LOCATION ARAPAHOE NC+VAEstablished Series
MLRA(s): 153A, 153B
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Raleigh, North Carolina
Depth Class: Very deep
Drainage Class: Very Poorly drained
Permeability: Moderately rapid
Surface Runoff: Slow
Parent Material: Loamy and sandy sediments
Slope: 0 to 2 percent
Mean Annual Air Temperature (type location): 63 degrees F.
Mean Annual Precipitation (type location): 56 inches
TAXONOMIC CLASS: Coarse-loamy, mixed, semiactive, nonacid, thermic Typic Humaquepts
TYPICAL PEDON: Arapahoe loamy fine sand (Colors are for moist soil)
Ap--0 to 11 inches; black (10YR 2/1) loamy fine sand; weak medium granular structure; very friable; many fine roots; moderately acid; clear wavy boundary.
A--11 to 17 inches; very dark brown (10YR 2/2) loamy fine sand; weak medium granular structure; very friable; few fine roots; strongly acid; gradual wavy boundary. (Combined thickeness of A horizons is 10 to 23 inches thick)
Bg1--17 to 21 inches; dark gray (10YR 4/1) fine sandy loam; weak fine subangular blocky structure; very friable; few fine roots; common fine pores; common medium faint grayish brown (10YR 5/2) iron depletions; strongly acid; gradual wavy boundary. (0 to 5 inches thick)
Bg2--21 to 30 inches; dark gray (10YR 4/1) fine sandy loam; weak fine subangular blocky structure; very friable; common fine pores; common medium faint gray (10YR 6/1) iron depletions and few medium distinct dark yellowish brown (10YR 4/4) iron masses; few thin lenses of sandy clay loam; strongly acid; gradual wavy boundary. (5 to 20 inches thick)
BCg--30 to 42 inches; dark gray (10YR 4/1) fine sandy loam; massive; very friable; common medium faint gray (10YR 6/1) iron depletions and common medium distinct dark yellowish brown (10YR 4/4) iron masses; common pockets of loamy sand and sandy clay loam; slightly acid; gradual wavy boundary. (0 to 15 inches thick)
Cg1--42 to 60 inches; gray (10YR 5/1) loamy fine sand; massive; very friable; common pockets of sand; neutral; clear smooth boundary.
Cg2--60 to 80 inches; dark greenish gray (5GY 4/1) loamy fine sand; massive; very friable; common thin lenses of loam and clay loam; neutral.
TYPE LOCATION: Pamlico County, North Carolina; 3.2 miles north of Alliance; 1.3 miles north of intersection of State Road 1200 and State Road 1202, and 0.5 mile north of farmstead; 50 feet east of farm road.
RANGE IN CHARACTERISTICS:
Solum Thickness: 24 to 60 inches
Depth to Bedrock: Greater than 60 inches
Depth to Seasonal High Water Table: 0 to 12 inches, November to May
Soil Reaction: Strongly acid to extremely acid in the upper part of the control section and surface unless limed and strongly acid to mildly alkaline in the lower part of the control section and the underlying horizons.
A or Ap horizon:
Color--hue of 10YR to 5Y or neutral, value of 2 or 3, and chroma of 0 to 2
Texture--fine sandy loam, sandy loam, loam, loamy sand, or loamy fine sand, or their mucky analogues. Organic matter content ranges from 5 to 20 percent.
Bg horizon:
Color--hue of 10YR to 5Y, value of 4 to 7, and chroma of 0 to 2
Texture--fine sandy loam, loam, or sandy loam
Redoximorphic features--iron masses in shades of brown, red or yellow and iron depletions in shades of brown, olive and gray
Cg horizon
Color--hue of 10YR to 5Y, value of 4 to 7, chroma of 0 to 2 and includes greenish gray (5GY 5/1; 5G 5/1; 5BG 5/1), or dark greenish gray (5GY 4/1; 5G 4/1; 5BG 4/1)
Texture--stratified loamy fine sand, loamy sand, fine sand, fine sandy loam, sandy loam, loam, or sand. Thin lenses of fine textures are in the Cg horizon of some pedons.
