Roxbury Twp W Dept-Sky V, NJ
Exceeded the action level in the past
Latest 90th-percentile lead: 4.9 ppb (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 result is under the action level, but this system has gone over 15 ppb before. Lead comes from pipes, not the source water, so a home with a lead service line can still be exposed. Test your own tap.
About Roxbury Twp W Dept-Sky V
Roxbury Twp W Dept-Sky V serves about 4,478 people through 1,544 service connections, which makes it a medium-sized system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Morris County, New Jersey. EPA system ID: NJ1436004; phone on file: 973-448-2018. They can tell you what your service line is made of and whether they pay to replace it.
Roxbury Twp W Dept-Sky V's lead record
Against the period ending 2025 (4.26 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Roxbury Twp W Dept-Sky V is 24.3 ppb across 17 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 4.9 ppb |
| 2025 | 4.26 ppb |
| 2025 | 24.3 ppb over 15 |
| 2024 | 0 (not detected) |
| 2024 | 4.56 ppb |
| 2023 | 3.27 ppb |
| 2023 | 1.61 ppb |
| 2022 | 2.77 ppb |
| 2022 | 2.25 ppb |
| 2021 | 1.92 ppb |
| 2021 | 2.77 ppb |
| 2020 | 6.96 ppb |
| 2020 | 3.7 ppb |
| 2019 | 4.61 ppb |
| 2019 | 2.58 ppb |
| 2017 | 3.72 ppb |
| 2017 | 3.72 ppb |
How Roxbury Twp W Dept-Sky V 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. Roxbury Twp W Dept-Sky V's 4.9 ppb sits at the 91st percentile in New Jersey and the 90th nationally (higher means more lead).
Nearby utilities
60 other systems share Morris County; 4 of them have a higher latest lead result than Roxbury Twp W Dept-Sky V. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Southeast Morris County Mua | 62,349 | 1.1 ppb |
| Parsippany-Troy Hills Water Department | 50,400 | 4.2 ppb |
| Dover Water Commission | 27,806 | 2.78 ppb |
| Montville Twp Mua | 22,000 | 2.31 ppb |
| Denville Twp Water Dept | 15,881 | 4.31 ppb |
| Madison Water Dept | 15,820 | 2.55 ppb |
| Randolph Twp Public Works Dept | 14,820 | 3.35 ppb |
| Pequannock Twp Water Department | 14,010 | 3.56 ppb |
| Rockaway Twp Water Dept | 14,000 | 2.57 ppb |
| Nj American Water - Roxbury | 11,793 | 4 ppb |
Your move
Test your own tap with a certified lab first-draw sample; Landing, NJ may offer free or low-cost kits through the utility. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Roxbury Twp W Dept-Sky V 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. Why an old exceedance still matters: over the limit before, under it now.