEY C INDIAN CREEK D ISIDOR D JANUDE e I jrMEK C HUYSINK 9 INDIANO C ISKNAT C JANUDE. CLAY C I JIMENEZ C HYALL C I INDIANOLA A I ISKNAT. COOL D SUBSTRATUM JIMLAKE B HYANNIS 8 INDIO 8 ISLAND e JARAB D JIMMERSON C HYAS 8 IN6LETON 8 ISLES C JARBOE 0 JIMSAGE 0 HYATTVILLE C INDUS D ISLES, SLOUGH A/Dj JAPDIN D JIMTOWN C HYDASURG D INEZ D ISLOTF e I JAPEALES 0 JIPPER B HYD_- 0/01 INFERNAL D I ISMAY B JARITA C JIVAS a HYDER D INGALLS 8 1 ISmC C JARMILLO e JOACHEM 0 HYDRO C INGENIO e I ISCILDE A JAROLA C JOB C HYE 6 INGERSOLL 8 1 Isom 8 JAROSO B JOBOS C HYLOC D INGRAM D ISTER C JARRE B J05PEAK D HYMAS D INKLER 8 ISTOKPOGA B/D1 JARRON D I JOCAL B HYPPAIRIE 8 INKOM 0 rTANO C I JARVIS E I JOCITY 5 HYRUM B INKOM. DRAINED C ITASCA e I JASCO D I JOCITY. LOAMY C HYSHAM D INKOSP 0 1 TAT V JASON 0 1 SURFACE HYSHOT D INKS D ITCA D JASPER B I JUCKO B HYTOP D INKSTER E ITHACA C JAUCAS A I JOCEPO B HYZEN D INLOW C ITMANN C JAUCAS. SALINE C JOEL B IAO B I INMACHuK D I ITME A JAURIGA B JOEMPE a IBERIA D I INMAN C ITSWOOT 6 JAVA B JOENEY D ICARIA D INMO A IVKA C JAWBONE D JOES 8 ICENE D INNINGER C IVA C JAY C JOEVAR B ICESLEW D INPENDENCE 6 IVAN B JAYAP C JOHNS C ICHOOD 0 INSAK 0 IVANELL C JAYBEE 0 JOHNSSURG D ICHETUCKNEE D INSIDERT C I JVANHCE D JAYEL 0 JOHNSON B ICICLE 0 INSKIP C I IVER a JAYEM F1 JOHNSTON IDA 8 INSULA D IVERSEN C JAYNES D JOHNSTOWN IDABEL 8 INTERIOR B IVES F JEAGER C JOHNSWOOD e IDAHOME B I INTON P IVES,, WET D JEAN A JOHNTOM D IDAMONT 6 1 INVERNESS 9 IVIE A JEAN LAKE 0 JOICE D IDEE C INVEPSHIEL C IVINS C JEANERETTE 0 JOINER B IDLEWILD D INVILLE B IVYWILD C JE6E 6 JOKODOWSKI 0 IDLEWILD. DRAINED C 10 B IXIAN C JE80 e JOLAN C IDMON B IOLEAU C IYERS 0 JEDBURG C JOLIET D IGDELL C IONA B 1ZAGORA C JEOD C JOLLY C IGERT C IONIA 6 JZAP D JEDDITO C JONALE B IGNACIO C 10SCO 0 IZEE C JEDDITO. P I JONAS 5 IGO D TOSEPA 0 1 170 A I SALINE-ALKALI I JONATHAN 8 IGUALDAD D IOTLA 6 IZOD D I JFDDO C/Dj JONCA C IHLEN 8 ]PAGE A IZUSER B I JEFFERS e/Dj JONDA 6 IJAM 0 IPANO C JAPU 8 1 JEFFERSON B JONES B ILACHETOMEL D IPAVA 6 JABU. WET C I JEFFREY 0 JONESVILLE 8 NOTES: TWO HYDROLOGIC SOIL GROUPS SUCH AS B/C INDICATES THE DRAJNEO/UNDRAINED SITUATION. MODIFIERS SHOWN, E.G., BEDROCK SUBSTPATUM. REFER TO A SPECIFIC SOIL SERIES PHASE FOUND IN SOIL MAP LEGEND. A-20 (210-VI-TR-55, Second Ed., June 1986) Exhibit A-1, continued: Hydrologic soil groups for United States soils JONIN I C C I KAHANA 8 1 KAPLAN 0 1 KEE 1 0 1 KERMIT A JOPL I N C KAHANUI D I KAPOD B I KEEKEE B I KERNAN C JOPPA 8 K AHLE 11 B KAPOWSIN 0 1 KEEL C I KERR 8 JORAIBI 8 KAHLOTUS 5 K AP I UPE 8 1 KEELDAR 8 1 KERRDAM C JORDAN D KAHOLA 8 KAPUHIKANI D KEELE B I KERRFIELD D JORGE 8 KAHUA D KARAMIN A KEELER 6 KERRICK B JURNAHAM 8 1 KAIDERS 13 KARANKAWA D KEELINE 8 KERRVILLE C JORY B KAIKLI 0 KARBANA C KEENE C KERSHAW A JORY. STONY C KAILUA A KARCAL D KEENO C KERSICK D JOSBURG C KAIMU A I KARDE B KEESE D KERSION A/D JOSEPH C KAINALIU A I KAPHEEN D KEESEHA C I KEPT C JOSEPHINE 0 KAIPOIOI B 8 f KESSLER C I KAPLAN C KFESIAN JOSHUA C KAIWIKI A KARLIN A KEETER C KESSON D JOSIE 13 1 KALAE B I KARLD D KEEWATIN C KESTERSON 0 JOSLIN a KALALOCH 8 KARLSBURG E KEG B KESWICK C JOSSET C KALAMA C KARLSRUHE e KEGEL D KETCHLY B JOURDANTO" 11 KALAMAZOO 11 KARLSTAD A KEGEL, DRAINED C KETCHUM B JOWEC 0 KALAPA B KARLUK D KEGONSA 8 KETONA 0 joy 8 KALAUPAPA D I KAPPA e I KEHAR 0 f KETTENEACH C JUAB B KALEETAN 8 1 KARNAK D KFHENA C I KETTLE JUANA DIAZ B KALEETAN, TILL C I KARNES 6 KEHOE 3 1 KETTLEBELLY JUBILEE 0 SUBSTRATUM I KAROC 8 KEIGLEY e I KETTLEMAN C JUBILEE. DRAINED 0 KALIFONSKY D'D KAPPr D KEISER 5 1 KETTLEMAN. 8 JUDA 8 KALIGA E! KARRO B KEITH 5 GPAVELLY JUDD C KALIGA, FLOODED D K ARS A KEITHVILLE C KEITNER b JUDELL 5 KALIHI D KAPSHNER C) KEKAHA 0 KEUTERVILLE B JUDICE D KALISPELL 8 KARTA C KEKAKE D KEVANTON C JUDITH 6 KALKASKA A KARTAR B KEKAWAKA 5 KEVIN C JUOKINS C KALLIO, C K ASEBERG D KELK C I KEWACH C JUDSON a KALMAR ILLE B/Dj KASHWITNA B I KELLER C I KEWAUNEE C JUDY C KALMI& B KASKt e I KELLERBUTTE E I KEWEENA% A JUG 8 KALD C KASOTA C KELLY 0 1 KEYA 8 JUGET 0 KALOKO D KASSLER A KELSEY 8 KEYES D JUGHANDLE B KALONA C KASSON C KELSO C KEYESPOIN7 D jUGSON C KALSIN D KATAMA B KELTNER B KEYNER D JULES 6 KALST60 8 1 KATEMCY C I KELTYS 8 1 KEYPORT C JULESBURG 5 KAMACK 8 1 KATHER C I KELVIN C I KEYSTONE A JULIN D KAMAKDA 6 1 KATO O/Dj KEMAH D I KEZA" D JUMBO 8 KAMAN D I KATSEANES 0 1 KEMAN 0 1 KEZAR C JUMPCREEK.' C KA%1AQA B KATULA C I KEMMERER C I KIAKUS C JUMPE B KAMAOLE B KATY D KEMOO B K I AN C JUMPER C XA4AIO C I KAIYBLAf b KUMP C KIANAH B/D JUMPMORE 8 KAMAY D KAUDER D KEMPSVILLE E KIBBIE 8 JUMPUFF C KAMELA C KAUFMAN D KENAI C KIBESILLAH C JUNALUSKA 8 KAMIE 8 KAUKAUNA C KENANSVILLE A KICKAPOO B JUNCAL C KAMPVILLE C KAUPO, A KENOAIA C KICKERVILLe 8 JUNCOS, 0 KAMRAR e KAUPP B KENDALL B KIDD D JUNCTION 8 KANACKEY D KAVETT D I KENDALLVILLE 0 KIDDER 8 JUNEAU B KANAKA 0 KAVON B I KENDRICK A KIDMAN B JUNG D KANAPAHA 8/01 KAWAIHAE C KENEFICK 0 KIEHL a JUNGO B KANARANZI 8 1 KAWAIHAPAI V KENESAW B KIESEL C JUNIPERBUTE A KANARRA D I KAWBAWGAM C KENMCOR 8 KIETZKE 0 JUNIPERO 9 KANASKAT E I KAWICH A KENN 8 KIEV 8 JUNIUS C KANAWHA B I KAWKAWLJN C I KENNAN 8 1 KIKI C JUNKETT C KANDALY A KAYMINE C I KENNEBEC R KIKONI 8 JUND A KANDIK 0 KAYD e KENNER D KILAGA C JUNQUITOS C KANDOTA 8 KEAAU 0 KENNEWICK 6 KILARC 0 JUNTURA D KANE 5 1 KEAHUA 0 KENNEY A KILAUEA B JUPITER B/Dj KANESPEAK C I KEALAKEKUA A KENNEY LAKE C KILBURN 8 JURA D I KANEOHE B KEALIA C KEND D KILCHIS D JURVANNAH C I KANEPUU 8 KEANSBURG 0 1 KENOMA D KILDOR C JUSTESEN C I KANER A KEAPL C I KENOTPAIL C KILFOIL C JUSTESEN. LOAMY 8 1 KANG C KEARNS b I KENRAY A KILGORE D SUBSTRATUM KANGAS A KFARSARGE P KENSAL B KILKENNY B JUSTIN 5 KANID B KEATING C KENSETT 0 KILLARNEY C JUVA B KANIKSU 8 KEAUKAHA D I KENSPUR 6 KILLOUCK C/O JUVAN 0 KANIMA C KEAWAKAPU E KENT 0 KILLOUFF KAALUALU A KANKAKEE 6 KEe-LEP e KENUSKY 0 KILLEY KACHEMAK B KANLEE C KECH 0 KENYON 0 KILLEY, MODERATELY C KACHESS 5 KANONA D KFCKC B KEC B WET KADE D KANOSH C KECK$ROAD C KEOKUK 0 KILLINGTON D KADLETZ B KANTISHNA D KEDA 8 1 KEOMAH C KILLPACK C KADOKA B KANUTCHAN 0 KEDDIE C I KEOTA B KILMANAGH C KAENA 11 K AN ZA D KEDR ON C KEOWNS 8/01 KILMER C KAFING a KAPAA e KEE e KEPLER C I KILMEPOVE C KAGMAN C KAPAPALA 8 KEECHELUS C KERBER 8 1 KILN D KAGMAN@LVERY 0 KAPAPALA, BEDROCK C KFECHI C KERBY 8 1 KILOA A GRAVE Y SUBSTRATUM KEEFA 0 KERHAYDEN 8 KILCHANA A KAHALUU 1) KAPIN C KEEFERS C KERL 8 KILOWAN C NOTES' TWO HYDROLOGIC SOIL GROUPS SUCH AS B/C INDICATES THE DRAINED/UNDRAINED SIYUATION,. MODIFIERS SHOWN, E.G.. BEDROCK SUBSTRATUM, REFER TO A SPECIFIC SOIL SERIES PHASE FOUND IN SOIL MAP LEGEND. (210-VI-TR-55, Second Ed., June 1986) A-21 Exhibit A-1, continued: Hydrologic soil groups for United States soils K jLW INNING D I KIT1ITAS D r DDP A C KPESSON C LACDNNER C Kim 5 KITTITAS; DRAINED C KOEHLER C KREYENHAGEN 8 LACOOCHEE D K M. SALINE C KITTREOG a KOCLE E; KPIER D LACOSTE C KIMAMA B KITTSON C KOfPKE e KPIEST e LACOTA B KIMBALL 0 KIVA A f KCEPLINC 0 LACRESCENT 0 KIMBEPLINA a KIWANIS P KOETHER CD 1K` R 00 N 0 0 LACROL D KIMBERLY B KIZHUYAK F KOFA D KPUEATE B LACY D KIMBROUGH D KJAP 0 KOFA. SALINE C KRUEGER 0 LADD 8 KIMMERLING 0 KLA&EP D K CFF GO 6 KRUM D LADELLE B KIMO C KLASER, DRAINED C KOGISH D KRUSE e LADE9LY C KIMPEP 3 KLADNICK A KOHALA a K UE1 E 0 LADNER 0 KINA 0 KLADNICK. STONY 6 KCKAN A KUeLEP C LADOGA 8 KINAN 8 KLAMATH D KOKEE a KUBLI D LADRON 8 KINCHELOE D KLANELNEECHENA 0 KCKERNOI C KUCEPA 0 LADUF a KINCO A KLANELNEECHENA. C KOKO B KUCK C L ADYCOMB 0 K 1140E: R C LACUSTRINE KOKCKAHI C KUDLAC 0 LADYSMITH D KINJIG 9 SUBS TPATUM KOKOKAHI STONY 6 KUHL D LAFE D KINOY C KLAPATCHE C KOKOMO 13/Dj KUKAIAU A LAFITTE D KINESAVA 6 KLAUS C I KOLAR 0 1 KUKAIAU, BEDROCK C LAG a KINGDON 8 KLAWASI 0 1 KOLSEPG C SUBSTRATUM LAGITOS C KINGFISHER 9 1 KLAWASI. 6 KOLEKOLE C KULA 8 LAGLORIA 8 KINGHORN D I LACUSTRINE KOLIN C KVLLIT 8 LAGNAF 0 KINGILF C SUBSTRATUM KOLLS D KVLSHAN C LAGONDA KINGINGHAM C KLAWATTI C KnLLUTUK D KUMA F LAGRANGE D KINGMAN D KLAW40P e KOLOA C KUNATON D LAGROSS A KINGMONT 5 KLAYENT C I KOLOF) P. KUNAYOSH A LAGUNITA A KINGS 0 KLECKNER C KOLOS, STONY C KVNIA 13 LAGUNITA. WET C KINGSBURY D KLEINBUSH C KCLOKOLO e KUNUWEIA B LAHAINA B KINGSDOWN 5 KLEJ 8 KOLON13KI e KUN Z B LAHONTAN D KINGSLANO A/Dj KLICKER C KOMO P KUNZLER 8 LAHRITY C KINGSLEY 8 1 KLICKITAT 8 KONA D KUPPEANDF B LAIDIG C KINGSPOINT B I KLICKSON a XONAWA e KUPREANOF, C LAIDLAW C KINGSTON B I KLINE. COVBLY e KGNEPT C MODERATELY WET LAIL C KINGSVILLE A/D1 KLINE. PROTECTED C KnNEPT, DRAINED C KUREB A L@AIRD 8 KINGTAIN 8 1 KLINESVILLE CID I KONNER D K UR 0 0 1 LAIPDSVILLE 0 KINKEAD C K L I N G E -'@ 9 1 KONNFP. V;?AINEL1 C KURTH C I LAJARA 0 KINKEL C KLISKON C I KONOCTI C KURTZ C LAJI TAS 0 KINKEL, GRAVELLY 6 KLJSTAN . I KONOCTI. STONY 6 KUSHNEAHIN 0 LAKE A KINKORA 0 1 KLONDIK@@ D I KCNS IL 0 KUSKOKWIM D I LAKE. CLAYEY C 9JNMAN C rLONE e KOOLAU C I KUSLINA 0 1 SVRFACE KINNEAR 3 KLDOCHMAN C KOCNICH A I KUTCH C LAKE CHARLES D KINNEY a KLOOTC.H C KOONTZ D I KUILER C LAKE CREEK C KINROSS A/01 KLOOTCHIS 6 1 KOOSHAREA F I KUY A I LAKE JANEE a KINSMAN C I KLOTEN 0 1 KCOSK fA C I KVICHAK B I LAKEFIELD 8 K114STON 8/D1 KLUG 3 1 KCOTENAI e t KWEO A I LAKEHELEN C KINTA D KLUM C I KOPIE D I KYBUPZ B LAKEHURST A KINTON C KLUMP P I KLPPEPL P. KYOAKA 0 LAKELAND A KINZEL B KL(jTINA 9 1 KOPPES A KYDESIEA 0 LAKEMONT 0 KIOMATIA A KNAPKE -3 1 KORCHFA a KYLE D LAKEPORT 8 K IONA, 0 rNAPPA El I KCRENT C KYLER D LAKESHORE I) KIOTE 9 KNAPPTJN 5 K CRNVAN e KZ IN 0 LAKESIDE KI-ER a KNEELAND C KOPOPAGO C LA FJP IEQ D LAKESCL KIPLING D KNEP C KOPONIS r LA FARGE P LAKETON C KIPPEN A KNICKEPOLCKER A KOPTTY v LA FONDA E LAKEVIEW C KIPSON D I <NIESLEY C KOSCIUSKO e I LA GRANDE C LAKEVIN e KIRBY A I KN7FFIN C KOSETH 8 1 LA HOGUE 0 LAKEWOOD A KIQ5YVILLE 8 KNIGHT 6/01 KCSPOS D I LA LANDE e LAKI 5 1 KIRK 0 KNIK 0 1 KOSSE 6 1 LA PALPA C LAKIN A KIRKENDALL C KNIKLIK P I KOSSUTH 6/01 LA POSTA 0 LAKCA B KIRKHAM C KNIPPA C I r 0@-Z TA 6 1 LA PRAIRIE 6 LAKOMA D KIRKLAND 0 KNOB HILL 8 1 K070 D LA POSE e I LAKRIOGE C KIRKSFY C KNOUTOP C I KOTZMAN B LABENZO e I LALAAU A KIRKVILLE C KNOCO 0 1 KOURY C I LABETTE C I LALINDA B KIRLEY C K NOK E 6/01 KOVICK 0 1 LABISH D I LALLIE 0 KIPTLEY C KNOLLE a I XOYEN R LABKEY 0 1 LALDS B KIRVIN C I KNOSS C I KOYNIK D LA80RCITA F I LAM D KIRVIN, GRADED D KNOTT 0 1 KOYUKUK P LABOU 0 1 LAMA C KISATCHIE D KNC9LES 5 KPACKLE 0 1 LABOUNTY 0 1 LAMANGA C KISHONA 6 1 KNO X 0 1 KPADE E I LABRE 8 1 LAMAR a KISHONA. ALKALI C KNOLL 8 1 KPAKON D I LABSHAFT D I LAMARSH C KISRING C KNUTSEN 6 1 KPAM D I LA9U D I LAMARTINE C KISPING, WET D KOBAP C KRANSKI 6 1 LAeUCK 0 1 LAMATH 0 KISSICK C KOBEH B KRANZ8UPG e I LACAMAS D I LAMAWA 8 KISTIRN 6 KOBEL D K P A I K A E/01 LACEPOA 0 1 L A fl. 8 E R T 6 KITCHELL 5 KOCH 0 KRAUSE e I LACHAPELLA D I LAMBETH 5 KITCHEN' CREEK B KOCH. DRAINED C K P E A M E 9 C I LACITA 6 LAMSMAN 1) KITI D KODAK e. KPIESS F I LACKAWANNA C LAMBRING e KITSAP C I KODAK. NONFLOODZD C KPFM A I LACKS C I LAMEDEEP 6 KITTEPLL 0 1 KODIAK 0 1 KPE-LIN 0 1 LACLEDE 8 1 LAMINGION D NOTES' TWO HYDROLOGIC SOIL GROUPS SUCH AS e/C INDICATES T4E [)PAINED/UNCPAINED.51TUATION. MODIFIFRS SHOWN. E.G.. 4EDPOCK SUBSTRATUM, REFER T-) A SPE@CIFIC SOIL 56RIES PHASE FOUND IN SOIL MAP LEGEND. A-22 (210-VI-TR-55, Second Ed., June 1986) Exhibit A-1, continued: Hydrologic soil groups for United States soils LAMKIN 8 LARIAT 6 LAVINA D LEETONIA C LEN I, LAMO C LARIM E LAVON C LEEVAN C LEWBEACH C LAMOILLE 8 LAP IHER B LAWAI V LEFOP 8 LEODLAC D LAMONDI B LAR IOSCAMP D LANE N 6 LEGALL 8 LEWIS D LAMONI C LARKIN 8 LAWET B/D1 LEGAULT D LEWISeERRY a LAMONT B LARKSON C LA*ET, B LEGGETT C LE%ISBUPG C LAMONTA D LARMINE D SALINE-ALKALI LEGLER 8 LEWISTON C LAMOOSE 11 LA1104DUE 8 LAWLER E LEGOPE P LEWISVILLE B LAM.OTTE 8 LAROSE D LAWNDALE L LEHEW C LEWKALB C LAMOURE C LARRUPIN 8 LAWNWOOD E/Dj LEHIGH C LEX B LAMPASAS D LARRY D LAWNWOOD, D I LEHMANS 0 1 LEXINGTON B LAMPHIER B LARRY . DRAINED C DEPPESSIONAL LEHR E! LEXTON R LAMPSHIPE 0 LARSON D LAWRENCE C LEICESTER C LEYBA E LAMSON B/Dj LAPTON A I LAWRENCEVILLE C LEIDL C LEYDEN C LANARK 9 LARUE A LAWSHE D LEIGHCAN 8 LIBBINGS I, LANCASTER 8 LARUSH B LAW50N C LEILEHUA 0 LIBEG 8 LANCE 6 LARVIE D LAWTHER D LEISY 0 LIBERAL D LAND C LAS C LAWTON C LELA D LIPORY A LAND;VDPAINED 0 LAS ANIMAS C LA*YEP ? LELAND D LIBRARY D LAND ASO 8 LAS FLORES D LAX C LEMAH A LIBUSE C LANDCO C LAS LUCAS 6 LAXAL B LEMBOS C LICHA B LANDER C LAS POSAS C LAXTON C LEMCO C LICK 0 LANDES B LAS VEGAS D LAYCOCK 8 LEMERT D I LICKDALE D LANILOW C LASA A LAYOINT C LEMETA D LICKING C LANDMAN B LASALLE 1) LAYTON A LEMING C LICKSKILLET D LANOSEND C LASAUSES D LAYVIEW D LEMITAP D LIDAN C LANE C LASCO L, LAZAN D LEmM 8 LIDDELL B/D LANESBORO C LASIL D LAZEAR D LEMOLO D LIDDIEVILLE 6 LANEXA D LASKA 0 LE BAR B LEMOND B/D1 LIDY F LANEY B LASSEL C LE SUEUP 8 LEMONEX C LIEBERMAN a LANG C LASSEN 0 LEA C LEMOORE C LIEN D LANGFORD C LASSITER 0 LEADER e LEMPIRA B LIESNOI D LANGHEI 8 LASTANCE a LEADORE S LEN C LIGGET a LANGLADE 8 LATAH 0 LEADPOINT C LENA A/Dj LIGHTNING D LANGLOIS D LATAH, HIGH C LEADVALE C LENA. FLOODED D LIGNUM C LANGOLA B PAINFALL;,DPAIN.ED LEADVILLF e LENAPAH 0 LIGON D LANGRELL 9 LATA.H, OR NED C LEAF D LENAWEE B/D1 LIGURTA B LANGSPRING B LATAHCO C LEAFRIVER A/01 LENAWEE. PONDED D LIHEN A LANGSTON 6 LATAHCO. WET 0 LEAFU C I LENBERG C LIHUE 8 LANGTRY 0 j LATANIER D I LEAGUEVILLE B/Dj LENNEP C LIKES A LANIER A LATCH A LEAKSVILLE D LENOIR D LILAH A LAN IGER B LATENE 8 LEAL 6 LENZ 8 LILBERT a LANIGER. GRAVELLY C LATES C LEALANDIC 1) LENZ. STONY C LILBOURN B LANKSUSH B LATEX C LEANNA D LENZ, VERY STONY C LILLINGS B LANKIN C LATHAM, 0 LEANTO D LENZBURG 8 LILLINGTON It LANKTRFE C LATHER 0 LEAPS C LEO .6 LILLYLANDS C LANDAK B LATHROP 11 LEATHAII..' C LEOLA 8 LILTEN C LANONA B LATIGO a LEATHER D LEON 8/D1 LILY B LANSDALE a LATINA D LEAVENWORTH C LEONARD D LIM C LANSDOWNE C LATIUM D LFAVERS E LEONARDO 0 LIMA e LANSING 9 LATOM D LEAVITT 6 LEONARDTOWN D LIMBER a LANTERN 8 LATONIA e LEAVITTVILLE e LEONI B LIMEKILN D LANTLS 5 LATOUCHE D LEPA M E, LEGUIEU D LIMER:CK, C LANTON D LATOUR 8 LEEANON C LEPDAL C L MER DG D LANTON. LOW C LATOUPELL 8 LEBEAU 0 LERDO C LIMKING B PRECIPITATION LATTAS D LEBEC B LEROY 6 LIMON C LANTONIA 8 LATTY D LEBO P L EPR ON C LIMON. WET D LANTRY 5 LAUDERDALE LE8SACK C LESHAPA 5 LIMONES 8 LANTZ D LAUDERHILL 8 LECK KILL B LESHO C LIMPTA C LANVEP C LAUFER 0 LECPAG D LESLIE D LINCO 6 LANYON C/D1 LAUGENOUP. LOAMY C LEDFORD 8 LESON D LINCCLN A LAP D SUBSTRATUM LEDGEFORK A LESPATE C, LINDAAS C/C LAPARITA C LAUGENOUR. SILTY B LEDMOUNT D LESTER e LINDALE C LAPDUN B SUBSTRATUM LFDOW B LESWILL E LINDELL C LAPED D LAUGENOUR. DRAINED 8 LEDRU I, LETA C LINDEN B LAPEER B LAUGHLIN C LEDUS e LETCHEP D LINDER 8 LAPHAM A LAUMAIA e LEDWITH e/D1 LETHA C LINDLEY C LAPINE A LAUREL D LEE D LETHENT D LINDRITH 0 LAPLATTA C LAURELWOOD B LEEBENCH D LETNEY A LINDSIDE C LAPON D L AURE 11 6 LEE D S C LETON D L ; ND S I R 0M. 5 LAPORTE D LAURENTZEN 8 LEEFIELD C LETOPT B L NDY C L4POSA C LAVACREEK 8 LFEKO C LETRI B/D1 LINE 8 LAPWAI 8 LAVALLEE B LEEKO. WARM B LETTIA B LINEVILLE C LARAND B LAVATE B LEELANAU A LEVASY C LINGANORE 8 LAPCHMOUNT B LAVEAGA C LEEMONT D LEVELTON D LINHART A LARDELL C LAVEEN B LEEPEP D LEVELTON. DRAINED C LININGER C LAREDO 6 LAVENTANA 8 1 LEEPAY 0 J.LEVEAETT C I LINKER B LARES C LAVERKIN C I LEESBURG 8 LEVIATHAN B LINKUP D LARGO B LAVIC B I LEESVILLE e LEVY D LINKVILLE B NOTES. TWO HYDROLOGIC SOIL GROUPS SUCH AS B/C INDICATES THE DPAINED/UNDRAINEO SITUATION. MODIFIERS SHOWN. E.G.. BEDROCK SUBSTRATUM. REFER TO A SPECIFIC SOIL SERIES PHASE FOUND IN SOIL MAP LEGEND. (210-VI-TR-55, Second Ed., June 1986) A-23 Exhibit A-1, continued: Hydrologic soil groups for United States soils L:NL I THGO 8 LODI 8 1 LOPEZ C, I LOZANO 8 LYLES B/D L NNE C LODICO D I LOPWASH 8 LOZIER D LYMAN C/D LINNET C LODO D I LORACK 0 LUALUALEI D LYMANSON C LINNEUS B LOFFTUS C I LORADALE C LUANA 8 LYME C LINO 8 LOFTON C, I LORAIN C/Dj LUAP C LYNCH D LINOYER a LOGAN 0 1 L oPA N e I LUBBOCK B LYNCHBURG C LINPOSE C LOGDELL B LORAY A I LUBRECHT C LYNDEN e LINSLAW D LOGGEkT 0 L ORD 5 10- N C