COMPETING SERIES: There are no other series in this family
GEOGRAPHIC SETTING:
Landscape: Coastal Plain
Landform: Marine Terrace
Elevation: 5 to 70 feet above mean sea level
Parent Material: Loamy and sandy sediments
Mean Annual Air Temperature: 58 to 63 degrees
Mean Annual Precipitation: 40 to 58 inches
Frost Free Period: 185 to 240 days
GEOGRAPHICALLY ASSOCIATED SOILS:
Altavista soils--moderately well drained soils (seasonal high water table 18 to 30 inches) in fine-loamy family on higher landscapes
Ballahack soils--very poorly drained soils (seasonal high water table 0 to 12 inches) in fine-loamy family having umbric epipedon thicker than 24 inches on similar landscapes
Belhaven soils--very poorly drained organic soils (seasonal high water table 0 to 12 inches) with organic layers 16 to 51 inches thick
Bertie soils--somewhat poorly drained soils (seasonal high water table 12 to 18 inches) in fine loamy family on higher landscapes
Conaby soils--very poorly drained mineral soils (seasonal high water table 0 to 12 inches) with organic surface layers 8 to 16 inches thick on similar landscapes
Deloss soils--very poorly drained soils (seasonal high water table 0 to 12 inches) in fine-loamy on similar landscapes
Dragston soils--somewhat poorly drained soils (seasonal high water table 12 to 30 inches) on higher landscapes
Cape Fear soils--very poorly drained soils (seasonal high water table 0 to 12 inches) in fine family on similar landscapes
Hyde soils--very poorly drained soils (seasonal high water table 0-1 foot) in fine-silty family on similar landscapes
Nimmo soils--poorly drained soils (seasonal high water table 0 to 12 inches) on similar landscapes
Ponzer soils--very poorly drained organic soils (seasonal high water table 0 to 12 inches) with organic layers 16 to 51 inches thick
Portsmouth soils--very poorly drained soils (seasonal high water table 0 to 12 inches) in fine-loamy family on similar landscapes
Tomotley soils--poorly drained soils (seasonal high water table 0 to 12 inches) in fine-loamy family on similar landscapes
Wasda soils--very poorly drained mineral soils (seasonal high water table 0 to 12 inches) in fine-loamy family with organic surface layers 8 to 16 inches thick on similar landscapes
Weeksville soils--very poorly drained soils (seasonal high water table 0-1 foot) with average of less than 18 percent clay in the particle size control section on similar landscapes
DRAINAGE AND PERMEABILITY:
Agricultural Drainage Class: Very poorly drained
Permeability: Moderately rapid
Runoff: Slow
USE AND VEGETATION:
Major Uses: Mostly wooded
Dominant Vegetation: Where wooded--loblolly pine, pond pine, red maple, swamp chestnut oak, sweetgum, swamp tupelo, yellow-poplar, and water oak. Understory species include greenbrier and giant switchcane, blueberries, inkberry, southern waxmyrtle, large gallberry, reybay, fetterbush lyonia, swamp cyrilla, chainfern, and honeysuckle. Where cultivated--corn, soybeans, potatoes, and small grain.
DISTRIBUTION AND EXTENT:
Distribution: Lower Coastal Plain of North Carolina and possibly Virginia and South Carolina
Extent: Moderate
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Raleigh, North Carolina
SERIES ESTABLISHED: Washington County, North Carolina; 1979.
REMARKS: The Arapahoe series were formerly mapped in the Pocomoke and Torhunta series.
Diagnostic horizons and features recognized in this pedon are :
Umbric epipedon -the zone from the surface to a depth of 17 inches (the Ap and A horizons).
Cambic horizon -from a depth of 17 inches to a depth of 42 inches (Bg1, Bg2 and BCg horizons).
Aquic feature -mottles with chromas of 2 or less below a depth of 11 inches.
ADDITIONAL DATA: None
TABULAR SERIES DATA:
SOI-5 Soil Name Slope Airtemp FrFr/Seas Precip Elevation NC0110 ARAPAHOE 0-2 58-63 185-240 40-58 5-70SOI-5 FloodL FloodH Watertable Kind Months Bedrock NC0110 NONE COMMON 0-1.0 APPARENT NOV-MAY 60-60
SOI-5 Depth Texture 3-Inch No-10 Clay% -CEC- NC0110 0-17 LFS LS 0-0 100-100 3-12 5-12 NC0110 0-17 FSL L SL 0-0 100-100 8-18 6-14 NC0110 0-17 MK-SL MK-L MK-FSL 0-0 100-100 8-18 11-24 NC0110 17-42 FSL L SL 0-0 100-100 8-18 4-15 NC0110 42-80 S LFS SL 0-0 100-100 3-18 2-10
SOI-5 Depth -pH- O.M. Salin Permeab Shnk-Swll NC0110 0-17 3.5-5.5 5.-10 0-0 6.0-20 LOW NC0110 0-17 3.5-5.5 5.-10 0-0 2.0-6.0 LOW NC0110 0-17 3.5-5.5 10-15 0-0 2.0-6.0 LOW NC0110 17-42 3.5-5.5 .5-3. 0-0 2.0-6.0 LOW NC0110 42-80 5.6-7.8 .5-1. 0-0 2.0-20 LOW