Fayette County, WV Septic Rating
Fayette County's SSURGO septic rating
Very limited
Fayette County, WV: USDA's soil survey calls 95.6% 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 662 square miles, home to 38,600 people.
What this number does and doesn't tell you
Nothing about Fayette County, WV'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.
Fayette County: conventional vs. engineered cost
95.6% of Fayette 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.
How Fayette County, WV compares
Among the 3,058 rated counties on this site, Fayette County, WV ranks 579 most-constrained nationally, and 25 of 55 within West Virginia.
Related guides
How this rating is built, and its real limits · Conventional vs. engineered septic systems