Brown County, Wisconsin
The dominant drainage class is Well drained and the dominant hydrologic group is D (very slow infiltration, high 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 Brown County, Wisconsin.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Kewaunee silt loam, 2 to 6 percent slopes, eroded | 62K | Well drained | D | Somewhat limited | Very limited |
| Water | 50K | Not rated | Not rated | ||
| Manawa silty clay loam, 0 to 3 percent slopes | 27K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Oshkosh silt loam, 2 to 6 percent slopes | 18K | Well drained | C | Very limited | Very limited |
| Waymor silt loam, 2 to 6 percent slopes | 15K | Well drained | C | Somewhat limited | Very limited |
| Kewaunee silt loam, 6 to 12 percent slopes, eroded | 10K | Well drained | D | Somewhat limited | Very limited |
| Oshkosh silt loam, 0 to 2 percent slopes | 8K | Well drained | C | Very limited | Very limited |
| Tedrow loamy fine sand, 0 to 3 percent slopes | 8K | Somewhat poorly drained | A/D | Very limited | Very limited |
| Kewaunee-Manawa complex, 2 to 6 percent slopes | 8K | Well drained | D | Somewhat limited | Very limited |
| Poygan silty clay loam, 0 to 2 percent slopes, occasionally ponded, drained | 8K | Poorly drained | C/D | Very limited | Very limited |
| Shawano loamy fine sand, 2 to 6 percent slopes | 7K | Excessively drained | A | Somewhat limited | Very limited |
| Onaway-Ossineke fine sandy loams, moraine, 1 to 6 percent slopes | 6K | Well drained | C | Not limited | Somewhat limited |
| Oshkosh silty clay loam, 0 to 2 percent slopes | 5K | Well drained | C | Very limited | Very limited |
| Carbondale muck, 0 to 2 percent slopes | 5K | Very poorly drained | A/D | Very limited | Very limited |
| Solona loam, 1 to 3 percent slopes | 4K | Somewhat poorly drained | B/D | Very limited | Very limited |
| Bellevue silt loam, 0 to 2 percent slopes, frequently flooded | 4K | Moderately well drained | C | Very limited | Very limited |
| Fill land | 4K | Not rated | Not rated | ||
| Kibbie silt loam, 1 to 3 percent slopes | 4K | Somewhat poorly drained | B/D | Very limited | Very limited |
| Alluvial land | 4K | Not rated | Not rated | ||
| Waymor silt loam, 6 to 12 percent slopes, eroded | 3K | Well drained | C | Somewhat limited | Very limited |
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 75% 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.