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HomeMy WebLinkAbout20230992 Ver 1_Soil Map (2)_20230712USDA United States Department of Agriculture N RCS Natural Resources Conservation Service A product of the National Cooperative Soil Survey, a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local participants Custom Soil Resource Report for Buncombe County, North Carolina CAne Creek -Gravelly Creek Stie June 20, 2023 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/nres/main/soils/health/) and certain conservation and engineering applications. For more detailed information, contact your local USDA Service Center (https:Hoffices.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 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. Contents Preface.................................................................................................................... 2 SoilMap.................................................................................................................. 5 SoilMap................................................................................................................6 Legend..................................................................................................................7 MapUnit Legend.................................................................................................. 8 MapUnit Descriptions.......................................................................................... 8 Buncombe County, North Carolina..................................................................11 BeA—Biltmore loamy sand, 0 to 3 percent slopes, occasionally flooded .... 11 DrB—Dillard loam, 1 to 5 percent slopes, rarely flooded ............................ 12 HpA—Hemphill loam, 0 to 3 percent slopes, rarely flooded ........................13 IoA—lotla loam, 0 to 2 percent slopes, occasionally flooded......................14 KsB—Kanuga-Swannanoa complex, 2 to 8 percent slopes ........................15 KsC—Kanuga-Swannanoa complex, 8 to 15 percent slopes......................17 RdA—Reddies sandy loam, 0 to 3 percent slopes, occasionally flooded... 18 RsA—Rosman fine sandy loam, 0 to 3 percent slopes, occasionally flooded.................................................................................................. 19 StB—Statler loam, 1 to 5 percent slopes, rarely flooded .............................21 TsA—Toxaway loam, 0 to 2 percent slopes, frequently flooded..................22 UnB—Unison loam, 2 to 8 percent slopes .................................................. 23 W—Water.................................................................................................... 24 References............................................................................................................ 25 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. Also presented are various metadata about data used to produce the map, and a description of each soil map unit. in 368600 35° 29' 1" N Q tb 35° 28' 4" N Custom Soil Resource Report Soil Map 368WO 369000 369200 3694W in Map Scale: 1:8,470 if printed on A portrait (8.5" x 11") sheet. Milers N 0 100 200 400 600 Feet 0 400 800 1600 2400 Map projection: Web Mercator Comer coordinates: WGS84 Edge tics: UTM Zone 17N WGS84 6 369800 R 35° 29' 1" N I 35° 28' 4" N 369800 N m o U) T y �-r_ a) U) = o (6 O_ U U O y= O N a) p .� -6 m O E a) -6 U) w '6 .� m QUA N O C E — O) Q U) > _ ._ C O_ N — V N Z E O C if N `' a) a ras (n O E Q U) -0 O ��U) . LQU) a) U) a) CJ O N L-0" Z N U)Q U E u)i o r N 0 U) 70 N N a3 Q Z ON p L 2 O N E U w as s � U) > ao (U Q � as a) C tl) a3 D C O_ N p 0- a >+ I.fi O j T p �U p O 0 N p C O a) 7 a) O (n U a3 CL O O O_'— �j a3 O E C �' O C U O U) O Q E �' m Z y O N a) O C E a) N y L Q O' O a5 N 7 y U O N (� a) a) Q '6 0 p '6 a) E O O '6 N a3 -0 a) a3 0 w -p � Q U Li CL'C (n Q U)o N—> m y O C N C (6 m Q O U a3 o of U) a) N jU O) N '6 a3 a5 0 0) T 7 >' N C y O_ O j, a) U N (6 7 i ,y C N Q y (6 O -6 p Q 0 0 > m 3 .J 3 C a3 a3 cm U .0 Q a3 ... C L C N E E N _ 2 O E � U D O a) O � � O � � Q � o O_ O a) a3 Q as _ t -O O . y y y O C U a) y .0 C y a3 O O- N (� N E O N �p Q N O) N a5 a5 a) a) O p aa)) p O_ .O a3 a) 7 a3 O U) U y = L 0 7 = O O N a3 NO O) t L EpEL L w Q y d R Li y O R U L L Q Q >. 