LOCATION POMPANO FL

Established Series
Rev. SHM-CAP-AMS
10/2018

POMPANO SERIES

The Pompano series consists of very deep, very poorly and poorly drained soils that formed in thick beds of sandy marine sediments. Pompano soils are on flatwoods, in low broad flats, and to a lesser extent, depressions, drainageways, and flood plains, on marine terraces. Slopes range from 0 to 2 percent. Mean annual precipitation is about 1270 millimeters (50 inches) and the mean annual temperature is about 23 degrees C (73 degrees F).

TAXONOMIC CLASS: Siliceous, hyperthermic Typic Psammaquents

TYPICAL PEDON: Pompano fine sand is in a linear to concave area of forest at elevation of about 44 meters (146 feet) above mean sea level. (Colors are for moist soil unless otherwise stated).

A1--0 to 15 centimeters (0 to 6 inches); dark gray (10YR 4/1) fine sand; weak fine granular structure; very friable; many fine roots; slightly acid; abrupt smooth boundary.

A2--15 to 38 centimeters (6 to 15 inches); grayish brown (10YR 5/2) fine sand; single grain; loose; many fine roots; few fine distinct strong brown (7.5YR 5/6) masses of oxidized iron; moderately acid; gradual wavy boundary. [Combined thickness of the A horizons range from 5 to 53 centimeters (2 to 21 inches) thick]

C--38 to 89 centimeters (15 to 35 inches); very pale brown (10YR 7/3) fine sand, single grain; loose; few fine roots; few fine distinct yellow (10YR 7/6) masses of oxidized iron; moderately acid; gradual wavy boundary.

Cg--89 to 203 centimeters (35 to 80 inches); light gray (10YR 7/1) fine sand; single grain; loose; moderately acid.

TYPE LOCATION: Polk County, Florida; approximately 2.65 kilometers (1.65 miles) north of State Road 60 and 4.54 kilometers (2.82 miles) west of South Rifle Range Road; about 559 meters south and 356 meters east (1835 feet south and 1167 feet east) of the northwest corner of sec. 25, T. 29 S., R. 25 E.; Latitude and Longitude; 27 degrees, 56 minutes 0.58 seconds N.; Longitude 81 degrees 46 minutes 20.13 seconds W.; Datum WSG84.

RANGE IN CHARACTERISTICS:
Soil moisture control section: 30 to 90 centimeters (12 to 35 inches)
Solum thickness: 203 centimeters or more
Aquic conditions: 0 to 30 centimeters (0 to 12 inches)
Depth to redoximorphic features: 0 to 30 centimeters (0 to 12 inches)
Depth to endosaturation: 0 to 30 centimeters (0 to 12 inches)
Ochric epipedon thickness: 0 to 38 centimeters (0 to 15 inches)
Reaction: very strongly acid to slightly alkaline pH 4.5 to 7.8 throughout

Particle-size control section (weighted averages):
Clay content: 0 to 10 percent
Fine sand content: 30 to 75 percent
Silt content: 0 to 10 percent
Clay plus silt content: 1 to 10 percent
Rock fragments: 0 to 5 percent

A or Ap horizon:
Hue: 10YR, 2.5Y, or Neutral
Value: 2 to 5
Where the value is 3.5 or less, the horizon is less than 15 centimeters (6 inches) thick.
Chroma: 1 or 2
Texture: fine sand or sand
Clay content: 0 to 7 percent
Rock fragments: 0
EC (mmhos/cm): 0 to 2

C or Cg horizon:
Hue: 10YR, 2.5Y, 5Y, 5GY, or Neutral
Value: 5 to 8
Chroma: 1 to 3
Texture: sand, or fine sand
Clay content: 2 to 10 percent
Rock and/or shell fragments: 0 to 14 percent below 102 centimeters (40 inches)
EC (mmhos/cm): 0 to 2
Redoximorphic features: depletions or concentrations, 0 to 20 percent, and fine or medium in size
The higher chromas are due to either uncoated sand grains or thin coatings of organic matter on sand grains.

COMPETING SERIES:
These are the Dianola, Kesson, Mustang, and Novillo series.
Dianola soils have EC values greater than 26, SAR values greater than 13, ESP values greater than 15, and have more than 10 percent silt plus clay in the 25 to 100 centimeter (10 to 40 inch) control section.
Kesson soils are subject to tidal flooding and have salinity exceeding 16 mmhos/centimeters
Mustang and Novillo soils have an ustic moisture regime and have a PE index of 31-44.

