Maury County, TN's soil, for a septic absorption field

Very limited

70.8% of Maury County, TN's surveyed soil comes back "Very limited" in USDA's own SSURGO data, the county's dominant condition for a septic absorption field. This is the reading that pushes a project toward an engineered system rather than a conventional one, and it covers 70.8% of Maury County's land. Maury County covers 613.083 square miles and counts 113,411 residents.

This is a county figure, not a parcel figure

Two lots a mile apart in Maury County can carry different soil, even though they share one countywide rating. A site-specific perc test, usually $750-$1,850, is what a health department will actually require before permitting a lot in Maury County.

System cost, conventional vs. engineered

Given Maury 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.

Maury County's rank among Tennessee counties

Nationally, Maury County, TN is the 2,438-most-constrained of 3,058 rated counties for septic soil. Within Tennessee alone it ranks 75 of 95.

Before you act on this

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