00 0 0 L d Q 0 ° U)CL J m N a) E m .0. O o M O � a o O U) cn Z N > L_ O cn y a) cn O m � ° Z R U 3 a m Q 0 R R 0 N O0. C p O Z W ip < tt R R 0 A F m W J y a a 0CL y o o ) w o a o a N y Q E �, R y Q a o a U 0 C C > > Q Q C a) > Q R Q a fl Q Q w fl >, 3 O 3 R y `p `o O > a > N ° w o o (� (� 0 Q LU _ o , a) O- `o o a R R R R w LL 3 a 3 O T w > > = a R w o E coi O a) o U) > Y o a y Q o 0 cn cn 0 cn p o o R O m m U U (7 (7 > J J R y N a O m R m U) U) a o U) in U) U) w a � R rG�� �f7 +may �¢p➢ 'II�; y, Q y ro Custom Soil Resource Report Map Unit Legend Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI BeA Biltmore loamy sand, 0 to 3 2.4 4.7% percent slopes, occasionally flooded DrB Dillard loam, 1 to 5 percent 1.9 3.8% slopes, rarely flooded HpA Hemphill loam, 0 to 3 percent 2.8 5.4% slopes, rarely flooded IoA lotla loam, 0 to 2 percent 15.8 30.8% slopes, occasionally flooded KsB Kanuga-Swannanoa complex, 2 0.5 1.0% to 8 percent slopes KsC Kanuga-Swannanoa complex, 8 1.3 2.6% to 15 percent slopes RdA Reddies sandy loam, 0 to 3 3.2 6.1 % percent slopes, occasionally flooded RsA Rosman fine sandy loam, 0 to 3 15.7 30.6% percent slopes, occasionally flooded StB Statler loam, 1 to 5 percent 1.1 2.2% slopes, rarely flooded TsA Toxaway loam, 0 to 2 percent 0.0 0.0% slopes, frequently flooded UnB Unison loam, 2 to 8 percent 0.0 0.0% slopes W Water 6.5 12.6% Totals for Area of Interest 61.3 100.0% 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 Custom Soil Resource Report 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 Iandforms or Iandform 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. 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. Custom Soil Resource Report 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. 10 Custom Soil Resource Report Buncombe County, North Carolina BeA—Biltmore loamy sand, 0 to 3 percent slopes, occasionally flooded Map Unit Setting National map unit symbol: 1 t3s9 Elevation: 1,060 to 1,640 feet Mean annual precipitation: 48 to 60 inches Mean annual air temperature: 46 to 57 degrees F Frost -free period: 116 to 170 days Farmland classification: Prime farmland if irrigated Map Unit Composition Biltmore, occasionally flooded, and similar soils: 90 percent Minor components: 5 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Biltmore, Occasionally Flooded Setting Landform: Natural levees on flood plains Down -slope shape: Linear Across -slope shape: Convex Parent material: Sandy alluvium Typical profile A - 0 to 8 inches: loamy sand C - 8 to 80 inches: sand Properties and qualities Slope: 0 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Very low Capacity of the most limiting layer to transmit water (Ksat): High to very high (6.00 to 20.00 in/hr) Depth to water table: About 42 to 72 inches Frequency of flooding: Occasional Frequency of ponding: None Available water supply, 0 to 60 inches: Low (about 5.2 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 3s Hydrologic Soil Group: A Ecological site: F130BY012WV - Non-Hydric Flood plains Hydric soil rating: No Minor Components Toxaway, undrained Percent of map unit. 5 percent Landform: Depressions on flood plains Down -slope shape: Linear, concave Across -slope shape: Concave Hydric soil rating: Yes 11 Custom Soil Resource Report DrB—Dillard loam, 1 to 5 percent slopes, rarely flooded Map Unit Setting National map unit symbol: 1 t3vl Elevation: 1,750 to 2,340 feet Mean annual precipitation: 50 to 58 inches Mean annual air temperature: 46 to 57 degrees F Frost -free period: 116 to 170 days Farmland classification: All areas are prime farmland Map Unit Composition Dillard, rarely flooded, and similar soils: 80 percent Minor components: 2 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Dillard, Rarely Flooded Setting Landform: Stream terraces Landform position (three-dimensional): Mountainbase, base slope Down -slope shape: Concave Across -slope shape: Linear Parent material: Loamy alluvium Typical profile Ap - 0 to 7 inches: loam Bt - 7 to 50 inches: clay loam BCg - 50 to 80 inches: sandy loam Properties and qualities Slope: 1 to 5 percent Depth to restrictive feature: More than 80 inches Drainage class: Moderately well drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 