We read 16 results from Fitchburg Utility Dist 1’s 2025 water quality report. No results over a legal limit; 4 above a health goal or guideline.
Serves about 24,500 people · Water system ID WI1130231 · 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)highest measured · sampled 2023 · Wells · 2025 report, page 4 | 2.9 pCi/L | 0 pCi/L | 15 pCi/L | Above the health goalThe health goal is zero |
| Lead90th percentile of 30 homes tested, 0 over the action level · sampled 2023 · Customer taps · 2025 report, page 4 | 2.3 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal11x the health goal |
| PFOA (a PFAS)highest measured · range ND to 0.3 · sampled 2023 · Wells · 2025 report, page 5 | 0.3 ppt | 0.007 ppt | 70 ppt (Wisconsin) now; 4 ppt from 2029 | Above the health goal43x the health goal |
| Radium (combined 226 + 228)highest measured · sampled 2023 · Wells · 2025 report, page 4 | 3.8 pCi/L | 0 pCi/L | 5 pCi/L | Above the health goalThe health goal is zero |
| Bariumhighest measured · range 0.01 to 0.02 · sampled 2023 · Wells · 2025 report, page 4 | 0.02 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chloridehighest measured · range 2.2 to 3.9 · sampled 2023 · Wells · 2025 report, page 5 | 3.9 ppm | — | 250 ppm guideline | Within the guideline |
| Chromium (total)highest measured · range ND to 4 · sampled 2023 · Wells · 2025 report, page 4 | 4 ppb | None set | 100 ppb | Below the legal limit |
| Disinfection byproducts (HAA5)highest measured · Distribution system · 2025 report, page 4 | 4 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest measured · Distribution system · 2025 report, page 4 | 9.9 ppb | None set | 80 ppb | Below the legal limit |
| Fluoridehighest measured · range 0.1 to 0.5 · sampled 2023 · Wells · 2025 report, page 4 | 0.5 ppm | 1 ppm | 4 ppm | Below the health goal |
| Nitrate (as N)highest measured · range ND to 0.15 · Wells · 2025 report, page 4 | 0.15 ppm | 10 ppm | 10 ppm | Below the health goal |
| Sulfatehighest measured · range 13 to 16 · sampled 2023 · Wells · 2025 report, page 5 | 16 ppm | — | 250 ppm guideline | Within the guideline |
| Trichloroethylene (TCE)highest measured · Wells · 2025 report, page 4 | 0.8 ppb | 1.7 ppb | 5 ppb | Below the health goal |
| Uraniumhighest measured · sampled 2023 · Wells · 2025 report, page 4 | 0.5 ppb | 0.6 ppb | 30 ppb | Below the health goal |
| Nickelhighest measured · range ND to 11 · sampled 2023 · Wells · 2025 report, page 4 | 11 ppb | None set | None | No health limit |
| Sodiumhighest measured · range 2.6 to 4.3 · sampled 2023 · Wells · 2025 report, page 4 | 4.3 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.
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)
What removes it: Reverse osmosis.
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