Riverside Mhp, NJ
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2021-2023). 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.
Who runs the water here
Riverside Mhp serves about 85 people through 36 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Warren County, New Jersey. EPA system ID: NJ2113002; phone on file: 908-475-5370. They can tell you what your service line is made of and whether they pay to replace it.
Every lead result on file
That is down 2.64 ppb from 2.64 ppb in the period ending 2020. The highest 90th-percentile result EPA holds for Riverside Mhp is 2.64 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 0 (not detected) |
| 2020 | 2.64 ppb |
| 2017 | 0.16 ppb |
How Riverside 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. Riverside Mhp's reported as 0 (not detected) sits at the 7th percentile in New Jersey and the 8th 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 Warren County; 15 of them have a higher latest lead result than Riverside Mhp. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Aqua Nj - Phillipsburg | 26,686 | 0 (not detected) |
| Hackettstown Mua | 22,000 | 5 ppb |
| Nj American Water - Washington/Oxford | 10,719 | 1 ppb |
| Allamuchy Twp Water & Sewer | 5,423 | 2.6 ppb |
| Nj American Water - Belvidere | 2,854 | 0 (not detected) |
| Alpha Municipal Water Works | 2,530 | 12 ppb |
| Township Of Blairstown Dpw | 800 | 1.01 ppb |
| Veolia Water Nj Independence Highland | 350 | 3.84 ppb |
| Country View Village, Llc | 310 | 1.14 ppb |
| Forest Manor Retirement Home | 224 | 0 (not detected) |
Next steps for Columbia, NJ
Look up your address in Riverside 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 Riverside 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. Why sampled homes are the worst-case ones is in the guide to reading the number. Small systems behave differently: why small systems go over more often.