What Beadle County, SD's soil rates for a septic system

Very limited

Soil across 83.9% of Beadle County, SD rates "Very limited" in USDA's septic-absorption-field interpretation. This is the reading that pushes a project toward an engineered system rather than a conventional one, and it covers 83.9% of Beadle County's land. Beadle County covers 1,258.698 square miles and counts 19,459 residents.

This is a county figure, not a parcel figure

Nothing about Beadle County, SD's SSURGO figure applies to a specific address - it's a county-wide average. A site-specific perc test, usually $750-$1,850, is what a health department will actually require before permitting a lot in Beadle County.

System cost, conventional vs. engineered

Given Beadle 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.

How Beadle County, SD compares

Nationally, Beadle County, SD is the 1,791-most-constrained of 3,058 rated counties for septic soil. Within South Dakota alone it ranks 43 of 66.

Further reading

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