LUCAS D LYNN HAVEN B/ D LINT e LOGHOUSE & LOPEAUVrLLE C LUCE C LYNNEIOW 0 LINTON 8 L DGP I NG D LOPELLA C LUCEDALE 8 LYNNDYL A LINVELDT B I LOGY a LOPENA C LUCERNE e LYNNE B/D LINVILLE ;3 1 LOHLEP C LORENZO b LUCERD 5 LYNNVILLE C LINWELL C I LOHMILLER C LCPETTO S I LUCIEN C LYNNWOOD A LINWOOD A/D1 L OHNE 5 A L OR I NC C I LUCILE. MODERATELY C LYNX 5 LIPAN D I LOHSMAN C' LOPMAN 0 1 WET I LYNXCREEK 8 LIPKE 0 1 LOIrE F LORTA e LUCILE. DRAINED F I LYONMAN B LIPPINCOTT B/Dj LOKEN C LOS ALAMOS C LUCKENBACH C I LYONS D LIPPITT C I LOKERN C f LOS EANOS C LUCKIAMUTE D I LYONSVILLE B LIRIOS 3 LOKERN, D LOS GATOS C I LUCKY C' I LYRA D LISADE a S-LINE-ALKALI. LOS GUINEOS C I LUCKY STAR e I LYRE 8 LISAM D WET LCS OSOS C I LUCKYRICH V I LYSTAIR 8 LISBON R LOKEPN. U L C-S POBLES B I LUCY A I LYTELL e LISCO C SALINE-ALKALI LCS TANOS C I LUD D I LYVILLE 6 LISCOMB 5 1 LDKOSEE B/Dj LOSANTVILLE C LUDDEN D I LYX B LISK 8 LOLAK D I LOSEE 5 LUDINGTON 8 1 MABANK D LISMAS 0 LOLALITA & I LCSTbASIN C LUDLOW C I MABEL C LISMORE 8 LOLEKAA 6 1 LOSTCREEK B LUEDERS C I MABEN C LITCHFIELD A I LOLETA C I LC.ST INE F LUFKIN D I MA81 0 LITHGOW C I LOLITE D I LOSTrOINT 0 1 LUGERT F I MABRAY 0 LITIMBER 8 1 LOLO e LCSTSPRING 8 1 LUGOFF 8 1 MACAR 8 LITLE D LOLON e LOSTVALLEY C LUHON 6 1 MACAREENO D LITRO D LOLOPEAK A LOSTWELLS 8 LUKE C I MACE 8 LITTLE HORN C LOMA C LOSTWELLS. WET C LUKIN C I MACEDONIA B LITTLE POLE D LOMAKI 8 LCTHAIR C LULA B I MACFARLANE B LITTLE WOOD B LOMALTA D LCTT C LULING D I MACHETE C LITTLEAXE D LOMART P LCTUS C LULUDE C I MACHIAS B LITTLEBEAR 13 L 0.14 A X 6 LCTUSPOI14T C LUMBEE 8/01 MACHUELO D LITTLEJOHN C LOMETA C LOU E LUMBEPLY 8 1 MACK P LITTLENAN C LOMJLL D LOLIOEP5ACK C LUMMER 8 1 MACK. LOAMY C LITTLETON 8 1 LOMIRA 5 1 L OLD ON C LUMMI 0 1 SUBSTRATUM L I I I S A N C I L OM I I A 5 L I LOUDONVILLE C LUMM I . . DPA INED C I MA CKE N 0 LITZ C I LOMOINE C I LOUFLLA B LUMMUS C I MACKERP ICHE R A LIV D I LOMOND 6 1 LOUGHBORO C LUNA C I MACKEY C LIVEO6K B LONCAQ 6 1 LOUIE C LUND13P D I MACKSHURG 8 LIVEPMORE B LONDO C I LOUIECPEEK e LUNDS C I MACMEAL 8 LIVIA D LONDONDERRY C/01 LOUIN D I LUNDY D I PACCMB P LIVINGSTON 0 LONE C I LOUISA e I LUNINr A I MACOMBER C LIVONA 9 LCNE POCK 8 1 LCUISPURG D I LUNT C I MACON B LIZE 8 LONEBEAR D LOUP D I LUPE 6 1 MADALIN D L I ZZANT 8 LONELY C LCUPLOUP F LUPINTO E I MADAWASKA 8 LLANDS C LONEPINE 5 LOURDES C LUPINTO. SALINE C I kAODEN C LOARC El LONEPIDGE C LOUSCOT C LUPOYOMA 8 1 MADDOCK A LOSDELL 0 LONESTAP L' LOUVIEPS D LUPPINO D I MADELIA B D L09ELVILLE C LONETREE A L CVF JOY C LUPTON A/D1 MADELINE D LO5EPG C LONEWOOD B LCIVELACE e LUPTON. PONDED D I MADERA D LOBEPT 6 LONGCREEK D LCVELAND C LURA C/D1 MADGE 6 LOBITOS C LONGFORD C L F-VF LAND . D LURAY C/D1 MADILL a LOBO D LONGJIM D ELEVATION>6500 LURNICK C I MADISON a LOBURN D LONCLOI@ P LOVELL I' LUSETTI B I MADONNA C LOCANE D I LONGMAQE I' LCVELOCK C LUSK C I MADRAK C LOCEY C I LONGMONT C LOVELOCK. C LUTA 8 1 MADRAS C LOCHLOOSA C LONGRIE 8 SALINE-ALKALI LUTAK 5 MADRID B LOCHSA S LONGVAL a LOVELOCK, DRAINFO C LUTE D MADRGNE C LOCKE 8 LONGVIEW C LOVFUELL 8 LUTH C MADUREZ B LOCKERBY C LONIGAN P L OVL I NE C LUTHER e MAES 8 LOCKERBY. COBBLY D LONIGAN. COE19LY C I LCWFLL C I LUTIE e MAGALLON e LOCKHART 9 SUBSTRATUM LCWERCREEK A I LUTON 0 MAGDALENA 0 LOCKPDRT D LON10619 8 LOWWBES 0 1 LUTZKRLOH e MAGS126 a LOCKTON 8 LONNA 8 LOWRY F I LUVEPNE C MAGGIN C LOCKWOOr a LCNOKE 9 1 LOWS E/Dj LUXOR D MAGHILLS 8 LCCKWOOD. WET C LONTI L) LOWVILLE 0 LUZENA D I MAGIC D LOCO C LOOKINGGLASS C LOX C LYBROOK 0 1 WAGINNIS 0 LOCODA D I LOOKOUT C I LbXLEY AID1 LYDA D I MAGNA D LOCUST C I LOOMEP C@ I LOYAL B I LYDICK B I MAGNET C LODALLEY D I LOOMIS D I LOYALTON D I LYERLY D I MAGNOR C LODAR D LOONY C I LOYSVILLE D I LYFOPD C I MAGNUS C LODF 3 LOPER C I LOZA 0 1 LYKENS C I MAGOTHA 0 NOTES: TWO HYDROLOGIC SOIL GROUPS SUCH AS B/C INDICATES THE CRAINED/UNDRAINED SITUATION. MODIFIERS SHOWN. E.G., BEDROCK 3UBSTPATUM. REFER TO A SPECIFIC SOIL SERIES PHASE FOUND IN SOIL MAP LEGEND. A-24 (210-VI-TR-55, Second Ed., June 1986) Exhibit A-1, continued: Hydrologic soil groups for United States soils MAGOTSU 11 1 MA4AWA C MARGO 8 M.APYSTOWN C MAY MAGUAYD C MANBUR N D MARIA e MASADA C MAY DAY 0 MAHALA 0 MANCELONA A MAR IANA C MASARDIS A MAYACAVA C MAHALASVILLE B/Dj MANCHESTER A MAPIAS 0 MASAPYK A MAYBELL A MAHAN C MANDAN 8 MARIAVILLE 0 MASCAMP D MAYBERRY 0 MAHANA 6 MANDAR IN C MARICAD B MASCARENAS C MAYSESO D MAHASKA 6 MANDERFI@LD 0 MARICOPA 8 MASCHETAH 6 MAYBID 0 MAHOGAN C MANDEVILLE 5 MARIETTA C MASCOTTE 0/01 MAYDOL a MAHONING D MANDY C MARILLA C MASCOTTE. D I MAYER B/D MAHOOSUC A MANET 6 1 MAPIMEL C DEPRESSIONAL MAYE S D MAHTOMEDI A MANFRED D I MARIMEL. DRAINED B MASET MAYFIELD 0 MAHTOWA C/Dj MANGUM 0 M AP I NA 5 MA5HA4 0 MAYFLOWER C MAHUKONA a MANHATTAN A KARINE C HASHEL 6 MAYGER C MAIA B I MANHFIM C MARION D MASHULAVILLE B/D1 MAYHEW D MAIDEN C I MANI C MARI PC! S MASKELL B MAYMEAD 8 MAILE A MANJIKAN B MAP IPo 5 A C MAS ON B MAYMEN D MAINSTAY D MAN LA C MARISCAL D MASONFORT D MAYNARD LAKE A MAITLAND B MANISTEE A MAPISSA C MASONTOWN 0 MAYO B MAJADA 8 MANITA C MAPKES D MASSACK C MAYODAN B MAJUSA C MANITOWISH e MARKESAN 6 MASSACK. DRAINED B MAYOWORTH C MAKAALAE a MANLEY B MARKET D I MASSADONA 0 MAYGUEEN B MAKAH 8 MANLIUS C I MARKEY A101 MASSANETTA e I MAYSDORF 5 MAKALAPA D MANN 0;101 MARKHAM C I MASSANUTTEN e I MAYSPPINGS B MAKAPILI 5 MANNING 0 1 MARK LAKE D I MASSeACH 0 1 MAYTAG D MAKAWAO B MANOGUE D I MAPKLAND c I MASSENA C I MAYTOWN C MAKAWELI 8 MANOR 6 1 MARKLEPASS 0 1 MASSIE 0 1 MAYVILLE MAKENA 8 MANSELO 9 MAPKTON C I MASTERSON B I MAYWOOD MAKI C MANSFIELD D MARLA D MATA C I MAZARN C MAKIKI B MANSKI C 11 P.ArLAKE. D MATAGORDA D MAZASKA C/o MAKLAK A MANS ER B MARLPOP B MATAMOROS C MAZDALE B MAKOTI 8 MANSONIA B MARLEAN B MATANUSKA 8 MAZOURKA C MAL C MANTACHIE C MARLETTE B MATANZAS L MAZUMA 5 VAAL A 8 MANTECA C MAFLOW C MATAPEAKE 8 MC CURT 8 MALABAR B/D1 MANTED C/D1 MARLTON C I MATAWAN C MCAFEE C MALABA%, 0 MANTEP 0 1 MARMARTH, B I MATCHER A C ALLE N B DEPRES ONAL MANTON 0 1 PARMARTH COOL C I MATFIELD C MMCALLISTER C MALABAR. D MANU C I MARNA C/D1 MATGO D MCALPIN C FREQUENTLY MANVEL 0 1 MAROSA 8 1 MATHENY 8 MCBEE C FLOODED MANVEL. SALINE C I MAPOYZ C I MATHEPS 0 MCBETH D MALABON C MANZANAR C MAPPA C I MATHEPTON 8 MCBETH. SALINE C MALACHY 8 MANZANTTA c MAPPLEEN D I MATHESON 0 MC5EYH. DRAINED C MALAGA 8 MANZANITA. S MARQUETTE A MATHIAS B MCBIGGAM C MALAGA. STONY A GRAVELLY MARQUEZ C MATHIS C MCBRIDE 5 MALAMA A MANZANO B MARR L' MATHISTON C MCCAFFEPY A MALARGO B MANZANDLA C I MAPRIOTT e MATHON 0 MCCAIN C MALAYA 0 MAPLECMDUNTAIN B MARROWBONE C MATLACHA C MCCALEE b MALBIS 8 MAPLE REST 0 MARSDEN 6 MATNEPLAT 8 MCCALL e MALCOLM 8 1 MAPLEHILL C MARSEILLES B MATOY C I MCCALLY D MALDEN A MAPLETON C MARSELL B MATTAMUSKEET D I MCCAMMON C MALEZA 0 MAPLETON. STONY C/Dj MARSHALL B t MATTAN 0 1 MCCANN 8 MALHEUR C MARACK C I M ARS HAN 8/D1 MATTAPEX C I MCCAREY C MALIBU D MARAGUEZ 8 1 MAPSHBROOK D I MATTAPONI C MCCARRAN B MAL I N C MARANA 8 1 MARSHDALE D I MATUNUCK D MCCARTHY 8 MALJAMAR B MARATHON b MARSHDALE. DRAINED C I MAU C MCCASH B MALLORY C MARBLE A MARSHFIELD e/01 MAUBILA C MCCLAVE C MALM C MARBLECPEEK 0 MARSING e I MAUDE P MCCLEARY D MALMESA D MARBLEMOUNT. B MART B MAUDLIN 8 MCCLELLAN B HALO a MARBLEMOUNT C MARTEL D MAUGHAN C MCCLOUD C MALOTERPE D CHANNERY MARTELLA C MAUKEY C MCCLURE C MALOTT 6 MAPCAOO D MARTIN C MAUMEE A/Dj MCCOIN D MALOY 8 MAPCELINAS 0 MARTIN PE4A D MAUNABO 0 1 MCCOLL D MALPAIS B MARCELLON C MARTINECK D MAUPIN C I MCCOLLUM 8 MALSTPOM F3 MARCEITA 5 MARTINEZ 0 AUREPAS D I MCCONNEL 8 MALVERN C MARCIAL D MART INI B MMAUREPTOWN D I MCCONNEL, FLOODED A MAMALA D I MARCLAY 0 t MARTINSBURG e MAURICE B I MCCOOK 8 MAMOU C I MARCOLA C I MAPTINSDALE B MAURY C I MCCORNICK C MANAHAA C I MARCONI C I MARTINSON C MAUVAIS C I MCCORT B MANAHAWKIN D MARCOTT C I MARTINSVILLE e MAVCO C I McCoy C MANANA C MARCOU B 1 MAPTINTON C MAVERICK C I MCCREE 5 MANARD D MARCUM C I MARTIS E I MAVIF F/D1 MCCROPY 0 MANARD. GRAVELLY C MARCUS 6/01 MAPTISCO 8/01 MAWAE A I MCCROSKET 8 SUBSTRATUM MARCUSE 0 1 MARTY B I MAWER B I MCCULLOUGH B MANASSA C MARCY D I MARUMSCO C I MAX B I MCCULLY C MANASSAS 6 MAPD,1NU c/.j MA11VAN D I MAXCREEK 11/D: MCCUMBER B MANASTASH C MARE G C MARVELL 0 MAXEY C MCCUNE D MANATEE B/Di MARESUA 13 1 MARVIN C I MA%FIELD B/01 IKCCURDY C MANATEE, 0 1 MARGATE B/Lj MARVYN B I MAXTON V I MCCUTCHEN 0 DEPRESSIONAL I MARGERUM B I MARY C I MAXVILLE 6 1 MCDADE C MANATEE. FLOODED D I MARGIE C I MAPYSLAND B/Dj MAXWELL D I MCDANIEL B NOTES: TWO HYDROLOGIC SGIL GROUPS SUCH AS B/C INDICATES THE DRAINED/UNDRAINED SITUATION. MODIFIERS SHOWN, E.G.. BEDROCK SUBSTRATUM. REFER TO A SPECIFIC SOIL SERIES PHASE FOUND IN SOIL MAP LEGEND. (210-VI-TR-55, Second Ed., June 1986) A-25 Exhibit A-1, continued: Hydrologic soil groups for United States soils MCDEPMOTT B MECKLEN13UPG C HERDEN D MIKIM;PWETM C MINNEOSA MCDOLE e MECOSTA A MFPE 0 1 TH B SUBS ATU MINNEOUA C HCDONALD C MEDA E I MERETA C I MIKKALO C I MINNETONKA D MCDONALDSVILLE C"o, MEDANO D I MERGEL 6 1 MILACA C I MINNETONKA. SILTY C/o MCOUFF C EDAPY C MERIDIAN 8 11 FAILANRY 0 MSUBSTRATUM MCELMO C MEDBURN a MEP NO r M ILSU C INNEWAUKAN A/ MCELROY 6 EDCO D MEPKEL 6 1 MILBY 5 MINNIECE D MCEWEN 5 MMEDFORD 13 MEPLIN D I MILCAN C MINNIEPEAK A MCFADDEN B PEDFR A 0 MERMENTAU V I MILDRED C MINNIEPEAK. B MCFAIN C MEDICINE 8 1 MERMILL B/Of P. ILE S F OVERBLOWN, MCFARLANE) a I MEDLEY 6 1 MEFNA 8 1 MILFORD B/Dj GRAVELLY MCFAUL C MEDLIN D MFROS A MILHAM 5 1 MINNIEPEAK. MCGAFFEY a MEDOMAK D MERRICK a MILITARY B I OVERBLOWN MCGARR C MEDORA & MERRILL C MILL HOLLOW B I MINNIEVILLE 1c, MCGARVEY C MEDWAY e MEPRILLAN C MrLLADORE C I MINNIMAUD C MCGARY C MEEGERNOT & MERRIMAC A MILLARD 8 1 MINNITH C MCGEHEE C MEEGERO E MERRITT C MILLBORO D MINNYE B MCGILVERY D I MEEHAN B MERRITT. CLAYEY 0 MILLBROOK a MINOA C MCGINNIS C MEEKS S SUBSTRATUM. I MILLBURNE 8 MINOCQUA 8 -MCG IN TY R MEETEETSE D DRA I NED I MILLER D MINTER I MCGIRK C MECALOGS U MERRITT, GRAINED 0 M.ILLERLAKE B MINTO C MCGTPK. LOW D MEGGE7T D MERSHON C MILLERLUX D MINV D PRECIPITATION MECONOT C ME-PTON L MILLERTON 0 1 MINVALE MCGOWAN 6 1 P.EGU 1 -4 6 WERT Z C MILLEPVILLE A/Dj MINVENO D 8 i MEHLHORN C MEFWIN A/Dj MILLETT 6 1 MINWELLS C MCGRATH I MCGREW 8 MEIKLE D MESA S MILLGPOVE B/Dj M I ON 0 MCGUFFEY D MEISS 0 WESAEA C MILLHEIM C MIPPON C MCGUIRE 0 FEKINOCK D MESCAL C MILLHI D MIRASAL C MCHENRY U VELAKWA C MESCALERO C MILLHOPPER A MIRACLE C MCILWAINE 0 MELAND C MFSEI D MILLICH D MIRAGE C MCINTOSH 6 1 MELBOURNE 8 MESPUN A MILLICOMA C MIRAMAR 8 MCINTYRE 13 MELPY 8 MESSER C WILLIGAN C MIRAND D MCIVEY C @!ELD C MET 8 WILLING D MIRANDA D 14CKAMIE D I MELDEP 6 1 METAMORA 8 MILLINGTON B/Dj MIRES A MCKAY C I MELGA D I METCALF D MILLIS C I MIRES, STONY a HCKEE D V ELHOM E S 1) PETEA 8 MILLPAW C I MIRKWOOD 6 MCK@ETH 5 MELITA A METH C MILLPOT 8 1 MIRROR C MCKELVIF A VELLENTHIN 0 METIGOSHE B MILLRACE 8 1 MIRROR LAKE A t@CKENNA D MELLOR D M@TOL IUS 6 MILLPOCK A I MISAD a MCKENNA, DRAINED C MELLOR, STPATIFIEC C VETPE D MILLSAP D I MISENHEIMEP C MCKENZIE D SUBSTRATUM METZ B MILLSOALE B/Dj MrSHAK 8 MELLOTT 6 MEXICO D MILLSHOLM D I MISHAK. DRA: MCKINLEY [NED C MCKINNEY C MELOCHE D W.EXISPRING D I MILLSITE B MISSION D MCKNIGHT B MELOLAND C F@YSTRF F I WILLVILLE S MISSISQUOI A MCLAIN C PELPOSE C MHOON D MILLWOOD 0 MISSLEP a MCLAURIN B MELTON D MIAMI e MILNER B MISSOULA 0 4CLEOD 8 MELVILLE a MIA-IAN C MILOK 8 MITCH 6 MCLOUGHLIN B MELVIN D MICANOPY C MILPITAS C MITCH. RARELY C WCMFEN C MEMALOOSE C PICC(i S/01 PILREN C FLOODED HCMILLE B MEMPHIS E MICHELSON 8 MILTON C MITCHELL a MCMULLIN D I MENAHGA A I MICHIGAMME C MILVAR C MITTWANGA C MCMURDIE C I MENARD 8 f, ICK FY 1) PIMBRES P MITKOF D MCMURRAY D I MENASHA n WIcRoY C MIMOSA C MITKOF. MODERATELY C MCMURRAY, GRAINED C I MENBO C MIDAS c MINA 5 WET MCNARY D I MENCEBOURE C m loco A MIN4LOOSA 13 1 MITRE C MCNEAL F. M@NDELTNA D MIDDLE C MINAM 0 1 M I TP I NG C HCNULL C MENDELTNA . 8 MIDDLEBURY 6 VINAT 8 1 MITTEN MCNULTY 8 LACUSTPINE MIDDLEMA;?CH 8 MINATARE 0 MIVIDA 8 B MINCHEY 8 MIZEL 0 MCPAUL B SUBSTRATUM MIDDLETOWN mCPHIE B I MENDENHALL 0 MIDDLEWOO') D M.INCHUMINA D MnAB B MCQUAPRIE D MENDI 8 WIDELIGHT e MINCO B MOAG 0 MCOUEEN C PENDOCINO E MIDESSA 8 MINDEGO C MOANO D MCRAE 8 MENDON e MILFORK C MINDEN 8 MOAPA C MCRAVEN C MENDOTA B M. I DL AND D MINE 8 WOAULA A mCTAGGART 8 MENEFEE D MIDMONT c MINEOLA A MOBATE D P4CVEGAS D MENFRO 8 MIDNIGHT D HINER D MOOEETIE B 4CVICKERS C I MEN1.0 0 MIDO A MINERAL C MOBERG 6 MEAD 0 MEI-10 C MIDRAW V I MINERAL MOUNTAIN C MOBL MEADIN A MENOKEN C MIDVALE C I MINERSVILLE B MOSPIDGE 8 HEADLAND C MENOMINEE A I MIDWAY 0 MINESINGER C MOCA D MEADOWBROOK B/D1 MENTO C I MIERHILL C MINETA C MOCAREY D" MEADOWCREEK C I MENTOR 6 MIERUF 0 MINGO C MOCHO B MEADOWLAKE C I MENZEL & MIESEN C MINGUS D. MOCKLEP a -EADOWVILLE. B MEQUON C MIFFLIN 6 MINIOOKA C MOCMONT MEANS C MEP ROUGE E MIGEP.N 8 MINKLER D I MOCTILEME C D MEQCED 0 MIGUEL D MINLITH D I 'MODA D MEARES -ECAN P I MFRCEDES 0 1 MIKE D f MINNEHA C I MODALE C HECHANI ICSOUPG C ME'ICER C I MIKESELL C MINNEISKA e MODENA a MECKESVILLE C kERCEY C t MIKIM a MINNEOPA 8 MODESTO C NOTES: TWO HYDROLOGIC SOIL GROUPS SUCH AS L/C INDICATES T-4E DRAINED/UNDRAINED SITUATION. MODIFIERS SHOWN, E.G 9EDROCK SUBSTRAIUM. REFER TO A SPECIFIC SOIL SERIES PHASE FOUND IN SOIL MAP LEGEND. A-26 (210-VI-TR-55, Second Ed., June 1986) Exhibit A-1, continued: Hydrologic soil groups for United States soils ODJESKA a MONTCALm A MORTENSON, C MU;R F, MYOMA, WET 8 MODKIN C MONTE 6 MORTENSON COBBLY D MU RKIRK F MYRA C MODOC C MONTE CRISTO D I MORTON 8 MUKTLTEO D MYRICK C m MODYON C MONTECITO 0 MOPVAL 0 I'MUKILTEO. DRAINED C I MYRTLE B MOE B MONTEGRANDE D MOSBY C MULAT D MYSTEN A MOEN C MONTELL, D MOSCAW 8 MULDOON 6 MYSTICU C MOENKOPIE D MONTELL C MOSCO C MULDPOW D NAALEH a MOEPITZ B MONTEOCHA D MOSEL C MULETT 0 NAALEHU. BEDROCK C MOFFAT B MONTEOLA 0 MCSES 8 MULGON 0 SUBSTRATUM MOGG 0 MONTEROSA 0 MOSES. BOULDERY C MULHALL 6 NA8ESNA D MOGLIA C MONTESA C MOSHANNON B I MULHOLLAND 8 NACHES e MOGGOLLON B MONTEVALLO 0 MOSHEIM D MULHOP D NACHUSA 8 MOGOTE C MONTEZ 5 MOSHER D MULKEY C NACIMIENTO C MOHALL B MONTGOMERY 1) MOSHEPVILLE C MULLICA C NACLINA MOHAVE B MONTICELLO B MOSHUP C MULLIG e NACOGDOCHES a MOHAWK 6 MONTIETH 6 MCSIDA B MULLINS D NADA D MO"OCIEI C MONTLID C MOSINEE", 8 MULLYON V NADEAU 0 MOIESE B P-ONTMORENCI B POSLAND 1) MULSHOE C NADINA D MOINES C MONTNEVA C MOSMAN D MULSTAY C NADPA 0 MOINGONA 8 MONTOSO 0 MOSO P. VULT C NAEGELIN 0 MOJO C MONTOUR D MOSQUET D MULTEY 8 NAFF 8 MOKELUMNE D MONTOYA D MOSROC D MULTNOMAH B NAGITSY C MOKENA C MONTPELLIER C MCSSYROCK 8 It MULTORPOR A NAGLEM 3 MOKIAK 8 MONTAOSS C MOSWFLL 0 MUNDAL C NAGPO C MOKINS D MONTVALE D MOTA e MUNDELEIN 8 NAHA C MOKO D MONTVERDE B/Dj MOTEN C MUNDEN e NAHATCHE C MOKULEIA B MONTWEL C I MOTLEY B MUNDOS 0 NAHMA E/O MOLALLA 0 MONTWEL, ALKALI 0 1 MOTOOUA D MUNDT C NAHON D 140LAND 5 MONUE 8 MOTT 8 MUNI D NAHRUB D MOLAS D MONVERO A MOTTLAND 8 MUNISING 6 NAHUNTA C MOLCAL 0 MOODY B MOTTO 0 1 MUNJOP B I NAIWA .6 MOLENA A I MODHOO b MOTTSVILLE A I MUNK C NAKAI 6 MOLION 0 1 MOOLACK A MOULTON C MUNNELL 0 NAKAPNA 8 MOLLICY C MOONLIGHT 8 OULTRIE D MUNSET D NAKINA BID MOLLMAN B MOONSHINE D MMOUND C MUNSON D NAKNEK 0 MOLLVILLE D MOONSTONE C MOUNDHAVEN A I MUNUSCONG B/D1 NAKOCHNA D MOLLY 8 MCONVILLE 6 MOUNDPRAIRIE B/01 MURAD 8 1 NALAKI C MOLOKAI 8 MOOPEVILLE C MOUNDPRAIRIE. D I MURANCH C NALOO U MOLSON 5 MOOSE RIVER 0 PONDED MURDO 8 NALL 0 MOLYNEUX 6 MOOSE 0 C MOUNDVILLE A MURDOCK C NAMBE R MOMOLI B MOOSELAKE AID! MOUNT HOME 0 MUREN 8 NAMELA C MONA B MOOSHAUNEE C I MOUNT LUCAS C MURNEN B NAMEOKI D MONACAN C MOOSILAUKE C MOUNTADAMS B MUROC D NAMON a MONACHE 8 MOPANA 0 MOUNTAINBOY 0 MUOPHY C NAMUR D MONAO 8 MOPANG B MOUNIAINBURG D MUPRIETA D NANAMKIN A MONADNOCK 6 MOOUAH 6 MOUNTAINEER C MURRILL 5 NANCY 5 MONAHANS S MORA C MOUNTAINVIEW C MURTIP 8 NANIAK D MONARDA D MORADO C MOUNTAINVILLE 8 1 MURVILLE A/D1 NANKIN C MONASTERIO C MORALES 0 1 MOUNTMED D MUSCATINE 0 1 NANNY a MONAVILLE B MORAN e POUNIKED.. C MUSE C NANNYTON 0 MONBUTTE C MORANCH 6 MHODERATELY WET B MUSELLA B NANSEMOND C MONCHA a MORAPOS C OUNYVIEW MUSICK 6 f NANSENE 0 MONDAMIN C MORO C MOUZON D MUSINIA 5 1 NANSEPSEP C MONDEY C MOREAU D MOVILLE C I MUSKEGO A/D1 NANSUS D MONDOVI 0 MOREHEAD C MOWATA 0 1 MUSKEGO. MARSHY D I NANTAHALA B MONEE D MOREHOUSE 0 VOWE5A B I MUSKEGO, CLAY LOAM D I NANTUCKET C ONGAUP C MORELAND D MOWEr' C SUBSTRATUM NANUM 0 MONICO C MORENO C MOWICH D MUSKELLUNGE 0 NAPA D MONIDA C MORET D MOXEE D MUSKINGUM C NAPIER 5 M MONIERCO D MOREY D k.OYERS C MUSKOGEE C NAPLENE 8 MONITEAV C/D1 MORFITT 0 MOYERSON D VVSOFARE C NAPOLEON AID MONITOR C MORGALA C MCYINA D MUSQUIZ C NAPPANEE 0 EAU 0 MORGANFIELD 5 MT: AT RY A USSEL B NAPTOWNE B MONOCLINE C MORIARTY 0 PT CARROLL 0 MMUSSELSHELL 8 NARANJITO C MONOGRAM B MORICAL C MT. HOOD 0 MUSSERHILL C I NARANJO C MONJ MONONA 5 MORLEY C MT, OLIVE C I MUSSEY B/D1 NARCISSE C MONONGAHELA C MORLING D WT. VERNON C MUSTANG A/Dj NARCOOSSEE C MONROE a MORMON MESA D MUCARA 0 MUTNALA 8 NARD 8 MONROE yILLE C/Dj MOROCCO 8 1 MUCKALEE 0 MUZZLER 0 NAREL B MONSE B MORON] 0 1 MUD SPRINGS C MYAKKA B/01 NARGAR B MON3ERATE C MOROP C I MUDCO D MYAKKA, D I NARK C MONSERATE, THIN 0 MORPH B/D1 MUDLAVIA 8 DEPRESSIONAL NARLON D SURFACE MORRILL. 