Schoolcraft County, MI's soil, for a septic absorption field

Very limited

In Schoolcraft County, MI, 94.5% of the surveyed land carries a "Very limited" rating for a standard septic drain field. This is the reading that pushes a project toward an engineered system rather than a conventional one, and it covers 94.5% of Schoolcraft County's land. Schoolcraft County, MI is 1,171.876 square miles with a population of 8,178.

What Schoolcraft County's reading doesn't cover

USDA's survey covers the whole of Schoolcraft County, MI at once, not any single address. A local percolation test, typically $750-$1,850 (around $1,300 typical), is the only way to know what one lot in Schoolcraft County will actually do.

What a system would cost here

With 94.5% of Schoolcraft County rating "Very limited", a standard gravity system is not a safe assumption here. 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 Schoolcraft County, MI compares

Nationally, Schoolcraft County, MI is the 716-most-constrained of 3,058 rated counties for septic soil. Within Michigan alone it ranks 35 of 83.

Further reading

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