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Drainage Report RENNISON ENGINEERING DRAINAGE REPORT REVISED PREPARED BY: BRYAN E.APPLEBY, PE OCTOBER 22,2015 �Ss‘ONAL ENCS � G%STE1 'c5 12645'0 4),p,.4'TO F \� E. A?'? - 10/22/15 PROJECT THE HUMAN BEAN 1648 NW 1st STREET— MERIDIAN, IDAHO PO Box 1001 Eagle,Idaho 83616 I 208-938-2440 I www.rennisonengineering.com 1 4-iFIZ October 2015 Drainage Report(revised) The Human Bean, Meridian, Idaho Page 2 of 7 INDEX Page Project Description 2 Methodology 2 Appendix A(Drainage Map) 3 Appendix B(Drainage Calculations) 4 Appendix C(NRCS Web Soil Survey) 5 Appendix D(Civil Construction Plans) 6 PROJECT DESCRIPTION Overview The proposed project includes the construction of a drive-thru coffee shop(Phase 1)with drive aisles and parking areas. The stormwater design accommodates Phase 1 improvements as well as 2,500 sq.ft.of future improvements on the west half of the lot. All stormwater runoff will sheet flow to two surface swales for treatment and disposal to the subsurface strata through a sand filter. Existing Site Conditions The project site is currently undeveloped, but previously contained eight structures that were demolished as part of the Meridian Road Split Corridor Phase 2 Project. The Ada County Highway District purchased the property at that time. The site currently contains a few trees that will be removed. The site is bordered by W.Cherry Lane to the north, NW 15t Street to the west, N. Meridian Road to the east,and by single-family residential south. t r; p t # u. as rtit. = n k=. Existing Drainage Conditions Site topography is generally flat with no distinct drainage path or destination. The slope across the site from east to west is approximately-0.6%. There is no slope across the site from north to south. Proposed Drainage System and System Description All Phase 1 stormwater runoff will sheet flow to two surface swales via a curb drain. The swales are sized based on the required 100-year storm event plus an increase of 15%for long-term sedimentation. The entire bottom of the two swales will contain a 36-inch depth sand infiltration window. The surface of the infiltration window within the northern swale is located 2.9 feet below existing ground surface. The surface of the infiltration window within the eastern swale is located 2.0 feet below existing ground surface. Seasonal high groundwater is anticipated to be greater than 80 inches(6.7 feet) below ground surface per the NRCS Web Soil Survey(see Appendix C). As noted in the plans,the contractor will excavate a minimum of one test hole per swale to determine if impermeable layers or groundwater exist within 4 feet of the proposed bottom of swale. PO Box I00 Eagle,Idaho 83616 1208-938-2440 I www.rennisonengineering.com t 1 October 2015 Drainage Report(revised) The Human Bean, Meridian, Idaho Page 3 of 7 METHODOLOGY Drainage calculations utilize the Rational Method(Q=CIA)and the 100-year storm event. Peak flow rates are based on a minimum time of concentration of 10 minutes. Utilizing the IDF curves for this region results in an intensity of 3.11 inches per hour. Stormwater volumes are calculated assuming an average uniform intensity of 1.15 inches per hour over a storm duration of one(1)hour(V=CIDA). The infiltration rate has been conservatively assumed to be four(4) inches per hour. Infiltration Swale: Infiltration swales are designed to retain the 100-year storm event runoff volume without considering infiltration. The 36-inch depth filter sand layer has an assumed void ratio of 25%. However,our calculations did not consider the storage capacity of the sand layer. In reality,the 100-year storm event water surface shown in this report would be lower due to infiltration and the storage capacity of the sand layer. To account for long-term sedimentation within each swale,the calculated design volume has been increased by 15%. Each swale is designed to completely drain within the first 24 hours following the design storm event. Stormwater Retention Ditch: A v-ditch along the north side of the east-west access road from NW 1st Street to the project site is designed to retain the 100-year storm event runoff volume. This ditch is considered temporary until the site further develops. A future sand and grease trap and seepage bed are anticipated at the low point shown on the plans. A separate drainage report will be submitted at a later date as development of the site progresses. PO Box 1001 Eagle,Idaho 83616 I 208-938-2440 I www.rennisonengineering.com