Lauderdale County, TN: the USDA septic-suitability picture

Very limited

USDA puts Lauderdale County, TN at "Very limited" for septic absorption fields, the dominant reading across 71.9% of the county's soil. This is the reading that pushes a project toward an engineered system rather than a conventional one, and it covers 71.9% of Lauderdale County's land. For scale: 471.895 square miles and 24,630 people call Lauderdale County home.

Before you rely on this for one lot

Nothing about Lauderdale 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 Lauderdale County, TN

Lauderdale 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.

Lauderdale County's rank among Tennessee counties

Among the 3,058 rated counties on this site, Lauderdale County, TN ranks 2,406 most-constrained nationally, and 72 of 95 within Tennessee.

Before you act on this

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