Calhoun and Roane Counties, West Virginia
The most common soil here is Gilpin, on about 37% of the land: a channery silt loam, smooth, like flour. Peabody and Upshur come next.
About 99% of the land drains well.
USDA rates 99% of the land very limited for a standard septic drain field, and 99% very limited for homes with basements. That means extra cost or special design, not that it can't be done.
Worth knowing: 6% of the land floods occasionally or more, and bedrock lies within 40 inches under 82% 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 Calhoun and Roane Counties, West Virginia, 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 Ultisols — strongly weathered soils with clay-enriched subsoils, common in warm humid climates. 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 Calhoun and Roane Counties, West Virginia. 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 |
|---|---|---|---|---|---|
| Gilpin-Peabody complex, 35 to 70 percent slopes, severely eroded | 272K | Well drained | C | Very limited | Very limited |
| Upshur-Gilpin silt loams, 15 to 25 percent slopes, severely eroded | 71K | Well drained | D | Very limited | Very limited |
| Vandalia silt loam, 15 to 25 percent slopes | 41K | Well drained | C | Very limited | Very limited |
| Upshur-Gilpin silt loams, 25 to 35 percent slopes, severely eroded | 28K | Well drained | D | Very limited | Very limited |
| Gilpin-Pineville complex, 35 to 70 percent slopes, very stony | 21K | Well drained | C | Very limited | Very limited |
| Sensabaugh silt loam, 0 to 3 percent slopes, occasionally flooded | 18K | Well drained | A | Very limited | Very limited |
| Moshannon silt loam, 0 to 3 percent slopes, occasionally flooded | 10K | Well drained | B | Very limited | Very limited |
| Vandalia silt loam, 15 to 25 percent slopes, extremely bouldery | 6K | Well drained | C | Very limited | Very limited |
| Rock outcrop-Peabody-Gilpin complex, 35 to 70 percent slopes, severely eroded | 5K | Well drained | C | Very limited | Very limited |
| Upshur-Gilpin silt loams, 8 to 15 percent slopes, severely eroded | 4K | Well drained | D | Very limited | Very limited |
| Pineville loam, 25 to 35 percent slopes, very stony | 3K | Well drained | B | Very limited | Very limited |
| Hackers silt loam, 0 to 3 percent slopes, rarely flooded | 3K | Well drained | B | Very limited | Somewhat limited |
| Udorthents, smoothed | 2K | Not rated | Not rated | ||
| Monongahela silt loam, 3 to 8 percent slopes | 1K | Moderately well drained | D | Very limited | Very limited |
| Tilsit silt loam, 3 to 8 percent slopes | 1K | Moderately well drained | D | Very limited | Very limited |
| Water | 1K | Not rated | Not rated | ||
| Senecaville and Melvin silt loams, occasionally flooded | 541 | Moderately well drained | B/D | Very limited | Very limited |
| Senecaville silt loam, 0 to 3 percent slopes, rarely flooded | 227 | 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.
What This Means
Building & Foundations
About 99% of soils are rated "very limited" for dwellings with basements. Specific challenges include steep slopes, flood-prone areas. A geotechnical assessment is recommended before building.
Septic Systems
About 99% 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.