1.98 in/hr) Depth to water table: About 24 to 36 inches Frequency of flooding: Rare Frequency of ponding: None Available water supply, 0 to 60 inches: Moderate (about 8.5 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 2e Hydrologic Soil Group: C Ecological site: F130BY010VVV - Terraces Hydric soil rating: No 12 Custom Soil Resource Report Minor Components Hemphill, undrained Percent of map unit. 2 percent Landform: Stream terraces Landform position (three-dimensional): Mountainbase, base slope Microfeatures of landform position: Swales Down -slope shape: Concave Across -slope shape: Concave, linear Hydric soil rating: Yes HpA—Hemphill loam, 0 to 3 percent slopes, rarely flooded Map Unit Setting National map unit symbol. 1 t3wf Elevation: 1,480 to 1,830 feet Mean annual precipitation: 52 to 68 inches Mean annual air temperature: 46 to 57 degrees F Frost -free period: 116 to 170 days Farmland classification: Farmland of statewide importance Map Unit Composition Hemphill, rarely flooded, and similar soils: 70 percent Minor components: 5 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Hemphill, Rarely Flooded Setting Landform: Depressions on stream terraces Down -slope shape: Concave Across -slope shape: Concave Parent material: Loamy and clayey alluvium Typical profile Ap - 0 to 8 inches: loam Btg - 8 to 32 inches: clay loam BCg - 32 to 80 inches: sandy clay loam Properties and qualities Slope: 0 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Very poorly drained Runoff class: High Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 in/hr) Depth to water table: About 0 inches Frequency of flooding: Rare Frequency of ponding: Occasional Available water supply, 0 to 60 inches: High (about 10.4 inches) 13 Custom Soil Resource Report Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 4w Hydrologic Soil Group: C/D Ecological site: F130BY011VVV - Hydric Floodplains Hydric soil rating: Yes Minor Components Hemphill, undrained Percent of map unit: 5 percent Landform: Depressions on stream terraces Down -slope shape: Concave Across -slope shape: Concave Hydric soil rating: Yes IoA—lotla loam, 0 to 2 percent slopes, occasionally flooded Map Unit Setting National map unit symbol: 1 t3wg Elevation: 1,800 to 2,300 feet Mean annual precipitation: 45 to 70 inches Mean annual air temperature: 46 to 57 degrees F Frost -free period: 116 to 170 days Farmland classification: Prime farmland if drained Map Unit Composition lotla, occasionally flooded, and similar soils: 85 percent Minor components: 10 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of lotla, Occasionally Flooded Setting Landform: Flood plains Down -slope shape: Linear Across -slope shape: Concave Parent material: Loamy alluvium Typical profile Ap - 0 to 10 inches: loam Bw - 10 to 31 inches: loam C - 31 to 35 inches: loamy sand Cg - 35 to 80 inches: loam Properties and qualities Slope: 0 to 2 percent Depth to restrictive feature: More than 80 inches Drainage class: Somewhat poorly drained Runoff class: Very low 14 Custom Soil Resource Report Capacity of the most limiting layer to transmit water (Ksat): High (1.98 to 5.95 in/hr) Depth to water table: About 18 to 24 inches Frequency of flooding: NoneOccasional Frequency of ponding: None Available water supply, 0 to 60 inches: Moderate (about 7.6 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 3w Hydrologic Soil Group: A/D Ecological site: F130BY011VVV - Hydric Floodplains Hydric soil rating: No Minor Components Toxaway, undrained Percent of map unit. 10 percent Landform: Depressions on flood plains Down -slope shape: Concave, linear Across -slope shape: Concave Hydric soil rating: Yes KsB—Kanuga-Swannanoa complex, 2 to 8 percent slopes Map Unit Setting National map unit symbol: 1 t3wn Elevation: 1,900 to 2,350 feet Mean annual precipitation: 40 to 58 inches Mean annual air temperature: 46 to 57 degrees F Frost -free period: 116 to 170 days Farmland classification: All areas are prime farmland Map Unit Composition Kanuga and similar soils: 50 percent Swannanoa and similar soils: 35 percent Minor components: 5 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Kanuga Setting Landform: Terraces Down -slope shape: Linear Across -slope shape: Concave Parent