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

Very limited

Soil across 95.6% of Saginaw County, MI rates "Very limited" in USDA's septic-absorption-field interpretation. This is the reading that pushes a project toward an engineered system rather than a conventional one, and it covers 95.6% of Saginaw County's land. Saginaw County, MI is 800.807 square miles with a population of 187,714.

What Saginaw County's reading doesn't cover

This is a countywide, area-weighted figure across every soil survey map unit in Saginaw County, MI - never a reading for one specific parcel. A local percolation test, typically $750-$1,850 (around $1,300 typical), is the only way to know what one lot in Saginaw County will actually do.

What a system would cost here

With 95.6% of Saginaw 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.

Where this sits nationally

Nationally, Saginaw County, MI is the 576-most-constrained of 3,058 rated counties for septic soil. Within Michigan alone it ranks 28 of 83.

Before you act on this

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