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

Very limited

In Creek County, OK, 82.9% of the surveyed land carries a "Very limited" rating for a standard septic drain field. This is the reading that pushes a project toward an engineered system rather than a conventional one, and it covers 82.9% of Creek County's land. Creek County covers 949.895 square miles and counts 73,971 residents.

This is a county figure, not a parcel figure

Nothing about Creek County, OK's SSURGO figure applies to a specific address - it's a county-wide average. A site-specific perc test, usually $750-$1,850, is what a health department will actually require before permitting a lot in Creek County.

System cost, conventional vs. engineered

Given Creek 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.

Where this sits nationally

Nationally, Creek County, OK is the 1,864-most-constrained of 3,058 rated counties for septic soil. Within Oklahoma alone it ranks 44 of 77.

Further reading

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