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Hydrologic Soil Group—Albemarle County,Virginia Hydrologic Soil Group
Hydrologic Soil Group
Hydrologic Soil Group—Summary by Map Unit—Albemarle County,Virginia(VA003)
Map unit symbol Map unit name Rating Acres in AOl Percent of AOI
10 Buncombe loamy sand A 0.4 0.5%
14D Chester loam,15 to 25 B 7.7 9.9%
percent slopes
14E Chester loam,25 to 45 B 17.1 22.1%
percent slopes
15D Chester very stony loam, B 3.2 4.1%
15 to 25 percent
slopes
19B Cullen loam,2 to 7 B 4.1 5.3%
percent slopes
19C Cullen loam,7 to 15 B 8.9 11.5%
percent slopes
36C Hayesviiie loam,7 to 15 B 3.7 4.7%
percent slopes
36D Hayesvilie loam,15 to 25 B 0.7 0.9%
percent slopes
56B MeadowviNe loam,2 to 7 A 2.5 3.2%
percent slopes
66E Parker very stony loam, A 0.5 0.6%
25 to 45 percent
slopes
76 Riverview loam B 25.4 32.9%
W Water 3.3 4.3%
Totals for Area of Interest 77.3 100.0%
USDA Natural Resources Web Soil Survey 9/8/2014
ala Conservation Service National Cooperative Soil Survey Page 3 of 4
Hydrologic Soil Group—Albemarle County,Virginia Hydrologic Soil Group
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
Component Percent Cutoff: None Specified
Tie-break Rule: Higher
Natural Resources Web Soil Survey 9/8/2014
ME Conservation Service National Cooperative Soil Survey Page 4 of 4