r October 2015 Drainage Report(revised) The Human Bean, Meridian, Idaho Page 4 of 7 APPENDIX A DRAINAGE MAP PO Box 1001 Eagle,Idaho 83616 I 208-938-2440 I www.rennisonengineering.com t October 2015 Drainage Report(revised) The Human Bean, Meridian, Idaho Page 5of7 APPENDIX B DRAINAGE CALCULATIONS PO Box 1001 Eagle,Idaho 83616 1 208-938-2440 1 www.rennisonengineering.com Basin "A" Calculations Drainage Basin Areas and Weighted C Values Paving Landscape Roof Total Area Drainage Basin Weighted C Value Area (sf) C Value Area (sf) C Value Area (sf) C Value (sf) A 6990 0.90 3024 0.20 711 0.95 10725 0.7059 100-Year Event Runoff Volume Calculations(Discharge Volume to Swale) Combined Intensity(in/hr) Total Runoff Volume(cf) Drainage Basin Weighted C Value Duration(hr) V100 Tributary Area (sf) (100-yr event) A 10725 0.7059 1.15 1.0 720 Infiltration Swale Calculations Total Runoff Volume,V100 720 cf V100+15%Sediment 828 cf « Minimum swale storage volume Storage Volume Provided * 1016 cf Infiltration Area Provided 300 sf Infiltration Rate 0.33 ft/hr «4"/hr assumed (conservative) Time to infiltrate Tot Runoff Vol 7.2 hr * Storage volume calculated below using average end area method (water will not back up into parking lot or enter Meridian Road right-of-way) WSW y n < Elevation 2599.42(Surface Area =773 SF) 301 CF < Elevation 2599.00(Surface Area=661 SF) < Elevation 2599.00(Surface Area =661 SF) ._ 299 CF Stir 41214-ZAW, < Elevation 2598.50(Surface Area=534 SF) < Elevation 2598.50(Surface Area =534 SF) 237 CF < Elevation 2598.00(Surface Area=413 SF) < Elevation 2598.00(Surface Area =413 SF) } ,tif:mitiviMszsej 179 CF .,x., < Elevation 2597.50(Surface Area =304 SF) Basin "B" Calculations Drainage Basin Areas and Weighted C Values Paving Landscape Roof Total Area Drainage Basin Weighted C Value Area (sf) C Value Area (sf) C Value Area (sf) C Value (sf) B 10392 0.90 2717 0.20 0 0.95 13109 0.7549 100-Year Event Runoff Volume Calculations(Discharge Volume to Swale) Combined Intensity(in/hr) Total Runoff Volume(cf) Drainage Basin Duration(hr) Tributary Area(sf) Weighted C Value (100-yr event) V100 B 13109 0.7549 1.15 1.0 941 Infiltration Swale Calculations Total Runoff Volume,V100 941 cf V100+ 15%Sediment 1082 cf « Minimum swale storage volume Storage Volume Provided * 1245 cf Infiltration Area Provided 242 sf Infiltration Rate 0.33 ft/hr «4"/hr assumed(conservative) Time to infiltrate Tot Runoff Vol 11.7 hr * Storage volume calculated below using average end area method (water will not back up into parking lot or enter Cherry Lane right-of-way) :: < Elevation 2598.00(Surface Area =754 SF) 1,245 CF SSS'. < Elevation 2595.50(Surface Area=242 SF) Basin "C" Calculations Drainage Basin Areas and Weighted C Values Paving Landscape Roof Total Area C Value Drainage BasinWeighted Area (sf) C Value Area (sf) C Value Area (sf) C Value (sf) C 3368 0.90 0 0.20 0 0.95 3368 0.9000 100-Year Event Runoff Volume Calculations(Discharge Volume to Swale) Combined Intensity(in/hr) Total Runoff Volume(cf) Drainage Basin Duration(hr) Tributary Area(sf) Weighted C Value (100-yr event) V100 • C 3368 0.9000 1.15 1.0 288 Roadside Ditch Calculations Total Runoff Volume,V100 288 cf Storage Volume Provided 309 cf <Top width =6.6' Depth =1.1' A=(1/2)bh =(1/2)(6.6')(1.11=3.63 SF rz V=3.63 CF/ft Length, L=85 ft Ditch volume=309 CF 1 October 2015 Drainage Report(revised) The Human Bean, Meridian, Idaho Page 6 of 7 APPENDIX C NRCS WEB SOIL SURVEY PO Box 1001 Eagle,Idaho 83616 1208-938-2440 1 www.rennisonengineering.com • USDA United States A product of the National Custom Soil Resource Department of Cooperative Soil Survey, Agriculture a joint effort of the United Report for \ RCS States Department of Agriculture and other Ada County Federal agencies, State Natural agencies including the Resources Agricultural Experiment daho Conservation Stations, and local Service participants ....•....� x �`.,4',„1„,-.0„-,,,!.1- A 2 . ti fr .. F .7' N- a * 'k Nrt 17 ; $ f +T' fit'^ �3+sy. ' t +{ „ � « ! t' 1 ,. - t t sem ..�..�.+�.,---- t 10111 3s •h ,r.. t Y uk4" ;moi ` ��, y 41t t '4 I � • LL i � ' iir • ■ 1 ,,,_J • v --':.: .