9 MUDRAY D MYAKKA. TIDAL D NARNETT 5 MONSON C/Dj MORR IS C MU"- C MYATT D NARON GANSETT B MONTAGUE D MORRISON a MUFF C MYERS D NARRA B MONTALTO C MORRISTOWN C MUG D MYERSVILLE 5 NARRAGUINNEP D MONTARA D MORROW C MUGGINS C MYFORD D NARROWS D MONTAUK C MORSE D MUGHOUSE C MYLREA C NARTA D MONTBORNE C MORSET B MUGHUT C MYOMA A NARU NOTES: TWO HYDROLOGIC SOIL GROUPS SUCH AS 6/C INDICATES THE DRAINED/UNDRAINED SITUATION. MODIFIERS SHOWN, E.G.. BEDROCK SUBSTRATUM. REFER TO A SPECIFIC SOIL SERIES PHASE FOUND IN SOIL MAP LEGEND. (210-VI-TR-55, Second Ed., June 1986) A-27 Exhibit A-1, continued: Hydrologic soil groups for United States soils 14ASER 8 NEHALEK, FLOODED C NEWALBIN, MUCK 0 NIKAL 6 NOONAN D NASH I NEHAR 8 N SLOES TPA T UMON N@IKE Y 8 NDPAH C NASHMEAD 3 NEHAR. STONY C EWALBIN. P N KFUL P NORA 8 NASHOBA C NEIBER C NEWALLA D NIKISHKA 8 NORAD 6 NASHVILLE B NFICE B NEW A PON A C NIKLASON 8 NORBERT D NASHWAUK C NEILTON A NEWARK C NIKOLAI 0 NORSORNE a NASKEAG C NEISSENBERG C NEWARK, PONDFD D NILAND C NORCAN C NASON C NEK I A C NEWA RK , P-)NDED. 1; NILER r NORD 6 NASON. GRAVELLY D NEKKEN 6 COOL NILRAP 6 NOPDBY 8 NASS D NEKOMA 5 OEWAUKUM 6 N '0 8 NORDFN 8 E "'Br NASSAU C NFLOOP D NEWAYGO e NIMERICK C NOQDIC 13 NASSET 6 NELLA B NEWBELL 5 NIMMO 0 NORDICOL B NATAGA A I NELLIS 8 1 NEWBEPG 8 1 NIMROD C I NORDNESS 8 NATAL D I NELMAN C NEWBERG. WET C I NIMS C I NORFOLK B NATANK C NELSCOTT C NEWeFPN C I NIMUE 6 NORFORK D NATCHEZ B NELSE 8 NEWBERRY C NINCH 6 NORGE a NATCHITOCHES D NELSON C NEWBON V NINEKAR D NORGO D NATHALE C NEHADJI E NEWCO 0 NINEMILE D NORKA B NATHROP C NEHAH D NEWCOMB A NINEPIPE R NORKOOL e NATHROP. NONSTONY B I NEMAH. DRAINED C NEWDALE 6 NINEVEH 8 NORLAND B NATHROP. COBBLY B NEMICO D NEWELL 6 NINIGPET B 14ORMA D NATI C NEMOTE A NEVELLTON D NICBELL C NORMA. DRAINED C NATIONAL 9 NEMOURS C NEWFIELDS 8 NIOTA D NORMANGEE D NATKIM a NENANA B NEWFLAT D NIOTAZE C NORMANIA e NATOMAS B NENNO C NFWFOPK C NIPE 8 NOROB C NATROY D NEOLA D NEWFOUND C NIPINTUCK D NORPEST C NATUPITA 8 NEOTOMA 6 NEWGLARUS E NIPPT 8 NORPIS D NAUKATT D NEPALTO A NEWHAN A NIPSUM C NOPRTSTON A NAUMBURG C NEPESTA B NEWHOUSE B NIPA B NORTE C NAUVOO B NEPHI C NEWKIPK D I NIPAC C NORTFZ C NAVACA 0 NEP04SET C NEWLANDS E I NIRE C NORTH POWDER C NAVAJO D NEPPEL P, NEWLANDS, OARM C I NISENE B I NOPTHBCRO C NAVAN 1) NEPTUN@ A NEWL IN 6 1 NISHNA C/01 NOPTHCASTLE b NAVASAN A NEPESON 8 NEWNAN C I NISHNA, PONDED D I NOPTHCOTE C/D NAVIDAD 5 NESBITT P NEWNATA C NISHON D NOPTHDALE C NAVINA B NESDA E NEWPASS C NISQUALLY A NORTHFIELD D NAVO 0 NESHAMINY B NEWPORT C NISULA P NOPTHMORE C NAWNFY 0 NESH08A C NEWRY B NITCHLY B NOPTHRUP C NAWT D NESIKA 6 NEWSKAH OF N I TT AW' D NORTHSTAR C NAXING 8 NESIUS A NEWSON A/D NIU 8 NOPTHWATER B NAVE C NESKAHI B NEWSPOCK 6 1`1 IUL I I C NORTHWOOD B/D NAYPEO 6 NESKOWIN C NEWSTEAD C NIWANA e NOR. TON C NAYRIF D NESO D I NEWTON AIDI NIW0T C I NORTONVILLE C NAZ B NESPELEM C NEWTCNIA 8 1 NIX D I NORWELL C NAZATON 8 NESS D NEWTOWN C NIXA C NORWICH 0 NEAUSCO C NESSEL 0 NEWULM 8 NIXON 6 NORWOOD e NELIAGO C NESTER C NEWVIENNA B SIXONTON a NOSRAC B NEBEKEP C I NE57DRIA C/bl NEWVILLE 0 1 NIZINA A NOTAL D NEBGFN D NESTUCCA D NEYGAT 0 1 NOAPK 5 NOTCHER B NEBISH 8 NET C NEZ PERCE C N08E D NOTI D NEaONA D NETARTS 8 NGARDMAU e NOBLE 8 NOTNED 13 NECANICUM 5 NETCONG 8 NGAPrOK 6 NOBLETON C NOTSPIER D NECESSITY C NETO B NGATPANG C NOBOCC e NOTTAWA 8 NECHE C NETOMA NCEDEBUS A NOBSCOT A NOTTER 0 NECONDA C NETPAC A NGERFUUL C, NOBUCK C NOTUS C NECTAR C NETTLES 0 NGEPVNGOP 0 NOCKEN C NOTUS. DRAINED a NEDA C NETTLETON C NIAGARA C NODAWAY 8 NOUQUE D NEDERLAND B NFUSERT 6 NIAPADA a NODEN B NOVACAN D NEEDLE D NEUNS C NIAPT E NVDINE B NOVARK B NEEDLE PEAK C NEUPALIA C NIeBS P NOELKE D NOVAPY D NEEDLE PEAK, LOAMY 8 NEUQALIA. SANDY 6 N IBL E Y C NOG A L C NOVATO 0 SUBSTRATUM SUBSTRATUM NIBSCN C NCHILI D NOVINA e NEEDLE PEAK, 9 NFUSKE B NICANOP D NOK AS I PP I B/Dj NOWATA B OCCASIONALLY NEVADANILE C NICHOLFLAT C NOKAY C NOWEN B/O FLOODED NEV&DCR 9 NICHOLIA 0 NOKHU C NOWOY 8 NEEDLETON 8 NEVAPC C NICHOLS P NOLAM 8 NOYEP P NEEDLEYE C NEVAT e NICHOLS04 C NOLICHUCKY e NO Y E S C/D NEEDMOPE C NEVEE 6 NICHGLVILLE C NOLIN 8 NOYO C NEELEY 8 NFVEPSINK D NICKEL 8 VOL 0 D NOYSON C NE EN C NEVILLE 8 NICKIN e POLTEN C NUAHS 6 NEEN. WET D NEVILLE. WET C NICKSVILLE C POMAPA C NUBY D NEEN, DRAINED B NEVIN 8 NICODEMUS 8 NOME 0 NUSY. DRAINED C NEENAH C NEVINE 8 NICODEMUS. FLOODED C NOMIE 8 NUBY. PROTECTED C NEER 6 NEYKA C NICOLAS A NONDALTON B NUC C NEESES C NEVOYER r NICOLLET B NONOPAHU D NUCKOLLS 8 NEESOPAH I) NEVTAH C N IVID C NONPAREIL D NUCLA 0 NEFF C NEVU C NIELSEN 0 NOOK C NUECES C NEGLEY 8 NEW CAM13PIA C NIGHTHAWK e NOCKACHAMPS 0 NUEVA a NEHALEM 3 NEWALB I N e/Dj NIHILL F I NOOKSACK C I NUFF NOTES: TWO HYDROLOGIC SOIL GROUPS SUCH AS B/C INDICATES TAE DPATNED/UNDRATNED SITUATION. MODIFIERS SHOWN, E.G., BEDROCK SUBSTRATUM, REFER TO A SPECIFIC SOIL SERIES PHASE FOUND IN SOIL MAP LEGEND. A-28 (210-VI-TR-55, Second Ed., June 1986) Exhibit A-19 continued: Hydrologic soil groups for United States soils NUGENT 4 OCOZALUFTEE OLD CA MP D OPENLAKE D OSAKIS 6 NUKRUM D : OCO EE cc : OLDENBURG e OPEQUON C OSBORN. C NULEY 8 1 OCONTO 8 1 OLDHAM C/01 OPHIR C OSBORN MODERATELY D NULLIGAM 9 1 OCOSTA o I OLDS D I OPINIKAO D WET NUMA a I OCQUEOC A I OLDSFERRY C I ORLIN C OSCAR D NUNDA C I OCQUEDC, 13 1 OLDSMAR BID OPPIO D OSCURA C NUNEMAKER D I MODERATELY WET I OLDSMAR. D OPPIO. STON Y C I OSGOOD C NUNICA C OCRAIG 0 DEPRESSIONAL OOUAGA C OSHA a NUNN C OCTAGON B OLELb 5 COUIN C OSHAWA D NUNN, MODERATELY 8 OCTAVIA B OLENO 0 ORA C OSHKOSH C WET ODAS D I OLENTANGY A/Dj ORACLE 0 1 OSHONE 0 NUNNSTON C ODELL 0 1 OLEOUA 0 1 OPAGRAN D OSHTEMO 8 NUPART D OOEM A CLETE C I ORAID C OSIER AID .UPPER D ODENSON D OLEX e ORAN B OSITO C NURKEY B I ODERMOTT C OLF D ORANGE 0 OSKA C NUSS D ODERMOTT-STONY 8 OLGA C ORANGEBURG B OSMUND a NVTALL D ODESSA D OLI B CRANGEVALE 8 OSO C NUTIVOLI A ODIN C OLIAGA C ORCAP C OSOBB D NUTLEY C DONE D CLICAL 0 ORCAS D OSOLL 0 NUTRAS C ODO 0 OLIN B ORCHARD B OSORIDGE D NUTRIOSO 0 ODONNELL C I OLINDA e ORCKY B OSOTE 0 NUVALDE 8 OELOP B OLIPHANT 0 ORD B OSSIAN BID NUYOBE C DEST 8 OLIVENHAIN D ORDNA D OSSIPEE 0 NYALA 8 OESTERL E C OLIVIFR C ORDNANCE C DST 8 NYE B OFFENBACHER C OLJETO A ORDWAY 0 OSTLER C NYJACK C I OFU B OLLEI D OPEANA 6 OSTRANDER (J. NYMORE A I OGARTY C OLLIERIVAS D OREANNA 5 OSWALD D NYSERVA 8 1 OGEECHEE H/Dj OLMITO D I OREJAS V I OTANYA B NYSSA C I OGEMAW C/Dj OLMITZ 5 1 ORELIA D I OTEEN C NYSSATON 8 OGILVIE B/Dj OLMOS C I ORELLA D I OTERO 6 NYSWONGER D OGLALA B I OLMSTED e/Dj OPENDA 8 1 OTHELLO C/o O'BRIEN 8 OGLE 6 1 OLNES 0 1 ORENEVA C I OTISCO A O'NEILL 8 OGLESBY D OLNEY B I ORFORD B I OTISVILLE A OAHE B OGRAL B OLOAVA B I OPHOOD D OTLEY 6 OAK GLEN 8 OHACO C OLOKUI G I ORICTO 0 OTOMO 0 OAK GROVE 11 OHANA C OLOMOUNT C I OPIDIA 0 OtOOLE C OAKALLA 0 CHIA A OLOMPALI D ORIF A OTTER BID OAKBORO C OHOP C CLOT C ORTGO B OTTERHOLT 8 OAKDALE 8 CHSCOW B OLOTANIA V ORINOCO C OTTERSON A CAKDEN D OIDEM A OLPE C ORIC 8/01 OTTMAR 8 OAKES 11 OJ@TA D OLSON D OFION C I OTTOKEE A DAKWILL B OJIBWAY C OLTON C ORITA 0 1 OTTOSEN a OAKHURST D QJITO C I OLUSTEE B/Dj OPIZABA C I OTTUMWA D OAKLAND C I OJITOS B I CLYIC B ORIZABA. DRAINED B I OTWAY D OAKLET C I OKANOGAN 8 OLYMPIC B ORLA 8 1 OTWELL C OAKLIMETER C I OKATON D OMADI 0 ORLAND B I OTWIN C OAKVILLE 'A OKAW 0 OMAK C ORLANDO A OUACHITA C OAKWOOD 8 OKAY B OMEGA A ORLIE C OUARD 0 OANAPUKA 8 OKEE 8 OMENA 8 ORMAS S DULA D OASIS 8 OKEECHOBEE B/D1 OMIO e I OPMISTON C I OUPICO C OATLANDS 8 1 OKEELANTA SIDI OMNI D I ORMSBY C OURAY 6 OATMAN B I OKEFLANTA. D I OMPO C I OPNBAUN 8 OUSLEY C DATUU D ODEPRESSIONAL . OMSTOTT C ORO FRIN 0 0 CUTERKIRK a OBAN C KEELANTA. TIDAL OMULGA C ORD G ANDE 0 OUTLET C OBAN70N C OKEELANTA. FLOODED D DNA 6/01 OPOGNEN D I OUTLOOK D OBARO 6 OKEETEE D ONAMIA B I OPONOCO 6 1 OUTLOOK, DRAINED C OBEN C OKEMAH C ONAOUI D- I OPOSE C OVALL C OBISPO D OKIDTA D ONARGA 0 OROVADA E OVAN D OSPAST D OKL ARE D D ONASON I, OPPARK C OVANDO A OBRAY D CKLARK 0 ONAWA D OPPHA A OVERGAARD C OBSCURITY 8 OKLAWAHA B/Dj ONAWAY e I OPPHANT D I OVERLAND C OBSERVATION C OKO 0 ONDAWA 8 1 ORR B I OVERLY C OBURN D I OKO. STONY C ONECO 6 1 ORR. GRAVELLY C OVERTON D OCALA C K..011 B/Dj ONEIL C I SUBSTRATUM CVIATT a OCAMBEE C OKOBOJ 1. P.ND1. D ONEONTA 8 OPRue D OVID C OCANA 6 OKOLONA D I ONITA C OPPVILLE C OVINA 8 OCCOOU N B 0 REEK D I N1TE 6 0 SA A OWANKA C OCCUM B OKAIST B I ONKEYO D OPSET 0 1 OWEGO D OCEANET D CKTAHA 8 1 ONOTA 5 ORSINO A OWEN CREEK C OCEAND A OKTIBBEHA D I ONSLOW 8 ORTEGA A OWENS 0 OCHEYEDAN 8 OLA C I ONTAPIO B ORTELLO 6 OWENTOWN B OCHLOCKONEE B OLAA A ONTEDRA C OPTING D OWHI B OCHD D OLAC D ONTKO D ORTIZ C OWINZA D OCHOCO C OLANCHA B ONTONAGON D ORTON B OWLCAN 6 OCHOPEE 11,101 OLAND B ONYX 0 ORWASH A/ v 6 OCIE C I OLANTA B OOKALA A ORWET A DWOSSO 61 OCILLA C I CLASHES a OoSEN A ORWIG B OWYHEE 8 OCKLEY 0 1 OLATHE 0 OPAL D OPWOOE) B OXBOW C OCOEE B/Dj CLOUT 0 1 OPELIKA D OSAGE D OXCOREL D NOTES: TWO HYDROLOGIC SOIL GROUPS SUCH AS BIC INDICATES THE DRAINED/UNDRAINED SITUATION. MODIFIERS SHOWN. E.G., BEDROCK SUBSTRATUM. REFER TO A SPECIFIC SOIL SERIES PHASE FOUND IN SOIL MAP LEGEND. (210-VI-TR-55, Second Ed., June 1986) A-29 Exhibit A-1, continued: Hydrologic soil groups for United States soils OXENDINE D I PALIX C PAPALOTE C I PATIO C I PELEE OXEQI UE C PALL S C PAPINEAU C PATIT CREEK 8 1 PELELIU D OX-OQD D PALM BEACH A PAPOOSE I, PATNA 8 1 PELHAM B/D OXHEAD 8 PALMA B PAPA 8 1 PATOS C RELIC D OXLEY C P ALMA A I, PARACHUTE 8 PATOUTYILLE C PELION B/D OXWALL D PALMAR C PARACTSE C PATRICIA 8 PELKIE A OYHUT C PAL"EP.CANYON E PAPAODX Ell PATRICK 5 PELLA'A, 8 OYLEN C PAL14ER ALE 8 PARANAT C PATROLE C PELLE 8 OZAMIS D P ALME T TO B/Dj PARANAT, DRAINED. B PATTANI D PELLICER D OZAN D PALMETTO. 0 1 SALINE PATTEE 8 1 PELONCILLO D OZAUKEE C DEPRESSIONAL I PARASOL 5 1 PATTENSURG 8 1 PELTIER C OZETTE C PALWICH B I PAPCELAS I' I PATTER 6 PEMBERTON 8 CZIAS 0 PALMS. OVERWASH A/Dj PARCHIN I) I PATTEPSON C PEMBROKE 8 PAAIKI 9 PALMS. MAAT>50 AID1 PAPCPIN. COOL C I PATTON e/Dj PEMENE 6 PAALOA 8 PALMS, MAAT<50 A/Dj PAPDALOE 0 1 PAUL e I PEMI C PAAUHAU A PALPS. PONDED 0 1 PAPDFE D PAULDING D PENA 8 PABLO D PALMS. SANDY A101 PAPDEEVILLE E' PAULINA D PENAPON 8 PACHAPPA B SUBSTRATUM I PAREHAT C PAULSON 8 PENASCO D PACHECO C I PALMS. GRAVELLY A/Dj PARENT 2/01 PAULVILLE 8 1 PENCE 8 PACHECD, DRAINED B SUBSTRATUM I PAPIATO D I PAUMALU B I PEND OREILLE 8 PACIFICO C PALMYRA B PARIETTE C I PAUNSAUGUNT D I PENDANT 0 PACK C PALO D PARISA C I PAUSANT a PENDARVIS C PACKARD 3 PALODUPO 6 PARISIAN 0 1 PAUWELA 8 PENDEN 8 PACKER 6 PALOMAPIN El PARKALLEY 0 1 PAVAIAI C PENDEP C PACKHAM 6 PALOMAS 6 PARKAY F I PAVANT 0 1 PENDERGRASS 0 PACKTRAIL C PALOMINO D PARKDALE P I PAVER 6 1 PENDLETON C PACKWOOC D PALON D PARKE 6 1 PAVILLION V I PENDPOY D PACO C PALOPINTO D I PARKER 6 PAVO B PENELAS 0 PACOLET 9 PALOS VERDES 0 1 PAPKFIELD C PAVOHPOO e PENEY D PACTOLA B PALOUSE L, I PARKHILL B/Vj PAWCATUCK D I PENGILLY a D PACTOLUS A PALSGROVE B I PAPKINSON & I PAWHUSKA D PENGPA C PADDOCK C/D1 PALUXY 6 1 PARKS e PAWLING P PENINSULA 5 PADFN C I PAMISON 6 PARKVIEW 8 PAWNEE D PENISTAJA 8 PADILLA C PAMLICO D PARKVILLE C PAXICO 8 PENITENTE 8 PADINA a PAMOA b I PAPKWOOD F/Dj PAXTON C I PENLAW C PADRES 8 PAMSDEL C I PARLEYS R I PAXVILLE B/Dj PENN C PADRONES 6 PAMUNKEY F- PARLIN C I PAYETTE 8 1 PENNEKAMP PADUCAH B PANA P PARLC, 8 1 PAYMASTER 6 1 PENNELL D PADUS 5 PANAEWA D PARMELE C I PAYNE C I PENNEY A PAFSL B PANAK 8 1 PARMELOW C I PAYNECREEK 8 1 PENNICHUCK a PAGARI 9 PANAMA 5 1 PARMENTER B j PAYSON 0 1 PENNSUCC 0 PAGEBROOK D I PANAMINT B I PAPMLFED C I PEACHAM 0 1 PEND C PAGINA C I PANASOFFKEE C/01 PARNELL C/D1 PEACHLAND D I PENOYER 8 PAGODA C I PANCHERI 6 1 PAPCUAT E PEARL 8 1 PENROSE D PAGOSA C PANDO 6 PARR 8 PEARL HARBOR D I PENSORE D PAGUATE C PANDOAH C PARRAN D PEAPSOLL 0 1 PENTHOUSE 0 DAHAKA 6 1 PANDORA B/Dj PARRISH C I PEASLEY 0 1 PENTZ 0 PAHOKEE B/Dj PANDUPA D PARRITA L, I PEASPEAR D I PENWELL A PAHRANAGAT C I PANE F. PARSHALL 0 1 PEAVINE C I PENWOOD A PAHRANAGAT. VERY D I PANGBORN D PARSIPPANY C/01 PEAWICK 0 1 PENZANCE C POORLY DRAINED I PANGUITCH B PARSONS 1) 1 PEeSLEPOINT C PEOGA C PAHRANGE C I PANHANDLE b I PARTLOW () I PECA70NICA P PEOH D PAHREAH C I PANHILL B I PAF;TCV D I PECKHAM C. PEOH. DRAINED C PAHROC D PANIN a I PAPTPI C I PECKISH D PEOLA C PAHRUMP C PANIOGUE 6 1 PARTRIDGE A I PECOS E) PEONE 0 PAHSIMEPOI B PANIOGUE. WET C I PASAGSHAK D I PECTURE e PEONE. DRAINED C PAIA e PANITCHEN 6 1 PASCO C I PEDCAT D PEORIA D PAICF D PANKY C I PASCO. DRAINED C I PEDEE C PEOTONE 8/0 PAILO B PANMOD C I PASO SECO D I PEDERNALES C PEPAL 8 PAINESVILLE C PANOCHE B I PASOOETTI D I PEDIGO C PEPOON D P A 1.14 T D PANOCHE. C PASOUETTI. C I PEDLEFORD C PEPPER D PAISLEY D SALINE-ALKALI, MODERATELY WET PEDOLI e PEPTON D PAIT a WE T PASQUETTI. DRAINED C PEDPICK 6 PEOUAMING A PAJARA C PANOLA r, PASQUOTANK B/01 PEDRO C I PEDUEA 5 PAJAPITO 0 PANOR e PASS CANYON D I PEEBLES C I PEGUOP B PAJUELA B PANORAMA 8 1 PASSAR C I PEEKO D I PERALTA C PAKA 5 PANOZA e PASSCPEEK C PEEL C I PEPAZZO B PAKALA a PANSFY D PASTERN 0 PEELER 6 1 PEPCETON 5 PAKINI B PANTANO 1) PASTIK C PEERLESS 8 1 PERCHAS D PALACIOUS D I PANTEGO 0/D1 PASTCPIUS E PEETZ A PEPCILLA 0 PALAFOX C PANTERA 0 1 PASTU9A D I PEEVER C PERCIVAL C PALANUSH C PANTHER 0 1 PATAHA C I PEEVYWELL C I PEPCOUN C PALAPALAI 8 PANTON 0 1 PATCi-IN D PEGLEG C I PERCY e/D PALATINE 8 PAOLA A PATE C PEGLER 0 1 PERDIN C PALAU 6 PAOLI F. PATELZICK D PEGRAM 8 PERELLA 8/0 PALAZZO C P APAA D PATENT C PEKAY C PERELLA. B PALBOONE a PAPAC C PATHEAD C I PEKIN C MODERATELY WET PALINOP C PAPAGUA C PATILLAS 2 PELAHATCHIE C PERHAM B PALISADE a PAPAI A PATILO 8 PELAN 8 PEPICD 8 NOTES: TWO HYDROLOGIC SOIL GROUPS SUCH AS B/C INDICATES T4E DRAINED/UNDPAINED SITUATION. MODIFIERS SHOWN. E.G.. BEDROCK 5URSTRATUM. REFER TO A SPECIFIC SOIL SERIES PHASE FOUND IN SOIL MAP LEGEND. A-30 (210-VI-TR-55, Second Ed., June 1986) Exhibit A-1, continued: Hydrologic soil groups for United States soils PERIDGE 8 PH;LO 0 PINELLAS B/01 PLASKETT D POKEGEMA PER ILLA 0 PH LOMATH D P;NELLPI B PLATA 6 POKEMAN C PERINDS C PHING D P NETO C PLATEA C POKER C PER ITSA C PHIPPS C PINETUCKY S PLATNEP C POKERGAP B PERKINS C PHLISS D PINETUCKY, GRADED C PLATO C POKEY C PERKS A PHOEBE 8 PINEVAL B PLATORO 0 POLACCA C PERLA C PHOENIX D PINEVILLE 8 PLATTE 8 POLALLIE C PERLOR 0 PHYS 8 PINEZ E PLATTE. WET 0 POLAR B PERMA 0 PIANKESHA% 6 INGREE PLATTE CHANNELED D POLATIS C PERN 8 PIASA D PPINHOOK B PLATTV;LLE a POLAWANA A/D PERNITAS C PISLER D PINICON B PLAYCO B POLE D PERNOG D PICABO C PINITOS P PLAYER D POLECREEK D PERNTY D PICACHO C PINKEL C I PLAYMOOR C/D1 POLELINE 8 PEROUIMANS D PICANTE D PTNKHAM A PLAZA C POLEPATCH A PERREAU 8 PICAYUNE 6 PINKSTON 8 PLEASANT C POLEY C PERRIN B PICEANCE C PINNACLES C PLEASANT. PONDED 0 FOLEY. COBBLY D PERRINE D PICKAWAY C I PINNEBOG A/Dj PLEASANT GROVE e POLICH C PEPR INTON C PICKENS D I PINNOBIE B I PLEASANT VALE 