Pottawatomie County, OK's soil, for a septic absorption field
Very limited
In Pottawatomie County, OK, 82.8% 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 82.8% of Pottawatomie County's land. Pottawatomie County covers 787.816 square miles and counts 74,446 residents.
This is a county figure, not a parcel figure
Pottawatomie County's rating is an average across the whole county, not a promise about any one lot inside it. A site-specific perc test, usually $750-$1,850, is what a health department will actually require before permitting a lot in Pottawatomie County.
System cost, conventional vs. engineered
Given Pottawatomie 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.
Pottawatomie County's rank among Oklahoma counties
Nationally, Pottawatomie County, OK is the 1,874-most-constrained of 3,058 rated counties for septic soil. Within Oklahoma alone it ranks 45 of 77.
Before you act on this
How this rating is built, and its real limits · Conventional vs. engineered septic systems