What Webster County, MS's soil rates for a septic system

Very limited

In Webster County, MS, 99.3% of the surveyed land carries a "Very limited" rating for a standard septic drain field. Expect the ground itself to work against a plain gravity system; USDA's strictest bucket alone covers 99.3% of the county. Webster County covers 421.158 square miles and counts 10,039 residents.

This is a county figure, not a parcel figure

This is a countywide, area-weighted figure across every soil survey map unit in Webster County, MS - never a reading for one specific parcel. A site-specific perc test, usually $750-$1,850, is what a health department will actually require before permitting a lot in Webster County.

System cost, conventional vs. engineered

Given Webster County's rating, plan for the engineered-system range rather than the conventional one. The engineered-system range, $10,000-$40,000 (mound or aerobic treatment), is the more realistic number to plan around, against $3,000-$8,000 for a conventional system on the rare lot that passes.

Webster County's rank among Mississippi counties

Nationally, Webster County, MS is the 54-most-constrained of 3,058 rated counties for septic soil. Within Mississippi alone it ranks 3 of 82.

Related guides

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