What Ray County, MO's soil rates for a septic system

Very limited

Soil across 94.1% of Ray County, MO rates "Very limited" in USDA's septic-absorption-field interpretation. Expect the ground itself to work against a plain gravity system; USDA's strictest bucket alone covers 94.1% of the county. Ray County, MO is 568.979 square miles with a population of 23,199.

What Ray County's reading doesn't cover

Ray County's rating is an average across the whole county, not a promise about any one lot inside it. A local percolation test, typically $750-$1,850 (around $1,300 typical), is the only way to know what one lot in Ray County will actually do.

What a system would cost here

With 94.1% of Ray 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 Ray County, MO compares

Nationally, Ray County, MO is the 774-most-constrained of 3,058 rated counties for septic soil. Within Missouri alone it ranks 55 of 114.

Before you act on this

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