Septic soil in Curry County, NM, by the numbers

Somewhat limited

Soil across 57.2% of Curry County, NM rates "Somewhat limited" in USDA's septic-absorption-field interpretation. That's a middle reading: not the outright failure "very limited" soil produces, but not a clean pass either. Design changes often bridge the gap. Curry County covers 1,405.524 square miles and counts 47,156 residents.

This is a county figure, not a parcel figure

This is a countywide, area-weighted figure across every soil survey map unit in Curry County, NM - never a reading for one specific parcel. A site-specific perc test, usually $750-$1,850, is what a health department will actually require before permitting a lot in Curry County.

System cost, conventional vs. engineered

Given Curry 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.

Where this sits nationally

Nationally, Curry County, NM is the 2,963-most-constrained of 3,058 rated counties for septic soil. Within New Mexico alone it ranks 28 of 29.

Related guides

How this rating is built, and its real limits · How a percolation test actually works