We read 13 results from Monroe Twp Utility Department’s 2025 water quality report. No results over a legal limit; 6 above a health goal or guideline.
Serves about 36,000 people · Water system ID NJ1213002 · Read the district’s 2025 report (opens in a new tab)
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Results from the 2025 report
Each number is copied from the district’s report and links to the page it’s printed on. Where the report lists several plants, wells or purchased water, the highest is shown.
| Contaminant | Result | Health goal | Legal limit | What it means |
|---|---|---|---|---|
| Gross alpha (radioactivity)average · range ND to 13.5 · listed as a violation in the report · Wells · 2025 report, page 2 | 3.39 pCi/L | 0 pCi/L | 15 pCi/L | Above the health goalThe health goal is zero |
| Lead90th percentile of homes tested, 0 over the action level · listed as a violation in the report · Customer taps · 2025 report, page 1 | 1.69 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal8.5x the health goal |
| PFOA (a PFAS)average · range ND to 13.1 · listed as a violation in the report · Wells · 2025 report, page 2 | 3.57 ppt | 0.007 ppt | 14 ppt (New Jersey) now; 4 ppt from 2029 | Above the health goal510x the health goal |
| PFOS (a PFAS)average · range ND to 7.2 · listed as a violation in the report · Wells · 2025 report, page 2 | 2.47 ppt | 1 ppt | 13 ppt (New Jersey) now; 4 ppt from 2029 | Above the health goal2.5x the health goal |
| Radium (combined 226 + 228)average · range ND to 7 · listed as a violation in the report · Wells · 2025 report, page 2 | 1.59 pCi/L | 0 pCi/L | 5 pCi/L | Above the health goalThe health goal is zero |
| Thalliumhighest measured · range ND to 0.3 · listed as a violation in the report · printed as 0.0003 ppm · Wells · 2025 report, page 1 | 0.3 ppb | 0.1 ppb | 2 ppb | Above the health goal3x the health goal |
| Bariumhighest measured · range ND to 0.01 · listed as a violation in the report · Wells · 2025 report, page 1 | 0.01 ppm | 2 ppm | 2 ppm | Below the health goal |
| Berylliumhighest measured · range ND to 0.3 · listed as a violation in the report · printed as 0.0003 ppm · Wells · 2025 report, page 1 | 0.3 ppb | 1 ppb | 4 ppb | Below the health goal |
| Chlorineaverage · range 0.2 to 0.92 · listed as a violation in the report · Distribution system · 2025 report, page 2 | 0.78 ppm | None set | 4 ppm | Below the legal limit |
| Copper90th percentile of homes tested, 0 over the action level · listed as a violation in the report · Customer taps · 2025 report, page 1 | 0.21 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (HAA5)average · range ND to 1.26 · listed as a violation in the report · Distribution system · 2025 report, page 2 | 0.09 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)average · range ND to 8.23 · listed as a violation in the report · Distribution system · 2025 report, page 2 | 3.51 ppb | None set | 80 ppb | Below the legal limit |
| Nitrate (as N)highest measured · range ND to 2.89 · listed as a violation in the report · Wells · 2025 report, page 1 | 2.89 ppm | 10 ppm | 10 ppm | Below the health goal |
Utility results describe the whole system, measured where water enters the pipes, not your tap. Your home’s plumbing can add lead or copper.
EPA testing for PFAS and lithium
EPA’s own nationwide testing (UCMR 5) found these in Monroe Twp Utility Department’s water between Mar 2023 and Sep 2024. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.
- PFOA11.2 pptFound in 4 of 10 samples · highest resultAbove the federal limit that takes effect in 2029 (4 ppt)
- PFOS11.5 pptFound in 4 of 10 samples · highest resultAbove the federal limit that takes effect in 2029 (4 ppt)
- PFHxS13.6 pptFound in 5 of 10 samples · highest resultNo federal limit in force for this one
- Lithium20.7 ppbFound in 2 of 10 samples · highest resultAbove EPA’s health reference level of 10 ppb (a guide, not a legal limit)
Source: EPA UCMR 5 occurrence data. The highest single result is shown; one high sample doesn’t mean every glass is that high.
What you can do
Nothing here is an emergency notice: if the district has a violation, it must tell customers directly. If you’d like to lower these at your tap, these are the treatments that remove them, and the catalog shows the models certified for each. Ranking is by certified removal; commissions never change the order.
Radium and uranium
Found: Gross alpha (radioactivity), Radium (combined 226 + 228)
What removes it: Reverse osmosis.
Lead
Found: Lead
What removes it: Certified carbon block or RO.
PFAS ("forever chemicals")
Found: PFOA (a PFAS), PFOS (a PFAS), PFOA (EPA testing), PFOS (EPA testing)
What removes it: Reverse osmosis.
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