Clark County, Kansas
The most common soil here is Harney, on about 13% of the land: a silt loam, smooth, like flour. Penden and Carey come next.
About 97% of the land drains well, and 3% stays wet for long stretches.
USDA rates 72% of the land very limited for a standard septic drain field, and 35% very limited for homes with basements. That means extra cost or special design, not that it can't be done.
Worth knowing: 10% of the land floods occasionally or more, and bedrock lies within 40 inches under 26% 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 Clark County, Kansas, 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 Well 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 Clark County, Kansas. 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 |
|---|---|---|---|---|---|
| Campus-Canlon complex, 3 to 30 percent slopes | 52K | Well drained | C | Very limited | Very limited |
| Harney silt loam, 0 to 1 percent slopes | 50K | Well drained | C | Somewhat limited | Very limited |
| Penden clay loam, 7 to 15 percent slopes | 46K | Well drained | B | Somewhat limited | Somewhat limited |
| Quinlan-Woodward loams, 6 to 15 percent slopes | 42K | Well drained | D | Very limited | Very limited |
| Harney silt loam, 1 to 3 percent slopes | 34K | Well drained | C | Somewhat limited | Very limited |
| Wellsford silty clay, 6 to 25 percent slopes | 29K | Well drained | D | Very limited | Very limited |
| Eda-Tivoli sands, 1 to 12 percent slopes | 26K | Somewhat excessively drained | A | Not limited | Very limited |
| Kingsdown fine sandy loam, 0 to 2 percent slopes | 23K | Well drained | A | Not limited | Very limited |
| Penden clay loam, 1 to 3 percent slopes | 20K | Well drained | B | Not limited | Somewhat limited |
| Woodward-Quinlan complex, 3 to 5 percent slopes | 20K | Well drained | C | Somewhat limited | Very limited |
| Penden clay loam, 3 to 7 percent slopes | 18K | Well drained | B | Not limited | Somewhat limited |
| Missler silty clay loam, 0 to 1 percent slopes | 17K | Well drained | C | Somewhat limited | Very limited |
| Carey silt loam, 1 to 3 percent slopes | 16K | Well drained | B | Not limited | Somewhat limited |
| Carey silt loam, 0 to 1 percent slopes | 16K | Well drained | B | Not limited | Somewhat limited |
| Lincoln loamy fine sand, occasionally flooded | 15K | Somewhat excessively drained | A | Very limited | Very limited |
| Albion-Shellabarger sandy loams, 3 to 15 percent slopes | 15K | Well drained | A | Somewhat limited | Very limited |
| Southside-Fortyone complex, 1 to 5 percent slopes | 14K | Somewhat excessively drained | A | Not limited | Very limited |
| Tivoli fine sand, 5 to 30 percent slopes | 14K | Excessively drained | A | Very limited | Very limited |
| Likes loamy fine sand, 1 to 8 percent slopes | 12K | Somewhat excessively drained | A | Not limited | Very limited |
| Uly silt loam, 3 to 6 percent slopes | 11K | Well drained | B | Not 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 35% of soils have significant building limitations, while the rest are generally suitable. Check specific sites carefully — conditions vary across the area.
Septic Systems
About 72% 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.