McPherson County, NE's soil, for a septic absorption field

Very limited

Soil across 98.8% of McPherson County, NE 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 98.8% of McPherson County's land. McPherson County, NE is 859.259 square miles with a population of 376.

What McPherson County's reading doesn't cover

Nothing about McPherson County, NE's SSURGO figure applies to a specific address - it's a county-wide average. A local percolation test, typically $750-$1,850 (around $1,300 typical), is the only way to know what one lot in McPherson County will actually do.

What a system would cost here

With 98.8% of McPherson 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.

McPherson County's rank among Nebraska counties

Nationally, McPherson County, NE is the 127-most-constrained of 3,058 rated counties for septic soil. Within Nebraska alone it ranks 8 of 93.

Before you act on this

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