What Essex County, VT's soil rates for a septic system

Very limited

98.4% of Essex County, VT's surveyed soil comes back "Very limited" in USDA's own SSURGO data, the county's dominant condition for a septic absorption field. Expect the ground itself to work against a plain gravity system; USDA's strictest bucket alone covers 98.4% of the county. Essex County covers 662.371 square miles and counts 6,037 residents.

This is a county figure, not a parcel figure

Nothing about Essex County, VT's SSURGO figure applies to a specific address - it's a county-wide average. A site-specific perc test, usually $750-$1,850, is what a health department will actually require before permitting a lot in Essex County.

System cost, conventional vs. engineered

Given Essex 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.

Essex County's rank among Vermont counties

Nationally, Essex County, VT is the 196-most-constrained of 3,058 rated counties for septic soil. Within Vermont alone it ranks 2 of 13.

Before you act on this

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