LOCATION NIMMO VA+NCEstablished Series
TAXONOMIC CLASS: Coarse-loamy, mixed, semiactive, thermic Typic Endoaquults
TYPICAL PEDON: Nimmo loam -in a cultivated field. (Colors are for moist soil.)
Ap--0 to 7 inches; dark gray (10YR 4/1) loam; weak fine granular structure; friable, nonsticky, slightly plastic; many fine roots; common clean sand grains; strongly acid; abrupt smooth boundary. (0 to 12 inches thick)
Btg1--7 to 14 inches; light gray (10YR 6/1) fine sandy loam; weak fine subangular blocky structure; friable; slightly sticky, slightly plastic; many fine and few medium and coarse roots; common medium prominent yellowish brown (10YR 5/6) iron masses; many sand grains coated and bridged with clay; strongly acid; clear smooth boundary.
Btg2--14 to 25 inches; gray (10YR 5/1) loam; moderate medium subangular blocky structure; friable, slightly sticky, slightly plastic; common fine medium and coarse roots; many medium prominent yellowish brown (10YR 5/6) iron masses; many sand grains coated and bridged with clay; few faint clay films on faces of peds; very strongly acid; clear smooth boundary.
Btg3--25 to 33 inches; gray (10YR 5/1) fine sandy loam; weak fine subangular blocky structure; friable; slightly sticky, slightly plastic; common fine and medium roots; many medium prominent yellowish brown (10YR 5/6) iron masses; many sand grains coated and bridged with clay; few faint clay films on faces of peds; very strongly acid; clear smooth boundary. (combined thickness of Btg horizon is 15 to 40 inches thick)
2Cg--33 to 60 inches; light gray (10YR 7/1) fine sand; single grain; loose; common very fine black mineral grains; few medium yellowish brown (10YR 5/4) sand grains; few coarse sand grains; strongly acid.
TYPE LOCATION: City of Virginia Beach, Virginia; 4.5 miles south of Pungo; approximately .85 miles southeast of the junction of Vaughan Road and Princess Anne Road, and .8 miles northeast of the junction of Mill Landing Road and Princess Anne Road.
RANGE IN CHARACTERISTICS:
Solum Thickness: 25 to 45 inches
Depth to Bedrock: Greater than 60 inches
Depth to Seasonal High Water Table: 0 to 12 inches, December to April
Soil Reaction: Extremely acid through strongly acid throughout the soil, unless limed
A or Ap horizon
Color--hue of 10YR to 5Y or is neutral, value of 2 to 5, and chroma of 1 or 2. Where value is 2 or 3, the horizon is less than 6 inches thick.
TEXTURE--loamy sand, loamy fine sand, sandy loam, fine sandy loam, or loam
E horizon (if it occurs):
Color--hue of 10YR to 5Y or is neutral, value of 4 to 7, and chroma of 1 or 2
Texture--loamy sand, loamy fine sand, sandy loam, fine sandy loam, or loam
BE horizon (if it occurs)
Color--hue of 10YR to 5Y or is neutral, value of 4 to 7, and chroma of 1 or 2
Texture--loamy sand, loamy fine sand, sandy loam, fine sandy loam, or loam
Btg horizon:
Color--hue of 10YR to 5Y or is neutral, value of 4 to 7, and chroma of 0 to 2, but dominantly 1
Texture--loam, fine sandy loam or sandy loam. Some pedons have thin layers of silt loam or sandy clay loam.
Redoximorphic features--iron masses in shades of brown, red or yellow and iron depletions in shades of brown, olive and gray
2C or C horizon (if it occurs):
Color--hue of 7.5YR to 5Y, value of 3 to 8, and chroma of 3 to 8
Texture--coarse sand, sand, loamy sand, loamy fine sand, or fine sand in the fine earth fraction. Strata or layers of finer texture are in some pedons.
