Andrew County, Missouri

Survey Area MO003• Missouri

The dominant drainage class is Somewhat poorly drained and the dominant hydrologic group is C (slow infiltration, moderate 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 Andrew 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
Lamoni silty clay loam, 5 to 9 percent slopes, moderately eroded	29K	Somewhat poorly drained	D	Very limited	Very limited
Dockery-Quiver silt loams, 0 to 2 percent slopes, occasionally flooded	15K	Somewhat poorly drained	B/D	Very limited	Very limited
Knox silt loam, 5 to 9 percent slopes	15K	Well drained	B	Somewhat limited	Somewhat limited
Brussels very flaggy silty clay loam, 14 to 50 percent slopes	14K	Well drained	C	Very limited	Very limited
Higginsville silty clay loam, 5 to 9 percent slopes, eroded	13K	Somewhat poorly drained	C/D	Very limited	Very limited
Marshall silty clay loam, 5 to 9 percent slopes, eroded	13K	Well drained	C	Somewhat limited	Very limited
Knox silty clay loam, 9 to 14 percent slopes, eroded	13K	Well drained	C	Somewhat limited	Somewhat limited
Colo silty clay loam, deep loess, 0 to 2 percent slopes, occasionally flooded	13K	Poorly drained	C/D	Very limited	Very limited
Marshall silty clay loam, 2 to 5 percent slopes	13K	Well drained	C	Somewhat limited	Very limited
Arispe silty clay loam, 5 to 9 percent slopes, eroded	12K	Somewhat poorly drained	C/D	Very limited	Very limited
Armstrong clay loam, 9 to 14 percent slopes, moderately eroded	12K	Somewhat poorly drained	D	Very limited	Very limited
Lamoni clay loam, 9 to 14 percent slopes, moderately eroded	11K	Somewhat poorly drained	D	Very limited	Very limited
Gara loam, 9 to 14 percent slopes	11K	Well drained	C	Somewhat limited	Very limited
Colo silt loam, 1 to 4 percent slopes, occasionally flooded	10K	Poorly drained	C/D	Very limited	Very limited
Rosendale silty clay loam, 9 to 30 percent slopes	7K	Moderately well drained	C	Very limited	Very limited
Higginsville silty clay loam, 9 to 14 percent slopes, eroded	6K	Somewhat poorly drained	C/D	Very limited	Very limited
Sharpsburg silty clay loam, 2 to 5 percent slopes	6K	Moderately well drained	C	Somewhat limited	Very limited
Knox silty clay loam, 14 to 20 percent slopes, eroded	5K	Well drained	C	Very limited	Very limited
Grundy silt loam, 2 to 5 percent slopes	5K	Somewhat poorly drained	C/D	Very limited	Very limited
Shelby loam, 9 to 14 percent slopes	5K	Well drained	C	Somewhat 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.

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 67% of soils are rated "very limited" for dwellings with basements. Specific challenges include steep slopes, poor drainage in some areas, flood-prone areas. A geotechnical assessment is recommended before building.

Septic Systems

About 87% 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.