Andrew County, Missouri
The dominant drainage class is Somewhat poorly drained and the dominant hydrologic group is C (slow infiltration, moderate runoff). 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.
| 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 |
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.