Warren County, Missouri

Survey Area MO219• Missouri

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 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 Warren 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
Keswick silt loam, 9 to 14 percent slopes, eroded	29K	Somewhat poorly drained	C/D	Very limited	Very limited
Goss very gravelly silt loam, 14 to 45 percent slopes	26K	Well drained	C	Very limited	Very limited
Keswick silt loam, 5 to 9 percent slopes, eroded	21K	Somewhat poorly drained	D	Very limited	Very limited
Hatton silt loam, 3 to 9 percent slopes	20K	Moderately well drained	D	Very limited	Very limited
Gasconade-Rock outcrop complex, 14 to 50 percent slopes, rubbly	19K	Somewhat excessively drained	D	Very limited	Very limited
Mexico silt loam, 1 to 4 percent slopes, eroded	17K	Poorly drained	D	Very limited	Very limited
Armster silt loam, 2 to 7 percent slopes	14K	Moderately well drained	D	Very limited	Very limited
Lindley loam, 14 to 40 percent slopes	12K	Well drained	C	Very limited	Very limited
Holstein-Rock outcrop complex, 14 to 35 percent slopes	12K	Well drained	C	Very limited	Very limited
Chilhowie, Gasconade, and Crider soils, 14 to 35 percent slopes	6K	Well drained	D	Very limited	Very limited
Winfield silt loam, 9 to 14 percent slopes, eroded	6K	Moderately well drained	C	Somewhat limited	Very limited
Peers silty clay loam, 0 to 2 percent slopes, occasionally flooded	6K	Somewhat poorly drained	C/D	Very limited	Very limited
Water	6K	Subaqueous		Not rated	Not rated
Peers-Lowmo-SansDessein complex, 0 to 2 percent slopes, occasionally flooded	5K	Somewhat poorly drained	C/D	Very limited	Very limited
Cedargap silt loam, 0 to 2 percent slopes, frequently flooded, cool	5K	Well drained	B	Very limited	Very limited
Mexico silt loam, 0 to 2 percent slopes	4K	Poorly drained	D	Very limited	Very limited
Menfro silt loam, 9 to 14 percent slopes, eroded	4K	Well drained	B	Somewhat limited	Somewhat limited
Lowmo silt loam, 0 to 2 percent slopes, occasionally flooded	3K	Well drained	B	Very limited	Very limited
Menfro silt loam, 5 to 9 percent slopes, eroded	3K	Well drained	C	Somewhat limited	Very limited
Winfield silt loam, 14 to 20 percent slopes, eroded	3K	Moderately well drained	C	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.

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.

Inceptisols

Young but developing soils found in mountains and river terraces. Variable properties — check drainage and bedrock depth.

Entisols

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

What This Means

Building & Foundations

About 91% 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 95% 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

Well-drained soils on sloped terrain — good for most plants but watch for erosion. Terracing, contour planting, and mulching help retain moisture and topsoil. Drip irrigation is more effective than sprinklers on slopes.