- ., . ' , 7.1Aks- *-41.' V'; '171 • 1 I ter— : .L $ . . ,� , litill10' LI I I III I July 29, 2015 Preface Soil surveys contain information that affects land use planning in survey areas. They highlight soil limitations that affect various land uses and provide information about the properties of the soils in the survey areas. Soil surveys are designed for many different users, including farmers, ranchers, foresters, agronomists, urban planners, community officials, engineers, developers, builders, and home buyers. Also, conservationists, teachers, students, and specialists in recreation,waste disposal, and pollution control can use the surveys to help them understand,protect,or enhance the environment. Various land use regulations of Federal, State, and local governments may impose special restrictions on land use or land treatment. Soil surveys identify soil properties that are used in making various land use or land treatment decisions.The information is intended to help the land users identify and reduce the effects of soil limitations on various land uses.The landowner or user is responsible for identifying and complying with existing laws and regulations. Although soil survey information can be used for general farm, local, and wider area planning,onsite investigation is needed to supplement this information in some cases. Examples include soil quality assessments(http://www.nres.usda.gov/wps/portal/ nrcs/main/soils/health/)and certain conservation and engineering applications. For more detailed information, contact your local USDA Service Center(http:// offices.sc.egov.usda.gov/locator/app?agency=nres)or your NRCS State Soil Scientist(http://www.nres.usda.gov/wps/portal/nres/detail/soils/contactus/? cid=nres142p2_053951). Great differences in soil properties can occur within short distances. Some soils are seasonally wet or subject to flooding. Some are too unstable to be used as a foundation for buildings or roads.Clayey or wet soils are poorly suited to use as septic tank absorption fields. A high water table makes a soil poorly suited to basements or underground installations. The National Cooperative Soil Survey is a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local agencies. The Natural Resources Conservation Service(NRCS) has leadership for the Federal part of the National Cooperative Soil Survey. Information about soils is updated periodically. Updated information is available through the NRCS Web Soil Survey, the site for official soil survey information. The U.S. Department of Agriculture(USDA)prohibits discrimination in all its programs and activities on the basis of race, color, national origin, age, disability, and where applicable, sex, marital status, familial status, parental status, religion, sexual orientation, genetic information, political beliefs, reprisal, or because all or a part of an individual's income is derived from any public assistance program. (Not all prohibited bases apply to all programs.) Persons with disabilities who require alternative means 2 s for communication of program information (Braille, large print, audiotape, etc.)should contact USDA's TARGET Center at(202) 720-2600 (voice and TDD). To file a complaint of discrimination, write to USDA, Director, Office of Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C. 20250-9410 or call (800) 795-3272 (voice) or(202) 720-6382 (TDD). USDA is an equal opportunity provider and employer. 3 , Contents Preface 2 How Soil Surveys Are Made 5 Soil Map 7 Soil Map 8 Legend 9 Map Unit Legend 10 Map Unit Descriptions 10 Ada County, Idaho 12 144—Purdam-Power silt barns, 0 to 2 percent slopes 12 References 14 4 How Soil Surveys Are Made Soil surveys are made to provide information about the soils and miscellaneous areas in a specific area.They include a description of the soils and miscellaneous areas and their location on the landscape and tables that show soil properties and limitations affecting various uses. Soil scientists observed the steepness, length, and shape of the slopes; the general pattern of drainage; the kinds of crops and native plants; and the kinds of bedrock.They observed and described many soil profiles.A soil profile is the sequence of natural layers, or horizons, in a soil. The profile extends from the surface down into the unconsolidated material in which the soil formed or from the surface down to bedrock. The unconsolidated material is devoid of roots and other living organisms and has not been changed by other biological activity. Currently, soils are mapped according to the boundaries of major land resource areas (MLRAs). MLRAs are geographically associated land resource units that share common characteristics related to physiography, geology, climate, water resources, soils, biological resources, and land uses (USDA, 2006). Soil survey areas typically consist of parts of one or more