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

Very limited

In Logan County, NE, 95.6% of the surveyed land carries a "Very limited" rating for a standard septic drain field. That reading means a conventional system is a poor bet here - 95.6% of Logan County lands in the strictest "very limited" bucket USDA uses. Logan County, NE is 570.698 square miles with a population of 694.

What Logan County's reading doesn't cover

USDA's survey covers the whole of Logan County, NE 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 Logan County will actually do.

What a system would cost here

With 95.6% of Logan 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.

Logan County's rank among Nebraska counties

Nationally, Logan County, NE is the 590-most-constrained of 3,058 rated counties for septic soil. Within Nebraska alone it ranks 19 of 93.

Further reading

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