St. Marys, GA
Lead detected, under the action levels
Latest 90th-percentile lead: 1 ppb (monitoring period 2023-2025). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. Lead was measured in sampled homes but the 90th percentile is under both action levels. EPA's health goal for lead is zero, so test your own tap if your home was built before 1986 or anyone in it is pregnant or a young child.
About St. Marys
St. Marys serves about 19,994 people through 8,327 service connections, which makes it a large system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Camden County, Georgia. EPA system ID: GA0390001; phone on file: 912-882-4415. Call that number and ask whether your address has a lead, galvanized or unknown service line.
St. Marys's lead record
Against the period ending 2022 (1.2 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for St. Marys is 1.4 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1 ppb |
| 2022 | 1.2 ppb |
| 2019 | 0 (not detected) |
| 2016 | 1.4 ppb |
Where this result ranks
Of the 1,681 Georgia systems with a lead result, the median latest reading is 0.68 ppb; 15 are over 15 ppb right now and 131 have gone over at some point. St. Marys's 1 ppb sits at the 56th percentile in Georgia and the 55th nationally (higher means more lead).
Neighbouring systems
9 other systems share Camden County; 2 of them have a higher latest lead result than St. Marys. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Kingsland | 25,245 | 0 (not detected) |
| Usn-Kings Bay Submarine Base | 9,730 | 11 ppb |
| Woodbine | 1,512 | 1.7 ppb |
| Sanctuary Cove Water System | 1,018 | 0 (not detected) |
| Elliott`S Bluff | 419 | 0 (not detected) |
| River Place Plantation | 350 | 0 (not detected) |
| Davis Bluff Estates | 100 | 0 (not detected) |
| Camden Co.-Flea Hill Recreation, Inc. | 90 | 0 (not detected) |
| Estates At Sanctuary Cove | 47 | 0 (not detected) |
Your move
Test your own tap with a certified lab first-draw sample; St. Marys, GA may offer free or low-cost kits through the utility. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask St. Marys whether it covers that cost before hiring anyone - many utilities now do.
These figures describe homes the utility sampled, not your tap. Only your service line record or a test of your own water answers the question for your house. Why sampled homes are the worst-case ones is in the guide to reading the number. The action level is dropping - the 10 ppb rule from 2027.