Soil survey area

Muskogee County, Oklahoma

Survey Area OK101• Oklahoma
The short version

The most common soil here is Dennis, on about 17% of the land: a silt loam, smooth, like flour. Bates and Taloka come next.

About 43% of the land drains well, and 43% stays wet for long stretches; groundwater comes within two feet of the surface under 49% of it.

USDA rates 92% of the land very limited for a standard septic drain field, and 79% very limited for homes with basements. That means extra cost or special design, not that it can't be done.

Worth knowing: 9% of the land floods occasionally or more, and bedrock lies within 40 inches under 30% 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 Muskogee County, Oklahoma, each drawn five feet deep from its official USDA description, in its recorded colors.

Dennis
17% of the area
Silt loam topsoil · somewhat poorly drained
Smooth, like flour. Fertile and holds water well.
Mollisols
Bates
10% of the area
Loam topsoil · well drained
A balanced mix that crumbles in your hand. The gardener's ideal.
Mollisols
Taloka
8% of the area
Silt loam topsoil · somewhat poorly drained
Smooth, like flour. Fertile and holds water well.
Alfisols
Verdigris
7% of the area
Silt loam topsoil · well drained
Smooth, like flour. Fertile and holds water well.
Mollisols
Parsons
6% of the area
Silt loam topsoil · somewhat poorly drained
Smooth, like flour. Fertile and holds water well.
Alfisols
Stigler
6% of the area
Silt loam topsoil · somewhat poorly drained
Smooth, like flour. Fertile and holds water well.
Alfisols

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 Somewhat poorly 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 Muskogee County, Oklahoma. Search your address to find the exact soil composition, drainage, and series details at your specific location.

Soil Map UnitAcresDrainageHydro GroupDwellingsSeptic
Dennis silt loam, 1 to 3 percent slopes 56K Somewhat poorly drainedC/DVery limitedVery limited
Enders-Linker-Hector association, 5 to 30 percent slopes 41K Well drainedCVery limitedVery limited
Dennis-Verdigris complex, 0 to 12 percent slopes 30K Somewhat poorly drainedC/DVery limitedVery limited
Taloka silt loam, 1 to 3 percent slopes 27K Somewhat poorly drainedDVery limitedVery limited
Stigler silt loam, 1 to 3 percent slopes 23K Moderately well drainedDVery limitedVery limited
Bates loam, 1 to 3 percent slopes 20K Well drainedCSomewhat limitedVery limited
Water 20K Not ratedNot rated
Taloka silt loam, 0 to 1 percent slopes 20K Somewhat poorly drainedDVery limitedVery limited
Verdigris silt loam, 0 to 1 percent slopes, frequently flooded 19K Well drainedBVery limitedVery limited
Parsons silt loam, 0 to 1 percent slopes 17K Somewhat poorly drainedDVery limitedVery limited
Oktaha-Hector complex, 1 to 5 percent slopes 16K Well drainedCVery limitedVery limited
Bates loam, 3 to 5 percent slopes 15K Well drainedCSomewhat limitedVery limited
Bates-Coweta complex, 3 to 5 percent slopes 15K Well drainedCSomewhat limitedVery limited
Parsons silt loam, 1 to 3 percent slopes 12K Somewhat poorly drainedDVery limitedVery limited
Dennis silt loam, 3 to 5 percent slopes, eroded 12K Somewhat poorly drainedC/DVery limitedVery limited
Dennis silt loam, 3 to 5 percent slopes 12K Somewhat poorly drainedC/DVery limitedVery limited
Coweta fine sandy loam, 5 to 12 percent slopes 11K Well drainedDVery limitedVery limited
Verdigris silt loam, 0 to 1 percent slopes, occasionally flooded 11K Well drainedBVery limitedVery limited
Eram-Coweta-Rock outcrop association, 8 to 12 percent slopes 10K Moderately well drainedDVery limitedVery limited
Stigler silt loam, 0 to 1 percent slopes 9K Moderately well drainedDVery limitedVery 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.
Mollisols
Fertile grassland soils with thick, dark topsoil. Among the best for agriculture, building, and gardening.
Ultisols
Strongly weathered clay soils of the Southeast. Acidic and naturally low in nutrients. Clay subsoil can slow drainage.
Entisols
Young soils with little development — found on floodplains, dunes, and steep slopes. Properties vary widely by setting.
Vertisols
High-clay soils that shrink and swell dramatically. Fertile but challenging for foundations and septic systems.

What This Means

Building & Foundations

About 79% 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 92% of soils are rated "very limited" for septic absorption fields. Poorly drained soils can't absorb septic effluent effectively. Engineered or alternative systems are frequently required. Always get a professional perc test before purchasing land that needs septic.

Gardening & Agriculture

Many soils hold water for extended periods. Raised beds are highly recommended to improve drainage for vegetables. Well-adapted native plants and water-loving species will do best in natural conditions.

Look Up a Specific Address

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