2Cg or Cg horizon
Color--hue of 7.5YR to 2.5Y or is neutral, value of 3 to 8, and chroma of 0 to 2
Texture--coarse sand, sand, loamy sand, loamy fine sand, or fine sand in the fine-earth fraction. Strata of finer-texture are in some pedons
Redoximorphic features (if they occur)--iron masses in shades of brown, red or yellow and iron depletions in shades of brown, olive and gray
COMPETING SERIES: There are no other known series in the same family
GEOGRAPHIC SETTING:
Landscape: Coastal Plain
Landform: Marine Terrace
Elevation: 5 to 150 feet above mean sea level (elevation at the type location is about 6 feet)
Parent Material: Loamy and sandy sediments
Mean Annual Air Temperature: 57 to 65 degrees
Mean Annual Precipitation: 35 to 45 inches
Frost Free Period: 175 to 210 days
GEOGRAPHICALLY ASSOCIATED SOILS:
Acredale soils--poorly drained soils (seasonal high water table 0 to 12 inches) in fine-silty family on similar landscapes
Bojac soils--well drained soils (seasonal high water table 48 to 72 inches) on higher landscapes
Dragston soils--somewhat poorly drained soils (seasonal high water table 12 to 30 inches) on higher landscapes
Munden soils--moderately well drained soils (seasonal high water table 18 to 30 inches) on higher landscapes
Portsmouth soils--very poorly drained soils (seasonal high water table 0 to 12 inches) in fine-loamy family on similar landscapes
Roanoke soils--poorly drained soils (seasonal high water table 0 to 12 inches) in fine family on similar landscapes
State soils--well drained soils (seasonal high water table 48 to 72 inches) in fine loamy family on higher landscapes
Tetotum soils--moderately well drained soils (seasonal high water table 18 to 30 inches) in fine-loamy family on higher landscapes
Tomotley soils--poorly drained soils (seasonal high water table 0 to 12 inches) in fine-loamy family on similar landscapes
DRAINAGE AND PERMEABILITY:
Agricultural Drainage Class: Poorly drained
Permeability: Moderate in the A and B horizons and moderately rapid to rapid in the C horizons
Runoff: Slow
USE AND VEGETATION:
Major Uses: Mostly cultivated
Dominant Vegetation: Where cultivated--corn, soybeans, small grain, truck crops, and pasture. Where wooded--loblolly pine, willow oak, yellow poplar, red maple, water tupelo, sweetgum, blackgum, and water oak. Understory plants include inkberry, large gallberry, southern bayberry,
DISTRIBUTION AND EXTENT:
Distribution: Lower Coastal Plain of Virginia, North Carolina, Maryland and possibly Alabama
Extent: Moderate
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Raleigh, North Carolina
SERIES ESTABLISHED: City of Virginia Beach, Virginia, 1980.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
a. Ochric epipedon -the zone from the surface to a depth of 7 inches (Ap horizon).
b. Argillic horizon -the zone from 7 to 33 inches (Btg horizon).
SIR=VA0161
MLRA=133A,153A,153B
ADDITIONAL DATA:
REVISED=9/6/95,MHC
TABULAR SERIES DATA:
SOI-5 Soil Name Slope Airtemp FrFr/Seas Precip Elevation VA0161 NIMMO 0-2 57-65 175-210 35-45 5-150SOI-5 FloodL FloodH Watertable Kind Months Bedrock VA0161 NONE 0-1.0 APPARENT DEC-APR 60-60
SOI-5 Depth Texture 3-Inch No-10 Clay% -CEC- VA0161 0-7 L FSL SL 0-0 95-100 4-14 VA0161 0-7 LS LFS 0-0 95-100 3-10 VA0161 7-33 L FSL SL 0-0 95-100 8-18 VA0161 33-60 LS FS S 0-0 70-100 1-8
SOI-5 Depth -pH- O.M. Salinity Permeability Shrink-Swell VA0161 0-7 3.6-5.5 1.-3. 0-0 2.0-6.0 LOW VA0161 0-7 3.6-5.5 1.-2. 0-0 2.0-6.0 LOW VA0161 7-33 3.6-5.5 0.-.5 0-0 0.6-2.0 LOW VA0161 33-60 3.6-5.5 0.-.5 0-0 2.0-20 LOW