Marion County, GA's soil, for a septic absorption field
Very limited
In Marion County, GA, 61.7% of the surveyed land carries a "Very limited" rating for a standard septic drain field. Expect the ground itself to work against a plain gravity system; USDA's strictest bucket alone covers 61.7% of the county. Marion County, GA is 365.721 square miles with a population of 7,635.
What Marion County's reading doesn't cover
Nothing about Marion County, GA's SSURGO figure applies to a specific address - it's a county-wide average. A local percolation test, typically $750-$1,850 (around $1,300 typical), is the only way to know what one lot in Marion County will actually do.
What a system would cost here
With 61.7% of Marion County rating "Very limited", a standard gravity system is not a safe assumption here. The engineered-system range, $10,000-$40,000 (mound or aerobic treatment), is the more realistic number to plan around, against $3,000-$8,000 for a conventional system on the rare lot that passes.
Where this sits nationally
Nationally, Marion County, GA is the 2,691-most-constrained of 3,058 rated counties for septic soil. Within Georgia alone it ranks 79 of 159.
Related guides
How this rating is built, and its real limits · Conventional vs. engineered septic systems