What Lyon County, KS's soil rates for a septic system

Very limited

In Lyon County, KS, 99.2% of the surveyed land carries a "Very limited" rating for a standard septic drain field. This is the reading that pushes a project toward an engineered system rather than a conventional one, and it covers 99.2% of Lyon County's land. Lyon County covers 847.477 square miles and counts 32,520 residents.

This is a county figure, not a parcel figure

USDA's survey covers the whole of Lyon County, KS at once, not any single address. A site-specific perc test, usually $750-$1,850, is what a health department will actually require before permitting a lot in Lyon County.

System cost, conventional vs. engineered

Given Lyon 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 Lyon County, KS compares

Nationally, Lyon County, KS is the 64-most-constrained of 3,058 rated counties for septic soil. Within Kansas alone it ranks 3 of 105.

Before you act on this

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