Georgia septic rules, in plain English
If you own a home on a septic system in Georgia, here's the short version: the state Department of Public Health sets the rules, but your county health department is who you actually deal with. You can't put in a new system, replace one, or repair a failed one without a county permit — and an inspector has to look at your soil and your lot before they'll approve it.
If you own a home on a septic system in Georgia, here's the short version: the state Department of Public Health sets the rules, but your county health department is who you actually deal with. You can't put in a new system, replace one, or repair a failed one without a county permit — and an inspector has to look at your soil and your lot before they'll approve it. That soil test matters more than almost anything, because Georgia's ground ranges from fast-draining beach sand in the south to dense red clay around Atlanta that water barely moves through. Georgia does not force you to pump your tank on a schedule or to get an inspection just because you're selling. But in practice, if your buyer is getting a mortgage, the lender will want proof the system works — so an inspection (and usually a pump-out to see inside the tank) happens anyway. Pumping every 3 to 5 years is the standard advice and is far cheaper than replacing a drainfield. Anyone you hire to install or pump should be DPH-certified, and you can look them up on the state's public list before you write a check.
What this means for you
The rules change depending on where you are in the process.
Georgia doesn't require a sale inspection, but get one anyway — and most lenders will insist. Ask for the original county permit and the 'as-built' diagram so you know where the tank and drainfield sit. Have the tank pumped so the inspector can see both compartments. Red flags: lush green strips or soggy spots over the drainfield, slow drains, or sewage odor.
No state-mandated inspection, but pump and inspect before listing — it heads off renegotiation when the buyer's lender asks for proof. Dig up your permit records from the county health department. A clean Performance Evaluation Report (often the county Form 14.L, roughly $400-$600) reassures financed buyers.
Start at your county environmental health office, not a contractor. They'll require a soil/site evaluation before anything else, and your lot must pass on soil type, depth to water table, and depth to rock. Use a DPH-certified installer. Budget $100 for the permit plus 2-6 weeks for review. Bad soil may force an alternative system, which costs more.
Pump every 3-5 years depending on tank size and how many people live there. Don't drive over or build on the drainfield, keep roof and surface water diverted away from it, and skip 'septic additives' — they don't replace pumping. Aerobic or advanced systems may carry a required maintenance contract; keep it current.
Setbacks exist to protect your drinking water: a tank must sit at least 50 feet from a well, and the drainfield at least 100 feet. Lots near rivers, lakes, the coast, or high water tables face stricter siting and may need a mounded or advanced system. Septic failures near surface water are a documented pollution source the rules are designed to prevent.
The rules, explained
Each rule, what it actually requires, and the reason it exists.
County permit before any install, repair, or modification
You must get a construction permit from your county Board of Health before putting in, changing, or fixing a septic system. The permit is good for up to 12 months.
It lets a health official confirm your soil and lot can actually treat sewage safely before anything goes in the ground — fixing a bad install later costs far more than doing it right once.
Soil and site evaluation is mandatory
An evaluator checks your soil type, how fast it drains, depth to the water table, and depth to rock before a permit is issued. Your lot can be denied if it fails.
Septic systems treat waste by filtering it through soil. Sand drains too fast and clay too slow, so the soil test decides whether a standard system works or you need a pricier alternative.
Use DPH-certified contractors
Installers, pumpers, inspectors, and soil classifiers must hold a current Georgia DPH certification, renewed on even-numbered years with continuing education.
Certification means they passed exams and know the code — and you can verify them on a public state list, which protects you from unlicensed work that won't pass inspection.
No statewide pumping mandate, but maintenance is on you
Georgia doesn't set a legal pump-out interval for most homes, but DPH recommends every 3-5 years; advanced systems may have a required maintenance contract.
Solids build up and eventually clog the drainfield — the most expensive part to replace. Regular pumping is cheap insurance against a multi-thousand-dollar failure.
Separation distances (setbacks) from wells and water
Tanks must be at least 50 feet from a well and drainfields at least 100 feet; greater distances apply near surface water and cesspools.
