Dane County, Wisconsin

Survey Area WI025 Wisconsin

The dominant drainage class is Well drained and the dominant hydrologic group is B (moderate infiltration). 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 Dane County, Wisconsin.

Soil Map UnitAcresDrainageHydro GroupDwellingsSeptic
Plano silt loam, till substratum, 2 to 6 percent slopes 38K Well drainedBSomewhat limitedVery limited
Dodge silt loam, 2 to 6 percent slopes 35K Well drainedCNot limitedVery limited
St. Charles silt loam, 2 to 6 percent slopes 35K Well drainedBSomewhat limitedVery limited
McHenry silt loam, 6 to 12 percent slopes, eroded 29K Well drainedBSomewhat limitedVery limited
Houghton muck, 0 to 2 percent slopes 26K Very poorly drainedA/DVery limitedVery limited
Water 26K Not ratedNot rated
Ringwood silt loam, 2 to 6 percent slopes 22K Well drainedBNot limitedVery limited
Sable silty clay loam, 0 to 2 percent slopes 20K Poorly drainedB/DVery limitedVery limited
Batavia silt loam, gravelly substratum, 2 to 6 percent slopes 19K Well drainedBSomewhat limitedVery limited
Troxel silt loam, 0 to 3 percent slopes 17K Moderately well drainedBSomewhat limitedSomewhat limited
Wacousta silty clay loam, 0 to 2 percent slopes 17K Very poorly drainedB/DVery limitedVery limited
Kegonsa silt loam, 2 to 6 percent slopes 15K Well drainedBNot limitedVery limited
Dodge silt loam, 6 to 12 percent slopes, eroded 14K Well drainedCSomewhat limitedVery limited
Edmund silt loam, 6 to 12 percent slopes, eroded 14K Well drainedDVery limitedVery limited
Kidder loam, 12 to 20 percent slopes, eroded 13K Well drainedBVery limitedVery limited
Virgil silt loam, gravelly substratum, 0 to 3 percent slopes 12K Somewhat poorly drainedB/DVery limitedVery limited
Dresden silt loam, 6 to 12 percent slopes, eroded 12K Well drainedBSomewhat limitedVery limited
Virgil silt loam, 1 to 4 percent slopes 12K Somewhat poorly drainedB/DVery limitedVery limited
Newglarus-Dunbarton silt loams, 12 to 20 percent slopes, moderately eroded 11K Well drainedCVery limitedVery limited
Radford silt loam, 0 to 3 percent slopes 10K Somewhat poorly drainedB/DVery limitedVery limited

What This Means

Building & Foundations

About 34% of soils have significant building limitations, while the rest are generally suitable. Check specific sites carefully — conditions vary across the area.

Septic Systems

About 89% 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.

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