Who Regulates Septic Systems in South Carolina
Onsite wastewater systems in SC are regulated by the South Carolina Department of Environmental Services (SCDES) under Regulation 61-56. (Older documents say DHEC — that program now lives in SCDES.) Anyone who installs, repairs, or pumps septic systems for others must be SCDES-licensed, and new systems must be permitted before installation.
When You Need a Permit
New system installations, most replacements, and many significant repairs require a permit. Routine pumping and minor maintenance do not. If a contractor tells you a new system ‘doesn’t need a permit,’ that’s a red flag — walk away.
How the Process Works
It starts with a site and soil evaluation by a licensed evaluator, which determines what kind of system your lot can support. The permit application goes to the regional SCDES office with the evaluation and system design. After installation, the system is inspected and approved before it’s put into use. Timelines vary with application volume, so build permitting time into any new-build or replacement schedule.
Why This Protects You
The permit and inspection trail is your proof the system was designed for your soil and installed correctly — it matters for your family’s health, your well water, and your home’s resale value. Our installation work follows this process on every job. See our installation page or call (843) 555-0137 with questions about your lot.