Georgia well water testing is the only way to confirm your private well is delivering safe drinking water. Georgia has an estimated 450,000 to 560,000 private wells, and unlike public water systems, private well owners receive no automatic testing from the state. The responsibility falls entirely on you. With naturally occurring arsenic in the Gulf Trough formation, PFAS contamination at 19 DoD sites, and agricultural runoff in the Flint River basin, Georgia's groundwater faces real threats that only lab testing can detect.
Over 26,000 private well water samples collected between 2010 and 2022 revealed arsenic and nitrate exceedances concentrated in the Coastal Plain province. Those are just the wells that got tested — most Georgia well owners have never had their water analyzed. This guide covers what you should test for, when, and how to make sense of the results.
The right testing panel depends on where you live and what your well is exposed to. At minimum, every well water test GA homeowners order should cover these basics annually:
| Contaminant | Why It Matters in Georgia | EPA Limit | Test Cost |
|---|---|---|---|
| Total coliform / E. coli | Indicates bacterial contamination from surface water or septic | 0 (absent) | $25–$50 |
| Nitrates | Agricultural runoff, especially in south GA farm country | 10 mg/L | $15–$35 |
| pH | Georgia well water ranges from acidic (Blue Ridge) to neutral | 6.5–8.5 | $10–$25 |
| Iron / Manganese | Common across all three geological provinces | 0.3 mg/L (Fe), 0.05 mg/L (Mn) | $20–$40 |
| Hardness | Limestone regions in south GA produce hard water | No MCL (aesthetic) | $15–$25 |
Beyond the basics, Georgia's geology and industrial history make several additional tests important depending on your location.
Arsenic — Critical for wells in the Gulf Trough formation across south Georgia. Camden, Irwin, Tift, Bibb, Lowndes, and Thomas counties have documented elevated arsenic. The EPA MCL is 10 ppb. Test every 3 to 5 years or after any well work.
PFAS — Essential if you live near any of the 19 DoD sites, the Dalton carpet corridor, or communities with documented PFAS detections. Read our detailed PFAS Georgia well water testing guide for contamination maps and treatment options.
Lead — More common in the Blue Ridge province where older well casings and plumbing fixtures may contain lead solder. Test if your home was built before 1988.
Radon and uranium — The Piedmont province's crystalline bedrock can contain naturally occurring radioactive elements. If your well is drilled into granite or gneiss, a radon-in-water test is worth running.
Georgia private well testing requires a certified laboratory for results you can trust and act on. Home test kits provide rough screening but cannot match the accuracy of lab analysis, especially for contaminants like PFAS that require detection at parts-per-trillion levels.
County health departments. Many Georgia county health departments offer basic well water testing — typically coliform bacteria and nitrates — at reduced rates. Contact your local Board of Health to ask about available testing programs. Testing through the county is often the cheapest option for basic screening.
Certified private labs. For comprehensive testing including metals, minerals, PFAS, and volatile organic compounds, you will need a certified private laboratory. National labs like Eurofins, Pace Analytical, and SGS accept samples by mail. Several Georgia-based labs also provide testing services. Expect to pay $100 to $250 for a standard minerals and metals panel, and $200 to $500 to add PFAS.
Sample collection tips. Proper collection is critical. Run the faucet for 2 to 3 minutes before filling the sample container. Use the bottles provided by the lab — not random containers. Keep samples cold during transport. Label everything clearly. A contaminated or improperly collected sample wastes your money and gives unreliable results.
Georgia sits on three distinct geological provinces, each creating different well water quality georgia homeowners need to understand.
Blue Ridge Province (north Georgia mountains). Wells in Rabun, Gilmer, Fannin, Union, and Towns counties are drilled into fractured crystalline rock. Water yields can be unpredictable. Common concerns include low pH (acidic water), radon, uranium, and lead from older well casings. Iron and manganese staining is frequent. Wells are typically 100 to 400 feet deep.
Piedmont Province (central Georgia including metro Atlanta). The Piedmont stretches from the mountains to the fall line, covering counties like Forsyth, Cherokee, Hall, Gwinnett, and Fulton. Wells tap into fractured bedrock beneath the weathered clay mantle. Georgia's red clay soils affect surface drainage but not necessarily deep groundwater quality. Concerns include iron, manganese, and potential radon. Wells range from 100 to 600 feet deep.
Coastal Plain Province (south Georgia). Everything south of the fall line sits on the Coastal Plain, where wells access the productive Floridan aquifer system. Water quality is generally good, but the Gulf Trough formation introduces naturally occurring arsenic in Camden, Irwin, Tift, and surrounding counties. Shallow wells near agricultural operations face nitrate contamination risk. Saltwater intrusion threatens coastal wells in Chatham, Glynn, and Camden counties.
Testing once and forgetting about it is not enough. Well water quality changes over time due to seasonal fluctuations, construction activity, agricultural practices, and aging well components. Here is a practical testing schedule for Georgia well owners.
Georgia law requires that wells be chlorinated to at least 50 ppm with a 2-hour contact time before initial use. After that initial disinfection, ongoing testing is up to the homeowner.
Lab results arrive as a list of contaminants with their detected levels and the corresponding EPA maximum contaminant levels (MCLs). Anything above the MCL requires action. Results below the MCL but above half the limit warrant monitoring.
Bacteria detected: Do not drink the water. Shock chlorinate the well by pouring a bleach solution down the casing, waiting 12 to 24 hours, then flushing and retesting. Persistent bacteria after shock chlorination may indicate a well casing defect that needs professional repair.
High iron or manganese: Not a health hazard at typical Georgia levels but causes staining, taste issues, and plumbing buildup. Whole-house iron filtration systems cost $800 to $2,500 installed.
Elevated arsenic: Any detection above 10 ppb requires treatment. Reverse osmosis or specialized arsenic filtration media are effective. Wells in the Gulf Trough area should test for arsenic before using water for any purpose.
High nitrates: Levels above 10 mg/L are unsafe, especially for infants. Sources include agricultural fertilizer, livestock waste, and failing septic systems. Identify and address the contamination source, and use reverse osmosis for drinking water in the meantime.
Find certified well water testing professionals through our Georgia well water testing directory. For treatment solutions, visit our Georgia water treatment services page. Browse the full Georgia directory for all septic and well water providers in your county.
A basic bacteria and nitrate test costs $25 to $70 through your county health department. A comprehensive minerals and metals panel from a private lab runs $100 to $250. Adding PFAS testing brings the total to $300 to $600. County health departments often offer the cheapest basic testing option.
Georgia does not require well water testing at the state level for property transfers. However, most mortgage lenders require a bacteria and nitrate test at minimum. FHA and VA loans have specific water quality requirements that must be met before closing. Cash transactions have no testing requirement, but buyers should insist on testing anyway.
You cannot know without testing. Many dangerous contaminants — arsenic, PFAS, bacteria, nitrates — are invisible, odorless, and tasteless. Georgia's geological diversity and industrial history create contamination risks that vary by county and even by property. Testing is the only way to confirm safety.
For bacteria: stop drinking the water immediately and shock chlorinate the well. Retest after 2 weeks. For chemical contaminants like arsenic or PFAS: install appropriate treatment systems and retest to confirm effectiveness. For persistent issues, contact your county health department for guidance specific to your area and contamination type.
Home test kits are useful for quick screening between professional tests but lack the accuracy and legal standing of certified lab analysis. They cannot detect PFAS at the parts-per-trillion levels required by current standards. For real estate transactions, health decisions, and baseline assessments, always use a certified laboratory. Home kits are no substitute for proper georgia well water testing.
Connect with licensed professionals in Georgia for your septic or well water needs.
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