0 POLKING D PERRY D PICKETT C PINO C PLEASANT VIEW 13 POLLARD C PERRYPARK 8 PICKFORD D' PINDLE B PLEASANTON 0 POLLASKY B PERRYVILLE B I PICKNEY AIDI PINON D I PLEDGER 0 1 POLLUX C PERSANTI C PICKNEY, FLOODED 0 1 PINONES D I PLEGOMIR 0 1 POLLY B PERSAYO D PICKRELL 0 1 PINRIDGE 6 PLEINE 0 1 POLO. MODERATELY C PERSHING C P;CKTON A PJNSPRING C PLETOVILLE C PSLOW PERM PERSIS 0 P CKUP C P NTAS e PLEITC C OLD. MODERATE 8 PERT D PICKWICK B PINTLAP 8 PLEVNA D PERMEABILITY PERU C PICO 8 PINTO C PLINCO e POLONIO B PERVINA 8 PICOSA C PINTURA A PLITE 8 POLSON 8 PERWICK C P:DCOKE 0 PINTWATER D PLOME e POL UM 8 PESCADERO 0 P DINEEN D PIOCHE D PLOVER C POMADE D PESCAP C PIE CREEK D I PIOPOLlS C/Cl PLUCK C POMAN C PESHASTIN 0 PIEGON 8 PIPELINE D PLUMAS L, POMAT C PESHEKEE 0 PIERIAN B PIPEr C PLUMMER B/D1 POMAT, DRY 8 PESMO C PIERKING D PIPESTONE 6 PLUSH B I POMELLO C PESMORE C PIERPONT C PIPPIN A PLUTOs 6 POMEPENE C PESO C PI ERPE D PIRD 8 PLYMOUTH A POMFRET A PESOWYO C PIERSONTE A PIPODEL 8 POALL C POMO 8 PETACA D PIERZ 6 PIROUETTE D POARCH B POMONA 8/0 PETAL C PIETOWN 8 PIRUm 8 POSER C POMONA, D PETAN D PIGTAIL C. PISGAP C POCALLA A DEPPESSIONAL ETEETNEET D P;IHONUA A PISHKUN 8 POCAN 0 POMPANO B/D PETERMAN D P KE 8 PISMO D POCASSET 6 POMPANO. D PETERMAN. SANDY C PIKEVILLE B PIT D POCATELLO e DEPRESSIONAL PSUBSTRATUM,. PILASO e PITCHER A PCCATY D POMPANO, FLOODED D ALKALI PILCHUCK C PITCO D I POCKEP C POMPEII D PETERS D PILCHUCK A PITNEY C POCOLA D POMPONIO C PETERSON 9 PROTECT@@D PITTMAN C POCOMOKE. PONDED e/D@ POMPTON e PETESCREEK. STONY 8 PILINE D PITTSFIELD e POCOMOKE, DRAINED 6 POMPOY C PETESCREEK, C PILLIKEN 9 PITTSTOWN C POCONO 8 PONCA e GRAVELLY PILLOT 8 PITZEP C PODEN E PONCENA D PETRIE D PILLSBURY C PIUTE D rODMOP C PONCHA A PETPOLIA C/D PILOT PEAK D PIVOT A PODO D PONCIANO C PETROS D P LOT RCCK C PIXLEY 0 PODUNK 8 POND D PETSPRING D PILOTPEAK D I PIZENE e PCDUS C POND CPEEK a PETTICOAT B PILTDOWN 5 1 PLACEDO D POE C PONDER D PETTIGREW B/Dj PILTZ C PLACENTIA D POGAL C PONIL D PETTUS C PIMA 8 PLACEPITOS. e POGANEA8 C PONINA D PETTY 5 PIMER S PSAL;NE;,DRAINED C POGANEAB;UCLAYEY D PONOZZO C PEYETO A PINAL D LAC RI S. SUBSTPA M PONTO B PEWAMO C/D1 PINALEND B SALINE-ALKALI POGANEAB, SALINE D PONTOTOC B PEYTON 0 1 PINAMT 8 PLACERITOS. a PCGANEAS. HIGH D PONZER 0 PFEIFFER a PINATA C MODERATELY WET RAINFALL POOCHAM a P11GE I PINAVETES A PLACEPITOS: WET C POGANEAS. STRONGLY D POOKU e PHALANX B PINBIT 5 PLACER TOS B SALINE POOLEP D PHANTOM C I PINCHER C CPAINED POGANEAB. D POOLEVILLE C PHAPO 8 1 PINCHOT 6 1 PLACID &/Dj FPEOUENTLY POORCAL B PHARR 0 PINCKNEY C I PLACID, D FLOODED POORMA a PHEBA C PINCONNING V/Dj CEPRESSIONAL POGANEA8. D POOSE 0 PHEENEY C PTNE FLAT B PLACOI FREQUENTLY D PSALINE-ALKALI I POOTATUCK 13 PHELAN D P NEAL C, FLO D@D OGUE B POPASH D PHELPS B PINEBUTTE 6 PLACITAS C POHAKUPU 6 POPE 8 PHERSON 8 PINECREEK 6 PLACK D PCIN 0 POPHERS C PHIFERSON C PINEDA 8/Dj PLAINBO A I POINDEXTER P I POPLE C/D PHILBON D PINEDA, PLAINFIELD A I POINSETT B POPLIMENTO C PH;LDER D PDEPRESSIONAL PLAISTEO C POINT C POPOSHIA B PH LIPPA C INEDALE PLANK D PO NT ISABEL C POPOTOSA 6 PHILIPSBURG 6 PINEGUEST 6 PLANKINTON D I POISONCREEK D POPPLETON A PHILLCHER 8 PINEHUPST S PLANO F I POJO C POGUETTE A PHILLIPS C PINEISLE 6 PLANTATION 6/01 POJOAQUE B PDOUITA NOTES: TWO HYOROLOGIC SOIL GROUPS SUCH AS B/C INDICATES THE DPAINED/UNDPAINED SITUATION. MODIFIERS SHOWN, E.G., BEDROCK SUBSTRATUM, REFER TO A SPECIFIC SOIL SERIES PHASE FOUND IN SOIL MAP LEGEND. (210-VI-TR-55, Second Ed., June 1986) A-31 Exhibit A-1, continued: Hydrologic soil groups for United States soils POGUONOCK C PREMIER, B PUNCHBOWL D OUINLIVEN C I RAMROD C PORFIRID C PRENTIS C PUNG C GUINN 8/01 RAMSDELL D PORRETT D PRESA 8 PUNGO D OVINNEY C I RAMSDELLP DRAINED C PORRONE 8 PRESHER 8 PUNOHU A QUINTANA 8 1 RAMSEY D PORT B PRESTO B PUNSIT C OUINTO D I RAMSHORN B PORT BYRON B PRESTON A I PUNTA B/Dj QUINTON C I RANA D PORTAGE D PREWITT B I PUNTILLA B I QUITERIA B I RANCE C PORTAGEVILLE D PREY C PURCELLA 8 QUITMAN C I PANCHOSECO D PORTALES 6 PRICE 8 PURCHES C OUIVERA C I RANDADO C PORTALTO B PRIDA C I PUPDAM C I QUONSET A I RANDALL D PORTERFIELD C PRIDHAM D I PURDY D OUDPANT D I PANDCORE D PORTERS 8 PRIESTLAKE 8 PURETT 8 OUDSATANA 0 RANDMAN D PORTERVILLE D PRIETA D PURGATORY C PABBITEX B RANDOLPH C PORTHILL D PRIM D PURNER D RABER C RANDS C PORTIA C PRIMEAUX C PUROB D RABIDEUX 0 PANDSeURG D PORTIND C PRIMEN D PURSLEY 0 RABUN 0 RANGEE D PORTLAND 0 PRIMGHAR 8 PURVES D PACE 6 RANGER C PORTMOUNT B PRINCETON B PUSHMATAHA C RACINE 0 RANPUFF 0 PORINEUF S PRINEVILLE C PUSTOI 0 PACKER A RANSLO 0 P6PTOLA 8 1 PRING B I PUTNAM D I PACOMBES e I RANSOM L. PORTSMOUTH EI/D1 PRINGLE D I PUTNEY 8 1 PACOON C/Dj RANSTEIN 8 PORUM D PRITCHARD C I PUTT C PAD 8 RANTOUL D POSANT D PRITCHETT C I PUTTSTER C RAD. LACUSTRINE C RAPATEE 0 POSEN 5 1 PROCHASKA A/D1 PUU 00 A SUBSTRATUM RAPFLJE 8 POSEY 8 PROCTOR 0 1 PUV OPAE 8 PAD. FLOODED C RAPH L. I POSEYVILLL C PPOGRESSO C PUU PA A PADDLE B RAPHO a POSITAS D PROMISE D PUU PA. NONSTONY F RADER D RAPIDAN 0 POSKtN C PROMO D PUUKALA C PADERSBURG 8 RAPLEE C POSO 8 PRONG C PUUONE C RADFORD 8 RAPPAHANNOCK 0 POSOS C PROPHETSTOWN B/V1 PUYALLUP B I RADLEY 0 1 RAPSON a POST D PROSPECT B PY8URN D RADNOR C I PARDEN C POTAMUS B PROSPER B PYLE B RAFAEL D PARICK C POTCHUB C PROSSER C PYLON D RAFTON D RARITAN C POTEET C PROTIVIN C PYOTE A RAFTRIVER C RASSAND e POTELL 8 PROUT C PYRAMID b RAGLAN 8 PASILLE B POTH C PROUTY C PYPMONT D PAGNAR B PASSER e POTLATCH C PROVIDENCE C PYRP?,ONT. SEDROCK C RAGNEL B PASSET e POTOMAC A PROVIG C SUBSTRATUM RAGO C I RASTUS C POTOSI A PROVO D PYWELL 0 1 PAGPIE D I RATAKE D POTRATZ C PROVO BAY 0 QUAFENO C I RAGSDALE B/D1 RATHBUN C POTSDAM C PROW D I QUAKER C I RAGSDALE. OVERWASH 8 1 PATHDRUM 8 POTTER C PRUDY 5 QUAKERTOWN C I RAGTOWN C I RATLAKE D POTTINGER 8 PRUE 0 GUAM 9/01 RAHAL C I RATLEFLAT a POTTS B PRUITTON 0 QUAMON A I RAHM C RATLIFF 8 POTTSBURG B/D1 PRUNIE 0 OUANAH B I PAHWOPTH B RATON D POUDRE D I PRYOR C OUANDEP B I PAIL D PATSOW C POUJADE D PSUGA 8 QUANTICO B PAILCITY A RATTLER D POULSBO 0 PTARMIGAN C QUARLES D RAINBOW C RATTO C POUNCEY D PUAPUA 0 OUARTZBURG C RAINEY C RATTO, STONY D POVERTY D PUAULU A QUARTZVILLE B RAINIER C RAUB C POVEY B PUCHYAN 8 OUARZ C PAINO D RAVGHT B POWDER B PUDDLE E OUATAMA C PAINS B/01 PAUVILLE D POWDERHORN C PUERCO 0 QUAY 0 RAINS, FLOODED 0 1 PAUZI a I POWDERWASH C PUEPTA D QUAZO D PAINSOORO C RAVALLI D POWEEN C PUERTECITO D QUEALMAN C PAINSVILLE 8 RAVALLI, BEDROCK 8 POWELL C PUETT D OUEALY D PAIRDENT 8 SUBSTRATUM POWER B PUFFER 0 OUEBRADA C PAISIO C RAVEN A POWERLINE C PUGET D OUEENY D PAKANE C RAVENDALE D POWLEY D PUGET. PROTECTED C QUEETS 8 RAKE D I RAVENELL D POWMENT C PUGSLEY C GLEMADO C RAKIED C I RAVENNA C POWWAHKEE B PUHI 8 OVENZER 0 RALEIGH D I RAVENSWOOD C POWWATKA C PUHIMAU D I QUERC C RALLOD 0 1 RAVIA C POY D PUICE C I OVERENCIA e PALLS 6 RAVOLA 8 POYGAN D PULA C I QUETICO 0 RALPH 0 RAWAH C POYNOR 8 PULANTAT C I QUICKSELL C RALPHSTON 6 PAWE C POZO C PULASKI a QUICKSILVER D PALSEN 0 RAWLES a POZO BLANCO B PULCAN C OUICKVERT C RAMADERD 0 RAWLINS a PRAG C PULEHU 0 QUIDFK' 8 1 PAMBLA C I RAWSON 8 PRAIRIEVILLE B PULEXAS 8 OVIENSASE C PAMBOUILLET B I RAWSONVILLE C PRAMISS C PULLMAN D QUIETUS C RAMELLI 0 1 RAYBURN D PRATHER C PULPIT C QUIGLEY B PAMIRES C RAVEX D PRATLEY C PULS D QUIHI C RAMMEL C RAYFORD C PRATT A PULSIPHER D OUILCENE C RAMO C PAYLAKE D PREACHER 8 PULTNEY C QUILLAYUTE e RAMONA 0 RAYMONDVILLE D PREAKNESS B/D1 PUMEL D QUILOTOSA D RAMONA, HARD C RAYNE B PREATORSON 8 1 PUMEL, NONGRAVELLY C QUILT D SUBSTRATUM RAYNESFORO a PRESISH C/Dj PUMPER 8 1 OUIMA B RAMPART B RAYNHAM C PREBLE D I PUNA A I QUINCY A RAMPAPTER 8 RAYNOLDSON B PRELO 8 1 PUNALUU D I QUINLAN C RAMPS 8 RAYCHILL C NOTES: TWO HYDROLOGIC SOIL GROUPS SUCH AS B/C INDICATES THE DRAINED/UNDRAINED SITUATION. MODIFIERS SHOWN. E.G.. BEDROCK SUBSTRATUM. REFER TO A SPECIFIC SOIL SERIES PHASE FOUND IN SOIL MAP LEGEND. A-32 (210-VI-TR-55, Second Ed., June 1986) Exhibit A-1, continued: Hydrologic soil groups for United States soils RAYPOL C REDSTONE A PENOX 8 PICOT C I RITIDIAN D RAZ D REDSUN D RENSHAW B RICREST B I RITNER C RAZITO A REDTHAYNE B PENSLOW B RIDD C I PITO 8 RAZOR C REDTOM 8 RENSSELAER B/Dj RIDDLES 0 1 RITTER 8 RAZORBA a REDVALE C RENSSELAER. C I RIDENBAUGH D I PITTMAN C RAZORT B REDVIEW 5 NONSTRATIFIED RIDGE 8 1 RITZ D RAZSUN D REDVIEW. WET C SUBSTRATUM RIDGEBURY C PITZ. DRAINED C READING B REDVINE C RENTILL e RIDGECREST C RITZCAL B READINGTON C REDWASH D RENTON D PIDGEDALE B RITZVILLE 8 READLYN 8 PEE B RENTON. DRAINED C I RIDGELAND B/Dj RIVALIER 8 REAGAN 8 REEBOK D RENTSAC D RIDGELAWN 8 RIVERDALE A REAKOR 8 REED D RENTZEL C RIDGELAWN. WET D RIVERHEAD 8 REAL D REED. DRAINED C REPARADA D RIDGELITE D RIVEROAD B REALLIS 0 REED, PROTECTED C REPP 8 RIDGEPORT B RIVERSIDE A REAP D REEDER 8 REPPART 9 RIDGEVIEW D RIVERTON B REARDAN C REEDER. COOL C REPUBLIC El RIDGEVILLE B RIVERVIEW B REAVILLE C REEDSBURG C RESCUE 8 RIDGEWOOD C RIVIERA C/D REAVIS 8 REEDSPORT C RESNEP B RIDIT C RIVIERA. D REBA C REEDY 0 RESORT D RIDLEY C DEPRESS,IONAL REBEL 6 REEFRIDGE D RESOTA A RIDOTT C RIVIERA. LIMESTONE B/D RECAPTURE 8 1 REELFOOT C RESTING C RIEDEL C SUBSTRATUM PECK D I PEEP0 C RESTON D RIEDTOWN C RIVIERA. LIMESTONE 0 RECLUSE 8 REESE C PET D RIEPE C SUBSTRATUM. RED BAY 8 REESER C RETRIEVER D RIESEL C DEPRESSIONAL RED BLUFF C REESVILLE C PETROP C RIETBROCK C I PIVRA D RED BLUFF. B REEVES B RETRYDE C RIFLE A/D] PIXIE C GRAVELLY REFLECTION B REVA D RIGA D RIXON C RED BUTTE 8 REFUGE C REVEL C RIGDON C RIZ D RED HILL B REGAL B/D 11 11 EVE NT ON 8 RIGGSINS D RIZNO D RED H OOK C REGAN B/D REVERE B/D RIGG D RIZOZO D RED ROCK a REGENT C I REVIT C RIC-LEY 8 ROANE C RED SPUR B REGGAD A REWARD 8 RIGOLETTE C ROANHIDE C REDARROW D I REGGEAR D REXBURG 13 RILEY 6 ROANOKE 0 REDBANK B PEGGEAR. COOL C REXFORD C PILLA 8 ROARING B REDBELL B REGNAPS C RE11MONT D RILL;NO R06 C REDBIRD a PEGNTER D REXOP A RILL TO B8 ROBARNOAY B REDBOW C REHBURG C REYAe 8 RIMER C ROBBS D REDBY 8 REHFIELD 8 1 REYES D RIMINI A I ROBCo C -REDCAMERON D REHFIELD C REYNOSA B RIMROCK D POBFP C REDCAN 0 REHM C REYW AT D P;MTON C ROBERTSDALE C REDCAP REICESS B REZAVE D R N 0 ROBERTSVILLE 0 REDCHIEF C REICHEL B RHAME e RINCON C ROBIN a REDCLIFF C REIFF 5 RHEA 8 RINDA D ROBINETTE 8 REDCLOUD 3 REILLY A RHINEBECK D I PINDGE D ROBINSONVILLE 8 REDCO D REINA 0 RHOADES D I PINDGE. DRAINED C ROBOZ0 C PEDCREEK D PE:NACH e PHOA C R;NEARSON B POBRODST 8 D RE NER a PHOA"ME REDDALE ETT C R NEY B ROBSON 0 REDDICK B/D1 PEKOP 0 1 RHOAMETT. STONY C RING C I ROHY C REDDING D RELAN 6 1 RHONE B RINGLE B I ROCA D REDEYE 8 RELAY B I RIB B/D1 RINGLING A I ROCHE D REDFEATHER 0 RELIANCE C PIBEPA C RINGO D ROCHELLE C REDF;ELD. 8 RELLIZY D RIBHILL B R;NG:OOD B POCHER_ 9 REDF ELD WET C REL E B RICCO D R NK R C ROCHESTER A REDFLAME 9 RELSOB 8 RICEBOR0 B/Dj RID D I ROCIO C REDHOUSE 0 PELUCTAN C PICECROSS B RID ARRIBA D I ROCK CREEK D REDIG 8 REMBERT D RICERT 8 RID DIABLO C I ROCK RIVER 8 REDINGTON D REMEDIOS C PICET ON 0 R,10 GRANDE B ROCKABIN C REDLAKE D REMLAP C RICEVILLE C P 0 LAJAS A ROCKAWAY C REDLANDS 0 REMLIK A RICH C RIO PIEDRAS 5 1 ROCKBRIDGE 8 REDLEVEL C REMMIT 8 RICH, WET 0 RIOSLANCHO C I ROCKCASTLE D REDLODGE D I PEMNOY D RICHARDSON B RIOCONCHO C I ROCKDALE A REDMANSON 5 REMOTE B RICHENS C RIOLINDA C I ROCKDALE B REDMOND C REMSEN D R11CHEY C 11 R 11 ON 8 ROCKER S C REDMOUNT 8 PEMUNDA C R CHFIELD B P PEC D ROCKFIELD 8 REDNIK 8 REMUS 13 1 RICHFORD A I RIPLEY B ROCKFORD a REDNIK. NONSTONY C PENBAC D I RICHLAND 0 1 RIPLEY. C ROCKHOUSE A PEDNUN C RENCALSON C I RICHMOND v I SALINE-ALKALI. ROCKINCHAIP C REDOLA 5 RENCOT D I RICHSUM B WET ROCKLIN D REDONA 0 RENFROW 0 1 RICHTER B RIPON B ROCKLY D REDONDO a RENICK D RICHVALE B RIPPLE 8 ROCKOA B REDPOP C RENISH C PICHVIEW C RIPPOWAM C ROCKTON 5 REDPORT 8 RENNER 5 RICHVILLE C RIRIE 8 ROCKWELL B/D REDRIDGE 8 RENNIE 0 PICHWOOD 8 RISBECK B ROCKWOOD C REDRIVER C RENNIE: DRAINE RICKER A RISLEY, D ROCKY.FDRD REDR 8 C RENNIE PROTECT r 0 ED C P CKETTS C RISLEY STONY C ROCKY AR B REDSPEAR D PEND D RICKMAN C RISUE 0 RODAD 0 REDSPRINGS 8 RENOHILL C RICKMORE C I RISWOLD 8 1 RODELL 0 REDSPRINGS. GRADED D RENOL C RICKREALL D RITA D I RODEO D REDSTOE B I PENOVA 0 PICKS A RITCHEY D I RODESSA D NOTES: TWO HYDROLOGIC SOIL GROUPS SUCH AS B/C INDICATES THE DRAINED/UNDRAINED SITUATION. MODIFIERS SHOWN, E.G.. BEDROCK SUBSTRATUM. REFER TO A SPECIFIC SOIL SERIES PHASE FOUND IN SOIL MAP LEGEND. (210-VI-TR-55, Second Ed., June 1986) A-33 Exhibit A-1, continued: Hydrologic soil groups for United States soils RODIE A 11 OSENDALE C RUOY 8 SAeENYO B I SAMINIEGO C RODMAN A ROSENWALL D PUBYHILL C SABINA C SAMISH D RODROF D ROSEVILLE 8 RUCH B SA8 TNE A SAMMAMISH D ROEBUCK D ROSEW 0OD A" DI RUCK ER a SABLE O/D: SAMOIS T D ROELLEN D ROSEWOOD . WET D I RUCKLFS D SAC 8 1 SAMOP D ROEMER C I ROSEWORTH D I RUCLICK C I SACHEEN A I SAMPSEL 0 POETEX 0 1 POSHE SPRINGS D I RUDD D I SACHETT C SAMPSON a ROFISS 0 1 ROSHE SPRINGS, C I RULDLEY D I SACO 0 SAMSIL D ROGAN 5 DRAINED I RUOEEN C I SACRAMENTO 0 SAMSULA B/D ROGERSON 1) ROSHOLT B I PUCYARD r I SACTUS 0 1 SAN ANDREAS e ROGERT D RCSINE 8 1 PUEDLOFF 6 1 SACUL C I SAN ANTON ROGRUOE 0 ROSITAS A I RUELLA B I SADDLE C I SAN ANTONIO C C ROGUE 0 ROSITAS. CLAYEY C I RUFUS D I SADDLEBACK C/Dj SAN ARCACIO ROHAN D SUBSTRATUM I PUGAR C I SADDLEGAP B I SAN BENITO a POHNERVILLF 9 ROSITAS, LOAMY, C I RUGG a I SADDLEROCK D I SAN EMIGDIO 0 POHONDA C WET I RUGLES F. I SADEP D I SAN GERMAN D RDHRERSVlLLE D I POSITAS, WET C I RUME D SADIE C I SAN ISABEL A ROIC 0 1 ROSLYN 6 1 PUILIGSO C SADLER C I SAN JOAGUIN D ROJO C I ROSMAN 6 1 RUINPOINT 8 SAFFELL E I SAN JON C ROLETTE, C I POSNEY B I RUIZ A SAG 8 1 SAN JOSE 8 ROLFE C I ROSS B I PUKO D SAGANING A/Dj SAN JUAN A ROLIE 0 1 ROSSBUPG B I RULE 8 SAGASER 8 1 SAN LUIS ROLISS S/Dj ROSSFIELD 8 1 RUPBLECREEK B SAGE D I SAN MATEO 6 ROLLA C I ROSSMOOR 5 1 RUPBO C SAGECPEEK 6 1 SAN MIGUEL 0 C POLLINGSTONE C I RDSSMOYNE C I RUMFORD B SAGEDALE C I SAN SABA D ROLOC D I ROSWELL A I RUHLEY 8 SAGEMILL e I SAN SEBASTIAN a POLOFF C I POSY B I Ruw4ry C SAGEMOOR 8 1 SAN SIMEON D ROMBERG 6 ROTAMER e I RUMPAH C, SAGEPS 6 SAN TIMOTEO ROMBO C ROTAN C I RUPPLE C SAGEPTON C SAN YSIDRO 0 D ROME 6 ROTHICAN 6 1 PUMUNG C SAGLE C SANCHEZ ROMEO 1) ROTHIEMAY C I RUNE C SAGO D SANCLEMENTE D ROMERO D I ROTHSAY 9 1 PUNEBERG C/Dj SAGOUSPE C SANDALL C RO,4GAN C I ROTINOM F. I RUNGE P I SAGOUSPE, DRAINED 8 SANDBRANCH ROMIA 5 1 POTO C I PUNN D SAGUACHE 8 SANOCREEK D ROMINE 5 1 rOTTULFE C I RUPLF C SAMALIE 8 1 SANDERSON a ROMINELL C I POUBIDEAU C I RUPLEY A SAHUARITA a I S4NOHILL B" ROMNELL 8/Dj ROUEN C I RVSCO C SAID E I SANDIA 8 ROMSTOCK 8 1 POUGHCREEK. D I RUSCO. P ON DED D SAIDO F I SANDOSE A ROMULUS D FOUGHLOCK e I RUSE D I SAILBOAT C I SANDOVAL 0 RONAN 0 ROUGHMOUNT C I PUSH L, I SAILBOAT. DRAINED 6 1 SANDPIDGE A POND C ROUND BUTTE D I RUSHPORE e/01 SAIPAN a I S&NDSPRING a PONDEAU A/D1 POUNDABOUT C I PUSHTOWN A SAL D I SANOUN B RONDELL 6 1 ROUNDFARN E I RUSHVILLE D SALADAR 0 1 SANDUSKY D PONDOWA 9 1 POUNDHEAD 8/01 RUSU 8 1 SALAVON D I SANOVIEW e RONNEBY C POUNDOR C I PUSON C I SALAL C I SANDWASH rONSFL 6 POUNDTOP C I RUSS F SALAMATOF D SANDWICK 8 D RONSON B POUNDUP C I RUSSELL B SALANDER 8 SANFLI ROONEY D POUNDY C I RUSSIAN E SALAS C SANFORD B ROOSFT C I ROUSSEAU A j RUSSLER C SALCHAKET 5 SANGER D ,ROOSEVELT C I POUTON D I RUSTICO P. SALCO 0 SANGO C ROOT 8/D1 PbUTT C I RUSTIGATE C. I SALEM C SANHEDRIN B RODIEL C I ROVAL & I RUSTON B I SALERATUS C SANIBEL 5 ROPER B/Dj ROWDEN C I RUSTY B SALFRNO 6/01 SANILAC all ROSALIE 6 1 ROWDY F RUTAE 6 SALGA C I SANJE 8 ROSAMOND B ROWE C, PUTERSVILLE C SALIDA A I SANLOREN 8 ROSAMOND. C ROWEL D PUTHFPFORD C SALINAS 8 1 SANPETE a SALINE-ALKALI. ROWENA C PUTL AND C SALISBURY C I SANPITCH C FLOODED ROWLAND C I RUTLEGE e/D1 SALIX 8 1 SANPOIL 0 ROSANE 0 ROWLEY C I RYAN D SALKUM S I SANSARC D POSANKY C POXAL 0 1 RYAN PARK 8 SALLISAW B I SANTA 0 ROSARIO C ROXANA e I RYAPK A SALLYANN C I SANTA CLARA C D ROXe.URY b I PYCO 0 SALMO C/D1 SANTA FE D ROSCOE ROSCOMMON A/01 ROXEP 5 R YDE C SALMON e I SANTA I SAO E: L ROSE CREEK C I