Macomb County's SSURGO septic rating

Very limited

Macomb County, MI: USDA's soil survey calls 93.9% of the county "Very limited" for a septic leach field. That reading means a conventional system is a poor bet here - 93.9% of Macomb County lands in the strictest "very limited" bucket USDA uses. The county spans 479.355 square miles, home to 886,175 people.

What this number does and doesn't tell you

USDA's survey covers the whole of Macomb County, MI at once, not any single address. Budget $750-$1,850 for a real perc test on any specific parcel - that's the only figure a permit application accepts.

Macomb County: conventional vs. engineered cost

93.9% of Macomb 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.

Macomb County's rank among Michigan counties

Among the 3,058 rated counties on this site, Macomb County, MI ranks 794 most-constrained nationally, and 39 of 83 within Michigan.

Before you act on this

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