Harding Woods Mhp, NJ
Exceeded the action level in the past
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 result is under the action level, but this system has gone over 15 ppb before. Lead comes from pipes, not the source water, so a home with a lead service line can still be exposed. Test your own tap.
About Harding Woods Mhp
Harding Woods Mhp serves about 1,276 people through 319 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws groundwater, in Salem County, New Jersey. EPA system ID: NJ1710001; phone on file: 410-241-0961. 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 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Harding Woods Mhp is 24 ppb across 23 monitoring periods, 2 of them over the 15 ppb action level.
| 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 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2021 | 2.2 ppb |
| 2020 | 0 (not detected) |
| 2020 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2018 | 0 (not detected) |
| 2018 | 0 (not detected) |
| 2017 | 0 (not detected) |
| 2017 | 0 (not detected) |
| 2016 | 0 (not detected) |
| 2016 | 0 (not detected) |
| 2016 | 24 ppb over 15 |
| 2016 | 24 ppb over 15 |
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. Harding Woods Mhp's reported as 0 (not detected) sits at the 24th percentile in New Jersey and the 28th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
14 other systems share Salem County; 7 of them have a higher latest lead result than Harding Woods Mhp. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Nj American Water - Penns Grove | 14,406 | 0 (not detected) |
| Pennsville Twsp. Water Depart. | 13,500 | 0 (not detected) |
| Nj American Water - Salem City | 4,794 | 2 ppb |
| Woodstown Water Department | 4,455 | 0 (not detected) |
| Elmer Boro W Dept | 1,385 | 1.5 ppb |
| Holly Tree Acres System 1 | 300 | 0 (not detected) |
| Country Club Estates | 300 | 5.3 ppb |
| Big Oak Rehab | 259 | 3.75 ppb |
| Picnic Grove Mobile Homes | 250 | 0.46 ppb |
| Auburn Village Water Sup | 200 | 6.9 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Pittsgrove Township, 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 Harding Woods 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. Why an old exceedance still matters: over the limit before, under it now.