material: Old alluvium Typical profile Ap - 0 to 12 inches: loam Bt - 12 to 58 inches: clay Cg - 58 to 91 inches: gravelly sandy clay loam 15 Custom Soil Resource Report Properties and qualities Slope: 2 to 8 percent Depth to restrictive feature: More than 80 inches Drainage class: Moderately well drained Runoff class: Medium Capacity of the most limiting layer to transmit water (Ksat): Moderately high (0.20 to 0.57 in/hr) Depth to water table: About 24 to 36 inches Frequency of flooding: None Frequency of ponding: None Available water supply, 0 to 60 inches: Moderate (about 8.9 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 2w Hydrologic Soil Group: C Ecological site: F130BY010VVV - Terraces Hydric soil rating: No Description of Swannanoa Setting Landform: Terraces Down -slope shape: Linear Across -slope shape: Concave Parent material: Old alluvium Typical profile Ap - 0 to 15 inches: silty clay loam Btg - 15 to 64 inches: clay Cg - 64 to 91 inches: gravelly clay Properties and qualities Slope: 2 to 8 percent Depth to restrictive feature: More than 80 inches Drainage class: Somewhat poorly drained Runoff class: Medium Capacity of the most limiting layer to transmit water (Ksat): Moderately high (0.20 to 0.57 in/hr) Depth to water table: About 18 to 24 inches Frequency of flooding: None Frequency of ponding: None Available water supply, 0 to 60 inches: Moderate (about 8.7 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 3w Hydrologic Soil Group: C/D Ecological site: F130BY010VVV - Terraces Hydric soil rating: No Minor Components Hemphill, undrained Percent of map unit. 5 percent Landform: Depressions on stream terraces Down -slope shape: Concave it. Custom Soil Resource Report Across -slope shape: Concave Hydric soil rating: Yes KsC—Kanuga-Swannanoa complex, 8 to 15 percent slopes Map Unit Setting National map unit symbol: 1 t3wp Elevation: 1,900 to 2,350 feet Mean annual precipitation: 40 to 58 inches Mean annual air temperature: 46 to 57 degrees F Frost -free period: 116 to 170 days Farmland classification: Farmland of statewide importance Map Unit Composition Kanuga and similar soils: 50 percent Swannanoa and similar soils: 35 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Kanuga Setting Landform: Terraces Down -slope shape: Linear Across -slope shape: Linear Parent material: Old alluvium Typical profile Ap - 0 to 12 inches: loam Bt - 12 to 58 inches: clay Cg - 58 to 91 inches: gravelly sandy clay loam Properties and qualities Slope: 8 to 15 percent Depth to restrictive feature: More than 80 inches Drainage class: Moderately well drained Runoff class: Medium Capacity of the most limiting layer to transmit water (Ksat): Moderately high (0.20 to 0.57 in/hr) Depth to water table: About 24 to 36 inches Frequency of flooding: None Frequency of ponding: None Available water supply, 0 to 60 inches: Moderate (about 8.9 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 3e Hydrologic Soil Group: C Ecological site: F130BY010VVV - Terraces Hydric soil rating: No 17 Custom Soil Resource Report Description of Swannanoa Setting Landform: Terraces Down -slope shape: Linear Across -slope shape: Concave Parent material: Old alluvium Typical profile Ap - 0 to 15 inches: silty clay loam Btg - 15 to 64 inches: clay Cg - 64 to 91 inches: gravelly clay Properties and qualities Slope: 8 to 15 percent Depth to restrictive feature: More than 80 inches Drainage class: Somewhat poorly drained Runoff class: Medium Capacity of the most limiting layer to transmit water (Ksat): Moderately high (0.20 to 0.57 in/hr) Depth to water table: About 18 to 24 inches Frequency of flooding: None Frequency of ponding: None Available water supply, 0 to 60 inches: Moderate (about 8.7 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 3w Hydrologic Soil Group: C/D Ecological site: F130BY010VVV - Terraces Hydric soil rating: No RdA—Reddies sandy loam, 0 to 3 percent slopes, occasionally flooded Map Unit Setting National map unit symbol: 1 t3xp Elevation: 1,270 to 2,960 feet Mean annual precipitation: 60 to 68 inches Mean annual air temperature: 46 to 57 degrees F Frost -free period: 116 to 170 days Farmland classification: All areas are prime farmland Map Unit Composition Reddies, occasionally flooded, and similar soils: 80 percent Minor components: 5 percent Estimates are based on observations, descriptions, and transects of the mapunit. 