Dickson County, TN: the USDA septic-suitability picture

Very limited

Dickson County, TN: USDA's soil survey calls 68.6% of the county "Very limited" for a septic leach field. Expect the ground itself to work against a plain gravity system; USDA's strictest bucket alone covers 68.6% of the county. For scale: 489.899 square miles and 57,641 people call Dickson County home.

Before you rely on this for one lot

Nothing about Dickson County, TN's SSURGO figure applies to a specific address - it's a county-wide average. The real answer for one lot is still a site-specific perc test, running about $750-$1,850 (typically near $1,300).

Budgeting for a system in Dickson County, TN

Dickson County's soil reading pushes the likely outcome toward an engineered system rather than a conventional one. Conventional systems run $3,000-$8,000 where they pass; where they don't, engineered alternatives (mound or aerobic treatment, whichever the health department requires) run $10,000-$40,000 - budget toward the higher figure until a perc test says otherwise.

How Dickson County, TN compares

Among the 3,058 rated counties on this site, Dickson County, TN ranks 2,511 most-constrained nationally, and 81 of 95 within Tennessee.

Before you act on this

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