LOCATION WHITE STORE NC+VA
Established Series
Rev. AG:JAK:DTA
09/2025
WHITE STORE SERIES
MLRA(s): 136 (thermic part)
Soil Survey Regional Office (SSRO) Responsible: Southeast
Depth Class: Deep
Agricultural Drainage Class: Moderately well drained
Index Surface Runoff: High
Saturated Hydraulic Conductivity Class: Low
Shrink-Swell Potential: Very high
Landscape: Piedmont uplands
Landform: Interstream divides, ridges, and side slopes
Parent Material: Residuum weathered from Triassic sandstone, mudstone, siltstone, or shale
Slope: 2 to 25 percent
Mean Annual Air Temperature: 16 degrees C (61 degrees F)
Mean Annual Precipitation: 1118 millimeters (44 inches)
TAXONOMIC CLASS: Fine, mixed, active, thermic Oxyaquic Vertic Hapludalfs
TYPICAL PEDON: White Store clay loam--woodland. (Colors are for moist soil unless otherwise stated.)
Ap--0 to 13 centimeters (0 to 5 inches); yellowish red (5YR 4/6) clay loam; weak medium subangular blocky structure; firm; very strongly acid; abrupt smooth boundary. (13 to 25 centimeters (5 to 10 inches) thick)
Btss1--13 to 51 centimeters (5 to 20 inches); red (2.5YR 4/6) clay; weak coarse prismatic structure parting to moderate coarse angular blocky; extremely firm, extremely sticky, extremely plastic; common distinct clay films on faces of peds; common slickensides; very strongly acid; clear smooth boundary.
Btss2--51 to 107 centimeters (20 to 42 inches); red (2.5YR 4/6) clay; moderate medium subangular blocky structure; extremely firm, extremely sticky, extremely plastic; common distinct clay films on faces of peds; common slickensides; common fine prominent pinkish gray (5YR 6/2) iron depletions; extremely acid; clear smooth boundary. (Combined thickness of the Btss horizons is 38 to 114 centimeters (15 to 45 inches)
BC--107 to 122 centimeters (42 to 48 inches); red (2.5YR 4/6) clay; weak medium subangular blocky structure; very firm, very sticky, very plastic; extremely acid; gradual smooth boundary. (0 to 25 centimeters (0 to 10 inches) thick)
C--122 to 132 centimeters (48 to 52 inches); dark reddish brown (2.5YR 3/4) clay loam saprolite; massive; firm; extremely acid; clear smooth boundary. (8 to 46 centimeters (3 to 18 inches) thick)
Cr--132 to 152 centimeters (52 to 60 inches); weathered, moderately fractured fine-grained Triassic siltstone and mudstone bedrock.
TYPE LOCATION: Anson County, North Carolina; 7.4 miles south of Wadesboro on North Carolina Highway 109, about 1.5 miles west on Secondary Road 1216, about 200 feet south of road, in woods. USGS Russellville, North Carolina topographic quadrangle.
Latitude--34.891944
Longitude-- -80.184167
Datum--WGS84
RANGE IN CHARACTERISTICS:
Solum thickness: 51 to 386 centimeters (20 to 50 inches)
Depth to soft bedrock: 102 to 152 centimeters (40 to 60 inches)
Depth to hard bedrock: Greater than 183 centimeters (72 inches)
Depth to Seasonal High Water Table: 30 to 61 centimeters (12 to 24 inches)
Rock Fragment Content: 0 to 15 percent, by volume, throughout
Soil Reaction: Strongly acid to extremely acid, unless limed.
Thickness of the clayey Bt horizons having COLE of 0.09 or more: 51 to 127 centimeters (20 to 50 inches)
Extractable aluminum is high (10 to 25 me/100g) in the Bt horizon.
RANGE OF INDIVIDUAL HORIZONS:
A or Ap horizon:
Color--hue of 7.5YR to 2.5Y, value of 4 to 6, chroma of 2 to 4
Texture--sandy loam, fine sandy loam, loam, or silt loam. Eroded phases are clay loam, sandy clay loam, silty clay loam, or clay.
