What Knott County, KY's soil rates for a septic system

Very limited

In Knott County, KY, 97.2% of the surveyed land carries a "Very limited" rating for a standard septic drain field. That reading means a conventional system is a poor bet here - 97.2% of Knott County lands in the strictest "very limited" bucket USDA uses. Knott County covers 351.524 square miles and counts 13,438 residents.

This is a county figure, not a parcel figure

This is a countywide, area-weighted figure across every soil survey map unit in Knott County, KY - never a reading for one specific parcel. A site-specific perc test, usually $750-$1,850, is what a health department will actually require before permitting a lot in Knott County.

System cost, conventional vs. engineered

Given Knott 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 Knott County, KY compares

Nationally, Knott County, KY is the 361-most-constrained of 3,058 rated counties for septic soil. Within Kentucky alone it ranks 14 of 119.

Before you act on this

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