What Pierce County, WI's soil rates for a septic system

Very limited

In Pierce County, WI, 85.4% of the surveyed land carries a "Very limited" rating for a standard septic drain field. A standard gravity system routinely fails on ground like this; the same share of the county falls in USDA's worst absorption-field bucket outright. Pierce County covers 574.018 square miles and counts 43,380 residents.

This is a county figure, not a parcel figure

USDA's survey covers the whole of Pierce County, WI at once, not any single address. A site-specific perc test, usually $750-$1,850, is what a health department will actually require before permitting a lot in Pierce County.

System cost, conventional vs. engineered

Given Pierce County's rating, plan for the engineered-system range rather than the conventional one. The engineered-system range, $10,000-$40,000 (mound or aerobic treatment), is the more realistic number to plan around, against $3,000-$8,000 for a conventional system on the rare lot that passes.

Pierce County's rank among Wisconsin counties

Nationally, Pierce County, WI is the 1,659-most-constrained of 3,058 rated counties for septic soil. Within Wisconsin alone it ranks 54 of 72.

Before you act on this

How this rating is built, and its real limits · Conventional vs. engineered septic systems