LOCATION SUMTERVILLE FLEstablished Series
TAXONOMIC CLASS: Fine, mixed, active, hyperthermic Aquic Paleudalfs
TYPICAL PEDON: Sumterville fine sand, bouldery subsurface--cultivated. (Colors are for moist soil.)
Ap--0 to 9 inches; dark gray (10YR 4/1) fine sand; weak fine granular structure; many uncoated sand grains; many fine roots; very strongly acid; clear wavy boundary. (5 to 9 inches thick)
E1--9 to 24 inches; light yellowish brown (10YR 6/4) fine sand; single grained; loose; few fine roots; few fine faint yellowish brown (10YR 5/6) masses of iron accumulation; strongly acid; clear wavy boundary.
E2--24 to 29 inches; very pale brown (10YR 7/4) fine sand; single grained; loose; few fine roots; common fine faint brownish yellow (10YR 6/6) masses of iron accumulation and common fine distinct light gray (10YR 7/2) areas of iron depletions; strongly acid; abrupt wavy boundary. (Combined thickness of the E horizon ranges from 15 to 31 inches.)
Btg1--29 to 47 inches; light gray (10YR 7/1) sandy clay; weak fine subangular blocky structure; friable; few faint clay films on faces of peds; common medium distinct strong brown (7.5YR 5/6) and yellowish red (5YR 4/6) masses of iron accumulation; strongly acid; gradual wavy boundary.
Btg2--47 to 63 inches; light gray (5Y 7/1) sandy clay; moderate medium subangular blocky structure; firm; slightly sticky; few faint clay films on faces of peds; few medium distinct brownish yellow (10YR 6/8) and yellowish brown (10YR 5/6) masses of iron accumulation; strongly acid; gradual wavy boundary.
Btg3--63 to 80 inches; light gray (5Y 7/1) sandy clay; moderate medium subangular blocky structure; firm; slightly sticky; few faint clay films on faces of peds; few medium faint olive yellow (2.5Y 6/6) masses of iron accumulation; moderately acid.
TYPE LOCATION: Sumter County, Florida; approximately 2.5 miles east of Highway 301l and about 200 feet north of Highway 470. SW 1/4, SW 1/4, Sec. 9, T. 20 S., R. 23 E.
RANGE IN CHARACTERISTICS: Solum thickness is more than 60 inches. Reaction ranges from very strongly acid to slightly acid in the A and E horizons and from strongly acid to neutral in the Bt horizon. Boulders occur randomly at or near the surface and within the upper pedon at intervals of about 30 to 80 feet and cover 0.01 to 1.0 percent of the soil surface.
The A or Ap horizon has hue of 10YR, value of 3 to 5, and chroma of 1 or 2. Texture is sand or fine sand.
The E horizon has hue of 10YR, value of 5 to 7, and chroma of 3 or 4. Texture is sand or fine sand.
The upper part of the Bt horizon has hue of 7.5YR or 10YR, value of 5 to 7, and chroma of 4 or less. Redoximorphic features in shades of gray, yellow, brown, and red range from none to common. The lower part of the Bt horizon has hue of 10YR to 5Y, value of 6 or 7, and chroma of 2 or less. Iron accumulations in shades of yellow, brown, and red range from few to common. Texture is sandy clay or sandy clay loam. When it is sandy clay loam, thickness is less than 5 inches.
Where present, the C horizon has colors that are similar to the lower Btg horizon. Texture is fine sandy loam, sandy loam, or sandy clay loam.
COMPETING SERIES: The Micanopy series is the only known series in the same family. Micanopy soils are on similar positions but have an argillic horizon within 20 inches of the surface.
GEOGRAPHIC SETTING: Sumterville soils are on uplands in the Coastal Plain of central Florida. Slopes range from 0 to 5 percent. They formed in sandy and clayey marine deposits. The climate is humid subtropical. The average annual temperature ranges from 72 to 74 degrees F.; and the average annual rainfall ranges from 51 to 61 inches.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Adamsville, Millhopper, and Paisley series. Adamsville soils are on similar to lower positions, do not have argillic horizons, and are sandy throughout. The moderately well drained Millhopper soils are on higher positions, have sandy layers 40 to 80 inches in thickness, and are Ultisols. The poorly drained Paisley soils are on lower positions, have an argillic horizon within a depth of 20 inches, and have clayey, smectitic subsoils.
DRAINAGE AND PERMEABILITY: Somewhat poorly drained; slow permeability.
USE AND VEGETATION: Most areas of Sumterville soils are in pasture. The natural vegetation consists of live oak and water oak.
DISTRIBUTION AND EXTENT: Central Florida. The series is of small known extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Auburn, Alabama.
SERIES ESTABLISHED: Sumter County, Florida; 1985.
REMARKS: Diagnostic horizons and features recognized in this pedon:
Ochric epipedon - the zone from 0 to 29 inches (Ap, E1, and E2 horizons).
Argillic horizon the zone from 29 to 80 inches (Btg1, Btg2, and Btg3 horizons).
Sumterville soils have a high water table within a depth of 18 to 36 inches below the surface for 2 to 6 months and are at a depth of less than 60 inches for more than 6 months in most years.
These soils were formerly included in the Nobleton series.
ADDITIONAL DATA: Characterization and engineering test data is available for this pedon. NRCS Sample Number S82FL-119-004 (1-6), NSSL Lincoln, NE; University of Florida soil characterization laboratory numbers 5339 to 5344; DOT number 4.