POXTON D P YC E P C SALONIE D I SANTA LUCIA C ROSE CREEK. a I ROY PYDOLPH C SALT CHUCK A I -SANTA MARTA C DRAINED POYAL 8 RYEGATE C SALT LAKE 0 1 SANTA YNEZ D ROSE VALLEY D POYCE C RYFLL a I SALTAIR D I SANTANA 0 ROSEBERPY D ROYGORGE 0 RYELL- S AL, I NE D I SALTER 8 1 SANTANELA D ROSEBLOOM D POYOSA A PYEPATCH C I SALTEPY 0 1 SANTAOUIN A ROSEBOROUGH 6 ROYST C RYER C I SALTESE 0 1 SANTAROSA e ROSE6UD 6 ROYSTONE P PYKEP 6 SALTINE C I SANTEE D POSEI)URG L, ROZA C R YMA N C SALTON 0 1 SANTIAGO 8 POSEDHU B/Dj POZELLVILLE I' pyoRp C SALUDA C I SANTIAM C ROSEGLEN 6 POZETTA 8 RYPOC 8 SALVISA C I SANTO a ROSEHAVFN 8 ROZLEF C I RYUS 8 SALZEP 0 1 SANTO TOMAS B ROSEHILL 0 RUARK 6/Dj SAAR C SALZER. PROTECTED C I SANTONI D ROSELAND 9 RUBICON A I SAaANA r SAMOA D I SANWELL B ROSELLA D RUBIO C/Dj SABANA SECA C SAMePITO B I SAPEHA 8 ROSELMS D RUBSON 8 1 SAeE B SAMDAY D I SAPELO NOTES: TWO HYDROLOGIC SOIL GROUPS SUCH AS B/C INDICATES THE DRAINED/UNDPAINED SITUATION. MODIFIERS SHOWN. E.G.. BEDROCK SUBSTRATUM. REFER TO A SPECIFIC SGIL SERIES PH45E FOUND IN SOIL MAP LEGEND. A-34 (210-VI-TR-55, Second Ed., June 1986) Exhibit A-1, continued: Hydrologic soil groups for United States soils SAPINERD 8 SAWTOWN C SCOTCH 0 1 SEITZ C I SHAKER C SAPKIN C SAWYER C SCOTCO A SEJITA D I SHAKESPEARE C SAPPHIRE C SAXBY 0 SCOTIA B SEKIL B I SHAKOPEE C SAPPINGTON 8 SAXON C SCOTT D SEKIU D SHALAKE C SARA 0 SAY 8 SCOTT LAKE 8 SELAH C SHALAKO D SARAGOSA 8 SAYBROOK 8 SCOTTCAS e SELBIT 8 SHALBA D SARAHSVILLE D SAYDAB C SCOTTIE S e SELDE"N C SHALCAP, D SARALEGUI a SAYERS A SCOTTSVILLE C SELEVI 0 SHALCAR DRAINED C SARANAC C/D1 SAYLES D I SCOUT P SELFRIDGE B SHALCLEAV D SARANAC. GRAVELLY C SAYLESVILLE C SCRABBLERS P SELIA C SHALET D SUBSTRATUM SAYNER A SCRANTON A/Dj SELIGMAN D I SHALONA 5 SARAPH D SAYPO C SCRAVO 0 1 SELKIRK C I SHALPER 0 SARATON C SAZI C SCRIBA C I SELLE B I SHAM D SARAZAN a SCALA e SCRIBNER C I SELLERS B/D1 SHAMSO a SARBEN B SCALADE D SCRIVER B I SELMA B/Dj SHAMEL B SARCILLD D SCALFAR 8 SCROGGIN C I SELMAC 0 1 SHAMOCK C SARDINIA C SCALLEY 8 SCULLINN... C SELON 0 SHANAHAN B SARDIS C SCAMMAN D SCUPPER D SELTI 8 SHANDEP B/D SARGEANT D SCANDARD C SEABROOK C SELWAY B SHANE 0 SARILOA C I SCANTIC D f SFAFIELD e SEMIAHMOO D SHANGHAI C SARITA A I SCAPONIA 5 1 SEAFORTH 0 SEMIAHMOO, DRAINED C SHANGHAI. DRAINED 8 SARKAR D I SCAR 6 1 SEAGATE A/01 SEMINOLE D I SHANKLEP A SARNOSA 8 SCARBOPO D SEAGOVILLE D SEMPER C SHAND e SARONA B SCAR18OU B SEALY 8 SEN B SHANTA B SAPPY A SCAPPER C SEAMAN V SENCHERT C SHAPATIN e SARTELL A SCATLAKE D SEAMAN, STRONGLY C SENECAVILLE 6 SHAPESNOUT C SARUCHE D SCAVE C SALINE SENSABAUGH 5 SHARKEY D SASABE C SCHAFFENAKER A I SEAMAN. MODERATELY C SEQUATCHIE E I SHAPLAND 5 SASALAGUAN C SCHALLER A SWET SEOUIM. A I SHARON 8 SASCO 8 SCHAMBER A EAOUEST C SEQUOIA C I SHARONDALE B SASKA B SCHAMP C SEAR E I SERDEN A SHARPS C SASPAMCO 8 SCHAPVILLE C SEARING E I SERENE C SHARPSBUPG 0 SASSAFRAS 8 SCHATTEL C SEARLA B I SEROCO A SHAPPOTT D SCHAUSON 11 SEARLE S C SER PEN C S"APVANA C 0 SEPPEN SHASER SATAGO D SCHAWANA D SEARSPORT TAN. B B SATANKA C I SCHENCO 0 1 SEARSVILLE D SERPOD C SHASKIT C SATANTA 0 SCHERRARD D SEASTRAND D SERRANO 0 1 SHASTA 6 SATATTON D SCHLEY 8 SEATON e SERVfLLETA 0 1 SHAsriNA 6 SATELLITE C SCHMUTZ 8 SEATTLE D I SESAME C I SHATRUCE C SATILLA D SCHNEBLY. 0 SEATTLE;NDRAINED C I SESPE C SHATTA C SATIN C SCHNETDE I-B SEAVERS D SESSIONS C SHATTUCK 8 SATSOP B SCHNIPPER C SEAWILLOW B SESSUM D SHAUSON e SATT C SCHNOORSON C SEBAGO D SET C SHAVANO 6 SATTLEY 8 SCHNORBUSH 13 SEBASTIAN 1) SETH C SHAVASH C SATTRE 3 SCHODSON C SEBASTOPOL C SETTERS D SHAVER B SATURN 8 SCHDENS A SEBEWA E/D1 SETTLEMENT D I SHAWA B SATUS B I SCHOFIELD C SE59EE D I SETTLEMEYER C I SHAWANO A SAUCEL D SCHOMARIE C SESPJNG 8/D1 SET T LEME YE R, D I SHAWMUT 8 SAUCIER C SCHOLLE 8 SEBUD 8 1 SALINE-ALKALI I SHAY D SAUDE a SCHOODIC D SECCA C SETTLEMEYER, 0 1 SHAYLA D SAUGATUCK C SCHOOLCRAFT 8 SECESHSET 0 FLOODED I SHEAR C SAUGUS 9 SCHOOLEY 0 SECOND C SETTLEMEYER. COOL 0 1 SHEAVILLE D SAUK 8 SCHOOLEY. DRAINED C SECRET CREEK B SETTLEMEYER. e I SHEBANG 0 SAULICH D SCHOOLEY. C SECURITY C CHANNELED SHEBEON C SAUM 0 PROTECTED SED C SEVAL C SHEDADO C SAUNDERS D SCHOOLHOUSE D SECALE D SEVENMILE 0 SHEDD C SAURIN C SCHOONER D SEDGEFYIELD C SEVERN B SHEDHORN D SAUTER 8 SCHRADER r S EQG W A E SEVIER D SHEECAL B SAUVIE D SCHRAP D SEDILLO S SEVILLE 0 SHEEGE D SAUVIE. MODERATELY C I SCHRIEP B SEDMAR D SEVY e SHEEK e WET I SCHROCK E SEOROWOOLLEY C SEWANEE 0 SHEEP CREEK C SAUVIE 'PROTECTED 8 SCHROON 0 SEDWELL C SEWARD B SHEEPCAN a SAUYDLA C SCHUELKE C SEEDSKADEE D SEWELL C I SHEEPHEAD C SAUZ B SCHULINE B SEELEZ A I SEXTON C/D1 SHEEPROCK A SAVAGE C SCHUMACHER B SEELOVERS C I SEYMOUR D SHEEPSCOT 6 SAVAGETON 0 SCHUSTER 8 SEELYEVILLE A/01 SEZNA 0 SHEETIRON C SAVANNAH C SCHUYLER B SEELYEVILLE, D I SHAAK C SHEFFIELD 0 SAVENAC C SCIO B SLOPING I SHA8LISS D SHEFFIT D SAVO C SCIOTOVILLE C SEEPRID 8 1 SHACK B SHEFFLEIN a SAVOIA 8 SCISM C SEES C I SHADELAND C SHELBIANA a SAVONA C SCITICO C SEEWEE 8 1 SHADELEAF C SHELBURNE C SAWASE 0 SCITUATE C SEFFNER C I SHADOW 8 SHELBY a SAWATCH B/Dj SCLOME 8 1 SEGIDAL D I SHADYGROVE C I SHELBYVILLE e SAWOUCK 8 1 SCOAP 8 1 SEGNO C I SHAFFTON 0 SHELD 8 SAWCREEK C I SCOBEY C I SEGUIN B I SHAFTER D SHELL 0 SAWDUST 8 1 SCOGGIN D I SEGURA 0 1 SHAGEL D SHELL A 13ARGE R a SAWMILL B/D1 SCOON D I SEHOME C I SHAGNASTY C I SHELLBLUFF a SAWTELL C I SCOOTENEY B I SEHORN D I SHAKAMAK C I SHELLCREEK C SAWTELPEAK D I SCORUP C I SEIS C I SHAKAN C I SHELLORAKE A NOTES: TWO HYDROLOGIC SOIL GROUPS SUCH AS B/C INDICATES THE DRAINED/UNDPAINED SITUATION. MODIFIERS SHOWN. E.G.. BEDROCK SUBSTRATUM. REFER TO A SPECIFIC SOIL SERIES PHASE FOUND IN SOIL MAP LEGEND. (210-VI-TR-55, Second Ed., June 1986) A-35 Exhibit A-1, continued: Hydrologic soil groups for United States soils SHELLROCK A SHOTGUN C SIMON 8 SKYHIGH C SNOWDANCE. C SHELMADINE D SHOTWELL D S;MONAO L' SKYKOMISH B MODERATELY WET SHELOCTA B SHOUNS H S MONI 8 SKYLTCK 0 SNOWDON D SHELTON C SHOWALTER C SIMONTON 2 SKYLINE D SNOWLIN 13 SHENA D SHOWALTER, STONY 8 S IM.PARK D SKYMOR 0 SNOWMORE C SHENANDOAH D SHOWLOW C SIMPATICO 8 SKYROCK D SNOWSHOE 8 SHENKS B/Dj SHPEE 8 1 SIMPSON C I SKYYILLAGE D SNOWSLIDE 8 SHENON 8 1 SHREWDER a I SIPS D I SKYWAY 8 SNOWVILLE D SHENVAL 0 1 SHREWSBURY C/Dj SINAI C I SLAB D I SNUFFUL C SHEP 0 SHRINE 8 SINAMOX a SLAeTOWN B I SOAKPAK' B SHEPAN C C SINCLAIR C SLACKS C 50APCREEK C SHEPPARD A SS HHFR? 00 UE T S D SINGAT E D SLAGLE C SOAPLAKE D SHEPSTEP D SHUBUTA C SINGERTON 8 SLAPJACK 8 SOAR D SHERANDO 8 SHUE C SINGLETREE C SLATERY C SOBEGA C SHERAR C SHUKASH A SINGSAAS 6 SLAUGHTER C SOBOBA A SHERBURNE C SHUKSAN C SINKER C SLAUGHTERVILLE 6 5086L C SHERIDAN 8 SHULE C SINKSON E SLAYEN C SOBRANTE 6 SHERLESS 8 SHULLSBURG C I SINLOC C SLAW C SOBSON C SHERLOCK 8 SHUMLA C SINNICE V I SLAYTON D I SOCORRO C SHERM 0 SHUMWAY D SINNIGAM 0 1 SLEEPER C SODA B SHERMORE 8 SHUPERT C SINTON B I SLEETH C SODA LAKE 13 SHERRY B/01 SHURLEY A I SINUK 0 1 SLICKROCK B SODA LAKE. WET C SHERRY, STONY D SHUSTER C SION 8 SLIDECREEK 6 SODABAY B SHERRYL B SHUTTLE B Sioux A SLIDELL D SODASPRING a SHERWOOD B SI C SIOUXON 0 SLIGHTS C SODERVILLE A SHEVLIN C SIBELIA 0 SIPPLE 8 SLIGTING C SODHOUSE 0 SHIDLEP D SIBLEY e SIPSEY 8 SLIKOK D SODUS C SHIELDS C SIBLEYVILLE 6 SIPrPAK A SLIMBUTTE B I SOELBERG 5 SHIFFEP C I SICKLES B/D1 SIRI 8 1 SLINGER 0 1 SOEN C SHILLY C I SICKLESTEETS a I SIROCO C I SLIPBACK 8 1 SOFIA C SHILOH B/Dj SIODOWAY A I SIRREF D I SLIPMAN e I SOFTSCRABBLE C SHIMA C SIDELL 8 SIPPETTA C I SLOAN B/Dj SOFTSCRABBLE, e SHIMMON C SIDLAKE C SISK C SLOCAVE 0 1 RARELY FLOODED SHINAKU D SIDON C SISKIYOU B SLOCUM C I SOGI C SHINBARA 0 SIEBEN a SISSETON F SLUICE C I SOGN D SHINDLEP C SIEBERT A SISSON P SLUKA C I SOGO a SHINER C SIECHE C SISTEPS A SLY e I SOGZIE 8 .SHINGLE D I S IELC' D SITAP F. SMACKOUT 8 1 SOHAPPY 0 SHINGLEMILL D SIEROCLIFF C SITDOWN A SMALL C SOJUR D SHINGLETOWN C SIERRA 6 SITES C SMALLCONE D SOLAK D SHINKEE C SIERRAVILLE B SIwELL, C SMARTS 8 SOLANO D SHINNPEAK D SIESTA D SIXBEACON 6 SMAVG 8 SOLDATNA a SHINROCK C SIEVERS C SIXMILE C SMEDLEY 0 1 SOLDIER C SHIOCTON C SIFTON a SIZEP 8 SHELTER C I SOLDUC 6 SHTOYA A SIG D SKAGGS C I SMILEY B/Dj SOLEDAD 8 SHIPLEY 8 SIGNAL C SKAGIT D SPILEYVILLE D SOLIER D SHIPLEY. C I SIGURD 8 SKAGWA.Y C SPILO C SOLIS C SALINE-ALKALI I SIKESTON B/DI SKAHA A SHTTHBORO D SOLLEKS C SHIPPA D SILAS R SKALAN C SPITHDALE B SOLLER D SHIPROCK 8 SILAS. WFT C SKAMANIA B SMITHNECK C SOLO C SHIPS D SILAS, GRAVELLY C SKAMO C SMITHNECK. DRAINED 6 SOLOMON D SHIPSHE 8 SUBSTqATUH SKANEE C _SMITHTON D SOLONA C SHIRK C SILAWA 8 SKANID D SMITHVILLE B SOLWAY a SHIRLEY 8 SILCOX e I SKATE B I SMI THWI CK D SOMBORDOPO D SHIRO C SILENT D I SKEDADDLE D I SMCCPEEK C SOMBRERO C SHIRTTAIL a J.SILEP B I SKEIN D I SMOKEY C I SOMERS 8 SHIVELY 8 1 SILERTON 9 SKFLLGCK 6 1 EMCLAN C I SOMERVELL a SHIVIGNY 8 SILHOUETTE C SKELON C SMYRNA B/D1 SOMSEN C SHIVLUM 8 SILI C SKELTON E SNAG 8 SONAHNPIL 0 SHOALS C SILKIE C SKERRY C SNAHOPISH B SONDOA 6 SHOAT D SILSTIO A SKIPO E, SNAKE C SONLET D SHOBA D SILVA C SKIDMORE 6 SNAKE HOLLOW A SONOCAN C SHOEPEG C SILVER C SKINNER P SNAKELUM 8 SONDITA 8 SHOESTRING B SILVER CREEK D SKIPANON 6 SNAKEP 0 SONOMA C SHOKEN D SILVERADO B SKIPOPA D SNAPP C I SONOMA. MODERATELY D SHONKIN D I SILVERSELL C I SKIYOU B SNEAD 0 1 WET. SALINE SHONTIK C SILVEP-30% D SKOKOMISH 0 SNEFFELS C I SONDMA. SALINE. B SHOOFLIN 0 SILVERCHIEF C SKCKOVISH- DRAINED C SNELL C I DRAINED SHOOFLY D SILVERCLIFF 8 SKOLY 8 SNELLING 0 1 SONOMA. STRATIFIED D SHOOK C SILVERDALE A SKOOKUP. C SNELLMAN B I SUBSTRATUM SHOOKER C SILVERY A SKCS 0 SNIDER C I SONOMA. DRAINED. 8 SHOREEK C SILVERTON C SKOWHEGAN I? SNOHOMISH D I SLIGHTLY SALINE SHO:ZEWOOD C SILVIES D SKULL CREEK C SNOMO C I SONOMA. DRAINED. B SHORIM C I SIMAS C SKULLGULCH C SNOOK 0 1 FLOODED SHORT CREEK C I SIMCOE C SKULLWAK D SNOPOC P I SONDMA. DRAINED 8 SHORTCUT C I SIMEON A I SKUMPAH C I SNOGUALMIE C I SONDRA B SHORTHORN D SIMEROI 0 1 SKUTUM C I SNOTOWN B I SONTAG D SHORTYORK C SIMMONT C I SKYVERG C I SNOW 8 1 SOOLAKE 8 SHOSHONE C SIMODA C I SKYHAVEN C I SNOWDANCE D I SOONAHBE 8 NOTES: TWO HYDROLOGIC SOIL GROUPS SUCH AS B/C INDICATES THE DRAINED/UNDRAINED SITUATION. MODIFIERS SHOWN, E.G.. BEDROCK SUBSTRATUM. REFER TO A SPECIFIC SOIL SEPTES PHASE FOUND IN SOIL MAP LEGEND. A-36 (210-VI-TR-55, Second Ed., June 1986) Exhibit A-1, continued: Hydrologic soil groups for United States soils SOONAKER C SP;NEKOP, 0 STABLER 8 STEUBER 8 STRELNA. SILTY 'a SOOSAP C SP NEKOP SALINE C STADY B STEVENS 8 SUBSTRATUM SOPER C SPINEKOP. C STAFFORD C STEVENSON 8 STREVELL B SOQUEL 8 MODERATELY WET STAGECOACH B- STEWART D STRICKER 8 SORENSEN 8 SPINKS A STAHL C STEWYAL, D STRICKLAND C SORF C SPINLIN. C STAKE C STICKNE C STRINGAM B SORRENTO B SPINNEY 0 STALEY B STIDHAM 0 STRINGTOWN B SORTER D SPIRES D STALLINGS C STIEN B STRINGTOWN. GRADED C SORUM D SPIRIT C STAMBAUGH 8 STIGLER D STROLE C SOSA C SPIRO 8 STAMFORD D STILES C STROM C SOSTIIN D SPIVEY 0 STAMP D STILGAR 6 STROMAL 8 SOTIM a SPLAWN C STAMPEDE D STILL 5 STRONGHOLD 6 SOUGHE D SPLENDDPA C STAN 8 STILLMAN 0 STRONGHURST B SOULAJULE C SPLITEN D STANDLEY C STILLWATER D STROUPE C SOUTHACE B SPLITRO D STANDUP 8 STILSKIN C STROZZ C SOUTHAM D SPLITTOP C STANEY D STILSON 6 STRYCH B SOUTHFORK D SPOFFORD D I STANFIELD C STIMCA 8 STRYKER C SOUTHGATE D SPOFMORE C STANISLAUS C STIMSON D STUBBLEFIELD C SOUTHMOUNT C SPOKANE C STANISLAUS. WET D STINES 6 STUBBS C SOUTHRIDGE B SPOKEL 5 STANROD C STINGAL 8 STUCKY 8 SOUTHWICK C SPONSELLER 0 STAPALOOP 8 STINGDORN D I STUDEBAKER B SOWCAN B SPOOL 0 STAPLES B/Dj STIPE C I STUKEL D SOWCAN. SOMEWHAT C I SPOONER C/01 STAPLETON B I STIRK D STUMBLE A POORLY DRAINED SPOTSYLVANIA C I STAPP C I STIRRUP 5 STUMPP D SPAA D SPOTTSWOOD' 6 1 STARaUCK D I STIRUM B/01 STUMPTOWN B SPACE CITY A SPRABAT B I 5TARGO B STIRUM, PONDED D STUNNER 5 SPADE B JSPRAY 6 1 STAPHOPE D STISSING C STUNTZ C SPADRA 8 1 SPRECKELS C STAR ICHKOF 11 STIVFRSVILLE V1 STURGEON 11 SPAGER 0 1 SPRIGGS C STARKEY C I STOCKADE B/Dj STURGILL 0 SPALDING D SPRING C STARKS C STOCKeRIDGE C I STURKIE B SPANA 0 SPRINGDALE A STARLEY D STOCKEL 0 1 STUTTGART D ,SPANAWAY A SPRINGDALE, STONY 8 STARMAN D STOCKLAND B I STUTZMAN C SPANEL D SPRINGER B STARR C STOCKPEN D STUTZMAN, WET D SPANG 11 SPRINGERVILLE D STARVEOU1 11 STODA B STUTZVILLE C SPANGENSURG C SPRINGFIELD D STASER E STODICK D STYERS 0 SPANGENBURG. 0 SPRINGGULCH B STATE B SIOHLMAN D STYX B PONDED SPRINGLAKE A STATELINE D STOKES D SUAK C SPANGLER C SPRINGMEYER B STATLER a STOKLV a SUEACC & SPARANK D SPRINGSTEEN C STATZ D S.TOMAR C SUBLETTE B SPARHAM D SPRINGWATER C STAVELY B STONEBERGER D SUBLIGNA 8 SPARKNULE 0 SPROUL 0 STAYTON D STONEBURG B SUBWELL 8 SPARMO B SPRUCEDALE D STEARNS 0 STONEHAM e I SUCARNOOCHEE D SPARR C SPUD C STECOAH 6 STONEHEAD C I SUCCESS A SPARTA. SILTY CLAY B SPUDROCK C STECUM C STONELICK B I SUCCOR D LOA S UBSTRATUM PUKWUSH 8 1 STEED A I STONELL 0 1 SUCHES B S PARMT 5 A. LOAMY A SPUR 8 1 STEEDMAN D I STONER B I SUDBURY a SUBSTRATUM SPURGER C STEEDMAN. STONY C I STONEVILLE e I SUDDUTH C SPARTA. MAAT>50 A SPURLOCK 8 STEEKEE C I STONEWALL C SUDLEY a SPARTA. MAAT<50 A SQUALICUM B ST@ELE C I STCNEWELL A SUDWORTH B SPARTA, BEDROCK A SQUALLY 5 STEENS C I STONO B/Dj SUEPEPT C SUBSTRATUM SQUAW 8 STEEPCAN D STONYFORD D SUEY B SPASPREY SQUAWCREEK D STEESE 8 STOOKHOOR C SUFFIELD C SPEAKER C SQUAWROCK C STEEVER B STORDEN B I SUFFOLK a SPEAKS A SQUAWTIP C STEFF C STORLA B SUGAKDOL 8 SPEARFISH 0 1 SQUIRES C STEGALL C STORMITT 6 SUGAPBOWL 8 SPEARHEAD 8 ST. ALBANS 0 STEIGER A STOTT C SUGARDEE B SPEARMAN B ST ANTHON e STEILACOOM C STOUGH C SUGARLOAF 8 SPEARVILLE C ST: AUGUSTYINE C STEINAUER B STOUT D SUGLO 6 SPECIE 6 ST. AUGUSTINE. 0 STEINBECK F STOVHO C SUISUN D SPECK D ORGANIC STEINSBURG C STOWE C SULA 6 SPECTACLE C SUBSTRATUM STEIWER C I STOWELL D I SULLIVAN a IPECIER, I ST CHARLES 8 STCLLAR C I STOY C ; SULLY, 8 SPEELYA D ST: CLAIR D STELLA C STRABER C SULDA 5 SPEER 8 ST. ELMO A j STEMeEP C I STRAHAN B I SULPHUPA D SPEIGLE 8 ST. GEORGE 8 5TEMILT 0 1 STRAIGHT C I SULSAVAR B SPENARD D ST. GE3RGE, SALINE C STEMLEY C STRANDLINE 0 1 SULTAN C SPENCER B ST. GEORGE. WET D STEMPLE 0 STRANDOUIST B/Dj SUMAN B/D SPENLO 8 ST HELENS B STENDAL C STRAT B S114AS D SPENS A ST: IGNACE 0 STEPHEN C STRATFORD B SUMATRA 0 SPERRY C/DI ST. JOHNS B/Dj STEPHENVILLE 5 STRATTON C SUMINE C SPEXARTH C ST. JOHNS, 0 1 STEPROCK 5 STRAW 8 SUMMERFIELD 0 SPHINX D DEPRESSIONAL I STEPSTONE B I STRAWN 8 f SUMMERS a SPICER E3/Dj ST. LUCIE A I STEPTOE a I STREATOR B/D1 SUMMERTON B SPICEPTON 0 ST MARTIN 0 1 STERL 1 8 1 STRELNA C SUMMERVILLE 0 SPICEWOOD C ST: MARYS B STERLINNGTON 6 STRELNA , B SUMMIT C SPIKE 8 1 ST. NICHOLAS D STERRETT D LACUSTRINE SUMMITVILLE C SPILLCO 8 ST. ONGE B STETSON B SUBSTRATUM SUMPF D SPILLVILLE 8 ST. PAUL 8 STETTER 0 STRELNA. TILL B SUMTER C NSPILOCK D ST. THOMAS D I STEUBEN B SUBSTRATUM SUMTERVILLE C OTES: TWO HYDROLOGIC SOIL GROUPS SUCH AS B/C INDICATES THE DRAINED/UNDRAINED SITUATION. MODIFIERS SHOWN. E.G.. BEDROCK SUBSTRATUM. REFER TO A SPECIFIC SOIL SERIES PHASE FOUND IN SOIL MAP LEGEND. (210-VI-TR-55, Second Ed., June 1986) A-37 Exhibit A-1, continued: Hydrologic soil groups for United States soils SUMYA 0 SWANTOWN. D TACOMA D I TANOUE B I TEHAMA C SUN D SWANVILLE C TACONIC C/D: TANSEM 8 TEHRAN A SUNAPEE 8 SWANW ICK D TACOOS H e/D TANTA LUS B I TEIGEN C SUNBURG 6 SWAPPS C TADLOCK B I TANTILE C/D1 TEJA D SUNBURST C SWARTSWOOD C TAFFOM B I TANWAX D I TEJABE SUNBURY a SWARTZ 0 TAFCYA C I TANWAX. DRAINED' C I TEJANA a SUNCITY D SWASEY D TAFT C I TANYARD C TEKENINK B A SWASTIKA C TAFTOWN B I TAOPI B TEKISON SUNCOOK C SUND C SWAUK D TAFUNA A TAPCO 0 TEKLANIKA A SUNDANCE B I SWAYNE C TAGGART C TAPIA 8 TEKOA C SUNDAY A I SWEATMAN C TAGLAKE 8 TAPICITOES D TEKOA. EXTREMELY SUNDELL 8 1 SWEDE e TAHKENITCH e TAPPAN e/D1 STONY e TARA 8 1 TELA B SUNDOWN A SWEEN C TAHOMA SUNEV 8 SWEENEY 8 TAHOULA D TARBORO A TELCHER 8 SUNFIELD B SWEET C TAHOUATS 8 TARGHEE C TELECAN 8 SUNLIGHT D SWEETAPPLE 8 1 TAINTOR C/D1 TAPKTNGTON C TELEFONO C SUNNYHAY D SWEETGRASS 9 1 TAJO C TARKTO D TELEMON D SUNNYSIDE 8 SWEETWATEP D TAKEUCHI C TARKLIN C TELEPHONE D SUNNYVALE C SWEITBERG C TAKILMA B TARLOC a TELESCOPE A SUNRAY B SWEITING C I TAKOTNA 6 TARNACH 0 1 TELFER A SUNRISE C I SWEM C I TAKPOCHAO D I TARNAV 6 1 TELFERNER D SUNSET B I SWENODA e TALAG D TAPPLEY D I TELL B SUNSHINE C SWIFT 8 TALAMANTES E! TARR A I TELLER B SUNSWEET C SWIFT CREEK 6 TALANTE D TARRANT D I TELLICO 0 SUNUP D f SWIFTON 8 TALAPUS C TARRETE D I TELLMAN B SUNY D I SWIMLEY C TALBOTT C TARRYALL C I TELLURA C SUOMI C swims 8 TALCO D TARRYTOWN C I TELOS C Slip 6 SWINGLER B TALCOT B/Dj TASAYA C I TELSTAD SUPAN 8 SWINGLER. WE T., C TALIHINA D I TASCOSA a I TEMAN 8 SUPERIOR 0 STRONGLY SALINE TALKEETNA e I TASSEL D I TEMBLOR DC SUPERSTITION A SWINGLER, WET C TALLA C I TASSELMAN D I TEMESCAL D .SUPERVISOR C I SWINK 0 TALLAC 8 1 TASSO 8 1 TEMO C SUPPLEE 6 1 SWINOMISH C TALLADEGA C I TATAI C I TEMPLE C SUP C I SWINT e TALLAPOOSA C I TATE 8 1 TEMPLETON a SUPFSIDE D I SWISSOB 0 1 TALLEYVILLE 8 f TATERHEAP 0 1 TEMVIK 8 SURGFM C I SWISSHELM B I TALLOWBOX C TATTYEE C TENABO D SURGH 6 1 SWISSTAG 8 1 TALLS 6 TATLUM D TFNAHA 8 SURNUF 8 SWISSVALE D I TALLULA E TATOUCHE B TENAS C SURPLUS C SWITCH9ACK C TALLY B TATTON D TENCEE D SURPRISE 8 SWITZERLAND 6 TALMAGE B TATUM e --TENDOY D SUPPENCY D SWOPE C T ALl,-,O A TAUNTON C TENERIFFE A SURRETT C SWOPMVILLF C TALMOCN D TAVARES A TENEX E SURVEYORS 8 SWYGEPT C TALOKA D TAWAH B TENINO C SURVYA C SYBLON D TALPA 0 1 TAWAS A/Dj TENMILE C SUSANNA C/Dj SYCAMORE. 