West Caldwell Water Department, 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.
West Caldwell Water Department at a glance
West Caldwell Water Department serves about 10,759 people through 3,835 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 Essex County, New Jersey. EPA system ID: NJ0721001; phone on file: 973-226-2600. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
West Caldwell Water Department'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 West Caldwell Water Department is 4.89 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0 (not detected) |
| 2025 | 0 (not detected) |
| 2024 | 0 (not detected) |
| 2021 | 0.77 ppb |
| 2018 | 4.89 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. West Caldwell Water Department's reported as 0 (not detected) sits at the 33rd percentile in New Jersey and the 37th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Nearby utilities
19 other systems share Essex County; 12 of them have a higher latest lead result than West Caldwell Water Department. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Newark Water Department | 294,274 | 4.03 ppb |
| East Orange Water Commission | 75,000 | 1.59 ppb |
| Bloomfield Water Department | 53,315 | 2.2 ppb |
| Montclair Water Bureau | 40,150 | 0 (not detected) |
| Belleville Water Dept | 35,129 | 1.86 ppb |
| Orange Water Dept | 30,134 | 2.02 ppb |
| Nutley Water Dept | 29,500 | 0.55 ppb |
| Livingston Twp Div Of Water | 27,391 | 4.18 ppb |
| South Orange Water Department | 16,964 | 2 ppb |
| Verona Water Department | 13,641 | 0 (not detected) |
Next steps for West Caldwell, NJ
Look up your address in West Caldwell 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 West Caldwell 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. The lead result guide covers how utilities pick the homes they sample. Small systems behave differently: why small systems go over more often.