Upson County's SSURGO septic rating
Somewhat limited
Upson County, GA's SSURGO dominant class comes back "Somewhat limited", covering 69.1% of the county. Modification usually rescues a conventional system at this rating - added fill or a larger field - rather than forcing a full engineered redesign. The county spans 323.467 square miles, home to 28,358 people.
What this number does and doesn't tell you
Two lots a mile apart in Upson County can carry different soil, even though they share one countywide rating. Budget $750-$1,850 for a real perc test on any specific parcel - that's the only figure a permit application accepts.
Upson County: conventional vs. engineered cost
69.1% of Upson County carrying a "Somewhat 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, Upson County, GA ranks 3,012 most-constrained nationally, and 140 of 159 within Georgia.
Related guides
How this rating is built, and its real limits · How a percolation test actually works