North Caldwell - Hilltop, NJ
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2024-2026). 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.
North Caldwell - Hilltop at a glance
North Caldwell - Hilltop serves about 208 people through 15 service connections, which makes it a very small 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: NJ0715002; phone on file: 973-228-6414. They can tell you what your service line is made of and whether they pay to replace it.
North Caldwell - Hilltop's lead record
That is down 5.5 ppb from 5.5 ppb in the period ending 2023. The highest 90th-percentile result EPA holds for North Caldwell - Hilltop is 5.5 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0 (not detected) |
| 2023 | 5.5 ppb |
| 2020 | 0 (not detected) |
| 2017 | 2.1 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. North Caldwell - Hilltop's reported as 0 (not detected) sits at the 14th percentile in New Jersey and the 15th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Essex County
19 other systems share Essex County; 12 of them have a higher latest lead result than North Caldwell - Hilltop. 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) |
Your move
Look up your address in North Caldwell - Hilltop'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 North Caldwell - Hilltop 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.