E horizon, (if it occurs):
Color--hue of 7.5YR to 2.5Y, value of 4 to 6, chroma of 3 to 6
Texture--sandy loam, fine sandy loam, loam, or silt loam
BA or BE horizon, (if it occurs):
Color--hue of 2.5YR to 10YR, value of 3 to 6, chroma of 3 to 8
Texture--clay loam, sandy clay loam, silty clay, or silty clay loam
Redoximorphic features: iron depletions with chroma of 2 or less are below the upper 25 centimeters (10 inches) of the Bt horizon.
Bt horizon, (if it occurs):
Color--hue of 2.5YR to 10YR, value of 3 to 6, chroma of 3 to 8.
Texture--clay, but thin layers of clay loam, sandy clay loam, sandy clay, silty clay, or silty clay loam are permitted in the upper and lower Bt horizons.
Redoximorphic features--depletions and concentrations in shades of red, brown, yellow, or gray may be present. Iron depletions with chroma of 2 or less are below the upper 25 centimeters (10 inches) of the Bt horizon.
Btss horizon:
Color--hue of 2.5YR to 10YR, value of 3 to 6, chroma of 3 to 8
Texture-clay
Redoximorphic features--depletions and concentrations in shades of red, brown, yellow, or gray may be present. Redoximorphic depletions with chroma of 2 or less are below the upper 25 centimeters (10 inches) of the Bt horizon.
BC horizon:
Color--hue of 2.5YR to 2.5Y, value of 3 to 6, chroma of 3 to 8
Texture--sandy loam, loam, sandy clay loam, clay loam, silt loam, silty clay loam, or clay
Redoximorphic features--depletions and concentrations in shades of red, brown, yellow, or gray may be present
C horizon:
Color--hue of 2.5YR to 2.5Y, value of 3 to 6, chroma of 3 to 8 or
may be mottled in shades of these colors or contain mottles in shades of red, brown, yellow, or gray
Texture--variable and ranges from loamy sand to clay saprolite
Cg horizon, (if it occurs):
Color--hue of 2.5YR to 2.5Y, value of 3 to 6, chroma of 1 or 2, or it is neutral with value of 3 to 8 or may be mottled in shades of these colors or contain mottles in shades of red, brown, yellow, or gray.
Texture--variable and ranges from loamy sand to clay saprolite
Cr horizon:
Color--variable
Texture--weathered Triassic fine-grained sandstone, mudstone, siltstone, or shale
COMPETING SERIES:
Iredell soils--formed in material weathered from diabase, diorite, gabbro, and other rocks high in ferro-magnesium minerals.
Polkton soils--have a depth to paralithic contact at 51 to 102 centimeters (20 to 40 inches)
GEOGRAPHIC SETTING:
Landscape: Piedmont uplands
Landform: Ridges and hill slopes
Landform: Interstream divides, ridges, and side slopes
Parent Material: Residuum weathered from Triassic sandstone, mudstone, siltstone, or shale
Avereage Annual Air Temperature: 15 to 18 degrees C (59 to 65 degrees F)
Average Annual Precipitation: 1016 to 1270 millimeters (40 to 50 inches)
Frost Free Period: 180 to 260 days
GEOGRAPHICALLY ASSOCIATED SOILS:
Creedmoor soils--are very deep and lack Btss horizons
Enon soils--are well drained, very deep, and formed in material weathered from diabase, diorite, gabbro, and other rocks high in ferro-magnesium minerals.
Granville soils--are well drained, very deep, and fine-loamy
Green Level soils--are somewhat poorly drained and very deep
Mayodan soils--well drained, very deep, and lack Btss horizons
Peakin soils--are well drained and lack Btss horizons
Pinoka soils--are well drained and fine-loamy
Pittsboro soils--have a depth to paralithic contact at 51 to 102 centimeters (20 to 40 inches)and formed in material weathered from diabase, diorite, gabbro, and other rocks high in ferro-magnesium minerals.
