Cleveland County, Oklahoma

Survey Area OK027• Oklahoma

The dominant drainage class is Well drained and the dominant hydrologic group is D (very slow infiltration, high runoff). The most common soil order is Mollisols — grassland soils with a thick, dark, fertile topsoil rich in organic matter. 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 Cleveland County, Oklahoma. Search your address to find the exact soil composition, drainage, and series details at your specific location.

Soil Map Unit	Acres	Drainage	Hydro Group	Dwellings	Septic
Stephenville-Darnell-Newalla complex, 3 to 8 percent slopes	61K	Well drained	D	Very limited	Very limited
Harrah fine sandy loam, 5 to 8 percent slopes	29K	Well drained	B	Not limited	Very limited
Stephenville-Darnell complex, 1 to 5 percent slopes	14K	Well drained	C	Somewhat limited	Very limited
Harrah fine sandy loam, 5 to 8 percent slopes, moderately eroded	13K	Well drained	B	Somewhat limited	Somewhat limited
Water	13K		D	Not rated	Not rated
Stephenville-Darnell-Newalla complex, 3 to 8 percent slopes, eroded	12K	Well drained	C	Somewhat limited	Very limited
Renfrow-Huska complex, 3 to 5 percent slopes, eroded	11K	Well drained	D	Very limited	Very limited
Stephenville-Darnell-Newalla complex, 3 to 8 percent slopes, gullied	10K	Well drained	C	Somewhat limited	Very limited
Harrah-Gullied land complex, 5 to 8 percent slopes	9K	Well drained	B	Somewhat limited	Somewhat limited
Tribbey fine sandy loam, 0 to 1 percent slopes, frequently flooded	8K	Somewhat poorly drained	B	Very limited	Very limited
Pulaski fine sandy loam, 0 to 1 percent slopes, occasionally flooded	7K	Well drained	A	Very limited	Very limited
Kingfisher-Ironmound complex, 1 to 5 percent slopes	7K	Well drained	C	Somewhat limited	Very limited
Grainola-Ashport, frequently flooded, complex, 0 to 12 percent slopes	7K	Well drained	D	Somewhat limited	Very limited
Kirkland silt loam, 0 to 1 percent slopes	6K	Well drained	D	Very limited	Very limited
Grant-Huska complex, 1 to 5 percent slopes	6K	Well drained	B	Somewhat limited	Somewhat limited
Kirkland-Urban land-Pawhuska complex, 0 to 3 percent slopes	6K	Well drained	D	Very limited	Very limited
Ashport silt loam, 0 to 1 percent slopes, occasionally flooded	6K	Well drained	B	Very limited	Very limited
Port silt loam, 0 to 1 percent slopes, frequently flooded	5K	Well drained	B	Very limited	Very limited
Grainola-Ironmound complex, 5 to 12 percent slopes	5K	Well drained	D	Very limited	Very limited
Teller fine sandy loam, 1 to 3 percent slopes	5K	Well drained	B	Not limited	Very 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.

Mollisols

Fertile grassland soils with thick, dark topsoil. Among the best for agriculture, building, and gardening.

Alfisols

Moderately weathered forest soils with clay-enriched subsoil. Productive for agriculture, generally good for building and septic.

Entisols

Young soils with little development — found on floodplains, dunes, and steep slopes. Properties vary widely by setting.

What This Means

Building & Foundations

About 48% of soils have significant building limitations, while the rest are generally suitable. Check specific sites carefully — conditions vary across the area.

Septic Systems

About 83% 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.