Oswego County's SSURGO septic rating

Very limited

Oswego County, NY's SSURGO dominant class comes back "Very limited", covering 90.8% of the county. Practically, that rules out a simple gravity system for most of the county - 90.8% of it sits in USDA's most-constrained bucket. The county spans 951.62 square miles, home to 118,305 people.

What this number does and doesn't tell you

Nothing about Oswego County, NY'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.

Oswego County: conventional vs. engineered cost

90.8% of Oswego 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, Oswego County, NY ranks 1,181 most-constrained nationally, and 30 of 61 within New York.

Before you act on this

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