Gaines County's SSURGO septic rating

Somewhat limited

Gaines County, TX's SSURGO dominant class comes back "Somewhat limited", covering 80.4% of the county. A conventional system can still work here with design changes - a larger field, added fill, or a shallower layout - but it isn't guaranteed. For scale: 1,502.363 square miles and 22,892 people call Gaines County home.

Before you rely on this for one lot

This is a countywide, area-weighted figure across every soil survey map unit in Gaines County, TX - never a reading for one specific parcel. The real answer for one lot is still a site-specific perc test, running about $750-$1,850 (typically near $1,300).

Budgeting for a system in Gaines County, TX

Gaines County's soil reading pushes the likely outcome toward an engineered system rather than a conventional one. 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.

Where this sits nationally

Among the 3,058 rated counties on this site, Gaines County, TX ranks 3,051 most-constrained nationally, and 249 of 253 within Texas.

Further reading

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