LOCATION SCAPO                   SC

Established Series
CMO:CDG:JMR
04/2022

SCAPO SERIES

MLRA(s): 133A-Southern Coastal Plain, 153A-Atlantic Coast Flatwoods
TAXONOMIC CLASS: Fine, kaolinitic, acid, thermic Cumulic Humaquepts
Depth Class: Very deep
Drainage Class (Agricultural): Very poorly drained
Internal Free Water Occurrence: Very shallow, persistent
Flooding Frequency and Duration: Frequent
Ponding Frequency and Duration: None
Slowest Saturated Hydraulic Conductivity: Moderately low
Landscape: Lower to upper coastal plain
Landform: Flood plain
Geomorphic Component: Swamp
Parent Material: Alluvium
Slope: 0 to 2 percent
Elevation (type location): 98 feet (30 m)
Mean Annual Air Temperature (type location): 63 degrees F (17.1 C)
Mean Annual Precipitation (type location): 46 inches (1220 mm)

TAXONOMIC CLASS: fine, kaolinitic, acid, thermic Cumulic Humaquepts

TYPICAL PEDON: Scapo mucky clay in an area of Scapo-Mouzon complex. (Colors are for moist soil.)

A1--0 to 15 centimeters (about 0 to 6 inches); very dark brown (10YR 2/2) mucky clay; moderate medium subangular blocky structure; friable; slightly sticky, slightly plastic; deformable; very strongly acid; clear wavy boundary.

A2--15 to 58 centimeters (about 6 to 23 inches); black (10YR 2/1) clay; massive; firm; moderately sticky, moderately plastic; deformable; strongly acid; clear wavy boundary.

A3--58 to 86 centimeters (about 23 to 34 inches); black (2.5Y 2.5/1) clay; massive; firm; moderately sticky, moderately plastic; deformable; very strongly acid; clear wavy boundary.

Cg1--86 to 117 centimeters (about 34 to 46 inches); gray (10YR 6/1) clay; massive; firm; moderately sticky, moderately plastic; semi-deformable; few prominent discontinuous black (10YR 2/1) organic stains; common medium distinct masses of oxidized iron; very strongly acid; clear wavy boundary.

2Cg2--117 to 147 centimeters (about 46 to 58 inches); grayish brown (10YR 5/2) coarse sandy loam; massive; very friable; common medium distinct yellowish brown (10YR 5/6) masses of oxidized iron and common medium distinct dark gray (10YR 4/1) iron depletions; very strongly acid; abrupt wavy boundary.

2Cg3--147 to 203 centimeters (about 58 to 80 inches); grayish brown (10YR 5/2) coarse sand; single grain; loose; common medium prominent yellowish brown (10YR 5/4) masses of oxidized iron; extremely acid.

TYPE LOCATION: Sumter County, South Carolina; located; 1.74 mile south from the intersection of Myrtle Beach Hwy (U.S. 378) and Brick Church Rd (State Road 527); 0.52 miles southeast on farm rd; 0.43 miles west into swamp. Mayesville, South Carolina; USGS 7.5 Minute Quadrangle, NAD83. lat. 33 degrees, 52 minutes, 41.00 seconds N. and long. 80 degrees, 8 minutes, 55.00 seconds W.

RANGE IN CHARACTERISTICS:
Depth to Bedrock: Greater than 80 inches
Depth to Seasonal High Water Table: 0 to 12 inches, November to May
Rock fragment content: Below 40 inches, 0 to 35 percent, by volume, mostly rounded quartz gravel
Soil Reaction: Extremely acid to strongly acid
Other Features: Some pedons have a few inches of recent alluvium deposited over the dark colored A horizon or thin (less than 8 inches thick) organic layers

RANGE OF INDIVIDUAL HORIZONS: Oa horizon (where present):

O horizon (where present):
Color--hue of 10YR, value of 2 or 3, chroma of 1 or 2, hue of 2.5Y, value of 2.5 or 3, chroma of 1 or 2, or is neutral with value of 2.5 or 3
Texture--muck