18 Custom Soil Resource Report Description of Reddies, Occasionally Flooded Setting Landform: Flood plains Landform position (three-dimensional): Mountainbase Down -slope shape: Linear Across -slope shape: Linear Parent material: Loamy alluvium over cobbly and gravelly alluvium Typical profile Ap - 0 to 14 inches: sandy loam Bw - 14 to 26 inches: fine sandy loam 2C - 26 to 80 inches: very gravelly sand Properties and qualities Slope: 0 to 3 percent Depth to restrictive feature: 20 to 40 inches to strongly contrasting textural stratification Drainage class: Moderately well drained Runoff class: Very low Capacity of the most limiting layer to transmit water (Ksat): High (1.98 to 5.95 in/hr) Depth to water table: About 24 to 42 inches Frequency of flooding: Occasional Frequency of ponding: None Available water supply, 0 to 60 inches: Low (about 3.4 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 2w Hydrologic Soil Group: B Ecological site: F130BYO12VVV - Non-Hydric Flood plains Hydric soil rating: No Minor Components Ela, undrained Percent of map unit. 5 percent Landform: Depressions on flood plains Landform position (three-dimensional): Mountainbase Down -slope shape: Linear, concave Across -slope shape: Concave Hydric soil rating: Yes RsA—Rosman fine sandy loam, 0 to 3 percent slopes, occasionally flooded Map Unit Setting National map unit symbol: 1 t3xy Elevation: 1,690 to 2,590 feet 19 Custom Soil Resource Report Mean annual precipitation: 50 to 58 inches Mean annual air temperature: 46 to 57 degrees F Frost -free period: 116 to 170 days Farmland classification: All areas are prime farmland Map Unit Composition Rosman, occasionally flooded, and similar soils: 80 percent Minor components: 5 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Rosman, Occasionally Flooded Setting Landform: Flood plains Landform position (three-dimensional): Mountainbase Down -slope shape: Linear Across -slope shape: Linear Parent material: Loamy alluvium Typical profile Ap - 0 to 10 inches: fine sandy loam Bw - 10 to 59 inches: fine sandy loam C - 59 to 80 inches: fine sandy loam Properties and qualities Slope: 0 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Very low Capacity of the most limiting layer to transmit water (Ksat): High (1.98 to 5.95 in/hr) Depth to water table: About 42 to 60 inches Frequency of flooding: Occasional Frequency of ponding: None Available water supply, 0 to 60 inches: Moderate (about 8.5 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 2w Hydrologic Soil Group: A Ecological site: F130BY012WV - Non-Hydric Flood plains Hydric soil rating: No Minor Components Toxaway, undrained Percent of map unit. 5 percent Landform: Depressions on flood plains Landform position (three-dimensional): Mountainbase Down -slope shape: Concave, linear Across -slope shape: Concave, linear Hydric soil rating: Yes 20 Custom Soil Resource Report StB—Statler loam, 1 to 5 percent slopes, rarely flooded Map Unit Setting National map unit symbol: 1 t3y2 Elevation: 1,710 to 2,300 feet Mean annual precipitation: 50 to 58 inches Mean annual air temperature: 46 to 57 degrees F Frost -free period: 116 to 170 days Farmland classification: All areas are prime farmland Map Unit Composition Statler, rarely flooded, and similar soils: 85 percent Minor components: 5 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Statler, Rarely Flooded Setting Landform: Stream terraces on flood plains Landform position (three-dimensional): Mountainbase, base slope Down -slope shape: Concave, linear Across -slope shape: Linear Parent material: Loamy alluvium Typical profile Ap - 0 to 10 inches: loam Bt - 10 to 50 inches: clay loam C - 50 to 80 inches: sandy clay loam Properties and qualities Slope: 1 to 5 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 1.98 in/hr) Depth to water table: About 48 to 72 inches Frequency of flooding: Rare Frequency of ponding: None Available water supply, 0 to 60 inches: High (about 11.5 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 2e Hydrologic Soil Group: B Ecological site: F130BY010WV - Terraces Hydric soil rating: No 21 Custom Soil