Fayette County, TN's soil, for a septic absorption field
Very limited
In Fayette County, TN, 82% of the surveyed land carries a "Very limited" rating for a standard septic drain field. Expect the ground itself to work against a plain gravity system; USDA's strictest bucket alone covers 82% of the county. Fayette County, TN is 704.124 square miles with a population of 44,476.
What Fayette County's reading doesn't cover
USDA's survey covers the whole of Fayette County, TN 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 Fayette County will actually do.
What a system would cost here
With 82% of Fayette 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 Fayette County, TN compares
Nationally, Fayette County, TN is the 1,926-most-constrained of 3,058 rated counties for septic soil. Within Tennessee alone it ranks 49 of 95.
Related guides
How this rating is built, and its real limits · Conventional vs. engineered septic systems