MLRA. The soils and miscellaneous areas in a survey area occur in an orderly pattern that is related to the geology, landforms, relief, climate, and natural vegetation of the area. Each kind of soil and miscellaneous area is associated with a particular kind of landform or with a segment of the landform. By observing the soils and miscellaneous areas in the survey area and relating their position to specific segments of the landform,a soil scientist develops a concept,or model,of how they were formed.Thus, during mapping, this model enables the soil scientist to predict with a considerable degree of accuracy the kind of soil or miscellaneous area at a specific location on the landscape. Commonly, individual soils on the landscape merge into one another as their characteristics gradually change. To construct an accurate soil map, however, soil scientists must determine the boundaries between the soils. They can observe only a limited number of soil profiles. Nevertheless, these observations, supplemented by an understanding of the soil-vegetation-landscape relationship, are sufficient to verify predictions of the kinds of soil in an area and to determine the boundaries. Soil scientists recorded the characteristics of the soil profiles that they studied. They noted soil color, texture, size and shape of soil aggregates, kind and amount of rock fragments, distribution of plant roots, reaction, and other features that enable them to identify soils. After describing the soils in the survey area and determining their properties, the soil scientists assigned the soils to taxonomic classes (units). Taxonomic classes are concepts. Each taxonomic class has a set of soil characteristics with precisely defined limits. The classes are used as a basis for comparison to classify soils systematically. Soil taxonomy, the system of taxonomic classification used in the United States, is based mainly on the kind and character of soil properties and the arrangement of horizons within the profile. After the soil scientists classified and named the soils in the survey area, they compared the 5 Custom Soil Resource Report individual soils with similar soils in the same taxonomic class in other areas so that they could confirm data and assemble additional data based on experience and research. The objective of soil mapping is not to delineate pure map unit components; the objective is to separate the landscape into landforms or landform segments that have similar use and management requirements. Each map unit is defined by a unique combination of soil components and/or miscellaneous areas in predictable proportions. Some components may be highly contrasting to the other components of the map unit. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The delineation of such landforms and landform segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, onsite investigation is needed to define and locate the soils and miscellaneous areas. Soil scientists make many field observations in the process of producing a soil map. The frequency of observation is dependent upon several factors, including scale of mapping, intensity of mapping, design of map units, complexity of the landscape, and experience of the soil scientist. Observations are made to test and refine the soil- landscape model and predictions and to verify the classification of the soils at specific locations. Once the soil-landscape model is refined, a significantly smaller number of measurements of individual soil properties are made and recorded. These measurements may include field measurements, such as those for color, depth to bedrock, and texture, and laboratory measurements, such as those for content of sand, silt, clay, salt, and other components. Properties of each soil typically vary from one point to another across the landscape. Observations for map unit components are aggregated to develop ranges of characteristics for the components. The aggregated values are presented. Direct measurements do not exist for every property presented for every map unit component. Values for some properties are estimated from combinations of other properties. While a soil survey is in progress, samples of some of the soils in the area generally are collected for laboratory analyses and for engineering tests.Soil scientists interpret the data from these analyses and tests as well as the field-observed characteristics and the soil properties to determine the expected behavior of the soils under different