Logan County, OK Septic Rating

Logan County's SSURGO septic rating

Very limited

USDA puts Logan County, OK at "Very limited" for septic absorption fields, the dominant reading across 87.8% of the county's soil. Expect the ground itself to work against a plain gravity system; that share is already USDA's strictest bucket, not a lesser constraint layered on top. The county spans 744 square miles, home to 53,860 people.

What this number does and doesn't tell you

Nothing about Logan County, OK's SSURGO figure applies to a specific address - it's a county-wide average. Budget $750-$1,850 for a real perc test on any specific parcel - that's the only figure a permit application accepts.

Logan County: conventional vs. engineered cost

87.8% of Logan 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.

Logan County's rank among Oklahoma counties

Among the 3,058 rated counties on this site, Logan County, OK ranks 1,482 most-constrained nationally, and 25 of 77 within Oklahoma.

Before you act on this

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