Grant County, WV: the USDA septic-suitability picture

Very limited

USDA puts Grant County, WV at "Very limited" for septic absorption fields, the dominant reading across 94.9% of the county's soil. That reading means a conventional system is a poor bet here - 94.9% of Grant County lands in the strictest "very limited" bucket USDA uses. The county spans 477.373 square miles, home to 10,971 people.

What this number does and doesn't tell you

This is a countywide, area-weighted figure across every soil survey map unit in Grant County, WV - never a reading for one specific parcel. Budget $750-$1,850 for a real perc test on any specific parcel - that's the only figure a permit application accepts.

Grant County: conventional vs. engineered cost

94.9% of Grant 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, Grant County, WV ranks 680 most-constrained nationally, and 30 of 55 within West Virginia.

Before you act on this

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