Aqua Nj - Riegel Ridge, NJ
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (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. 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.
Aqua Nj - Riegel Ridge at a glance
Aqua Nj - Riegel Ridge serves about 621 people through 239 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws groundwater, in Hunterdon County, New Jersey. EPA system ID: NJ1015003; phone on file: 609-618-3850. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
Against the period ending 2025 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Aqua Nj - Riegel Ridge is 7.4 ppb across 16 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0 (not detected) |
| 2025 | 0 (not detected) |
| 2025 | 0 (not detected) |
| 2024 | 0 (not detected) |
| 2024 | 0 (not detected) |
| 2023 | 0 (not detected) |
| 2023 | 2 ppb |
| 2022 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2021 | 2 ppb |
| 2021 | 0 (not detected) |
| 2020 | 0 (not detected) |
| 2020 | 4 ppb |
| 2019 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2018 | 7.4 ppb |
Where this result ranks
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. Aqua Nj - Riegel Ridge's reported as 0 (not detected) sits at the 20th percentile in New Jersey and the 24th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Nearby utilities
23 other systems share Hunterdon County; 13 of them have a higher latest lead result than Aqua Nj - Riegel Ridge. 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) |
Your move
Look up your address in Aqua Nj - Riegel Ridge'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 Aqua Nj - Riegel Ridge 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. A zero today does not rule out a jump later - the rules are tightening in 2027.