We read 13 results from North Shore Water Commission’s 2024 water quality report. No results over a legal limit; 3 above a health goal or guideline.
Serves about 35,598 people · Water system ID WI2413515 · Read the district’s 2024 report (opens in a new tab)
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Results from the 2024 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 |
|---|---|---|---|---|
| Arsenicsingle sample · listed as a violation in the report · Treatment plant · 2024 report, page 8 | 1.1 ppb | 0.004 ppb | 10 ppb | Above the health goal275x the health goal |
| PFOA (a PFAS)highest measured · range 2 to 2 · sampled 2023 · Treatment plant · 2024 report, page 10 | 2 ppt | 0.007 ppt | 70 ppt (Wisconsin) now; 4 ppt from 2029 | Above the health goal286x the health goal |
| PFOS (a PFAS)highest measured · range 2 to 2.1 · sampled 2023 · Treatment plant · 2024 report, page 10 | 2.1 ppt | 1 ppt | 70 ppt (Wisconsin) now; 4 ppt from 2029 | Above the health goal2.1x the health goal |
| Atrazinesingle sample · listed as a violation in the report · sampled 2023 · Treatment plant · 2024 report, page 9 | 0.02 ppb | 0.15 ppb | 3 ppb | Below the health goal |
| Bariumsingle sample · listed as a violation in the report · Treatment plant · 2024 report, page 8 | 0.02 ppm | 2 ppm | 2 ppm | Below the health goal |
| Fluorideaverage · range 0.76 to 0.88 · listed as a violation in the report · Treatment plant · 2024 report, page 9 | 0.79 ppm | 1 ppm | 4 ppm | Below the health goal |
| Nitrate (as N)single sample · listed as a violation in the report · Treatment plant · 2024 report, page 9 | 0.34 ppm | 10 ppm | 10 ppm | Below the health goal |
| PFHxS (a PFAS)highest measured · range 0.62 to 0.72 · sampled 2023 · Treatment plant · 2024 report, page 10 | 0.72 ppt | None set | 10 ppt from 2029 | Below the legal limit |
| Sulfatesingle sample · Treatment plant · 2024 report, page 9 | 24 ppm | — | 250 ppm guideline | Within the guideline |
| PFBS (a PFAS)highest measured · range 0.34 to 0.37 · sampled 2023 · Treatment plant · 2024 report, page 10 | 0.37 ppt | None set | None | No health limit |
| PFHpA (a PFAS)highest measured · range 0.96 to 1.1 · sampled 2023 · Treatment plant · 2024 report, page 10 | 1.1 ppt | None set | None | No health limit |
| PFHxA (a PFAS)highest measured · range 1.2 to 1.5 · sampled 2023 · Treatment plant · 2024 report, page 10 | 1.5 ppt | None set | None | No health limit |
| Sodiumsingle sample · listed as a violation in the report · Treatment plant · 2024 report, page 9 | 10 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.
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.
PFAS ("forever chemicals")
Found: PFOA (a PFAS), PFOS (a PFAS)
What removes it: Reverse osmosis.
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