Walworth County, Wisconsin
The dominant drainage class is Well drained and the dominant hydrologic group is B (moderate infiltration). 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 Walworth County, Wisconsin. 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 |
|---|---|---|---|---|---|
| Miami silt loam, 2 to 6 percent slopes | 24K | Well drained | B | Somewhat limited | Somewhat limited |
| Plano silt loam, gravelly substratum, 0 to 2 percent slopes | 23K | Well drained | B | Somewhat limited | Very limited |
| Pella silt loam, 0 to 2 percent slopes | 22K | Poorly drained | B/D | Very limited | Very limited |
| McHenry silt loam, 2 to 6 percent slopes | 21K | Well drained | B | Not limited | Very limited |
| Houghton muck, 0 to 2 percent slopes | 17K | Very poorly drained | A/D | Very limited | Very limited |
| Fox silt loam, 2 to 6 percent slopes | 17K | Well drained | B | Not limited | Very limited |
| Water | 15K | Not rated | Not rated | ||
| Plano silt loam, till substratum, 2 to 6 percent slopes | 12K | Well drained | B | Somewhat limited | Very limited |
| Casco-Rodman complex, 20 to 30 percent slopes, eroded | 10K | Somewhat excessively drained | B | Very limited | Very limited |
| St. Charles silt loam, gravelly subtratum, 0 to 2 percent slopes | 9K | Well drained | B | Somewhat limited | Very limited |
| Plano silt loam, till substratum, 0 to 2 percent slopes | 7K | Well drained | B | Somewhat limited | Very limited |
| Miami loam, sandy loam substratum, 6 to 12 percent slopes, eroded | 7K | Well drained | B | Somewhat limited | Very limited |
| Fox silt loam, 0 to 2 percent slopes | 7K | Well drained | B | Not limited | Very limited |
| Casco loam, 6 to 12 percent slopes, eroded | 6K | Somewhat excessively drained | B | Somewhat limited | Very limited |
| Drummer silt loam, gravelly substratum | 6K | Poorly drained | B/D | Very limited | Very limited |
| Sebewa silt loam, 0 to 2 percent slopes | 6K | Poorly drained | B/D | Very limited | Very limited |
| Miami loam, sandy loam substratum, 12 to 20 percent slopes, eroded | 5K | Well drained | B | Very limited | Very limited |
| St. Charles silt loam, gravelly subtratum, 2 to 6 percent slopes | 5K | Well drained | B | Somewhat limited | Very limited |
| Warsaw silt loam, 2 to 6 percent slopes | 5K | Well drained | B | Somewhat limited | Very limited |
| Kendall silt loam, 1 to 3 percent slopes | 5K | Somewhat poorly drained | B/D | 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 31% of soils have significant building limitations, while the rest are generally suitable. Check specific sites carefully — conditions vary across the area.
Septic Systems
About 83% 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
Drainage is generally favorable for gardening. Adding compost and mulch will improve fertility and water retention. Test your soil's pH before planting — most vegetables prefer 6.0-7.0.