Lake Tamarack W Co, 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.
Who runs the water here
Lake Tamarack W Co serves about 1,000 people through 264 service connections, which makes it a small system under EPA's size classes. It is privately owned and draws groundwater, in Sussex County, New Jersey. EPA system ID: NJ1911003. Ask the utility on your bill for your address in their service line inventory.
Every lead result on file
That is down 3.58 ppb from 3.58 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for Lake Tamarack W Co is 5.4 ppb across 9 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0 (not detected) |
| 2025 | 3.58 ppb |
| 2025 | 1.43 ppb |
| 2024 | 1.8 ppb |
| 2024 | 2.11 ppb |
| 2023 | 5.4 ppb |
| 2020 | 0 (not detected) |
| 2017 | 0 (not detected) |
| 2016 | 0 (not detected) |
How Lake Tamarack W Co 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. Lake Tamarack W Co's reported as 0 (not detected) sits at the 23rd percentile in New Jersey and the 27th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Nearby utilities
59 other systems share Sussex County; 41 of them have a higher latest lead result than Lake Tamarack W Co. 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 |
| Sussex W Dept | 2,201 | 0 (not detected) |
| Montague Water Co. | 2,165 | 2 ppb |
Your move
Look up your address in Lake Tamarack W Co'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 Lake Tamarack W Co 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.