Septic suitability in Kershaw County, SC
Very limited
Kershaw County, SC's SSURGO dominant class comes back "Very limited", covering 73% of the county. That reading means a conventional system is a poor bet here - 73% of Kershaw County lands in the strictest "very limited" bucket USDA uses. The county spans 726.612 square miles, home to 71,698 people.
What this number does and doesn't tell you
Nothing about Kershaw County, SC'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.
Kershaw County: conventional vs. engineered cost
73% of Kershaw 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, Kershaw County, SC ranks 2,370 most-constrained nationally, and 22 of 46 within South Carolina.
Related guides
How this rating is built, and its real limits · Conventional vs. engineered septic systems