Septic suitability in Independence County, AR
Very limited
Independence County, AR's SSURGO dominant class comes back "Very limited", covering 89.8% of the county. Practically, that rules out a simple gravity system for most of the county - 89.8% of it sits in USDA's most-constrained bucket. The county spans 763.712 square miles, home to 38,345 people.
What this number does and doesn't tell you
This is a countywide, area-weighted figure across every soil survey map unit in Independence County, AR - never a reading for one specific parcel. Budget $750-$1,850 for a real perc test on any specific parcel - that's the only figure a permit application accepts.
Independence County: conventional vs. engineered cost
89.8% of Independence 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.
Independence County's rank among Arkansas counties
Among the 3,058 rated counties on this site, Independence County, AR ranks 1,289 most-constrained nationally, and 39 of 75 within Arkansas.
Related guides
How this rating is built, and its real limits · Conventional vs. engineered septic systems