Oak Grove Mhp, 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.
Oak Grove Mhp at a glance
Oak Grove Mhp serves about 100 people through 49 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Ocean County, New Jersey. EPA system ID: NJ1523004; phone on file: 732-751-9520. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Oak Grove Mhp's lead record
Against the period ending 2025 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Oak Grove Mhp is 1.31 ppb across 11 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0 (not detected) |
| 2025 | 0 (not detected) |
| 2025 | 1 ppb |
| 2024 | 1.31 ppb |
| 2023 | 0.5 ppb |
| 2022 | 0 (not detected) |
| 2021 | 1 ppb |
| 2020 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2018 | 0 (not detected) |
| 2018 | 0.03 ppb |
How Oak Grove Mhp 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. Oak Grove Mhp's reported as 0 (not detected) sits at the 10th percentile in New Jersey and the 9th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Ocean County
54 other systems share Ocean County; 36 of them have a higher latest lead result than Oak Grove Mhp. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Veolia Water New Jersey Toms River | 123,184 | 1.1 ppb |
| Brick Township Mua | 81,829 | 0.52 ppb |
| Jackson Twp Mua | 37,224 | 0 (not detected) |
| Stafford Twp Water - Beach Haven West | 30,608 | 0 (not detected) |
| Lacey Twp Mua | 29,000 | 0 (not detected) |
| Lakewood Twp Mua | 27,614 | 2.12 ppb |
| Long Beach Twp Brant Bea | 25,300 | 1.2 ppb |
| Lavallette Water Dept | 25,000 | 1.19 ppb |
| Little Egg Harbor Twp Mu | 24,215 | 2 ppb |
| Manchester Twp Water Utility - Eastern | 23,980 | 0.4 ppb |
Next steps for Wall, NJ
Look up your address in Oak Grove Mhp'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 Oak Grove Mhp 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.