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HomeMy WebLinkAboutNCC222489_Site Plan or Location Map_20220712623`00 35° 53' 26" N 1 YrV , g N r g r n 0 93 Hydrologic Soil Group —Randolph County, North Carolina 623700 624100 624500 624900 35° 51' 42" N 623700 624100 624500 624900 Map Scale: 1:15,700 if printed on A portrait (8.5" x 11") sheet. N Myers 0 200 400 800 1200 Feet 0 500 1000 2000 3000 Map projection: Web Mercator Coner000rdinates: WGS84 Edge tics: lfrM Zone 17N WGS84 usoA Natural Resources Web Soil Survey Conservation Service National Cooperative Soil Survey 625700 35° 53' 26" N 8 N r g r n g 0 g 35° 51' 42" N 625700 in 4/18/2022 Page 1 of 5 Hydrologic Soil Group —Randolph County, North Carolina MAP LEGEND Area of Interest (AOI) 0 Area of Interest (AOI) Soils Soil Rating Polygons 0 A 0 A/D 0 B 0 B/D C 0 C/D 0 D 0 Not rated or not available Soil Rating Lines r 0 A r 0 A/D B B/D N 0 C r 0 C/D r 0 D r 0 Not rated or not available Soil Rating Points 0 A 0 A/D B S B/D ❑ C 0 C/D 0 D ❑ Not rated or not available Water Features Streams and Canals Transportation — Rails ­0 Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography MAP INFORMATION The soil surveys that comprise your AOI were mapped at 1:24,000. 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: Randolph County, North Carolina Survey Area Data: Version 27, Jan 21, 2022 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Jul 28, 2019—Jul 30, 2019 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. usoA Natural Resources Web Soil Survey 4/18/2022 Conservation Service National Cooperative Soil Survey Page 2 of 5 Hydrologic Soil Group -Randolph County, North Carolina Hydrologic Soil Group Map unit symbol Map unit name Rating Acres in AOI Percent of AOI ApB Appling sandy loam, 2 to B 2.2 0.6% 6 percent slopes ApC Appling sandy loam, 6 to B 54.4 15.4% 10 percent slopes CcC Cecil sandy loam, 8 to A 15.0 4.2% 15 percent slopes CmA Chewacla and B/D 15.7 4.4% Wehadkee soils, 0 to 2 percent slopes, frequently flooded HeB Helena sandy loam, 2 to D 10.0 2.8% 6 percent slopes McB2 Mecklenburg clay loam, C 5.8 1.6% 2 to 8 percent slopes, moderately eroded PaC Pacolet fine sandy loam, B 11.7 3.3% 8 to 15 percent slopes RvA Riverview sandy loam, 0 B 28.1 7.9% to 2 percent slopes, frequently flooded VaB Vance sandy loam, 2 to C 53.8 15.2% 8 percent slopes VaC Vance sandy loam, 8 to C 55.9 15.8% 15 percent slopes W Water 0.8 0.2% WtB Wynott-Enon complex, 2 D 20.5 5.8% to 8 percent slopes WtC Wynott-Enon complex, 8 D 5.0 1.4% to 15 percent slopes WvB2 Wynott-Enon complex, 2 D 29.2 8.3% to 8 percent slopes, moderately eroded WvC2 Wynott-Enon complex, 8 D 45.9 13.0% to 15 percent slopes, moderately eroded Totals for Area of Interest 364.0 100.0% USDA Natural Resources Web Soil Survey 4/18/2022 Conservation Service National Cooperative Soil Survey Page 3 of 5 Hydrologic Soil Group —Randolph County, North Carolina Description Hydrologic soil groups are based on estimates of runoff potential. Soils are assigned to one of four groups according to the rate of water infiltration when the soils are not protected by vegetation, are thoroughly wet, and receive precipitation from long -duration storms. The soils in the United States are assigned to four groups (A, B, C, and D) and three dual classes (A/D, B/D, and C/D). The groups are defined as follows: Group A. Soils having a high infiltration rate (low runoff potential) when thoroughly wet. These consist mainly of deep, well drained to excessively drained sands or gravelly sands. These soils have a high rate of water transmission. Group B. Soils having a moderate infiltration rate when thoroughly wet. These consist chiefly of moderately deep or deep, moderately well drained or well drained soils that have moderately fine texture to moderately coarse texture. These soils have a moderate rate of water transmission. Group C. Soils having a slow infiltration rate when thoroughly wet. These consist chiefly of soils having a layer that impedes the downward movement of water or soils of moderately fine texture or fine texture. These soils have a slow rate of water transmission. Group D. Soils having a very slow infiltration rate (high runoff potential) when thoroughly wet. These consist chiefly of clays that have a high shrink -swell potential, soils that have a high water table, soils that have a claypan or clay layer at or near the surface, and soils that are shallow over nearly impervious material. These soils have a very slow rate of water transmission. If a soil is assigned to a dual hydrologic group (A/D, B/D, or C/D), the first letter is for drained areas and the second is for undrained areas. Only the soils that in their natural condition are in group D are assigned to dual classes. Rating Options Aggregation Method. Dominant Condition USDA Natural Resources Web Soil Survey 4/18/2022 Conservation Service National Cooperative Soil Survey Page 4 of 5 Hydrologic Soil Group —Randolph County, North Carolina Aggregation is the process by which a set of component attribute values is reduced to a single value that represents the map unit as a whole. A map unit is typically composed of one or more "components". A component is either some type of soil or some nonsoil entity, e.g., rock outcrop. For the attribute being aggregated, the first step of the aggregation process is to derive one attribute value for each of a map unit's components. From this set of component attributes, the next step of the aggregation process derives a single value that represents the map unit as a whole. Once a single value for each map unit is derived, a thematic map for soil map units can be rendered. Aggregation must be done because, on any soil map, map units are delineated but components are not. For each of a map unit's components, a corresponding percent composition is recorded. A percent composition of 60 indicates that the corresponding component typically makes up approximately 60% of the map unit. Percent composition is a critical factor in some, but not all, aggregation methods. The aggregation method "Dominant Condition" first groups like attribute values for the components in a map unit. For each group, percent composition is set to the sum of the percent composition of all components participating in that group. These groups now represent "conditions" rather than components. The attribute value associated with the group with the highest cumulative percent composition is returned. If more than one group shares the highest cumulative percent composition, the corresponding "tie -break" rule determines which value should be returned. The "tie -break" rule indicates whether the lower or higher group value should be returned in the case of a percent composition tie. The result returned by this aggregation method represents the dominant condition throughout the map unit only when no tie has occurred. Component Percent Cutoff.- None Specified Components whose percent composition is below the cutoff value will not be considered. If no cutoff value is specified, all components in the database will be considered. The data for some contrasting soils of minor extent may not be in the database, and therefore are not considered. Tie -break Rule: Higher The tie -break rule indicates which value should be selected from a set of multiple candidate values, or which value should be selected in the event of a percent composition tie. USDA Natural Resources Web Soil Survey 4/18/2022 Conservation Service National Cooperative Soil Survey Page 5 of 5