Septic suitability in Saline County, AR
Very limited
Saline County, AR's SSURGO dominant class comes back "Very limited", covering 91.8% of the county. A standard gravity system routinely fails on ground like this; the same share of the county falls in USDA's worst absorption-field bucket outright. The county spans 723.516 square miles, home to 131,252 people.
What this number does and doesn't tell you
Saline 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.
Saline County: conventional vs. engineered cost
91.8% of Saline 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.
Where this sits nationally
Among the 3,058 rated counties on this site, Saline County, AR ranks 1,061 most-constrained nationally, and 33 of 75 within Arkansas.
Related guides
How this rating is built, and its real limits · Conventional vs. engineered septic systems