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Agricultural Drainage Class: Moderately well drained
Index Surface Runoff: High
Saturated Hydraulic Conductivity: Low
USE AND VEGETATION:
Major Uses: Woodland
Dominant vegetation: Where wooded--loblolly and shortleaf pines, oaks, hickories, and gums. Where cultivated--small grains, corn, cotton, and tobacco.
SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Auburn, Alabama
DISTRIBUTION AND EXTENT:
Distribution: North Carolina, Virginia, and possibly South Carolina
Extent: Moderately extensive
SERIES ESTABLISHED: Anson County, North Carolina; 1915.
REMARKS: The type location description was modified based on field examination and transect data collected 5/91. The 9/2025 revision reformatted the description. No data was changed. The 9/2025 description moved the type location from Durham County, North Carolina back to Anson County, North Carolina. The site in Durham County is now covered by an industrial park.
Diagnostic features and horizons recognized in this pedon are:
Ochric epipedon: the zone from 0 to 13 centimeters (0 to 5 inches) (Ap horizon).
Argillic horizon: the zone from 13 to 107 centimeters (5 to 42 inches) (Btss horizons).
Slickensides-presence of slickensides in the zone from 13 to 107 centimeters (5 to 42 inches (Btss1 and Btss2 horizons)
Vertic feature: cracks within 127 centimeters (50 inches) of the soil surface that are 5 mm or more wide through a thickness of 30 centimeters (12 inches) or more for some time in normal years, and slickensides or wedge-shaped aggregates in a layer 15 centimeters (6 inches) or more thick that has its upper boundary within 127 centimeters (50 inches) of the soil surface; or a linear extensibility of 6 centimeters (2.5 inches) or more between the surface and either a depth of 102 centimeters (40 inches) or a paralithic contact, whichever is shallower
Oxyaquic feature: Saturation with water in one or more layers within 102 centimeters (40 inches) of the surface in normal years for either or both 20 or more consecutive days or 30 or more cumulative days.
ADDITIONAL DATA: McCracken. R. J.; Weed, S. B.; Goldston, E. F., Planosolic Piedmont soils of North Carolina: I Morphology and Composition. Soil Science, ol. 98, No. 1, July, 1964. and
Griffin. R. W.; Buol, S.W.; Soil and Saprolite Characteristics of Vertic and Aquic Hapludults Derived from Triassic Basin Sandstones. Soil Sci. Soc. Am. J. Vol. 52, 1094-1099 (1988).
TABULAR SERIES DATA:
SOI-5 Soil Name Slope Airtemp FrFr/Seas Precip Elevation
NC0059 WHITE STORE 2-25 58-65 160-220 40-50 240-450
SOI-5 FloodL FloodH Watertable Kind Months Bedrock Hardness
NC0059 NONE 1.0-2.0 PERCHED DEC-MAR 40-72 SOFT
SOI-5 Depth Texture 3-Inch No-10 Clay% -CEC-
NC0059 0-5 SL FSL 0-3 95-100 5-20 5-15
NC0059 0-5 L SIL 0-3 80-100 5-27 5-15
NC0059 0-5 CL C 0-3 95-100 27-45 5-15
NC0059 5-42 C 0-3 90-100 45-70 20-40
NC0059 42-48 L CL C 0-3 85-100 18-45 5-20
NC0059 48-52 SL L CL 0-3 85-100 12-40 5-20
NC0059 53-60 WB - - - -
SOI-5 Depth -pH- O.M. Salin Permeab Shnk-Swll
NC0059 0-5 5.6-6.0 .5-2. 0-0 0.6-2.0 LOW
NC0059 0-5 5.6-6.0 .5-2. 0-0 0.6-2.0 LOW
NC0059 0-5 4.5-5.5 0.-.5 0-0 0.06-0.6 HIGH
NC0059 6-35 4.5-5.5 0.-.5 0-0 0.0-0.06 VERY HIGH
NC0059 35-53 4.5-5.5 0.-.5 0-0 0.06-0.2 MODERATE
NC0059 53-60 - - - -
________________________________________
National Cooperative Soil Survey
U.S.A.