Lyndhurst Water Department, 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.
Who runs the water here
Lyndhurst Water Department serves about 22,000 people through 6,000 service connections, which makes it a large system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in Bergen County, New Jersey. EPA system ID: NJ0232001; phone on file: 201-438-5478. They can tell you what your service line is made of and whether they pay to replace it.
Every lead result on file
Against the period ending 2022 (0.9 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Lyndhurst Water Department is 5.19 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2022 | 0.9 ppb |
| 2019 | 3.14 ppb |
| 2016 | 5.19 ppb |
Against other New Jersey systems
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. Lyndhurst Water Department's reported as 0 (not detected) sits at the 36th percentile in New Jersey and the 39th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Bergen County
19 other systems share Bergen County; 17 of them have a higher latest lead result than Lyndhurst Water Department. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Ridgewood Water | 61,700 | 2.61 ppb |
| Fair Lawn Water Dept | 35,564 | 2.5 ppb |
| Garfield Water Department | 30,487 | 3.4 ppb |
| Mahwah Water Department | 26,777 | 4.38 ppb |
| Passaic Valley Wc Lodi Wd | 24,136 | 0.85 ppb |
| Elmwood Park Water Dept | 20,374 | 0 (not detected) |
| Park Ridge Water Dept | 16,466 | 1.4 ppb |
| Pvwc-North Arlington | 15,392 | 1.13 ppb |
| Ramsey Water Dept | 15,207 | 0 (not detected) |
| Saddle Brook Water Dept | 13,155 | 2.02 ppb |
What to do in your house
Look up your address in Lyndhurst Water Department'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 Lyndhurst Water Department 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. A zero today does not rule out a jump later - the rules are tightening in 2027.