Septic soil in Nuckolls County, NE, by the numbers
Very limited
Soil across 89% of Nuckolls 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 89% of Nuckolls County's land. Nuckolls County covers 575.155 square miles and counts 4,094 residents.
This is a county figure, not a parcel figure
Nothing about Nuckolls County, NE's SSURGO figure applies to a specific address - it's a county-wide average. A site-specific perc test, usually $750-$1,850, is what a health department will actually require before permitting a lot in Nuckolls County.
System cost, conventional vs. engineered
Given Nuckolls County's rating, plan for the engineered-system range rather than the conventional one. 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 Nuckolls County, NE compares
Nationally, Nuckolls County, NE is the 1,375-most-constrained of 3,058 rated counties for septic soil. Within Nebraska alone it ranks 29 of 93.
Further reading
How this rating is built, and its real limits · Conventional vs. engineered septic systems