Marion County's SSURGO septic rating

Very limited

Marion County, AR's SSURGO dominant class comes back "Very limited", covering 85.1% of the county. Practically, that rules out a simple gravity system for most of the county - 85.1% of it sits in USDA's most-constrained bucket. The county spans 596.598 square miles, home to 17,593 people.

What this number does and doesn't tell you

Marion County's rating is an average across the whole county, not a promise about any one lot inside it. Budget $750-$1,850 for a real perc test on any specific parcel - that's the only figure a permit application accepts.

Marion County: conventional vs. engineered cost

85.1% of Marion 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.

How Marion County, AR compares

Among the 3,058 rated counties on this site, Marion County, AR ranks 1,675 most-constrained nationally, and 63 of 75 within Arkansas.

Before you act on this

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