8 1 TALOUIN P/01 TAWCAW C TENNO SUSANVILLE D I MODERATELY WET. I TALUCE D I TAYLOR C TENORIO B C SUSIE CREEK C I SALINE I TAMA e I TAYLOR CREEK C TENOT SUS I TNA B SYCAMORE. C I TAMAPA D TAYLORSFLAT B TENPIN 0 SUSQUEHANNA D MODERATELY WET. I TAMALCO D TAYLORSFLAT. C TENRAG 8 SUTA 8 CLAYEY SUBSTRATUM I TAMALPAIS C SALIN5-ALKALI TENSAS SUTCLIFF 8 SYCAMORE, C TAVANEEN e TAYLORSVILLE C TENSED C SUTHER C MODERATELY WET TAMBA 0 TAZLINA A TENSLEEP a SUTHERLAND 0 SYCAMORE. DRAINED B TAMELY 0 TEAGULF C TENSNOIP 08 SUTHERLIN C SYCAMORE. FLOODED C TAMFLAT D TEAKEAN e TENVORRD D SUTKIN 6 SYCAMORE. CLAY 8 TAMFORD D TEALSON 0 TEO a SUTLEY 6 SUBSTRATUM TAMMANY CREEK 8 TFALWHIT 0 TEOCULLI 8 SUTPHEN 0 SYCAN A TAMMING P TEANAWAY B TEPETE D SUTRO C I SYCLE 9 1 TAMP 0 TFAPO C TEOUESTA B D SUTTLER 6 SYCOLINE D I TAMP ICO e TEASDALE 0 TERADA B SUTTON B SYENITE C I ANA M A D TEASPOON D TERBIES B SUVER D SYLACAUGA 0 TANANA D TEBAY E- TERENCE B SUWANEE H SYLCO C TANANA. T4AWED E TFBBS 8 TERFSA D SVEA 5 SYLVAN 6 TANANA. MODERATELY C TESO E TERINO D SVFNSEN P SYLVANIAM C WE I TECHADD D TERLAN 0 SVERDRUP B SYLVESTEk 8 1 TANASEE 8 1 TECHICK 6 TEPLCO 8 SWAGER C SYL V I A C I IANAZZA e TECO e TEPLINGUA 0 SWAINOW B symco C TANBARK 0 TECOLOTE 8 TERMINAL D SWAKANE D SYMEOTON 8 TANDY D TECOMAP 0 TERMO D SWALEP 0 SYNAREP E TAN-=UW E TECOPA D TEROMOTE 8 SWALESILVEP 0 SYRACUSE 8 1 TANEY C I TEDROW B TEROUGE D SWAMPYDPAW B SYPENE B/Dj I ANGA I R C I TEEL 8 TERRA CEIA B/D SWAN D SYPETT C TANGI C I TEELER B TERRA CEIA. TIDAL D SWANBOY D TABECHEDING C TANGLE C TEEMAT 8 1 TERRA CEIA. 0 SWANDAD a TABERNASH B TANNA D TEESTO 0 1 FREQUENTLY SWANLAKE 13 TABLE MOUNTAIN 8 TANNAHILL e TEETERS C FLOODED SWANNER D I TA6LER D I TANNER C TEEWINOT D TERRAD C SWAN-SEA 0 TABOR D I TANNER- LOW D TEFTON C TERRETON D SWANSON C TACAN 8 1 PRECIPITATION TEGuPb D I TERRETON, STONY C SWANTON C/01 I ACH I D I TANOP P TEHACHAPI C I TERPIL a NOTES: TWO HYDROLOGIC SOIL GROUPS SUCH AS B/C INDICATES THE DRAINED/UNDRAINED SITUATION. MODIFIERS SHOWN. E.G.. HEDPOCK SUBSTRATUM, REFER TO A SPECIFIC SOIL SERIES PHASE FOUND IN SOIL MAP LEGEND. A-38 (210-VI-TR-55, Second Ed., June 1986) Exhibit A.1, continued: Hydrologic soil groups for United States soils TERRO C THURLONI C TINT ON A TCLTEC C TORSIDOS D TERRY C THURLOW @B 7 NYTOWN B TOLUCA B TORTUGA D TERT D THURMAN A TIOCANO D TOLVAR B TORULL D TERWILLIGER C THURMO4T 8 TIOGA B TOMAH B TOSCA B TESA j0 B THWOOP C TIPPAH C TOMAHAWK A TOSSER 8 TESSFIVE 0 T;AGOS b T;PPECANOE El TOMALES, D TOSTON C TETHR ICK e T AK C T PPFR C TOMASAK C TOTAVI A TETON C TIBAN B TIPPERARY A TOMAST C TOTELAKE B TETONIA B TIBBITTS 8 TIPPIPAH 8 TOMBAP C TOTEM 6 TETONKA C/11 T19S C TIPpo C TOMBSTONE 8 TOTIEP C TETONVIEW D T13SON 5 TIPT D N B Tome B TOTO B/D TETONVILLE D 71BURONES D TIPTONVILLE 8 TOWEL D TOTTEN C/o TETONVILLE. C TICA D TIPTUP B TOMEPA C TOUCHET C GRAVELLY TICE B TIRO C TOMERA. CEMENTED D TOUHEY B TETOTUM C TICELL D TISEUPY - B SUBSTRATUM TOULA C TEVIS 9 TICHNOR 0 TISCH D TOMICHI A TOULON B TEW C TICINO00 C TISDALE C TO11,0KAF BID: TOURN.U. C TEWA a T CKAP D T SHAR 8 TOMOTL B/D TOURN S T TEX 8 TICKASON B TISONIA D TOWS C I TOURS TEXANA 0 TIDINGS 5 TISWORTH C TOMSHERRY C I TOUTLE A TEXARK D TIDWELL D TITUS E/DI TOMTY 0 1 TOUTLE, FLOODED 8 TEXLINF I T:ERRA D TITUSVILLE C TONALEA C TOYAR C TEXROY B T ERRANEGRE 8 TIVOLI A TONASKET B TOWAVE 8 TEZUMA C TIESIDE D TIVY C TONATA D TOWHEE D THACKER 0 TIETON e T CA e TONCANA B TOWNER 8 THACKERY B TIFFANY V/Dj TCADLAKE B I TONEY D I TOWNLEY C THADER C I IF TON B TOAND B I TONGUE RIVER C I TOWNSEND C THAGE C TIGER CREEK E TOANO E I TONIO B I TOWOSAHGY 8 THATCHER B TIGERON B I TOBICO A/01 TONKA C/D1 TOXAWAY B/D THATUNA C I TIGIT C TGeIN E- TONKAVAR A I TOY D THAYNE 5 TIGIWON B TOEISH C TONKAWA A I TOYAH B THEBES 5 7 IGLE Y B TOELER e. I 7CNKEY B/DI TOYUSKA B THEBO D TIGON D T05OSA C I TONKIN 6 f TOZE a THEDALUND C T ;GUA TCBY e TONKIN. MODERATELY C I TRASUCC C THEEDLE C T JERAS TOCAL C WET I TRACHUTE 8 THENAS C TIKI D TOCALOMA C TONKS C I TRACK D THEODOR 0 TILFER BICI TOCAN 8 1 TONOPAH A I TRACK. DRAINED C THEON F) TILFORD B I TOCCOA a I TONOP C I TRACOSA 0 THERESA B TILLEDA 8 1 T OCK C I TONOWEK B I TRACY a THERIOT D I TILLICUM B I TOCOI 6/01 TONPA 8 1 TRADEDOLLAR B THERMO D I TILLMAN C I TODDLER E I T V@iS I NA E I TRAER B/D THERMOPOLIS D I TILLMONT B I TODOtTAV 0 1 TONTI C f TRAG B THESS 6 1 TILLOU C I TCDDVILLE B I TONUCO D TPAG, COOL C THETFORD A T ILMA C I TODDS C TOOLES D TPAHAM C THETIS 8 TILSIT C TOEHEAD 6 TOOLESBORO 8 TRAIL A THIE FRIVER B/D IILTON C. TOEJA B TOOME5 D TRAILAMP D THIEL B TIMBALIEk D TOEM, C TOONE C TPAILCPEEK C THIESSEN C TI.MeERG C TOGCHA 0 TOONE. LOAMY e TRAILHEAD 8 THIKE D TIMBERHEAD B TOGNONI 0 SUBSTRATUM. STONY TRAINER B THIOKOL I TIMBEPL Y 6 TOGO E TOP C TRAITORS D THIRST D TIMBERVILLE 5 TCGUS D TOPEKI D TRAMPAS C THISTLEBURN S TIMBLIN D TCHONA C TOPEMAN D TRAMWAY 8 THISTLEDEW 8 TIMBUCTOO C yelml C TCPIA D TRANOUILAR C THOENY D I TIMENTWA B I TOINE B TOPLIFF B TRANSYLVANIA B THOMAS B/D1 TIMHILL 0 1 TCISNOT 6/01 TOPONCE C I TRAPPER 8 THOMHILL B I TIMHUS B 7015NOT, RONDED D I TOPPENIS. 0 1 TRAPPIST C THOMS D I TIMKEN D TOIYABE C TOPPENISH, DRAINED C I TRAPPS a THORNBURGH 8 TIMMERMAN 8 TOKAY B TOPPER E TRASK C THORNOALE D T IMMONS a TOKEEN C TOPSEY C TRAVELERS D THORNDIKE C/D1 TIMPAHUTE D I TOKLAT D TOGUERVILLE D TRAVER B THORNOCK D I TIMPANOGOS B I TCYOPER D TOOU I D TRAVERTINE C THORNTON D TIMPANOGOS; C TCKUL C TCQUOP A TRAVESSILLA 0 THOROUGHFARE B HODERATEL WELL T PLA NY 8 1 TCP 0 TRAVIS C THORP C/D DRAINED TOLEY a I I OR BOY A TPAVSON 0 THOV7 C TIMPEP D TOLEDO 0 1 TORCHLIGHT C TRAWICK B THOW 8 TIWULA B T OLE X C. I TOPDIA D I TRAY C THIWION El T INA C TOLKICHA L I TOPEX 8 1 TREADWAY D THRASH B TINAJA B T rL E E' I TORHUNTA C I TREATY B/D THREADGILL 8 TINAMOU C TOLL A TORNEY D I TREBLE 8 THREECHOP 8 TINDAHAY B TOLLGATE B TORNILLO B I TREBLOC D THREEDOT D TINDAHAY. GRAVELLY A TOLLI@OUSE 0 TORNING 8 1 TREBOR C THREEK C TINE A TOLMAN D TOPODA 6 1 TREEKOR D THREEMILE B TINEMAN. B TOLNA E TORONTO C TREEKOR. NONSTONY C THPEETOP C TINEMAN WET C TOLD 8 TORPEDO LAKE D TREEN D THPOCK C T INGEY B TOLONIER 8 TORREON C TREGO C T14ULEPAH C TINKER C TOLSONA D TORREON, COBBLY D TREHAPNE C THUMBERLAND 8 7 INN 0 TOLSONA ' T ILL B TORRES A TPELK 6 THUNDERBIRD D TINNIN A SUBSTRATUM TOPRO 6 TRELONA D THURBER D TINSLEY. A TOLSTC1 D I TORRY B/DI TREMANT B NOTES' TWO HYDROLOGIC SOIL GROUPS SUCH AS B/C INDICATES THE CRAINED/UNDRAINED SITUATION. MODIFIE:?S SHOWN. E.G.. BEDROCK SUBSTRATUM. PEFrP TO A SPECIFIC SOIL SERIES PHASE FOUND IN SOIL MAP LEGEND. (210-VI-TR-55, Second Ed., June 1986) A-39 Exhibit A-1, continued: Hydrologic soil groups for United States soils TREMBLES B TPUSCPEEK B TURSON C UHLAND 8 UTABA TREMBLES C TR'USSEL C TURTONN D UHL I G. 8 UTALINE MODERATELY WET TRUVAR D TUSAYA C UHLOR C UTE D TREMONA C TRYON D TUSCAN D UINTA B UTICA a TREMPE A TSALI C TUSCARAWAS C UKIAH D UTLEY B TREMPEALEAU 0 TSCHICOMA D TUSCAWILLA C ULA C UTSO B TPENAPY 8 TSIRKU C TUSCOLA 8 ULEN 8 UTUADO 8 TRENHOLM D TSOSIE B TUSCOSSO B ULIDA D UVADA D TRENT a TUB C TUSCUMBIA 0 ULLOA 8 UVALDE 6 TRENTON D TUBAC C TUSEL B ULM C UVI B TREON D TUBERET C TUSIP 8 ULPANT 6 UWALA a TREP 5 TUCANNON C TUSK B ULRIC C UWHARRIE B TRES HERMANDS B TUCKAHOE e TUSKAHOMA D ULRICHER 0 UZONA D TPESANO B TUCKER C I TUSKEEGO C/01 ULTRA D I VABEM D TPESED C TUCKERMAN D I TUSLER 0 ULUPALAKUA 8 VABUS C TRESTLE 0 TUCSON B TUSOUITEE 6 ULY 6 VACHERIE C TRETTEN B TUCUMCARI B TUSSY D ULYSSES 0 VADAHO 0 TREVINO D TUFFIT C TUSTELL C UMA A VADER B TREVLAC 8 IUFFO D TUSTIN B UMAPINE D VADNAIS C TREY A TUGHILL D TUSTUMENA e UMAPINE, DRAINED C VADO a I TRIANGLE D TUJUNGA A TUTE 8 UMATILLA 8 VAEDA D TRI86EY C TUKEY C TUTHILL B UMBARG C YAIDEN D TRICON C TUKUHNIK C TUTNI e UMBERLAND D VAILTON 8 TRID C TUKWILA D TUTTLE C UMIAT 0 VAIVA D TRID, NONSTONY 8 TUKWILA. DRAINED C TUTUILLA C UMIKOA e VALBY C TRIDELL 8 TULA C TUTWILER V UMIL D YALCO C TRIGGER D TULANA. DRAINED B TUWEEP 6 UMPA 8 VALCREEK B TRIGO D TULANA, NONFLOODED C TUXEKAN 8 UMPCOOS 0 VALCPEST C TRIMAD 8 TULARE D TWEBA D UMPUMP 8 YALDEZ, CLAYEY D TRIMBLE 3 TULARGO 8 TWEBA. MODERATELY E UNA D SUBSTRATUM TRIMMER C TULAROSA 6 WET UNADILLA 8 VALDEZ, SALINE D TRINIDAD D TULASE B TWEBA. DRAINED C UNAKA a VALDEZ. CLAYEY C TRINITY D TULCH B TWEEDY C UNAKWIK D SUBSTRATUM- TRIO D TULECAN C TWEENER D UNAWEEP 8 SALINE TRIOMAS B TULELAKE D TWICK D UNCAS D VALDEZ. DRAINED C TRIPIT C TULIA B TWIG D UNCOMPAHGRE D VALDOSTA A TRIPLEN B TULIK 8 TWILIGHT 6 UNDERWOOD 6 VALE B TPIPj0LI 5/01 TULLAHASSEE C TWIN CPEEK 8 UNDUSK B VALENCIA B TRIPP B TULLER D TWINING C UNGEPS 6 VALENT A TRISTAN B TULLOCK C TWINSI C UNICOI 8 VALENTINE A TRITON D TULLY C I TWISSELMAN C UNION C VALERA C TRIX 8 TULOSO D I TWISSELMA-4. D UNIONTOWN B VALHALLA A TROCKEN 8 TUMAC B SALINE-ALKALI. UNIONVILLE 8 VALKAPIA B/D TROJAN B TUMALO C WET UNISON 8 VALKARIA. D TROMP C TUMARION 0 TWISSEL4AN. 0 1 UNIUS D DEPRESSIONAL TRONSEN 9 TUMBLETON C SALINE-ALKALI I UNIVEGA D VALLAN D TROOK 8 TUMTUM D I TWOMILE C/Dj UNLIC B I VALLE B TROOK, SALINE C TUNBRIDGE C I TWDTOP D UNSEL B VALLECITOS D TPOPAL D TUNEHILL D TYBO 0 UNSON 8 VALLEONO B TROPIC B TUNICA D TYFE D UPDEGRAFF e VALLERS C TROST D TUNIS D TYGAPT D UPDIKE D VALLEYCITY D TROSKY B/01 TUNITAS C I TYGH C I UPSATA a I VALMAR C TROUGHS 0 1 TUNK A TYLER D I UPSHUP 0 1 VALMONT C TROUP A TUNKHANNOCK A TYNDALL C I UPSON B VALMY B TROUT CREEK C TUNNEL B TYNDALL. DRAINED 8 UPSON. STONY C VALNOR C TROUT RIVER A TUNNISON D TYNER A UPSPRING D VALOIS 8 TROUTDALE C TUOMI 6 TYONEK D UPSTEER B VALPAC C TROUTER C TUPELO D I TYRE A/Dj UPTMOR C I VALSETZ C TROUTVILLE 8 TUPUKNVK D TYRONE C UPTON C I VALTO 0 TROVE a TUOUE B TYSON 8 UPVILLE B VALTON B TROXEL 6 TURBEVILLE C TYZAK D URACCA 8 VALVERDE 8 TRUAX 8 TURBOTVILLE C UANA D URBANA C VAMEP D TRUBLE C TURBYFILL B ueANK B URBO D VAMONT 0 TRUCE C TURK C UBAR D UREAL 0 VAMP C TRUCHOT C TURKEYSPRINGS B UBEHFBE C I UPICH C/D1 VAN DUSEN 8 TRUCKEE C TURLEY 8 UBIK a UPIPNES D VAN HORN 6 TRUCKEE, DRAINED 8 TURLIN B UeLY B UAIPNES. GRAVELLY C VAN NOSTERN C TRUCKTON B TURLOCK D UCHEE A URLAND C VAN WAGONER 0 TRUDAU B TURMOUND D UCOLO D URNE 5 VANAJO D TRUDE A TURNBACK C UCOPIA F. I URNESS B/Dj VANANDA D TRUEFISSUPE B TURNBULL D UDAHO B URSA C I VANBRUNT C TRUESDALE C TURNER B UDEL 0 URSINE D I VANCE C TRUHOY D TUPNERCREST C UDELOPE D UPTAH C VANDA D TRULAE D TURNERVILLE B I VOOLPHO B/D1 UPWIL C VANDALIA D TRULON C TURNEY B UFFENS 6 USAL C VANDAMME 5 TRUMAN a TURRAH C UFFENS. FLOODED C USAL. GRAVELLY B VANDAMbRE a TRUMBULL D TURRET B UGAK D USHAP 8 VANDEPGPIFT C TRUMP D TURRIA B UHALDI B USINE A VANDERHOFF C TRUNK D TURRIA. WET C UHL B USK C VANDERLIP A NOTES: TWO HYDROLOGIC SOIL GROUPS SUCH AS B/C INDICATES THE DRAINED/UNDRAINED SITUATION. MODIFIERS SHOWN. E.G.. BEDROCK SUBSTRATUM. REFER TO A SPECIFIC SOIL SERIES PHASE FOUND IN.SOIL MAP LEGEND. A-40 (210-VI-TR-55, Second Ed., June 1986) Exhibit A-1, continued: Hydrologic soil groups for United Sta tes soils VANEPPS C VERDE C VILLY. DRAINED 8 WABASSO B/D@ WALE %D OVERBLOWN C VANET 0 VERDEL D VILOT C WABASSO. D WALFO B/D VANG 0 VERDICO D VIMVILLE 0 DEPRESSIONAL I WALHALLA B VANGUARD C VERDIGRIS 6 VINA 6 WABBASEKA D WALKE C VANIIETEP C VERDUN D/ VINCENNES C/Dj WABEK A WALKNOLLS D VANNI B VEPENORYE B D VINCENT C I WABEN 6 WALKON C VANNOY C VERGAS C VINCOM C WABUSKA C WALL B VANOCKER a VERGENNES C V;NDICAT 09 D :ACA B WALLACWALLA 8 VANOSS 8 VERHALEN D V NEGARROON C ACAHOOTA D WALLA E 8 YANPETTEN 6 VERICK C V I NE YARD C WACOTA B WALLEN 8 VANIICKLI D VERJITASS B VINGO B I WACOUSTA 8/01 WALLER B/D VANSON 8 VER ELE D VINING C WADAMS 6 1 WALLINGTON C VANSTEL B YEPLAND D VININI D WADDOUPS 8 WALLKILL C/0 VANTAGE VERLOT D VINITA C WADELL B WALLKILL. B/D VANVOR B VERMEJO D VINJE 6 %ADENA B NONFLOODED VANWYPER C VERMILLION C VINLAND D WADENILL B WALLOWA C VANZANOT C VERMISA L' VINSAD C WADER C WALLROCK C VAQUERO D VERNADD D VINSON e WADESPRINGS C WALLSBUPG D VARCO D VERNAL 5 VINT 8 WADLEIGH D WALLSON a VARDEN 8 VERNALIS 0 VINT. WET C WADMALAW D WALLUSKI C VARELUM 8 1 VERNDALE B VINTAS A WADSWORTH C WALNETT C VARELUM, CLAY LOAM C I VEPNIA A VINTON e WAGES B WALONG 8 SUBSTRATUM VERNON D VIOLA 0 WAGNER D WALPOLE C VARGAS VERNONIA B V7PONT C WAGONBOX D WALREES C VARICK D VERO B/Dj VIPATON C WAGONTIRE D WALSH 0 VARINA C VERO, DEPRESSIONAL D I VIRDEN B/Dj WAGRAM A WALSTEAD B VARNA C VERSHIRE C I VIRGELLE C I WAHA C WALTERS B VARNEY I VERSON C VIRGIL B WAHATOYA C WALTERSHOW 0 VARRO a VERTEL 0 V RGIN PEAK D WAHEE D WALTI D VARYSBURG e VERTREES 8 VIRGIN RIVER C WAHGVYHE D WALUM B VA SA B YES 8 VIRKULA C WAHIAWA 8 WALVAN 8 VASHTI C VESEY 8 VIRTUE C WAHIKULI C WALVILLE 8 VASQUEZ C VESPER D VISTA B WAHKEENA 5 1 WAMBA 0 VASSAL30RO D VESSER C V I I A LE C WAHLUKE 8 1 WAMBA. DRAINED C VASSAR 6 VESSILLA D VITZTHUM D WAHOO D WAMDUSKA A VASSETT 6 VESTA 0 VIUDA n WAHPETON C WAMEGO C VASTINE C VESTABURG A/Cl VIUM D I WAHRFKDAM C I WAMIC B VASTINE. D VESTON C I VIVES B WAHSTAL D I WAMPOO D SALINE-ALKALI VETA V' 1 11 WAHTIGUP B I :AMPSVILLE e VAUC LUSE C VETAL '6' V@VXEN 5 WAHTUH D ANAGAN a VAUGHAN D VETEADO C VIZCAIWO D I %AHWEAP D I WANBLEE 0 VAUGHNSVILLE C VEYO D VIZCAPOI1JT C' WAIAHA D WANDA 8 VAY B VIA 8 VLASATY C WAIAKDA C WAN6c A VAYAC D VIAN 8 VLECK D WAIALEALE D WANETTA 8 VEAL B VIBLE A YLY C WAIALUA e WANILLA C VEATCH 6 VIBO B VOATS 5 WAIAWA D WANN B VEATCH. STONY C VleORAS D VOCA C WAIHVNA C I WANNACOTT e VEAZIE n VIBORG Es VODEPMAIER 8 WAIKALOA 8 1 WANOGA 8 VEBAR B VICEE B VOIGHT B WAIKANE B WANOPIE C VECONT D VICK C VOLAVORA B WAIKAPU B WANSER 0 VEEDUM D VICKERY C VOLASH, B WAIK11"O D WANSER, DRAINED B VEET 8 V CKING 6 VOLOOR 0 WAILUKU 8 WAPAL A VEGA C VICKING. DRY 0 vbLC0 D I WAIMEA B I WAPAL. BEDROCK 8 VEGA ALTA 8 1 VICKSBURG B I VOLENTE C I WAINEE B I SUBSTRATUM VEGA BAJA C VICKTON B 1 VOLINIA 8 1 WAINOLA B I WAPAL. BEDROCK B VEKOL, 0 VICTOINE D VOLKMAR B WAIPAHU C SUBSTRATUM VEKOL COOL C V CT R 6 VOLNEY 8 WAISKA 6 WAPATO D VELASCO D VICTORIA D VOLPERIE C WAITS 6 WAPELLO a VELOA B VICTORVILLE B V OL T A 0 WAKE D WAPI D VELOKAMP 0 VICTORY P VOLTAGE B WAKEEN 6 WAPINITIA a VELMA 8 VICU C VOLTAIRE C WAKEFIELD 6 WAPPING B VELOW 8 VIDA C VOLTAIRE, DRAINED C WAKELAND C WAPPINGER B VELVA 6 V JDAUR I D VOLTAIRE, GRAVELLY C WAKEPISH B WAPPO D VENA C VIDRINE G I SUBSTRATUM I WAKITA D I WAPSHILLA B VENABLE D VIEJA 0 VOLUSTA C I WAKONDA 6 1 WAPSIE B VENADITO D VIENNA B VONA e I WAKONDA. TILL C I WAPTUS C VENANGO C I VIEQUES I? VC,NALEE P SUBSTRATUM WARBA B VENAPASS D V:GAR C VONASON, 0 WAKULLA A WARDSOPO A VENATOR C V GIA D VOURHIE C WALCAN C WARDELL C VENETA D VIGNOLD C YORE WALCOTT 5 WARDEN B VENEZIA D VIGO D I VOSSURG