Sussex W Dept, 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.
About Sussex W Dept
Sussex W Dept serves about 2,201 people through 770 service connections, which makes it a small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in Sussex County, New Jersey. EPA system ID: NJ1921001; phone on file: 973-875-4831. They can tell you what your service line is made of and whether they pay to replace it.
Sussex W Dept'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 Sussex W Dept is 5.79 ppb across 19 monitoring periods, none of them over 15 ppb.
| 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 | 5.79 ppb |
| 2022 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 2021 | 0 (not detected) |
| 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) |
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. Sussex W Dept's reported as 0 (not detected) sits at the 27th percentile in New Jersey and the 31st nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Sussex County
59 other systems share Sussex County; 41 of them have a higher latest lead result than Sussex W Dept. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Sparta Twp Water Utility - Lake Mohawk | 17,625 | 1.01 ppb |
| Newton Water & Sewer Utility | 8,300 | 2.75 ppb |
| Hopatcong Water Dept | 7,224 | 9.37 ppb |
| Veolia Water New Jersey Vernon Valley | 5,517 | 0 (not detected) |
| Franklin Bd Of Public Works | 5,500 | 1.09 ppb |
| Stanhope W Dept | 3,730 | 5.88 ppb |
| Hamburg Board Of Public | 3,382 | 2.01 ppb |
| Ogdensburg W Dept | 2,800 | 1.66 ppb |
| Montague Water Co. | 2,165 | 2 ppb |
| Hardyston Twp Mua | 1,963 | 0 (not detected) |
Your move
Look up your address in Sussex W Dept'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 Sussex W Dept 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.