Cass County, Missouri

Survey Area MO037• Missouri

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 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 Cass County, Missouri. 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
Kenoma silt loam, 4 to 7 percent slopes	44K	Moderately well drained	D	Very limited	Very limited
Kenoma silt loam, 1 to 3 percent slopes	35K	Moderately well drained	D	Very limited	Very limited
Arisburg silt loam, 1 to 5 percent slopes	31K	Somewhat poorly drained	C	Very limited	Very limited
Greenton silty clay loam, 5 to 9 percent slopes	31K	Somewhat poorly drained	C/D	Very limited	Very limited
Haig silt loam, 0 to 2 percent slopes	29K	Poorly drained	D	Very limited	Very limited
Sampsel silty clay loam, 2 to 5 percent slopes	21K	Poorly drained	C/D	Very limited	Very limited
Snead-Rock outcrop complex, warm, 5 to 14 percent slopes	20K	Moderately well drained	D	Very limited	Very limited
Oska silty clay loam, 5 to 9 percent slopes	19K	Well drained	D	Very limited	Very limited
Verdigris silt loam, 0 to 1 percent slopes, occasionally flooded	18K	Well drained	B	Very limited	Very limited
Deepwater silt loam, 5 to 9 percent slopes	16K	Moderately well drained	C	Somewhat limited	Very limited
Weller silt loam, 5 to 9 percent slopes, eroded	15K	Moderately well drained	D	Very limited	Very limited
Snead silty clay loam, 5 to 14 percent slopes	15K	Moderately well drained	D	Very limited	Very limited
Summit silty clay loam, 5 to 9 percent slopes	15K	Moderately well drained	C	Very limited	Very limited
Deepwater silt loam, 2 to 5 percent slopes	13K	Moderately well drained	C	Somewhat limited	Very limited
Blackoar silt loam, 0 to 2 percent slopes, occasionally flooded	12K	Poorly drained	B/D	Very limited	Very limited
Polo silt loam, 2 to 5 percent slopes	11K	Well drained	C	Very limited	Very limited
Verdigris silt loam, 1 to 3 percent slopes, frequently flooded	11K	Well drained	B	Very limited	Very limited
Zook silty clay loam, 0 to 2 percent slopes, occasionally flooded	10K	Poorly drained	D	Very limited	Very limited
Summit silty clay loam, 2 to 5 percent slopes	8K	Moderately well drained	C	Very limited	Very limited
Sampsel silty clay loam, 5 to 9 percent slopes	8K	Somewhat poorly drained	C/D	Very 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.

Ultisols

Strongly weathered clay soils of the Southeast. Acidic and naturally low in nutrients. Clay subsoil can slow drainage.

What This Means

Building & Foundations

About 92% of soils are rated "very limited" for dwellings with basements. Specific challenges include poor drainage in some areas, flood-prone areas. A geotechnical assessment is recommended before building.

Septic Systems

About 100% 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.