We read 10 results from Magna Water District’s 2025 water quality report. No results over a legal limit; 6 above a health goal or guideline.
Serves about 32,100 people · Water system ID UTAH18014 · 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 |
|---|---|---|---|---|
| Arsenicaverage · range 6.2 to 7.8 · listed as a violation in the report · Entry points · 2025 report, page 6 | 6.5 ppb | 0.004 ppb | 10 ppb | Above the health goal1,625x the health goal |
| Gross alpha (radioactivity)single sample · listed as a violation in the report · sampled 2023 · Entry points · 2025 report, page 7 | 3.4 pCi/L | 0 pCi/L | 15 pCi/L | Above the health goalThe health goal is zero |
| Perchlorateaverage · range 1.9 to 3.5 · listed as a violation in the report · Entry points · 2025 report, page 8 | 2.5 ppb | 1 ppb | 6 ppb | Above the health goal2.5x the health goal |
| PFOS (a PFAS)average · listed as a violation in the report · Entry points · 2025 report, page 9 | 1.5 ppt | 1 ppt | 4 ppt from 2029 | Above the health goal1.5x the health goal |
| Radium (combined 226 + 228)single sample · listed as a violation in the report · sampled 2023 · Entry points · 2025 report, page 7 | 0.37 pCi/L | 0 pCi/L | 5 pCi/L | Above the health goalThe health goal is zero |
| Total dissolved solidsaverage · range 700 to 800 · listed as a violation in the report · Entry points · 2025 report, page 8 | 727 ppm | — | 500 ppm guideline | Above the guideline1.5x the guideline (taste, odor or stains; not a health limit) |
| Disinfection byproducts (HAA5)average · range 9.14 to 21 · listed as a violation in the report · Distribution system · 2025 report, page 6 | 14.5 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)average · range 22.3 to 45.6 · listed as a violation in the report · Distribution system · 2025 report, page 6 | 32.3 ppb | None set | 80 ppb | Below the legal limit |
| Nitrate (as N)single sample · listed as a violation in the report · Entry points · 2025 report, page 6 | 2.3 ppm | 10 ppm | 10 ppm | Below the health goal |
| Hardnessaverage · Entry points · 2025 report, page 8 | 5.66 gpg (96.8 ppm) | — | — | Moderately hard |
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 Magna Water District’s water between Jan 2024 and Oct 2024. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.
- Lithium258 ppbFound in 6 of 6 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.
Industrial chemicals and pesticides
Found: Perchlorate
What removes it: Carbon block or RO.
PFAS ("forever chemicals")
Found: PFOS (a PFAS)
What removes it: Reverse osmosis.
Salty taste / high TDS
Found: Total dissolved solids
What removes it: Reverse osmosis.
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