Resource Report Minor Components Hemphill, undrained Percent of map unit. 5 percent Landform: Stream terraces Landform position (three-dimensional): Mountainbase, base slope Microfeatures of landform position: Swales Down -slope shape: Concave Across -slope shape: Linear, concave Hydric soil rating: Yes TsA—Toxaway loam, 0 to 2 percent slopes, frequently flooded Map Unit Setting National map unit symbol: 1 t3ym Elevation: 1,850 to 2,050 feet Mean annual precipitation: 45 to 70 inches Mean annual air temperature: 46 to 57 degrees F Frost -free period: 116 to 170 days Farmland classification: Prime farmland if drained and either protected from flooding or not frequently flooded during the growing season Map Unit Composition Toxaway, frequently flooded, and similar soils: 95 percent Minor components: 5 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Toxaway, Frequently Flooded Setting Landform: Depressions on flood plains Down -slope shape: Concave, linear Across -slope shape: Concave Parent material: Loamy alluvium Typical profile A - 0 to 26 inches: loam Cg - 26 to 80 inches: stratified sandy clay loam to sand Properties and qualities Slope: 0 to 2 percent Depth to restrictive feature: More than 80 inches Drainage class: Very poorly drained Runoff class: Very high Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 1.98 in/hr) Depth to water table: About 0 to 12 inches Frequency of flooding: NoneFrequent Frequency of ponding: None Available water supply, 0 to 60 inches: Moderate (about 8.1 inches) 22 Custom Soil Resource Report Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 4w Hydrologic Soil Group: B/D Ecological site: F130BY011 WV - Hydric Floodplains Hydric soil rating: Yes Minor Components Toxaway, undrained Percent of map unit: 5 percent Landform: Depressions on flood plains Down -slope shape: Concave, linear Across -slope shape: Concave Hydric soil rating: Yes UnB—Unison loam, 2 to 8 percent slopes Map Unit Setting National map unit symbol: 1 t41 r Elevation: 1,930 to 2,290 feet Mean annual precipitation: 60 to 68 inches Mean annual air temperature: 46 to 57 degrees F Frost -free period: 116 to 170 days Farmland classification: All areas are prime farmland Map Unit Composition Unison and similar soils: 90 percent Minor components: 1 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Unison Setting Landform: Stream terraces Landform position (two-dimensional): Footslope Landform position (three-dimensional): Mountainbase Down -slope shape: Convex Across -slope shape: Convex Parent material: Old alluvium Typical profile Ap - 0 to 10 inches: loam Bt1 - 10 to 49 inches: clay Bt2 - 49 to 80 inches: gravelly clay loam Properties and qualities Slope: 2 to 8 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained 23 Custom Soil Resource Report Runoff class: Medium Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 1.98 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Available water supply, 0 to 60 inches: Moderate (about 8.6 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 2e Hydrologic Soil Group: B Ecological site: F130BY010VW - Terraces Hydric soil rating: No Minor Components Hemphill, undrained Percent of map unit. 1 percent Landform: Depressions on stream terraces Down -slope shape: Concave Across -slope shape: Concave Hydric soil rating: Yes Map Unit Composition Water: 100 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Water Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 8w Hydric soil rating: No 24 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.nres.usda.gov/wps/portal/ n res/d eta i I/n ati o n a I/s o i Is/?cid = n res 142 p2_0 54262 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. nres. 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.nres.usda.gov/wps/portal/nres/ detail/national/landuse/rangepastu re/?cid=stelprdb1043084 25 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/ n res/d eta i I/so i Is/scie ntists/?cid=n res 142 p2_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 = n res 142 p2_05 3624 United States Department of Agriculture, Soil Conservation Service. 1961. Land capability classification. U.S. Department of Agriculture Handbook 210. http:H www.nrcs.usda.gov/lnternet/FSE—DOCUMENTS/nrcsl 42p2_052290. pdf W