A horizon:
Color--hue of 10YR, value of 2 or 3, chroma of 1 or 2, hue of 2.5Y or 5Y, value of 2.5 or 3, chroma of 1 or 2, or is neutral with value of 2.5 or 3
Texture (fine-earth fraction)--clay loam or clay. Some pedons have thin strata of sandy clay loam.
Redoximorphic features (where present)--masses of oxidized iron in shades of red, yellow, or brown and iron depletions in shades of gray
Other features--Organic matter content of the A horizon ranges from 3 to about 35 percent

Cg horizon:
Color--hue of 10YR to 5Y, value of 4 to 8, chroma of 1 to 2, or is neutral with value of 4 to 7
Texture (fine-earth fraction)--clay loam, sandy clay, or clay. Some pedons have thin strata of loam or sandy clay loam.
Redoximorphic features (where present)--masses of oxidized iron in shades of red, yellow, or brown and iron depletions in shades of gray

2Cg horizon (where present):
Color--hue of 10YR to 5Y, value of 4 to 8, chroma of 1 to 2, or is neutral with value of 4 to 7
Texture (fine-earth fraction)--coarse sand, sand, fine sand, loamy coarse sand, loamy sand, loamy fine sand, coarse sandy loam, sandy loam, or fine sandy loam.
Redoximorphic features (where present)--masses of oxidized iron in shades of red, yellow, or brown and iron depletions in shades of gray

COMPETING SERIES:
There are no other known series in this family.

GEOGRAPHIC SETTING:
Landscape: Lower to upper coastal plain
Landform: Flood plain
Geomorphic Component: Swamp
Parent Material: Alluvium
Elevation: 6 to 137 meters (about 20 to 450 feet)
Annual Temperature: 14 to 21 degrees C (57 to 70 degrees F)
Annual Precipitation: 1040 to 1400 mm ( about 41 to 55 inches)
Frost Free Period: 202 to 253 days

GEOGRAPHICALLY ASSOCIATED SOILS:
Bibb soils--poorly drained, on similar landforms
Johns soils--somewhat poorly drained, on adjacent stream terraces
Johnston soils--coarse loamy particle-size control section, on similar landforms
Kalmia soils--well drained, on adjacent stream terraces
Kinston soils--poorly drained, on similar landforms
Lumbee soils--poorly drained, on adjacent stream terraces
Mouzon soils--poorly drained, on adjacent stream terraces
Osier soils--poorly drained, on adjacent stream terraces
Rutlege soils--have a sandy particle-size control section, on similar landforms
Torhunta soils--have an umbric horizon, on similar landforms
Yemassee soils--somewhat poorly drained, on adjacent stream terraces

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage Class (Agricultural): Very poorly drained
Internal Free Water Occurrence: Very shallow, persistent
Flooding Frequency and Duration: Frequent
Ponding Frequency and Duration: None
Index Surface Runoff: Negligible
Saturated Hydraulic Conductivity: Moderately low (0.1 to 1.4 micrometers per second) in the upper part and moderately low to very high (0.1 to 705 micrometers per second) in the lower part)
Permeability: Very slow

SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Raleigh, North Carolina

USE AND VEGETATION:
Major Uses: Woodland
Dominant Vegetation: Where wooded--water tupelo, swamp tupelo, sweetgum, yellow poplar, green ash, water oak, and baldcypress. Also, loblolly pine grows in areas that have been drained. Understory plants include inkberry (bitter gallberry), American holly, greenbrier, switchcane, blueberry, honeysuckle, and poison ivy. Where cultivated--corn, soybeans, and pasture.

DISTRIBUTION AND EXTENT:
Distribution: South Carolina
Extent: Small

SERIES PROPOSED: Sumter County, South Carolina; 2009. Established with this 2009 correlation.

REMARKS:
Diagnostic horizons and features recognized in this pedon are:
Umbric epipedon--the zone from the surface to a depth of 34 inches (A horizon)
Aquic conditions--the zone from 0 inches to a depth of 80 inches is periodically saturated (endosaturation)

ADDITIONAL DATA:
Laboratory Data: Characterization/Reference data are available from NRCS-Soil Survey Laboratory, Lincoln, NE.: User Pedon ID (08SC085008) or Lab Pedon Number (08N0257) is representative of the Scapo Series.

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National Cooperative Soil Survey
U.S.A.