Brule County's SSURGO septic rating

Very limited

Brule County, SD: USDA's soil survey calls 73.4% of the county "Very limited" for a septic leach 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. The county spans 817.222 square miles, home to 5,261 people.

What this number does and doesn't tell you

Brule County's rating is an average across the whole county, not a promise about any one lot inside it. Budget $750-$1,850 for a real perc test on any specific parcel - that's the only figure a permit application accepts.

Brule County: conventional vs. engineered cost

73.4% of Brule County carrying a "Very limited" reading changes the realistic budget here. Conventional systems run $3,000-$8,000 where they pass; where they don't, engineered alternatives (mound or aerobic treatment, whichever the health department requires) run $10,000-$40,000 - budget toward the higher figure until a perc test says otherwise.

How Brule County, SD compares

Among the 3,058 rated counties on this site, Brule County, SD ranks 2,355 most-constrained nationally, and 55 of 66 within South Dakota.

Before you act on this

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