Limestone County, AL Septic Rating

Limestone County's SSURGO septic rating

Very limited

Limestone County, AL: USDA's soil survey calls 57% of the county "Very limited" for a septic leach field. Expect the ground itself to work against a plain gravity system; that share is already USDA's strictest bucket, not a lesser constraint layered on top. The county spans 563 square miles, home to 118,942 people.

What this number does and doesn't tell you

Nothing about Limestone County, AL's SSURGO figure applies to a specific address - it's a county-wide average. Budget $750-$1,850 for a real perc test on any specific parcel - that's the only figure a permit application accepts.

Limestone County: conventional vs. engineered cost

57% of Limestone County carrying a "Very limited" reading changes the realistic budget here. 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.

Where this sits nationally

Among the 3,058 rated counties on this site, Limestone County, AL ranks 2,780 most-constrained nationally, and 59 of 67 within Alabama.

Related guides

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