Septic soil in Russell County, KS, by the numbers

Very limited

77.9% of Russell County, KS's surveyed soil comes back "Very limited" in USDA's own SSURGO data, the county's dominant condition for a septic absorption field. Practically, that rules out a simple gravity system for most of the county - 77.9% of it sits in USDA's most-constrained bucket. Russell County, KS is 886.26 square miles with a population of 6,620.

What Russell County's reading doesn't cover

USDA's survey covers the whole of Russell County, KS at once, not any single address. A local percolation test, typically $750-$1,850 (around $1,300 typical), is the only way to know what one lot in Russell County will actually do.

What a system would cost here

With 77.9% of Russell 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.

How Russell County, KS compares

Nationally, Russell County, KS is the 2,146-most-constrained of 3,058 rated counties for septic soil. Within Kansas alone it ranks 63 of 105.

Before you act on this

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