Garfield County, OK's soil, for a septic absorption field

Very limited

80.6% of Garfield County, OK's surveyed soil comes back "Very limited" in USDA's own SSURGO data, the county's dominant condition for a septic absorption field. This is the reading that pushes a project toward an engineered system rather than a conventional one, and it covers 80.6% of Garfield County's land. Garfield County covers 1,058.507 square miles and counts 62,007 residents.

This is a county figure, not a parcel figure

USDA's survey covers the whole of Garfield County, OK at once, not any single address. A site-specific perc test, usually $750-$1,850, is what a health department will actually require before permitting a lot in Garfield County.

System cost, conventional vs. engineered

Given Garfield 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.

Garfield County's rank among Oklahoma counties

Nationally, Garfield County, OK is the 2,010-most-constrained of 3,058 rated counties for septic soil. Within Oklahoma alone it ranks 51 of 77.

Related guides

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