Hammonton Water Dept, NJ
Lead detected, under the action levels
Latest 90th-percentile lead: 0.38 ppb (monitoring period 2026-2026). 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.
Hammonton Water Dept at a glance
Hammonton Water Dept serves about 12,153 people through 3,845 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 Atlantic County, New Jersey. EPA system ID: NJ0113001; phone on file: 609-567-4332. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Every lead result on file
Against the period ending 2025 (0.56 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Hammonton Water Dept is 4 ppb across 12 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0.38 ppb |
| 2025 | 0.56 ppb |
| 2024 | 0.5 ppb |
| 2023 | 0.8 ppb |
| 2022 | 0 (not detected) |
| 2021 | 3 ppb |
| 2020 | 4 ppb |
| 2019 | 4 ppb |
| 2019 | 3 ppb |
| 2018 | 0 (not detected) |
| 2018 | 0.64 ppb |
| 2017 | 0 (not detected) |
Against other New Jersey systems
Of the 605 New Jersey systems with a lead result, the median latest reading is 1 ppb; 5 are over 15 ppb right now and 52 have gone over at some point. Hammonton Water Dept's 0.38 ppb sits at the 41st percentile in New Jersey and the 42nd nationally (higher means more lead).
Neighbouring systems
25 other systems share Atlantic County; 14 of them have a higher latest lead result than Hammonton Water Dept. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Atlantic City Mua | 152,415 | 0 (not detected) |
| Nj American Water - Atlantic County | 120,146 | 1 ppb |
| Margate City Water Department | 23,500 | 1.36 ppb |
| Ventnor City Water & Sewer Utility | 22,150 | 1.33 ppb |
| Hamilton Township Mua | 21,720 | 1.86 ppb |
| Brigantine Water Department | 14,450 | 2.49 ppb |
| Longport Water Department | 10,777 | 2.27 ppb |
| Buena Borough Mua | 4,880 | 0 (not detected) |
| Nj American Water - Egg Harbor City | 4,300 | 3 ppb |
| The Oaks Of Weymouth Water Co. | 750 | 3.1 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Hammonton, NJ 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 Hammonton Water Dept 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. Systems that went over once often dip back under; here is what that means.