Nj American Water - Oldwick, NJ
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (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. The latest 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
Nj American Water - Oldwick at a glance
Nj American Water - Oldwick serves about 246 people through 82 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Hunterdon County, New Jersey. EPA system ID: NJ1024001. Ask the utility on your bill for your address in their service line inventory.
Lead results over time
Against the period ending 2022 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Nj American Water - Oldwick is 1 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2016 | 1 ppb |
How Nj American Water - Oldwick compares
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. Nj American Water - Oldwick's reported as 0 (not detected) sits at the 15th percentile in New Jersey and the 17th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Hunterdon County
23 other systems share Hunterdon County; 13 of them have a higher latest lead result than Nj American Water - Oldwick. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Clinton Water Dept | 12,500 | 6.8 ppb |
| Flemington Water Department | 4,581 | 3.4 ppb |
| Veolia Water New Jersey Lambertville | 3,960 | 1 ppb |
| High Bridge W Dept | 3,300 | 6.7 ppb |
| Glen Gardner W Dept | 1,705 | 1.5 ppb |
| Milford W Dept | 1,453 | 2.5 ppb |
| Hampton Borough Water Depart | 1,401 | 1.5 ppb |
| Nj American Water - Frenchtown | 1,373 | 0 (not detected) |
| Edna Mahan Correctional | 940 | 3 ppb |
| Aqua Nj - Califon | 936 | 0 (not detected) |
What to do in your house
Look up your address in Nj American Water - Oldwick's service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Nj American Water - Oldwick 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. What a 90th-percentile result does and does not tell you: how to read a lead result. Small systems behave differently: why small systems go over more often.