Carroll County, Missouri
The most common soil here is Lagonda, on about 17% of the land: a silt loam, smooth, like flour. Greenton and Armster come next.
About 11% of the land drains well, and 60% stays wet for long stretches; groundwater comes within two feet of the surface under 60% of it.
USDA rates 96% of the land very limited for a standard septic drain field, and 94% very limited for homes with basements. That means extra cost or special design, not that it can't be done.
Worth knowing: 28% of the land floods occasionally or more, and bedrock lies within 40 inches under 6% of it.
Soils change over short distances, so look up an address below for the soil at that exact spot and the reasons behind each rating.
The soils you're most likely standing on
The biggest named soils in Carroll County, Missouri, each drawn five feet deep from its official USDA description, in its recorded colors.
Dots mark gravel; white flecks mark lime. Shares are by acres across the survey area, and each mapped patch usually mixes several of these soils.
The biggest mapped areas
The dominant drainage class is Somewhat poorly drained and the dominant hydrologic group is C/D (varies with drainage). 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 Carroll 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 |
|---|---|---|---|---|---|
| Lagonda silty clay loam, 5 to 9 percent slopes, eroded | 64K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Greenton silty clay loam, 5 to 9 percent slopes, eroded | 36K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Armster loam, 5 to 9 percent slopes | 28K | Moderately well drained | D | Very limited | Very limited |
| Bremer silty clay loam, 0 to 2 percent slopes, rarely flooded | 27K | Poorly drained | C/D | Very limited | Very limited |
| Lagonda silty clay loam, 2 to 5 percent slopes, eroded | 25K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Grundy silt loam, 2 to 5 percent slopes | 24K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Nodaway silt loam, 0 to 2 percent slopes, frequently flooded | 24K | Moderately well drained | B | Very limited | Very limited |
| Cotter silt loam, 0 to 2 percent slopes, rarely flooded | 17K | Well drained | C | Very limited | Very limited |
| Gosport silty clay loam, 9 to 14 percent slopes | 14K | Moderately well drained | D | Very limited | Very limited |
| Leta silty clay, 0 to 2 percent slopes, occasionally flooded | 14K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Colo silty clay loam, heavy till, 0 to 2 percent slopes, occasionally flooded | 13K | Poorly drained | C/D | Very limited | Very limited |
| Sharpsburg silt loam, 2 to 5 percent slopes | 12K | Moderately well drained | C | Very limited | Very limited |
| Haynie very fine sandy loam, 0 to 2 percent slopes, occasionally flooded | 11K | Moderately well drained | B | Very limited | Very limited |
| Waldron silty clay loam, 0 to 2 percent slopes, occasionally flooded | 11K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Gosport silty clay loam, 14 to 30 percent slopes | 10K | Moderately well drained | D | Very limited | Very limited |
| Booker silty clay, frequently ponded, 0 to 2 percent slopes, occasionally flooded | 10K | Very poorly drained | D | Very limited | Very limited |
| Zook silty clay loam, heavy till, 0 to 2 percent slopes, occasionally flooded | 8K | Poorly drained | D | Very limited | Very limited |
| Higginsville silt loam, 5 to 9 percent slopes, eroded | 8K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Wakenda silt loam, 2 to 5 percent slopes | 7K | Well drained | B | Somewhat limited | Very limited |
| Knox silt loam, 5 to 9 percent slopes, eroded | 7K | Well drained | B | Somewhat limited | Somewhat 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.
What This Means
Building & Foundations
About 94% 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 96% 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.