The drain field is the priciest part to replace, so catching failure early is worth real money.
When the seasonal water table climbs under sandy Pee Dee and Lowcountry soils, a tired field has nowhere to send wastewater, so it surfaces. Caught early, a field can sometimes be jetted, rejuvenated, or partially repaired for far less than a full replacement. Ignored, it becomes a $5,000-$20,000 job. If you are seeing these signs, get it looked at before it fails completely.
Talk to a licensed SC septic pro — no pressure, upfront pricing.