Finney County, KS: the USDA septic-suitability picture
Very limited
Finney County, KS's SSURGO dominant class comes back "Very limited", covering 75.2% of the county. Expect the ground itself to work against a plain gravity system; USDA's strictest bucket alone covers 75.2% of the county. The county spans 1,301.997 square miles, home to 38,354 people.
What this number does and doesn't tell you
USDA's survey covers the whole of Finney County, KS at once, not any single address. Budget $750-$1,850 for a real perc test on any specific parcel - that's the only figure a permit application accepts.
Finney County: conventional vs. engineered cost
75.2% of Finney 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 Finney County, KS compares
Among the 3,058 rated counties on this site, Finney County, KS ranks 2,270 most-constrained nationally, and 68 of 105 within Kansas.
Before you act on this
How this rating is built, and its real limits · Conventional vs. engineered septic systems