What Mineral County, CO's soil rates for a septic system

Very limited

90% of Mineral County, CO's surveyed soil comes back "Very limited" in USDA's own SSURGO data, the county's dominant condition for a septic absorption field. A standard gravity system routinely fails on ground like this; the same share of the county falls in USDA's worst absorption-field bucket outright. Mineral County, CO is 875.76 square miles with a population of 933.

What Mineral County's reading doesn't cover

This is a countywide, area-weighted figure across every soil survey map unit in Mineral County, CO - never a reading for one specific parcel. A local percolation test, typically $750-$1,850 (around $1,300 typical), is the only way to know what one lot in Mineral County will actually do.

What a system would cost here

With 90% of Mineral 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 Mineral County, CO compares

Nationally, Mineral County, CO is the 1,270-most-constrained of 3,058 rated counties for septic soil. Within Colorado alone it ranks 17 of 63.

Before you act on this

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