Burnett County, WI's soil, for a septic absorption field
Very limited
Soil across 91.5% of Burnett County, WI rates "Very limited" in USDA's septic-absorption-field interpretation. That reading means a conventional system is a poor bet here - 91.5% of Burnett County lands in the strictest "very limited" bucket USDA uses. Burnett County, WI is 821.596 square miles with a population of 17,187.
What Burnett County's reading doesn't cover
This is a countywide, area-weighted figure across every soil survey map unit in Burnett County, WI - never a reading for one specific parcel. A local percolation test, typically $750-$1,850 (around $1,300 typical), is the only way to know what one lot in Burnett County will actually do.
What a system would cost here
With 91.5% of Burnett County rating "Very limited", a standard gravity system is not a safe assumption here. 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.
Burnett County's rank among Wisconsin counties
Nationally, Burnett County, WI is the 1,104-most-constrained of 3,058 rated counties for septic soil. Within Wisconsin alone it ranks 32 of 72.
Before you act on this
How this rating is built, and its real limits · Conventional vs. engineered septic systems