uses. Interpretations for all of the soils are field tested through observation of the soils in different uses and under different levels of management. Some interpretations are modified to fit local conditions, and some new interpretations are developed to meet local needs. Data are assembled from other sources, such as research information, production records, and field experience of specialists. For example, data on crop yields under defined levels of management are assembled from farm records and from field or plot experiments on the same kinds of soil. Predictions about soil behavior are based not only on soil properties but also on such variables as climate and biological activity. Soil conditions are predictable over long periods of time, but they are not predictable from year to year. For example, soil scientists can predict with a fairly high degree of accuracy that a given soil will have a high water table within certain depths in most years, but they cannot predict that a high water table will always be at a specific level in the soil on a specific date. After soil scientists located and identified the significant natural bodies of soil in the survey area, they drew the boundaries of these bodies on aerial photographs and identified each as a specific map unit.Aerial photographs show trees, buildings,fields, roads, and rivers, all of which help in locating boundaries accurately. 6 Soil Map The soil map section includes the soil map for the defined area of interest, a list of soil map units on the map and extent of each map unit, and cartographic symbols displayed on the map. 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N O O v) a) N o o O c O `O fa O O O c > co c_ N F2 a) N U C C > c 'O .O < covs us 'BE m U 0 0 0 2 2 m g a ce U) cn (n U) CO a, a C N o. a 0 Custom Soil Resource Report Map Unit Legend Ada County,Idaho(ID001) Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI 144 Purdam-Power silt foams, 0 to 2 17.1 100.0% percent slopes Totals for Area of Interest 17.1 100.0% Map Unit Descriptions The map units delineated on the detailed soil maps in a soil survey represent the soils or miscellaneous areas in the survey area. The map unit descriptions, along with the maps, can be used to determine the composition and properties of a unit. A map unit delineation on a soil map represents an area dominated by one or more major kinds of soil or miscellaneous areas. A map unit is identified and named according to the taxonomic classification of the dominant soils. Within a taxonomic class there are precisely defined limits for the properties of the soils. On the landscape, however, the soils are natural phenomena, and they have the characteristic variability of all natural phenomena. Thus, the range of some observed properties may extend beyond the limits defined for a taxonomic class. Areas of soils of a single taxonomic class rarely, if ever, can be mapped without including areas of other taxonomic classes. Consequently, every map unit is made up of the soils or miscellaneous areas for which it is named and some minor components that belong to taxonomic classes other than those of the major soils. Most minor soils have properties similar to those of the dominant soil or soils in the map unit, and thus they do not affect use and management. These are called noncontrasting, or similar, components. They may or may not be mentioned in a particular map unit description. Other minor components, however, have properties and behavioral characteristics divergent enough to affect use or to require different management.These are called contrasting, or dissimilar, components.They generally are in small areas and could not be mapped separately because of the scale used. Some small areas of strongly contrasting soils or miscellaneous areas are identified by a special symbol on the maps. If included in the database for a given area, the contrasting minor components are identified in the map unit descriptions along with some characteristics of each. A few areas of minor components may not have been observed, and consequently they are not mentioned in the descriptions, especially where the pattern was so complex that it was impractical to make enough observations to identify all the soils and miscellaneous areas on the landscape. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The objective of mapping is not to delineate pure taxonomic classes but rather to separate the landscape into landforms or landform segments that have similar use and management requirements. The delineation of such segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, however, onsite investigation is needed to define and locate the soils and miscellaneous areas. 