B WALDBILLIG B WARDENOT A VENICE C VIGUS B Voss 8 WALDECK C WARDWELL C VENLO 0 VIKING 0 VOSSET 0 WALDEN D WARE 8 ENTRIS 0 VIL 0 VULCAN C WALDO 0 WAREAGLE 8 VENTURE D VILAS A VYLACH D I WALDORF C/D1 WAREHAM C VENUM D VILLA 8 WAAS E I WALDPORT A WARM SPRINGS D V VENUS B VILLA GROVE 8 WABANICA C I WALDRON D WARM SPRINGS. C VERBOORT D VILLEGREEN C WABASH D WALDPOUP D DRAINED. CLAY VERCLIFF C VILLY D WABASHA D WALES 8 SUBSTRATUM NOTES: TWO HYDROLOGIC SOIL GROUPS SUCH AS B/C INDICATES THE DRAINEC/UNCRAINED SITUATION. MODIFIERS SHOWN. E.G.. BEDROCK SUBSTRATUM. REFER TO A SPECIFIC SOIL SERIES PHASE FOUND IN SOIL MAP LEGEND. (210-VI-TR-55, Second Ed., June 1986) A-41 Exhibit A-1, continued: Hydrologic soil groups for United States soils 8 1 WELD C I C I WIBAUX WARM SPRINGS. C WAUPECAN I :ETTERHORN DRAINED. ALKALI WAUQUIE B I WELDA C ETZEL D WICHITA C WARM SPRINGS, C WAURIKA D I WELLER C I WEVERTON 0 WICHUP D DRAINED WAUSEON B/D1 WELLINGTON D I WEWELA 0 WICKAHONEY D WARM SPRINGS. COOL C WAUTOMA B/Dj WELLMAN 8 1 WEWOKA C WICKENSURG 0 WARMAN B/Dj WAVELAND B/Dj WELLS B I WEYERS C/Dj WICKERSHAM WARMAN. GRAVELLY A/Dj WAVELAND. D I WELLSBORO C I WEYMOUTH B I WICKETT C B I WHAKANA B WICKHAM B SUBSOIL DEPRESSIONAL I WELLSCREEK WARNEKE D WAVERLY B/Dj WELLSED C I WHALAN 8 WICKIUP C WARNERS C/D1 WAWASEE 5 1 WELLSTON 6 VHALEY 0 VICKSBURG B WARNOCK B I WAWINA A WELLSVILLE B WHARTON C WICUP WARRENTON D I WAX C WELLTON B WHATCOM C WIDEMAN A WARSAW 8 1 WAXPOOL 0 WELOY C WHATELY D WIDEN C C WARSING e WAYAH B WELPING D I WHEATLEY A/D1 WIDTSOE 8 WARWICK A WAYBE 0 WELSOM D I WHEATRIDGE B I WIEHL C WASA D WAYCUP B WELTER D WHEATVILLE 8 1 WIELAND C WASATCH A WAYDEN 0 WEMPLE 8 WHEELER 8 1 VIERGATE D WASCO 8 WAYLAND C/01 WENAS D WHEELERVILLE 0 WIFFO B WASOA B/Dj WAYMOR B I WENAS. DRAINED C WHEELING 0 WIGGLER 0 WASEPI 8 WAYNECO D I WENATCHEE C WHEELON D WIGGLETON 8 WASHBURN D WAYNESBORO B I WENDANE C I WHETROCK C WIGTON A WASHINGTON 8 WAYNETOWN C I WENDANE. DRAINED 3 WHETSTONE C WILAHA B WASHINGTON. WET C WEA a I WENDOVER D WHICHMAN B I WILBANKS D SUBSTRATUM WEASH C I WENDTE D WHIDBEY C I WILBRAHAM C WASHOE 8 WEATHERFORD B WENONA C WHILPHANG 0 1 WILBUR B WASHOUGAL B WEAVER C WENTWORTH 6 WHIPPANY C I WILBURTON B WASH7ENAW C/Dj WEAVERVILLF B WEOGUFKA C WHIPPLE 0 1 WILCO C WASILLA D WE80 C WEPO C WHIPSTOCK C I WILCOX D 1W I's 10 JA B WEBBRIDGE B WERELD 6 WHIRLO 6 WILCOXSON C WASKISH D WEBOTOWN C WERLOG C WHISKEYDICK C WILOALE C WASKOM C WEBER B WERNER D WHISPERING C WILDCAT D WASPO 0 WEBILE C WERNOCK B WHISTLE 8 WILDERNESS C WASSAIC B WEBSTER B/Dj WESCONNETT D WHIT 0 WILDGEN 8 WASS IT D WEDEKIND D I WESDY C WHITAKER C I WILDHOPSE A WATAS C WEDERTZ B I WESFIL D WHITE HOUSE C I WILDORS C WATAMA C WEDGE A I WESIX D WHITE STORE D I WILDWOOD D WATAUGA 8 WEDLAR C I WESKA D WHITE SWAN D I WILE C WATCHABOB C WEDOWEE 8 WESLEY B WHITECAP D I WILEY 8 WATCHAUG B WEED 8 WESO 8 WHITECLOUD 8 1 WILHITE C/D WATCHUNG D WEEDING 0 WESPAC D WHITECOW B WILHOIT B WATERBURY 0 WEEDMARK 6 WESPAC, SANDY C WHITECROSS 0 WILKES C WATERCANYON 8 WEEKIWACHEE D SUBSTRATUM WHITEFISH e WILKESON a I WATEREE B WEEKS C WESSEL C WHITEFORD 0 WILKINS D WATERMAN D WEEKSVILLE e/01 WESTBROOK D WHITEHALL B WILL B/D WATERTOWN A I WEENA D I WESTBURY C WHITEHILLS C I WILLABY C WATERVILLE 8 1 WEEPAH C I WESTBUTTE C WHITEHDRN D I WILLACY 8 WATKINS 8 1 WEESATCHE 8 1 WESTCAMP C WHITEHORSE 8 1 WILLAKENZIE C WATKINS RIDGE 8 VEGA a I WESTCREEK 8 WHITEKNOB 6 WILLAMAR 8 WATO 9 WEHADKEE D I wESTE C WHITELAKE B WILLAMETTE 8 WATONGA 0 WEIGANG C WESTERVILLE B WHITEMAN D WILLAMETTE. WET C WATOOPAH 8 WEIGLE 0 wESTFORK D WHITEPEAK D WILLANCH D WATROUS 8 1 WEIKERT C/01 WESTHAVEN 8 1 WHITE91VER C I WILLAPA C WATSEKA 8 WEIMER D I WESTHAVEN. C WHITEROCK D WILLARD B WATSON C WEINSACH C SALINE-ALKALI WHITESSORO C WILLETTE A/D WATSONIA D WEINGART, 0 WESTINDIAN C WHITESBURG C WILLHILL C WATSONVILLE D @.EINGARTEN C WESTLAKE D WHITESON D WILLHO D W A I T D WEIR D 'WESTLAND B/Dj WHITESTONE B I WILLIAMS e WATTON C WEIRMAN C WESTMORE C I WHITETHORN 8 1 WILLIAMSBURG B WATUSI C WEIRMAN. WET 0 WESTMORELAND 8 WHITEWATER D I WILLIAMSON C WAUBAY B WEIRMAN. A WESTON D WHITEWOLF A I WILLIAMSPORT C WAUBEEK 8 NONFLOODED WESTOVER B I WHITEWOOD C/01 WILLIAMSTOWN C WAUBERG D WEISBURG C WESTPHALIA B I WHITEWODD. 8/01 WILLIAMSVILLE C WAUBONSIE 5 WEISER B WESTPLAIN D NONFLOODED I WILLIMAN 8/0 WAUCEDAH D WEISHAUPT D WESTPORT A WHITEWRIGHT C I WILLIS C WAUCHULA B/Dj WEISSENFELS C I WESTPORT, THIN B WHITING 8 1 WILLISTON C WAVCHULA. D I WEITAS 8 1 SURFACE WHITINGER C I WILLOW CREEK a DEPRESSIONAL I WEITCHPEC C I WESTSHORE D WHITLEY 8 1 WILLOWDALE B WAUCOBA 0 1 WEKODA D I WESTVACO C I WHITLOCK B I WILLOWEMOC C WAVCOMA 5 1 WELAKA A WESTVIEW e WHITMAN D WILLOWMAN B WAUCONDA 8 1 WEL13Y 5 WESTVILLE B WHITNEY C WILLOWS 0 WAUKEE 8 1 WELCH D WESTWEGO D WHITORE E WILLWOOD A WAUKEGAN B I WELCH, GPAVELLY 8 WESVIND C WHITSOL 5 WILMA a WAUKENA D SUBSTRATUM. WESWOOD B WHITSON D WILMER C WAUKON a DRAINED WETA D WHITTIER B WILMINGTON D WAULD C WELCH. RARELY 8 WETHERSFIELD C WHITWELL C WILMONT a WAUMAC B FLOODED. DRAINED WETHEY C WHOBREY C VILMONTON B WAUMBEK 8 WELCH. DRAINED C WETHEY, DRAINED A WHOLAN 8 WILPAR C WAVNA C WELCHLAND a I WETMORE D WHORLED C WILPOINT 0 WAUPACA 8/Dj WELCOME 0 1 WETSAW C I WHY 8 WILSHIRE A NOTES: TWO HYDROLOGIC SOIL GROUPS SUCH AS B/C INDICATES THE ORAINED/UNDRAINED SITUATION. MODIFIERS SHOWN. E.G.. BEDROCK SUBSTRATUM. REFER TO A SPECIFIC SOIL SERIES PHASE FOUND IN SOIL MAP LEGEND. A-42 (210-VI-TR-55, Second Ed., June 1986) Exhibit A-1, continued: Hydrologic soil groups for United States soils : LSON D W'ISHARD C WOODS CROSS D WYNOOSE D YEGEN B ;LSONGULCH B WISHBONE B WOODSEYE D WYOCENA B YEGUAS C WILSONVILLE D :ISHEYLU C WCCDSFIELD C WYOMING A YELJACK B WILSOR 8 ISHKAH D WOODSIDE 0 WYRENE 0 YELLOWBAY B WILST C WISHKAH. DRAINED C WOODSLAKE D WYSOCKING CIDI YELLOWHOUND B 11, LTON a WISKAN C WOODSON D XANA e YELLOWROCK A .INADA C W SKIFLAT 8 1 WOODSTOCK C/Dj XANADU b I YELLOWSTONE D WINBERRY C WISNER B/Dj WOODSTOW4 C I XAVIER B I YELM C WINCHESTER A WISTER C I WOODTELL D I XENIA B I YEMASSEE C WINCHUCK C WITSECK 8/D1 WOODVILLE 0 1 XENO 5 f YENCE C WIND RIVER 8 W;TEFELS B I WOODWARD B XERTA C I YENLO 6 WINDCOAT D W THAM D I WOODWEST 1) XERXES 0 YENPAB A WINDER B/Dj WITHEE C I WOOFUS 0 XICA C YEOMAN WINDER. D I WITHERBEE A/D1 WOOLPER C I XINE C YEOPIH DEPRESSIONAL WITHEPELL D I WOOLSEY 0 1 XIPE D YEPINGTON A WINDHAM 0 WITHERS C I WOOLSTALF 5 1 XIPE. MODERATELY C YERMO 8 WINDICREEK A WITT B I WOOLSTED 0 1 WET YESUM 8 WINDMILL B WITTEN D I WOONSOCKET 8 1 XHAN D YETTEM 13 WINDSOR A WITTENBERG B I WOOSLEY C I YACOLT B YETULL A WINDTHORST C WITZEL D I WOOSTER C I YAGO C YIGO WINOWHISTLE C WIX C WORCESTER C I YAHANA C YIPOR WINDWHISTLE. WARM 5 WIXOM 9 WORDEN C YAHARA C YLIG C WINDY 8 WOCKLEY C WOPF D YAHNE C YOBE C WINDYPOINT 8 WODA D WORFKA D YAHOLA B YOCHUM C WINEG B WODEN 8 WORFMAN D YAHOO D YOCKEY WINEMA C WODSKOW C WORFSTONE C YAINAX B YODER WINETTI B WODSKOW. DRAINED 8 WORK C YAKI D YODY C W I NEV AD A C W OHL Y 11 WORK, GRAVELLY 11 YAKIMA 5 YOHUPT D WINFALL 6 WOLCO C WORLAND C I YAKUS D YOKAYD 1) WINFIELD a WOLCOTT e/01 WORLEY D I YAKUTAT A YOKOHL 0 WING D WOLDALE D I WORMSER C I YALELAKE B I YOKUT B WINGATE B WOLDALE, DRAINED C I WOPOCK 6 1 YALESVILLE C I YOLLABOLLY WINGER B/Dj WOLF 8 1 WORSHAM D I YALLANI 8 1 YOLO WINGINAW D :OLFCPOINT C WORTH C YALMER 6 YDLOGO W NGVILLE D OLF REEK a WORTHEN B YAMAC B YOMBA WINIFRED C WOLFESON C WORTHING D YAMHILL C YOMONT WINK B WOLFESON. WET D WCPTMAN 0 YAMO 8 YONGES WINKEL D WOLFEY C WORTMAN. SANDY A YAMSAY D YONNA D WINKLEMAN C WOLFPEN A WOVOKA 0 YANA 6 YOPBA 0 INKLEMAN, WET 0 WOLFTEVER" C WRANGELL D YANCY D YORK C WINKLER 8 WOLLARD C WRANGO A YANKEE D YORKTOWN D WINLER 0 WOLLENT 0 WPAYHA 0 YANKTON B YOPKTREE C WINLO D WOLOT 8 WREDAH 8 YANUSH 0 YORKVILLE 0 WINN C WOLVERINE A WPENCOE D YAP 8 YOST D WINNEBAGO B WOMACK C WRENMAN C YAPOAH 8 YOST, DRAINED C WINNECONNE C woo e WRENTHAM C YAQUI B YOUD D WINNECOOK C WOO. OVERWASH C WRIGHT C YAQUINA D YOUGA a WINNFMUCCA 6 WOO. WET C WPIGHTMAN C YAQUINA. DRAINED C YOVGA. SANDY D WINNESHIEK 8 WOOD RIVER 0 1 WRIGHTSBORO C YAPCO D SUBSTRATUM WINNETT 0 WOODBECK B WRIGHTSVILLE D YArDLEY C YOUJAY D INNSBORO D WOODB INE 6 WRIGHTWOOD E- YAPTS B YOUMAN C WINON D WOODBRIDGE C WUKOKI B YATAHONEY C YOUNGSTON B WINONA D WOODBURN C WUKSI A YATAHONEY. STONY D YC)VNGsTbN. WET C W WINOOSKI 8 WOODBURY D WULFERT D YATES D I YOURAME WINOPEE B WOODCOCK B WUNJEY 8 YAUCO C I YOUTLKUE WINRIDGE D WOODFORD D WUPATKI D YAUHANNAH 6 1 YOVIMPA D WINSHIP C WOODGULCH A WURNO C YAUPON D YPSI C WINSPECT 8 WOODHALL C WURSTEN 8 YAW01M D YPIBAPREN 1) WINSTON 8 WOODHURST C WUPTSBORO C YAWHEE 8 YSIDORA C WINT D WOODIN C I WYALUSING D YAWKEY 8 YTURBIDE A WINTERFIELD A/Dj WOODINGTON B/Dj WYANDOTTE D YAXON B YTUPP I A A WINTERHAVEN 8 :OOD;NVILLE, D WYANT C YEAGER A YUBA 0 WINTEPIDGE B DOD NVILLE C WYAPD B YEAPY C YUKO 0 WINTERS C DRAINED WYARNO 6 YEATES HOLLOW B YUKON D WINTERSOURG C WOODLAWN B WYATT C YEATES HOLLOW, C I YULEE D WINTEPSET C WOODLEAF C WYCOLO C LOAMY SUBSTRATUM. YUNES D WINTHROP A WOODLY a WYE B STONY YUNOVE C WINTLEY 0 WOODLYNS D WYEAST D YEATES HOLLOW. C YURM 0 W NTON C WOODMAN IE B WYETH 8 LOAMY SUBSTRATUM YUTRUE D WINTONER 8 WOODMERE e WYEVILLF C YEATES HOLLOW, C I YUVAS 1) WINU C WOODMONT C WYICK D STONY I ZAAP D WINZ D WOODPASS r. WYKEHAM B YEATES HOLLOW. C I ZABA a WIDTA B I WOODPOCK C WYKCFF 6 NONSTONY ZACA 0 1PPLE C I WOODROW 8 WYMAN P I YEATES HOLLOW, DRY C ZACHARIAS a WIRT 8 1 WOODROW, C I WYMORE D I YEATES HOLLOW. C ZACHARY C WISCOW 0 1 SALINE-ALKALI I WYNDMERE 5 1 COBBLY ZACK 0 WISE C WOODROW. C I WYNN 0 1 YEATON C ZADOG A/D WISEMAN A OCCASIONALLY WYNNVILLE C YECROSS A ZADVAR D WISFLAT D FLOODED WYNONA C YEDLICK B ZAFRA NOTES: TWO HYDROLOGIC SOIL GROUPS SUCH AS B/C INDICATES THE DRAINED/UNDRAINED SITUATION. MODIFIERS SHOWN. E.G.. BEDROCK SUBSTRATUM. REFER TO A SPECIFIC SOIL SERIES PHASE FOUND IN SOIL MAP LEGEND. (210-VI-TR-0-5, Second Ed., June 1986) A-43 Exhibit A-1, continued: Hydrologic soil groups for United States Soils ZAGG C ZOHNER D ZAHILL C ZOLA ZAH L a ZOLFO CC ZAIDY C ZOLTAY C ZAKME D ZOOK C-1D ZALCO A ZOOK. SILTY C ZALDA D SUBSTRATUM ZALLA A ZO RAVI D ZAMORA a ZORRRA STA A ZAMSCAN B ZO YER D ZANBUP 6 ZURER C ZANE 8 ZUFELT C ZANEIS 11 ZUKA" D ZANESVILLE C ZULCH 0 ZANGO D ZUMAN D ZAPA C ZUMAN, PROTECTED C/Dj ZAPATA C ZUMBRO A ZARK C ZUMWALT C ZATOVILLE C ZUNDELL C ZAU C ZVNHALL C ZAVALA B ZUNI 0 ZAVCO C ZURICH B ZAYANTE A ZWICKER C ZAZA D I ZWIEFEL C ZEALE 8 ZWINGLE 0 ZEB B ZYGORE e ZEBA B ZYME 0 ZECANYON C ZYMER B ZEEBAP B ZYNBAR 6 ZEEKA C ZYNB&R, TILL C ZEELNOT B SUBSTRATUM ZEESIX C ZYPLAq D ZEGRO C ZYZYL 5 ZEIBPIGHT 0 ZYZZI D ZELL 8 ZYZZUG 0 ZEN C ZENDA C ZENI C ZENIFF 6 ZENITH 3 ZENKER ZENOD B8 ZENOP e ZENORIA C ZEOMCNT A ZEONA A ZEDRELY a ZEPHAN C ZEPHYR D ZEPP 8 ZER ZERK ZERKEP a ZEVADEZ C ZIA a ZIBATE D ZIEGENFUSS 0 ZIEGLER C ZIGWEJD B ZILABUY D ZILLAH D ZILLAH. DRAINED C ZILLION B Z I LLM AN a ZIMMERMAN A ZINEe a ZING C ZINZER 3 ZINZER, SALINE C ZION C ZIPP 0 ZIPPEL 8 ZIRAM D ZITA B Z I T T A V C ZOAR C ZOATE D ZOE D ZOESTA 0 NOTES: TWO HYDROLOGIC SOIL GROUPS SUCH AS e/C INDICATES THE DPAINED/UNDPAINED SITUATION. MODIFIERS SHOWN, E.G.. BEDPOCK SUBSTRATUM. REFER TO A SPECIFIC SOIL SERIES PHASE FOUND IN SOIL MAP LEGEND. A-44 (210-VI-TR-55, Second Ed., June 1986) Appendix B: Synthetic rainfall distributions and rainfall data sources The highest peak discharges from small watersheds in the United States are usually caused by intense, 1.0 brief rainfalls that may occur as distinct events or as part of a longer storm. These intense rainstorms do not usually extend over a large area and intensities vary greatly. One common practice in rainfall-runoff analysis is to develop a synthetic rainfall distribution to use in lieu of actual storm events, This distribution includes maximum rainfall intensities for 0.5 - the selected design frequency arranged in a sequence I A that is critical for producing peak runoff. Synthetic rainfall distributions 0.0 0 3 6 9 11 1 Ll I Ll 2'@ 2'1 The length of the most intense rainfall period T i h . . . . contributing to the peak runoff rate is related to the Figure B-L-SCS 24-hour rainfall distributions. time of concentration (T.) for the watershed. In a hydrograph created with SCS procedures, the duration of rainfall that directly contributes lo the peak is about 170 percent of the T, For example, the most intense 8.5-minute rainfall period would The intensity of rainfall varies considerably during a contribute to the peak discharge for a watershed storm as well as over geographic regions. To with a T, of 5 minutes; the most intense 8.5-hour represent various regions of the United States, SCS period would contribute to the peak for a watershed developed four synthetic 24-hour rainfall distributions with a 5-hour Tc. (1, IA, 11, and III) from available National Weather Service (NWS) duration-frequency data (Hershfield Different rainfall distributions can be developed for 1961; Frederick et al., 1977) or local storm data. each of these watersheds to emphasize the critical Type IA is the least intense and type 11 the most rainfall duration for the peak discharges. However, intense short duration rainfall. The.four distributions to avoid the use of a different set of rainfall are shown in figure B-1, and figure B-2 shows their intensities for each drainage area size, a set of approximate geographic boundaries. synthetic rainfall distributions having "nested" rainfall intensities was developed. The set .. Types I and IA represent the Pacific maritime "maximizes" the rainfall intensities by incorporating climate with wet winters and dry summers. Type III selected short duration intensities within those represents Gulf of Mexico and Atlantic coastal areas needed for longer durations at the same probability where tropical storms bring large 24-hour rainfall level. amounts. Type II represents the rest of the country. For more precise distribution boundaries in a state For the size of the drainage areas for which SCS having more than one type, contact the SCS State usually provides assistance, a storm period of 24 Conservation Engineer. hours was chosen for the synthetic rainfall distributions. The 24-hour storm, while longer than that needed to determine peaks for these drainage areas, is appropriate for determining runoff volumes. Therefore, a single storm duration and associated synthetic rainfall distribution can be used to represent not only the peak discharges but also the runoff volumes for a range of drainage area sizes. (210-VI-TR-55, Second Ed., June 1986) B-1 @\N Re nf Distr-ib @7j 46 z Fig'ure B-Z.-ApPrOximate geographic boundaries for ZSCS rainfa)) distributions. Rainfall data sources Hawaii Weather Bureau. 1962. Rainfall-frequency atlas of the This section lists the most current 24-hour rainfall Hawaiian Islands for areas to 200 square miles, data published by the National Weather Service durations to 24 hours and return periods from 1 to (NWS) for various parts of the country. Because 100'years. U.S. Dep. Commerce, Weather Bur. Tech. NWS Technical Paper 40 (TP-40) is out of print, the Pap. No. 43. Washington, DC. 60 p. 24-hour rainfall maps for areas east of the 105th meridian are included here as figures B-3 through B-8. For the area generally west of the 105th Puerto Rico and Virgin Islands meridian, TP-40 has been superseded by NOAA Atlas 2, the Precipitation-Frequency Atlas of the Weather Bureau. 1961. Generalized estimates of Western United States, published by the National probable maximum precipitation and rainfall- Oceanic and Atmospheric Administration. frequency data for Puerto Rico and Virgin Islands for areas to 400 square miles, durations to 24 hours, and return periods from I to 100 years. U.S. Dep. East of 105th meridian Commerce, Weather Bur. Tech. Pap. No. 42. Hershfield, D. M. 1961. Rainfall frequency atlas of Washington, DC. 94 p. the United States for durations from 30 minutes to 24 hours and return periods from 1 to 100 years. U.S. Dep. Commerce, Weather Bur. Tech. Pap. No. 40. Washington, DC. 115 p. West of 105th meridian Miller, J.F., R.H. Frederick, and R.J. Tracey. 