We read 11 results from Mhog Sewer & Water Authority’s 2025 water quality report. No results over a legal limit; 1 above a health goal or guideline.
Serves about 17,046 people · Water system ID MI0004098 · 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 |
|---|---|---|---|---|
| Lead90th percentile of homes tested, 0 over the action level · sampled 2024 · 2025 report, page 2 | 1 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal5x the health goal |
| Bariumas reported · sampled 2022 · 2025 report, page 2 | 0.01 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chlorideas reported · 2025 report, page 2 | 32 ppm | — | 250 ppm guideline | Within the guideline |
| Chlorinehighest running annual average · range 0.41 to 1.23 · 2025 report, page 2 | 0.72 ppm | None set | 4 ppm | Below the legal limit |
| Copper90th percentile of homes tested, 0 over the action level · sampled 2024 · 2025 report, page 2 | 0.2 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (HAA5)highest running annual average · range 2 to 5 · 2025 report, page 2 | 5 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest running annual average · range 44 to 62 · 2025 report, page 2 | 62 ppb | None set | 80 ppb | Below the legal limit |
| Fluorideaverage · 2025 report, page 2 | 0.54 ppm | 1 ppm | 4 ppm | Below the health goal |
| Ironaverage · range ND to 0.05 · 2025 report, page 2 | 0.01 ppm | — | 0.3 ppm guideline | Within the guideline |
| Hardnessaverage · range 4.33 to 9.12 · 2025 report, page 2 | 5.5 gpg (94 ppm) | — | — | Moderately hard |
| Sodiumas reported · 2025 report, page 2 | 37 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.
EPA testing for PFAS and lithium
EPA’s own nationwide testing (UCMR 5) found these in Mhog Sewer & Water Authority’s water between Dec 2023 and Jun 2024. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.
- Lithium10.9 ppbFound in 2 of 2 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.
Lead
Found: Lead
What removes it: Certified carbon block or RO.
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