10 Custom Soil Resource Report An identifying symbol precedes the map unit name in the map unit descriptions. Each description includes general facts about the unit and gives important soil properties and qualities. Soils that have profiles that are almost alike make up a soil series. Except for differences in texture of the surface layer, all the soils of a series have major horizons that are similar in composition, thickness, and arrangement. Soils of one series can differ in texture of the surface layer, slope, stoniness, salinity, degree of erosion, and other characteristics that affect their use. On the basis of such differences, a soil series is divided into soil phases. Most of the areas shown on the detailed soil maps are phases of soil series. The name of a soil phase commonly indicates a feature that affects use or management. For example, Alpha silt loam, 0 to 2 percent slopes, is a phase of the Alpha series. Some map units are made up of two or more major soils or miscellaneous areas. These map units are complexes, associations, or undifferentiated groups. A complex consists of two or more soils or miscellaneous areas in such an intricate pattern or in such small areas that they cannot be shown separately on the maps. The pattern and proportion of the soils or miscellaneous areas are somewhat similar in all areas. Alpha-Beta complex, 0 to 6 percent slopes, is an example. An association is made up of two or more geographically associated soils or miscellaneous areas that are shown as one unit on the maps. Because of present or anticipated uses of the map units in the survey area, it was not considered practical or necessary to map the soils or miscellaneous areas separately. The pattern and relative proportion of the soils or miscellaneous areas are somewhat similar. Alpha- Beta association, 0 to 2 percent slopes, is an example. An undifferentiated group is made up of two or more soils or miscellaneous areas that could be mapped individually but are mapped as one unit because similar interpretations can be made for use and management. The pattern and proportion of the soils or miscellaneous areas in a mapped area are not uniform. An area can be made up of only one of the major soils or miscellaneous areas, or it can be made up of all of them. Alpha and Beta soils, 0 to 2 percent slopes, is an example. Some surveys include miscellaneous areas. Such areas have little or no soil material and support little or no vegetation. Rock outcrop is an example. 11 Custom Soil Resource Report Ada County, Idaho 144—Purdam-Power silt loarns, 0 to 2 percent slopes Map Unit Setting National map unit symbol: 2q73 Elevation: 2,000 to 5,000 feet Mean annual precipitation: 8 to 12 inches Mean annual air temperature: 45 to 52 degrees F Frost-free period: 100 to 160 days Farmland classification: Prime farmland if irrigated Map Unit Composition Purdam, thy, and similar soils: 55 percent Power, dry, and similar soils: 30 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Purdam, Dry Setting Landform: Stream terraces Down-slope shape: Linear Across-slope shape: Linear Parent material: Mixed alluvium and/or lacustrine deposits and/or loess Typical profile Al - 0 to 2 inches: silt loam A2-2 to 6 inches: silt loam Btl - 6 to 9 inches: silt loam Bt2- 9 to 17 inches: silty clay loam Bkql - 17 to 21 inches: silt loam Bkqml - 21 to 36 inches: cemented material 2Bkq2- 36 to 48 inches: stratified gravelly sandy loam to loam 2Bkqm2- 48 to 60 inches: cemented material Properties and qualities Slope: 0 to 2 percent Depth to restrictive feature: 20 to 40 inches to duripan Natural drainage class: Well drained Capacity of the most limiting layer to transmit water(Ksat): Very low to moderately low (0.00 to 0.06 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum in profile: 40 percent Gypsum, maximum in profile: 2 percent Salinity, maximum in profile: Nonsaline to slightly saline (1.0 to 4.0 mmhos/cm) Sodium adsorption ratio, maximum in profile: 10.0 Available water storage in profile: Low(about 4.1 inches) Interpretive groups Land capability classification (irrigated): 3s Land capability classification (nonirrigated): 6c Hydrologic Soil Group: C Ecological site: LOAMY 7-10 ARTRW8/STTH2 (R011XY0031D) 12 Custom Soil Resource Report Description of Power, Dry Setting