We read 18 results from Washington Township Mua’s 2025 water quality report. No results over a legal limit; 6 above a health goal or guideline.
Serves about 48,000 people · Water system ID NJ0818004 · Read the district’s 2025 report (opens in a new tab)
Open this district in the water lookupCompare with your own test results, see the district map and get matched filters.
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)highest running annual average · range ND to 7.93 · listed as a violation in the report · Wells · 2025 report, page 4 | 4.15 pCi/L | 0 pCi/L | 15 pCi/L | Above the health goalThe health goal is zero |
| Ironhighest measured · range ND to 0.72 · listed as a violation in the report · Wells · 2025 report, page 5 | 0.72 ppm | — | 0.3 ppm guideline | Above the guideline2.4x the guideline (taste, odor or stains; not a health limit) |
| Manganesehighest measured · range ND to 0.6 · listed as a violation in the report · Wells · 2025 report, page 5 | 0.6 ppm | — | 0.05 ppm guideline | Above the guideline12x the guideline (taste, odor or stains; not a health limit) |
| PFOA (a PFAS)highest running annual average · range ND to 9 · listed as a violation in the report · Wells · 2025 report, page 4 | 7.6 ppt | 0.007 ppt | 14 ppt (New Jersey) now; 4 ppt from 2029 | Above the federal limit that takes effect in 20291.9x the 4 ppt federal limit that takes effect in 2029; below the 14 ppt New Jersey limitNot a violation yet: EPA's 4 ppt limit is final, but water systems don't have to meet it until 2029. |
| PFOS (a PFAS)highest running annual average · range ND to 3.8 · listed as a violation in the report · Wells · 2025 report, page 4 | 3.24 ppt | 1 ppt | 13 ppt (New Jersey) now; 4 ppt from 2029 | Above the health goal3.2x the health goal |
| Radium (combined 226 + 228)highest running annual average · range ND to 4.16 · listed as a violation in the report · Wells · 2025 report, page 4 | 1.12 pCi/L | 0 pCi/L | 5 pCi/L | Above the health goalThe health goal is zero |
| Bariumhighest measured · range 0.02 to 0.1 · listed as a violation in the report · Wells · 2025 report, page 4 | 0.1 ppm | 2 ppm | 2 ppm | Below the health goal |
| Berylliumhighest measured · range ND to 0.19 · listed as a violation in the report · Wells · 2025 report, page 4 | 0.19 ppb | 1 ppb | 4 ppb | Below the health goal |
| Chlorineaverage · range 0.07 to 0.99 · listed as a violation in the report · Distribution system · 2025 report, page 4 | 0.48 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 · sampled 2023 · Customer taps · 2025 report, page 4 | 0.2 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (HAA5)highest running annual average · listed as a violation in the report · Distribution system · 2025 report, page 4 | Not detected | None set | 60 ppb | Not detected |
| Disinfection byproducts (TTHM)highest running annual average · range 0.48 to 11 · listed as a violation in the report · Distribution system · 2025 report, page 4 | 5.08 ppb | None set | 80 ppb | Below the legal limit |
| Lead90th percentile of homes tested, 0 over the action level · listed as a violation in the report · sampled 2023 · Customer taps · 2025 report, page 4 | Not detected | 0.2 ppb | 15 ppb (action level) | Not detected |
| Nitrate (as N)highest measured · range ND to 4.3 · listed as a violation in the report · Wells · 2025 report, page 4 | 4.3 ppm | 10 ppm | 10 ppm | Below the health goal |
| PFNA (a PFAS)highest running annual average · range ND to 2.7 · listed as a violation in the report · Wells · 2025 report, page 4 | 2.06 ppt | None set | 13 ppt (New Jersey) now; 10 ppt from 2029 | Below the legal limit |
| Total dissolved solidshighest measured · range 100 to 290 · listed as a violation in the report · Wells · 2025 report, page 5 | 290 ppm | — | 500 ppm guideline | Within the guideline |
| PFBS (a PFAS)highest running annual average · range ND to 12 · listed as a violation in the report · Wells · 2025 report, page 4 | 8.33 ppt | None set | None | No health limit |
| Sodiumhighest measured · range 13 to 93 · listed as a violation in the report · Wells · 2025 report, page 5 | 93 ppm | None set | None | No health limit |
Utility results describe the whole system, measured where water enters the pipes, not your tap. Your home’s plumbing can add lead or copper. 1 number we weren’t sure about is held back until a person checks.
EPA testing for PFAS and lithium
EPA’s own nationwide testing (UCMR 5) found these in Washington Township Mua’s water between Mar 2025 and Sep 2025. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.
- PFOA9 pptFound in 5 of 22 samples · highest resultAbove the federal limit that takes effect in 2029 (4 ppt)
- PFBS10.9 pptFound in 3 of 22 samples · highest resultNo federal limit in force for this one
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.
Sediment or cloudy water
Found: Iron, Manganese
What removes it: Oxidation filter.
PFAS ("forever chemicals")
Found: PFOA (a PFAS), PFOS (a PFAS), PFOA (EPA testing)
What removes it: Reverse osmosis.
More districts: New Jersey water quality · All states · Something look wrong? Tell us