Teller County, CO's soil, for a septic absorption field
Very limited
Soil across 88.6% of Teller County, CO rates "Very limited" in USDA's septic-absorption-field interpretation. 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. Teller County, CO is 557.141 square miles with a population of 24,862.
What Teller County's reading doesn't cover
Two lots a mile apart in Teller County can carry different soil, even though they share one countywide rating. A local percolation test, typically $750-$1,850 (around $1,300 typical), is the only way to know what one lot in Teller County will actually do.
What a system would cost here
With 88.6% of Teller 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 Teller County, CO compares
Nationally, Teller County, CO is the 1,408-most-constrained of 3,058 rated counties for septic soil. Within Colorado alone it ranks 23 of 63.
Before you act on this
How this rating is built, and its real limits · Conventional vs. engineered septic systems