Green Lake County's SSURGO septic rating

Very limited

USDA puts Green Lake County, WI at "Very limited" for septic absorption fields, the dominant reading across 82.7% of the county's soil. This is the reading that pushes a project toward an engineered system rather than a conventional one, and it covers 82.7% of Green Lake County's land. The county spans 349.541 square miles, home to 19,370 people.

What this number does and doesn't tell you

Green Lake County's rating is an average across the whole county, not a promise about any one lot inside it. Budget $750-$1,850 for a real perc test on any specific parcel - that's the only figure a permit application accepts.

Green Lake County: conventional vs. engineered cost

82.7% of Green Lake 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.

Green Lake County's rank among Wisconsin counties

Among the 3,058 rated counties on this site, Green Lake County, WI ranks 1,881 most-constrained nationally, and 60 of 72 within Wisconsin.

Before you act on this

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