Untreated effluent can carry bacteria and nitrates. Distance gives the soil room to clean the water before it reaches a well or a creek you'd otherwise drink from or swim in.
Two required inspections during install
The county inspects before the system is covered and again at final completion before it can be used.
Once it's buried you can't see mistakes. The pre-cover inspection catches wrong materials, sizing, or placement while they're still cheap and easy to fix.
The letter of the law
The official statutes and licensing details behind the plain-English summary above.
Georgia runs one of the largest septic footprints in the Southeast, with roughly 37% of homes — well over a million systems — relying on on-site sewage management. The Georgia Department of Public Health (DPH) writes the rules under Chapter 511-3-1, but the day-to-day work happens locally: the state's 159 county Boards of Health, organized into 18 public health districts, issue construction permits, conduct the soil and site evaluations, and run the two required inspections (pre-cover and final) before a system can be used. No system may be installed, modified, or repaired without a county permit, which is valid for up to 12 months. Installers, pumpers, soil classifiers, and inspectors are certified at the state level by DPH's Environmental Health Section, and DPH publishes public lists of every certified contractor. Georgia does not mandate a point-of-sale inspection or a fixed pumping schedule statewide, though FHA/VA and most conventional lenders effectively require proof of a working system at closing. Wide swings in geology — sandy Coastal Plain soils south of the Fall Line, sticky red Piedmont clay through metro Atlanta, thin mountain soils in the Blue Ridge, and karst limestone in the northwest — mean siting and design vary dramatically by region.
Licensing
Georgia Department of Public Health, Environmental Health Section (statewide certification; county Boards of Health permit and inspect)
GA Comp. R. & Regs. Chapter 511-3-1 — On-Site Sewage Management Systems
The core rule set governing site evaluation, permitting, design, installation, repair, and setbacks for all conventional and alternative septic systems statewide. Last major revision effective 01/01/2016. Requires a county construction permit before any install, modification, or repair, valid up to 12 months.
Source →DPH Manual for On-Site Sewage Management Systems
Technical companion to Chapter 511-3-1 (updated 2024-2025). Defines soil-evaluation checklists, absorption-field sizing by bedroom count, separation distances, and approved alternative technologies that county environmental health staff apply.
Source →O.C.G.A. Title 31, Chapter 2A & Title 12 (water quality)
Statutory authority empowering DPH to write onsite-sewage rules and county Boards of Health to enforce them; related EPD water-quality statutes protect groundwater and surface waters that septic setbacks are designed to safeguard.
Source →Frequently asked questions
Do I need a septic inspection to sell my house in Georgia?
Not by state law. Georgia has no point-of-sale inspection mandate. But FHA, VA, and most conventional lenders require proof the system works, so a financed sale almost always triggers an inspection anyway. Pumping and inspecting before you list is the smart move.
How often do I have to pump my septic tank in Georgia?
There's no statewide legal interval for typical homes. DPH recommends every 3-5 years, adjusted for tank size and household size. Aerobic or other advanced systems may require a maintenance contract that sets a schedule.
Who issues septic permits in Georgia?
Your county Board of Health, through its environmental health office. The state DPH writes the rules (Chapter 511-3-1), but counties do the soil evaluations, permitting, and inspections. Permits run about $100 and are valid up to 12 months.
How much does a septic inspection or pump-out cost in Georgia?
A pump-out typically runs about $237-$375. A county Performance Evaluation Report for a sale is roughly $400-$600. A new-system permit is about $100, separate from design and installation costs.
How do I check if a septic contractor is licensed in Georgia?
DPH's Environmental Health Section publishes public lists of certified installers and pumpers at dph.georgia.gov/environmental-health/certification-information. Always confirm before hiring — unlicensed work won't pass county inspection.
Why might my lot fail the soil test?
Common reasons: heavy clay that won't drain (much of the Piedmont), a high water table or seasonal wetness (Coastal Plain and floodplains), shallow rock (mountains and northwest Georgia), or too little usable soil depth. A failed lot may still work with an alternative or mounded system at higher cost.