Soil survey area

Choctaw County, Oklahoma

Survey Area OK023• Oklahoma
The short version

The most common soil here is Bosville, on about 13% of the land: a fine sandy loam, gritty and crumbly. Bernow and Hollywood come next.

About 42% of the land drains well, and 20% stays wet for long stretches; groundwater comes within two feet of the surface under 29% of it.

USDA rates 66% of the land very limited for a standard septic drain field, and 65% very limited for homes with basements. That means extra cost or special design, not that it can't be done.

Worth knowing: 16% of the land floods occasionally or more, and bedrock lies within 40 inches under 10% of it.

Soils change over short distances, so look up an address below for the soil at that exact spot and the reasons behind each rating.

The ground underfoot

The soils you're most likely standing on

The biggest named soils in Choctaw County, Oklahoma, each drawn five feet deep from its official USDA description, in its recorded colors.

Bosville
13% of the area
Fine sandy loam topsoil · moderately well drained
Gritty and crumbly. Drains fast and warms early in spring.
Alfisols
Bernow
11% of the area
Fine sandy loam topsoil · well drained
Gritty and crumbly. Drains fast and warms early in spring.
Alfisols
Hollywood
7% of the area
Clay loam topsoil · moderately well drained
Firm and a little sticky. Holds water and nutrients well.
Vertisols
Muskogee
6% of the area
Silt loam topsoil · moderately well drained
Smooth, like flour. Fertile and holds water well.
Alfisols
Tenaha
6% of the area
Fine sand topsoil · well drained
Loose sand that holds almost no water.
Ultisols
Swink
5% of the area
Very stony clay topsoil · well drained
Sticky when wet and rock-hard when dry. Drains slowly.
Mollisols

Dots mark gravel; white flecks mark lime. Shares are by acres across the survey area, and each mapped patch usually mixes several of these soils.

The biggest mapped areas

The dominant drainage class is Moderately well drained and the dominant hydrologic group is D (very slow infiltration, high runoff). The most common soil order is Alfisols — moderately leached forest soils with a clay-enriched subsoil. This report summarizes the major soil map units across the survey area to help you understand what to expect when buying, building, or gardening in Choctaw County, Oklahoma. Search your address to find the exact soil composition, drainage, and series details at your specific location.

Soil Map UnitAcresDrainageHydro GroupDwellingsSeptic
Muskogee silt loam, 1 to 3 percent slopes 38K Moderately well drainedCVery limitedVery limited
Bosville fine sandy loam, 8 to 15 percent slopes 31K Moderately well drainedDVery limitedVery limited
Tenaha-Kirvin association, 12 to 20 percent slopes 30K Well drainedBSomewhat limitedSomewhat limited
Bernow-Romia complex, 8 to 12 percent slopes 28K Well drainedBSomewhat limitedSomewhat limited
Swink-Hollywood complex, 5 to 20 percent slopes 27K Well drainedDVery limitedVery limited
Bosville fine sandy loam, 1 to 3 percent slopes 22K Moderately well drainedDVery limitedVery limited
Water 21K DNot ratedNot rated
Hollywood-Swink complex, 3 to 8 percent slopes 21K Moderately well drainedDVery limitedVery limited
Wrightsville-Elysian complex, 0 to 1 percent slopes 19K Poorly drainedDVery limitedVery limited
Boggy fine sandy loam, 0 to 1 percent slopes, frequently flooded 18K Somewhat poorly drainedB/DVery limitedVery limited
Bernow fine sandy loam, 1 to 3 percent slopes 17K Well drainedBNot limitedSomewhat limited
Bosville fine sandy loam, 5 to 8 percent slopes 14K Moderately well drainedDVery limitedVery limited
Guyton silt loam, 0 to 1 percent slopes, occasionally flooded 12K Poorly drainedC/DVery limitedVery limited
Trinity clay, 0 to 1 percent slopes, frequently flooded 12K Somewhat poorly drainedDVery limitedVery limited
Hopco silty clay loam, 0 to 1 percent slopes, occasionally flooded 12K Somewhat poorly drainedCVery limitedVery limited
Hollywood silty clay, 1 to 3 percent slopes 11K Moderately well drainedDVery limitedVery limited
Panola silt loam, 0 to 1 percent slopes 11K Somewhat poorly drainedDVery limitedVery limited
Bernow-Romia complex, 3 to 8 percent slopes, eroded 10K Well drainedBSomewhat limitedSomewhat limited
Kaufman clay, 0 to 1 percent slopes, frequently flooded 8K Moderately well drainedDVery limitedVery limited
Bernow, Bosville, and Romia soils, 3 to 8 percent slopes, gullied 8K Well drainedBNot limitedSomewhat limited

Soil Orders in This Area

The USDA classifies every soil into one of 12 soil orders. Here are the dominant orders found in this survey area.

Alfisols
Moderately weathered forest soils with clay-enriched subsoil. Productive for agriculture, generally good for building and septic.
Vertisols
High-clay soils that shrink and swell dramatically. Fertile but challenging for foundations and septic systems.
Ultisols
Strongly weathered clay soils of the Southeast. Acidic and naturally low in nutrients. Clay subsoil can slow drainage.
Mollisols
Fertile grassland soils with thick, dark topsoil. Among the best for agriculture, building, and gardening.

What This Means

Building & Foundations

About 65% of soils are rated "very limited" for dwellings with basements. Specific challenges include shallow bedrock, steep slopes, poor drainage in some areas, flood-prone areas. A geotechnical assessment is recommended before building.

Septic Systems

About 66% of soils are rated "very limited" for septic absorption fields. Despite good drainage overall, limitations may stem from shallow bedrock, steep slopes, or seasonal conditions. Engineered or alternative systems are frequently required. Always get a professional perc test before purchasing land that needs septic.

Gardening & Agriculture

Drainage is generally favorable for gardening. Adding compost and mulch will improve fertility and water retention. Test your soil's pH before planting — most vegetables prefer 6.0-7.0.

Look Up a Specific Address

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