Landform: Lava plains Down-slope shape: Linear Across-slope shape: Linear Parent material: Mixed alluvium and/or loess Typical profile A - 0 to 9 inches: silt loam Btk- 9 to 27 inches: silty clay loam Bk- 27 to 63 inches: loam Properties and qualities Slope: 0 to 2 percent Depth to restrictive feature: More than 80 inches Natural drainage class: Well drained Capacity of the most limiting layer to transmit water(Ksat): Moderately high (0.20 to 0.60 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum in profile: 30 percent Salinity, maximum in profile: Nonsaline to very slightly saline(0.0 to 2.0 mmhos/cm) Sodium adsorption ratio, maximum in profile: 5.0 Available water storage in profile: High (about 10.8 inches) Interpretive groups Land capability classification (irrigated): 2e Land capability classification (nonirrigated): 6c Hydrologic Soil Group: C Ecological site: LOAMY 7-10 ARTRW8/STTH2 (R011XY003ID) 13 References American Association of State Highway and Transportation Officials(AASHTO).2004. Standard specifications for transportation materials and methods of sampling and testing. 24th edition. American Society for Testing and Materials (ASTM). 2005. Standard classification of soils for engineering purposes. ASTM Standard D2487-00. Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of wetlands and deep-water habitats of the United States. U.S. Fish and Wildlife Service FWS/OBS-79/31. Federal Register. July 13, 1994. Changes in hydric soils of the United States. Federal Register. September 18, 2002. Hydric soils of the United States. Hurt, G.W.,and L.M.Vasilas,editors.Version 6.0, 2006. Field indicators of hydric soils in the United States. National Research Council. 1995. Wetlands: Characteristics and boundaries. Soil Survey Division Staff. 1993. Soil survey manual. Soil Conservation Service. U.S. Department of Agriculture Handbook 18. http://www.nrcs.usda.gov/wps/Portal/nrcs/ detail/national/soils/?cid=nres142p2_054262 Soil Survey Staff. 1999. Soil taxonomy:A basic system of soil classification for making and interpreting soil surveys. 2nd edition. Natural Resources Conservation Service, U.S. Department of Agriculture Handbook 436. http://www.nrcs.usda.gov/wps/portal/ nres/detail/national/soils/?cid=nres142p2_053577 Soil Survey Staff. 2010. Keys to soil taxonomy. 11th edition. U.S. Department of Agriculture, Natural Resources Conservation Service. http://www.nres.usda.gov/wps/ portal/nres/detail/national/soils/?cid=nres142p2_053580 Tiner, R.W., Jr. 1985. Wetlands of Delaware. U.S. Fish and Wildlife Service and Delaware Department of Natural Resources and Environmental Control, Wetlands Section. United States Army Corps of Engineers, Environmental Laboratory. 1987. Corps of Engineers wetlands delineation manual. Waterways Experiment Station Technical Report Y-87-1. United States Department of Agriculture, Natural Resources Conservation Service. National forestry manual. http://www.nres.usda.gov/wps/portal/nres/detail/soils/ home/?cid=nres142p2_053374 United States Department of Agriculture, Natural Resources Conservation Service. National range and pasture handbook. http://www.nrcs.usda.gov/wps/portal/nrcs/ detail/national/landuse/rangepasture/?cid=stelprdb1043084 14 Custom Soil Resource Report United States Department of Agriculture, Natural Resources Conservation Service. National soil survey handbook, title 430-VI. http://www.nres.usda.gov/wps/portal/ nres/detail/soils/scientists/?cid=nres142p2_054242 United States Department of Agriculture, Natural Resources Conservation Service. 2006. Land resource regions and major land resource areas of the United States, the Caribbean, and the Pacific Basin. U.S. Department of Agriculture Handbook 296. http://www.nres.usda.gov/wps/portal/nres/detail/national/soils/? cid=nres142p2_053624 United States Department of Agriculture, Soil Conservation Service. 1961. Land capability classification. U.S. Department of Agriculture Handbook 210. http:// www.nres.usda.gov/I nternet/FSE_DOCUMENTS/nres142p2_052290.pdf 15 October 2015 Drainage Report(revised) The Human Bean, Meridian, Idaho Page 7 of 7 APPENDIX D CIVIL CONSTRUCTION PLANS PO Box 1001 Eagle,Idaho 83616 208-938-2440 www.rennisonengineering.com I n O1,0Z1t610Z d 919f0 WRI M21 ION+m0 Od 0 / \0 9 NI1133NI9N3NOSINN3e1 133HSII3A00 #� 2; 0 6 '•i `: I I Ntl39 NVWFIH 3H1 15 Lrzzror .E.3'YMs'3anso'ou3 xsua.'s3OIne3s e3M3s I r,� R m U SNtl'Id NOIIORN.LSN00 S.�.vO SNOISIA311 0 -ON o a e s i e ! 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