Cross County's SSURGO septic rating
Very limited
Cross County, AR: USDA's soil survey calls 94.2% of the county "Very limited" for a septic leach field. Practically, that rules out a simple gravity system for most of the county - 94.2% of it sits in USDA's most-constrained bucket. The county spans 616.318 square miles, home to 16,194 people.
What this number does and doesn't tell you
Nothing about Cross County, AR'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.
Cross County: conventional vs. engineered cost
94.2% of Cross 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, Cross County, AR ranks 761 most-constrained nationally, and 18 of 75 within Arkansas.
Further reading
How this rating is built, and its real limits · Conventional vs. engineered septic systems