What Ashtabula County, OH's soil rates for a septic system

Very limited

Soil across 95.9% of Ashtabula County, OH rates "Very limited" in USDA's septic-absorption-field interpretation. Practically, that rules out a simple gravity system for most of the county - 95.9% of it sits in USDA's most-constrained bucket. Ashtabula County covers 702.417 square miles and counts 96,906 residents.

This is a county figure, not a parcel figure

Nothing about Ashtabula County, OH'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 Ashtabula County.

System cost, conventional vs. engineered

Given Ashtabula 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.

How Ashtabula County, OH compares

Nationally, Ashtabula County, OH is the 543-most-constrained of 3,058 rated counties for septic soil. Within Ohio alone it ranks 52 of 87.

Before you act on this

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