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Home My WebLink About20210672 Ver 1_20181011_08165808695_17_Hydric_Rating_by_Map_Unit_20210615Hydric Rating by Map Unit—Henderson County, North Carolina (Shoal Creek Road Soils) Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 10/11/2018 Page 1 of 5390012039001903900260390033039004003900470390054039006103900680390012039001903900260390033039004003900470390054039006103900680354410354480354550354620354690354760354830 354410 354480 354550 354620 354690 354760 354830 35° 14' 19'' N 82° 36' 0'' W35° 14' 19'' N82° 35' 43'' W35° 14' 0'' N 82° 36' 0'' W35° 14' 0'' N 82° 35' 43'' WN Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 17N WGS84 0 100 200 400 600 Feet 0 40 80 160 240 Meters Map Scale: 1:2,820 if printed on A portrait (8.5" x 11") sheet. Soil Map may not be valid at this scale. MAP LEGEND MAP INFORMATION Area of Interest (AOI) Area of Interest (AOI) Soils Soil Rating Polygons Hydric (100%) Hydric (66 to 99%) Hydric (33 to 65%) Hydric (1 to 32%) Not Hydric (0%) Not rated or not available Soil Rating Lines Hydric (100%) Hydric (66 to 99%) Hydric (33 to 65%) Hydric (1 to 32%) Not Hydric (0%) Not rated or not available Soil Rating Points Hydric (100%) Hydric (66 to 99%) Hydric (33 to 65%) Hydric (1 to 32%) Not Hydric (0%) Not rated or not available Water Features Streams and Canals Transportation Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography The soil surveys that comprise your AOI were mapped at 1:20,000. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Henderson County, North Carolina Survey Area Data: Version 18, Sep 10, 2018 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: May 21, 2015—Nov 28, 2017 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. Hydric Rating by Map Unit—Henderson County, North Carolina (Shoal Creek Road Soils) Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 10/11/2018 Page 2 of 5 Hydric Rating by Map Unit Map unit symbol Map unit name Rating Acres in AOI Percent of AOI BaB Bradson gravelly loam, 2 to 7 percent slopes 0 0.3 1.8% BaC Bradson gravelly loam, 7 to 15 percent slopes 0 0.1 0.7% Co Codorus loam (arkaqua)5 12.2 65.6% HyC Hayesville loam, 7 to 15 percent slopes 0 0.7 4.0% HyE Hayesville loam, 15 to 25 percent slopes 0 2.2 11.6% TeC Tate fine sandy loam, 7 to 15 percent slopes 0 3.1 16.4% Totals for Area of Interest 18.7 100.0% Hydric Rating by Map Unit—Henderson County, North Carolina Shoal Creek Road Soils Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 10/11/2018 Page 3 of 5 Description This rating indicates the percentage of map units that meets the criteria for hydric soils. Map units are composed of one or more map unit components or soil types, each of which is rated as hydric soil or not hydric. Map units that are made up dominantly of hydric soils may have small areas of minor nonhydric components in the higher positions on the landform, and map units that are made up dominantly of nonhydric soils may have small areas of minor hydric components in the lower positions on the landform. Each map unit is rated based on its respective components and the percentage of each component within the map unit. The thematic map is color coded based on the composition of hydric components. The five color classes are separated as 100 percent hydric components, 66 to 99 percent hydric components, 33 to 65 percent hydric components, 1 to 32 percent hydric components, and less than one percent hydric components. In Web Soil Survey, the Summary by Map Unit table that is displayed below the map pane contains a column named 'Rating'. In this column the percentage of each map unit that is classified as hydric is displayed. Hydric soils are defined by the National Technical Committee for Hydric Soils (NTCHS) as soils that formed under conditions of saturation, flooding, or ponding long enough during the growing season to develop anaerobic conditions in the upper part (Federal Register, 1994). Under natural conditions, these soils are either saturated or inundated long enough during the growing season to support the growth and reproduction of hydrophytic vegetation. The NTCHS definition identifies general soil properties that are associated with wetness. In order to determine whether a specific soil is a hydric soil or nonhydric soil, however, more specific information, such as information about the depth and duration of the water table, is needed. Thus, criteria that identify those estimated soil properties unique to hydric soils have been established (Federal Register, 2002). These criteria are used to identify map unit components that normally are associated with wetlands. The criteria used are selected estimated soil properties that are described in "Soil Taxonomy" (Soil Survey Staff, 1999) and "Keys to Soil Taxonomy" (Soil Survey Staff, 2006) and in the "Soil Survey Manual" (Soil Survey Division Staff, 1993). If soils are wet enough for a long enough period of time to be considered hydric, they should exhibit certain properties that can be easily observed in the field. These visible properties are indicators of hydric soils. The indicators used to make onsite determinations of hydric soils are specified in "Field Indicators of Hydric Soils in the United States" (Hurt and Vasilas, 2006). References: Federal Register. July 13, 1994. Changes in hydric soils of the United States. Federal Register. September 18, 2002. Hydric soils of the United States. Hydric Rating by Map Unit—Henderson County, North Carolina Shoal Creek Road Soils Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 10/11/2018 Page 4 of 5 Hurt, G.W., and L.M. Vasilas, editors. Version 6.0, 2006. Field indicators of hydric soils in the United States. Soil Survey Division Staff. 1993. Soil survey manual. Soil Conservation Service. U.S. Department of Agriculture Handbook 18. 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. Soil Survey Staff. 2006. Keys to soil taxonomy. 10th edition. U.S. Department of Agriculture, Natural Resources Conservation Service. Rating Options Aggregation Method: Percent Present Component Percent Cutoff: None Specified Tie-break Rule: Lower Hydric Rating by Map Unit—Henderson County, North Carolina Shoal Creek Road Soils Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 10/11/2018 Page 5 of 5