GEOGRAPHIC SETTING:
Parent material: Sandy marine sediments
Landscape: Lower Coastal Plain
Landform(s): on flatwoods, in low broad flats, depressions, drainageways, and flood plains on marine terraces.
Hillslope position: None
Geomorphic component: talf and dip
Slopes: 0 to 2 percent
Elevation: 1.5 to 61 meters (5 to 200 feet)
Mean annual temperature: 21 to 25 degrees C (70 to 77 degrees F)
Mean annual precipitation: 1219 to 1321 millimeters (48 to 52 inches)
Frost-free period: 350 to 365 days

GEOGRAPHICALLY ASSOCIATED SOILS:
Adamsville soils have seasonal high water tables at depths of 46 to 107 centimeters (18 to 42 inches) and are on slightly higher ridges and knolls.
Anclote soils have a mollic epipedons and are on slightly lower landform positions.
Basinger soils have a Bh horizon (spodic intergrade) within depths of 25 to 100 centimeters (10 to 40 inches) and are on similar landform positions.
Chobee and Manatee soils have mollic epipedons, argillic horizons and are on similar landform positions.
EauGallie, Immokalee, Myakka, and Wabasso soils have spodic horizons within depths of 25 to 100 centimeters (10 to 40 inches) and are on similar landform positions.
Felda and Riviera soils have argillic horizons and are on similar landform positions.
Hallandale soils have limestone bedrock within 25 to 51 centimeters (10 to 20 inches) and are on similar landform positions.
Margate soils have limestone bedrock within 51 to 102 centimeters (20 to 40 inches) and are on similar landform positions.
Placid soils have an umbric epipedon and have chroma of 3 or less throughout the A horizons and are on similar landform positions.
Valkaria soils have Bw horizons that have chroma of 4 or more and are on similar landform positions.

DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage class: very poorly to poorly drained
Saturated hydraulic conductivity (KSAT): high to very high
Permeability: rapid or very rapid
Surface Runoff: negligible to very low
Depth to seasonal high water table: 0 to 30 centimeters (0 to 12 inches) of the surface for about 2 to 6 months during most years, and 25 to 76 centimeters (10 to 30 inches) most of the rest of the year.
Depressional phases are ponded 0 to 61 centimeters (0 to 24 inches) about 3 months each year

USE AND VEGETATION:
Under natural conditions Pompano soils are used for water quality, rangeland, and wildlife habitat. Where drained, it is used for truck crops, citrus fruits, and improved pasture.
Native vegetation of flatwoods consists of slash pine, south Florida slash pine, saw palmetto, gallberry, waxmyrtle, chalky bluestem, and pineland threeawn. Forested depressions are dominated by bald and pond cypress, black gum, and red maple. Herbaceous depressions are dominated by sedges, rushes, and sawgrass.

DISTRIBUTION AND EXTENT:
Major Land Resource Area (MLRA): South Central Florida Ridge (MLRA 154) and Southern Florida Flatwoods (MLRA 155)
Extent: Large

MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Auburn, Alabama

SERIES ESTABLISHED:
Everglades Project Area, Florida; 1945.

REMARKS:
Particle size control section: 25 to 100 centimeters (10 to 40 inches)

Diagnostic horizons and features recognized in this pedon:

Ochric epipedon - 0 to 15 inches (0 to 38 centimeters) (A1, A2 horizons).

Redoximorphic features - 0 to 203 centimeters (0 to 80 inches) (A1, A2, C, and Cg horizons)

Aquic conditions - 0 to 203 centimeters (0 to 80 inches)

Endosaturation - 0 to 203 centimeters (0 to 80 inches)

Soil classified according to the 12th Edition of the Keys to Soil Taxonomy.

Ponded and depressional phases need to be investigated to determine if a new series is necessary.

ADDITIONAL DATA:
Laboratory data is available on the National Soil Survey website at: http://ncsslabdatamart.sc.egov.usda.gov/querypage.aspx

OSD User Site ID: 1985FL105017
OSD User Pedon ID: 1985FL105017

National Cooperative Soil Survey
U.S.A.