Irion County's SSURGO septic rating

Very limited

Irion County, TX's SSURGO dominant class comes back "Very limited", covering 97% of the county. That reading means a conventional system is a poor bet here - 97% of Irion County lands in the strictest "very limited" bucket USDA uses. The county spans 1,051.544 square miles, home to 1,526 people.

What this number does and doesn't tell you

This is a countywide, area-weighted figure across every soil survey map unit in Irion County, TX - never a reading for one specific parcel. Budget $750-$1,850 for a real perc test on any specific parcel - that's the only figure a permit application accepts.

Irion County: conventional vs. engineered cost

97% of Irion County carrying a "Very limited" reading changes the realistic budget here. Conventional systems run $3,000-$8,000 where they pass; where they don't, engineered alternatives (mound or aerobic treatment, whichever the health department requires) run $10,000-$40,000 - budget toward the higher figure until a perc test says otherwise.

How Irion County, TX compares

Among the 3,058 rated counties on this site, Irion County, TX ranks 389 most-constrained nationally, and 24 of 253 within Texas.

Further reading

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