What Gladwin County, MI's soil rates for a septic system

Very limited

Soil across 97.1% of Gladwin County, MI rates "Very limited" in USDA's septic-absorption-field interpretation. Expect the ground itself to work against a plain gravity system; USDA's strictest bucket alone covers 97.1% of the county. Gladwin County covers 501.787 square miles and counts 25,995 residents.

This is a county figure, not a parcel figure

USDA's survey covers the whole of Gladwin County, MI at once, not any single address. A site-specific perc test, usually $750-$1,850, is what a health department will actually require before permitting a lot in Gladwin County.

System cost, conventional vs. engineered

Given Gladwin 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.

Gladwin County's rank among Michigan counties

Nationally, Gladwin County, MI is the 368-most-constrained of 3,058 rated counties for septic soil. Within Michigan alone it ranks 14 of 83.

Related guides

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