1973. Precipitation-frequency atlas of the Western United States. Vol. 1, Montana; Vol. II, Wyoming; Vol. III, Colorado; Vol. IV, New Mexico; Vol. V, Idaho; Vol. VI, Utah; Vol. VII, Nevada; Vol. VIII, Arizona; Vol. IX, Washington; Vol. X, Oregon; Vol. XI, California. U.S. Dep. Commerce, National Weather Service, 'NOAA Atlas 2. Silver Spring, MD. Alaska Miller, John F. 1963. Probable maximum precipitation and rainfall-frequency data for Alaska for areas to 400 square miles, durations to 24 hours and return periods from 1 to 100 years. U.S. Dep. Commerce, Weather Bur. Tech. Pap. No. 47. Washington, DC. 69 p. (210-VI-TR-55, Second Ed., June 1986) B-3 2-YEAk, 24-HOUR RAINFALL (INCHES) 2 2 T tPIT J L-TA 11 L -14 1 4A, --l J Lr LJ- @o T, L Z- -4 1 L(711 V@ 2 iy, e-iA -j- tf--, 1 4 -4 1 r J-6 M Oo -- ----- 6 4) 2 *5.5 2.5 3. \4 Z C -- -------- F, y 0 100 200 300 400 MI ALBERS EQUAL AREA PROJECTION 4 - --- --- 4. Z5:,, STANDARD PARALLELS 25- AND 45- [email protected]@ar, @r raim W 10-YEA 24-HOUR RAINFALL@ (INCHES) 3 j-jL jnt V7 C) AS I 1 1 -7 , / "' yj ------ - -- JJ, --- ------- V F, jj -A FT c--4 4-4 (D th 00 3 61 0 3.5 10 4 6 0 C U F 0 100 200 300 400 MI 7 ALBERS EQUAL AREA PROJECTION STANDARD PARALLELS 25* AND 45' -------- - - 8- Figure B-5-Ten-year, 24-bour rainfall. 5-YEAR 24-HOUR RAINFALL @(INCH ES) 2.5 4-1 -41 T@ Ilk I IN '2 ---- '416 P@- 6-t 7 1 T 0 4- FL (D 775 8.5 8 4.5 3.5 8 &5 5 I 7 0 100 200 300 400 MI 6.5 55 ALBERS EQUAL AREA PROJECTION 6 STANDARD PARALLELS 25' AND 45- .5 Figure B-4.-Five-year, 24-hoUr rainfall. 25-YEA@ 24-HOURI RAINFALWINCHES) j f 3.5 1- 3.5 'T' 4 4 'Li '_,IJ r"D c) QAA 4 k"A L L L C t7i < 00 3 4 .4 1 4 12 5 7 0 0 U L F 0 c 0 100 200 300 400 MI 8 ALBERS EQUAL AREA PROJECTION i 9 STANDARD PARALLELS 25' AND 45' Figure B-6.-Twenty-five-year, 24-hour rainfall. 50-YEA@ 24-HOU411 RAINFALU (INCHES) 1 4 'T 5' j , @@ I i - I -; 11 1?" 4 L -j L " 44S/2 @A 171 M 0 c--4 E- M 00 4 13 I4@5 6 2 13 A t F 0 F 0 1?, 2?0 3@O 400MI 16 9 ALBERS EQUAL AREA PROJECTION 1 1 STANDARD PARALLELS 25* AND 45* -4 Figure B-7.-Fifty-year, 24-hour rainfall. 100-YEA 24-HOU@ RAINFALt (INCHES)'I 4 1 j -F- L +L -TL- J I Y-- i T-f-T T 'I- @2, @v -11 Attf @S -9-OR-41 171 r H-3 CD --,--L ZJL CL If f (D Ld 00 14 14 6 16 13 9 12 U L 0 100 200 3?0 400 MI 10 ALBERS EQUAL AREA PROjECTION STANDARD PARALLELS 25* AND 45* Figure B-8.-One-hundred-year, 24-hour rainfall. Appendix C: Compute r program The TR-55 procedures have been incorporated in a computer program. The program, written in BASIC, requires less than 256K memory to operate and was developed for an MS-DOS operating system. Users of the program, however, still need to be familiar with the procedures in this TR. Features of the program include the following: The full screen (24 lines, 80 columns) is used to enter data. Flexibility of coding allows movement about the screen for quick data modifications. Function keys provide menu power to move to different modules (TR-55 chapters) within the program. Some keys are permanently defined while others vary by module. 11 Help" screens provide pertinent information to the user depending on location in the program. Two types of information are included: (1) define system operation and (2) describe input parameters. User files provide for optional entry of local data, such as rainfall-frequency, graphic peak discharge equation coefficients, and tabular hydrographs for other rainfall distributions. Copies of the program can be obtained from- National Technical Information Service U.S. Department of Commerce 5285 Port Royal Road Springfield, VA 22161 Telephone (703) 487-4650 (210-VI-TR-55, Second Ed., June 1986) C-1 Appendix D: Worksheets This appendix contains seven worksheets that can be reproduced for use Aith chapters 2 through 6. There l S no worksheet for chapter 1. Chapter Worksheet 2 2 3 3 4 4 5 5a, 5b 6 6a, 6b (210-VI-TR-55, Second Ed., June 1986) D-1 Worksheet 2: Runoff curve number and runoff Project By Date Location Checked Date Circle one: Present Developed 1. Runoff curve number (CN) Soil name Cover descr iption I/ Area Product and CN - of hydrologic (cover type, treatment, and CIJM CN x area hydrologic condition; 1 0 acres group 114 f percent impervious; 13 mi2 unconnected/connected impervious n 1@ @O 0% (appendix A) area ratio) Cz H r4 H P4 44 Use only one CN source per line. Totals = totalproduct CN (weighted) = total area Use CN = 2. Runoff storm #1 Storm #2 Storm #3 Frequency .............................. yr Rainfall, P (24-hour) .................. in Runoff, Q .............................. in (Use P and CN with table 2-1, fig. 2-1, or eqs. 2-3 and 2-4.) D-2 (210-VI-TR-55, Second Ed., June 1986) Worksheet 3: Time of concentration (Tc) or travel time (Tt) Project By Date Location Checked Date Circle one: Present Developed Circle one: Tc Ttthrough subarea NOTES: Space for as many as two segments per flow type can be used for each worksheet.. Include a map, schematic, or description of flow segments. Sheet flow (Applicable to T c only) Segment ID I . Surface description (table 3-1) ............ 2. Manning's roughness coeff., n (table 3-1) 3. Flow length, L (total L < 300 ft) .......... ft 4. Two-yr 24-hr rainfall, P 2 ................... in 5. Land slope, s .............................. ft/ft 0.007 (nL) 0.8 Compute Tt ...... r + 6. Tt P0.5 0.4 h Shallow concentrated flow Segment ID 7. Surface description (paved or unpaved) 8. Flow length, L ............................. ft 9. Watercourse slope, s ....................... ft/ft 10. Average velocity, V (figure 3-1) ........... ft/s 11. Tt L Compute T ...... hr + 3600 V t Channel flow Segment ID 12. Cross sectional flow area, a ............... ft2 13. Wetted perimeter, p w ....................... ft 14. Hydraulic radius, r = pa Compute r ....... ft w 15. Channel slope, s ........................... ft/ft 16. Manning's roughness coeff., n .............. 17. V = 1.49 r 2/3 s1/2 n - Compute V ....... ft/s 18. Flow length, L ............................. ft 19. T L Compute T t ...... hr + t =-@600 V 20. Watershed or subarea T c or Tt (add T t in steps 6, 11, and 19) (210-VI-TR-55, Second Ed., June 1986) D-3 Worksheet 4: Graphical Peak Discharge method Project By* Date Location Checked Date Circle one: Present Developed 1. Data: Drainage area .......... A m = mi2 (acres/640) Runoff curve number .... CN= (From worksheet 2) Time of concentration .. Tc = hr (From worksheet 3) Rainfall distribution type = (1, IA, II, III) Pond and swamp areas spread 2 throughout watershed ...... = percent of A m acres or mi covered) 2. Frequency ............................... yr Storm #1 Storm #2 Storm #3 3. Rainfall, P (24-hour) ................... in 4. Initial abstraction, I a ................. in (Use CN with table 4-1.) 5. Compute I a/P ............................ 6. Unit peak discharge, q u ................. csm/in (Use T c and I a P with exhibit 4- 7. Runoff, Q ............................... in (From worksheet 2). 8. Pond and swamp adjustment fact.or, F p .... (Use percent pond and swamp area with table 4-2. Factor is 1.0 for zero percent pond and swamp area.) 9. Peak discharge, q p ...................... cfs (Where qp = q uAmQFp D-4 (210-VI-TR-55, Second Ed., June 1986) Worksheet *5a: Basic watershed data Location By Date Project Checked Date Circle one: Present Developed Frequency (yr) Initial SubaIrea Drainage Time of Travel Downstream Travel 24-hr Runoff Run abstrac- name area concen- time subarea time Rain- curve off tion tration through names summation fall number subarea to outlet /P Am T T ET t P CN Q m a a c t 2_ (hr) (in) (in) (mi in) (in) (mi 2 (hr) (hr) 3 Cn 00 t t t t t t t t t f + t t t t t t t t t t From worksheet 2 From table 5-1 From worksheet 3 Worksheet 5b: Tabular hydrograph discharge summary Project Location By Date Circle one: Present Developed Frequency (yr) Checked Date Basic watershed data used Select and enter hydrograp times in hours from exhibit, 5- 1/ 1 name area to I I I T_ Subarea Sub- ZTt AMQ Tc outlet 2 Discharges at selected hydrograph tiries 3/ (hr) (hr) (mi -in) - - - - - - - - - - - - - - - - - - - (cfs) - - - - - - - - - - - - - - - - - - - - - 0 00 Composite hydrograph at outlet Worksheet Sa. Rounded as needed for use with exhibit S. 2/ Enter rainfall distribution type used. 2-1 Hydrograph discharge for selected times is A mQ multiplied by tabular discharge from appropriate exhibit 5. 6 D t tion basin storage, ,Worksheel a: e en peak outflow discharge (qo) known Project By Date Location Checked Date Circle one: Present Developed ---------- --- ------- Q) - - - - - - - -- -------- --------- 0 0 -- --------- -------- L TT - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - --- - ITTT-r III J I TF L F L Detention basin storage V 2 6. . ........ 1. Data: V ........ Drainage area ....... Am mi r 0 Rainfall distribution (Us e L with figure 6-1) type (1, IA, II, III) q i 7. Runoff, Q ...... in 1st 2nd (From worksheet 2) stage stage 8. Runoff volume, Vr .......... ac-ftl I 2. Frequency ...... yri (V r = QAm53.33) 3. Peak inflow dis- 9. Storage volume, charge, qi .... cfsl I Vs .......... ac-ftl I (From worksheet 4 or 5b) V (Vs = V r (V-2-) 4. Peak outflow dis- r charge, qo .... cfs1 1 10. Maximum stage, E maxi (From plot) 5. Compute 0 ........ q 2nd stage q. includes 1st stage qo. -_ ml_ (210-VI-TR-55, Second Ed., June 1986) D-7 Worksheet 6b: Detention basin peak outflow, storage volume (V,) known Pro ject By Date Location Checked Date Circle one: Present Developed @il:llj Jill: 4J 0 0 4-1 cl ,4 Detention basin storage Vs 1. Data: 2 6. Compute -@ . ........ Drainage area ....... Am mi r Rainfall distribution type (I, IA, II, 111) 7. q0 ............. ini qi V Ist (Use V2@and figure 6-1) stage r 8. Peak inflow dis- 2. Frequency ...... yr charge, qi .... Cfs (From worksheet 4 or 5b) 3. Storage volume, V S .......... ac ftl 1 1 9. Peak outflow dis- charge, qo .... cfs1 4. Runoff, Q ....... in q0 (From worksheet 2) No = qi( q 5. Runoff volume, V r .. ac-ftl I 1 10. Maximum stage, E maxi (V **'Q'A*';;.33) (From plot) r m 2nd stage q0 includes Ist stage qo. 41 D-8 (210-VI-TR-55, Second Ed., June 1986) Appendix E: References Brakensiek, D.L. and W.J. Rawls. 1982. Green-Ampt Rallison, R.E. and N. Miller. 1981. Past, present, and infiltration model parameters for hydrologic future SCS runoff procedure. liz V.P. Singh (ed.) classification of soils. In John Borrelli, Victor R. Rainfall-Runoff Relationships: Proceedings, Hasfurther, and Robert D. Burman (ed.) Advances in International Symposium on Rainfall-Runoff Irrigation and Drainage Surviving External Modeling. Mississippi State University. p. 353-364. Pressures. Proceedings of Am. Soc. Civ. Eng. specialty conference. NewYork, NY. p. 226-233. Rawls, W.J., A. Shalaby, and R.H. McCuen. 1981. Evaluation of methods for determining urban runoff Chow, V.T. 1959. Open channel hydraulics. McGraw- curve numbers. Transactions of the American Society Hill Book Company, Inc. New York, NY.- p. 109-113. of Agricultural Engineers 24 (6):1562-1566. Comer, G.H., F.D. Theurer, and H.H Richardson. Soil Conservation Service. 1982 [Draft]. Structure 1981. The Modified Attenuation-Kinematic (Att-Kin) site analysis computer program DAMS2 (interim routing model. In V.P. Singh (ed.) Rainfall-Runoff version). SCS Technical Release 48. Washington, DC. Relationships: Proceedings, International Symposium on Rainfall-Runoff Modeling. Mississippi State 1983 [Draft]. Computer program for project University. p.553-564. formulation-hydrology. SCS Technical Release 20. Washington, DC. Engman, E.T. 1986. Roughness coefficients for routing surface runoff. Journal of Irrigation and 1985. Nationale 'ngineering handbook. Section Drainage Engineering 112 (1): 39-53. 4-Hydrology. Washington, DC. Frederick, R.H., V.A. Myers, and E.P. Auciello. 1977. Five to 60 minute precipitation frequency for the Eastern and Central United States. U.S. Dep. Commerce, National Weather Service, National Oceanic and Atmospheric Administration Tech. Memo NWS HYDRO 35. Silver Spring, MD. 36 p. Hershfield, D.M. 1961. Rainfall frequency atlas of the United States for durations from 30 minutes to 24 hours and return periods from 1 to 100 years. U.S. Dep. Commerce, Weather Bur. Tech. Pap. No. 40. Washington, DC. 115 p. Linsley, R.K., M.A. Kohler, and J.L.H. Paulhus. 1982. Hydrology for engineers. Third Edition. McGraw-Hill Book Company, Inc. New York, NY. p.' 484. Musgrave, G.W. 1955. How much of the rain enters the soil? In Water. The Yearbook of Agriculture 1955. U.S. Dep. Agric. U.S. Gov. Print. Off. Washington, DC. p. 151-159. Overton, D.E. and M.E. Meadows. 1976. Storm water modeling. Academic Press. New York, NY. p. 58-88. (210-VI-TR-55, Second Ed., June 1986) E-1 Appendix F: Equations for figures and exhibits This appendix presents the equations used in where procedure applications to generate figures and exhibits in TR-55. V = average velocity (ft/s), and s = slope of hydraulic grade line (watercourse slope, ft/ft). Figure 2-1 (runoff equation): These two equations are based on the solution of 0 2 Manning's equation (Eq. 3-4) with different IP - 0.200' -10)] assumptions for n (Manning's roughness coefficient) Q @CN and r (hydraulic radius, ft). For unpaved areas, n is P + 0.8 -000 10 0.05 and r is 0.4; for paved areas, n is 0.025 and r is 7 G N 0.2. where Exhibit 4 (unit peak discharges for SCS type 1, IA, Q = runoff (in), 11, and III distributions): P =rainfall (in), and CN = runoff curve number. log(qu) = Co + C, log(T,) + C2 Dog(T,)]2 where Figure 2-3 (composite CN with connected impervious area): qu = unit peak discharge (csm/in), T, = time of concentration (hr) CN, = CNP + (Pimp/10OX98 - CNp) (minimum, 0.1; maximum, 10.0), and where CO, C1, C2 = coefficients from table F-1. CN, = composite runoff curve number, CNp = pervious runoff curve number, and Figure 6-1 (approximate detention basin routing Pi,np = percent imperviousness. through single- and multiple-stage structures for 24-hour rainfalls of the indicated t ype): Figure 2-4 (composite CN with unconnected Vs/V,. = Co + C1 (qo/qi) + C2 (qo/qi)2 + C3 (qo/qi)3 impervious areas and total impervious area less than 30%): where CN, CNp + (Pimp/10OX98 - CNpX1 - O-5R) V,/Vr @ ratio of storage volume (V,) to runoff volume (V,.), where R ratio of unconnected impervious area to qo/qi @ ratio of peak outflow discharge total impervious area. (q,) to peak inflow discharge (qi), and CO, C1, C2, C3 @ coefficients from table F-2. Figure 3-1 (average velocities for estimating travel time for shallow concentrated flow): Unpaved V = 16.1345 (S)0.5 Paved V = 20'.3282 (S)0.5 (210-VI-TR-55, Second Ed., June 1986) F-1 Table F-L-Coefficients for the equation used to generate exhibits 4-1 through 4-111 Rainfall type la/P Co C, C2 1 0.10 2.30550 -0.51429 -0.11750 0.20 2.23537 -0.50387 -0.08929 0.25 2.18219 -0.48488 -0.06589 0.30 2.10624 -0.45695 -0.02835 0.35 2.00803 -0.40769 0.01983 1.87733 -0.32274 0.05754 0.45 1.76312 -0.15644 0.00453 0.50 1.67889 -0.06930 0.0 IA 0.10 2.03250 -0.31583 -0.13748 0.20 1.91978 -0.28215 -0.07020 0.25 1.83842 -0.25543 -0.02597 0.30 1.72657 -0.19826 0.02633 0.50 1.63417 -0.09100 0.0 11 0.10 2.55323 -0.61512 -0.16403 0.30 2.46532 -0.62257 -0.11657 0.35 2.41896 -0.61594 -0.08820 0.40 2.36409 -0.59857 -0,.05621 0.45 2.29238 -0.57005 -0.02281 0.50 2.20282 -0.51599 -0.01259 111 0.10 2.47317 -0.51848 -0.17083 0.30 2.39628 -0.51202 -0.13245 0.35 2.35477 -0.49735 -0.11985 0.40 2.30726 -0.46541 -0.11094 0.45 2.24876 -0.41314 -0.11508 0.50 2.17772 -0.36803 -0.09525 Table F-2.-Coefficients for the equation used to generate figure 6-1 Rainfall distribution Co C, C2 C3 (appendix B) 1, IA 0.660 -1.76 1.96 -0.730 11, 111 0.682 -1.43 1.64 -0.804 @,U.S. GOVERNMENT PRINTING OFFICEtf986-624-060/661 F-2 (210-VI-TR-55, Second Ed., June 1986) 1111 Ionia I I 3 66 8 41031544 US Department of Commerce NOAA Cowital Services Center Library 2234 South Hobson Avenue Charlesteno SC 2"0&2413 6 1