We read 15 results from Provo City’s 2025 water quality report. No results over a legal limit; 4 above a health goal or guideline.
Serves about 116,288 people · Water system ID UTAH25006 · 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 |
|---|---|---|---|---|
| Arsenichighest measured · range ND to 0.8 · Provo sources · 2025 report, page 2 | 0.8 ppb | 0.004 ppb | 10 ppb | Above the health goal200x the health goal |
| Gross alpha (radioactivity)highest measured · DACRWTP, highest of 2 sources · 2025 report, page 2 | 4.4 pCi/L | 0 pCi/L | 15 pCi/L | Above the health goalThe health goal is zero |
| Lead90th percentile of homes tested, 2 over the action level · Customer taps · 2025 report, page 2 | 4.3 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal21x the health goal |
| Radium-228highest measured · DACRWTP, highest of 2 sources · 2025 report, page 2 | 0.62 pCi/L | 0.02 pCi/L | 5 pCi/L | Above the health goal33x the health goal |
| Bariumhighest measured · range 0.05 to 0.1 · Provo sources · 2025 report, page 2 | 0.1 ppm | 2 ppm | 2 ppm | Below the health goal |
| Copper90th percentile of homes tested, 0 over the action level · Customer taps · 2025 report, page 2 | 0.16 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (HAA5)highest measured · DACRWTP, highest of 2 sources · 2025 report, page 2 | 34.1 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest measured · DACRWTP, highest of 2 sources · 2025 report, page 2 | 54.1 ppb | None set | 80 ppb | Below the legal limit |
| E. colias reported · Distribution system · 2025 report, page 2 | Not detected | 0 positive samples | 0 positive samples | Not detected |
| Fluoridehighest measured · range ND to 0.1 · Provo sources · 2025 report, page 2 | 0.1 ppm | 1 ppm | 4 ppm | Below the health goal |
| Nitrate (as N)highest measured · range ND to 0.36 · Provo sources · 2025 report, page 2 | 0.36 ppm | 10 ppm | 10 ppm | Below the health goal |
| Seleniumhighest measured · range 1.3 to 1.4 · Provo sources · 2025 report, page 2 | 1.4 ppb | 30 ppb | 50 ppb | Below the health goal |
| Sulfatehighest measured · range 11.1 to 58.7 · Provo sources · 2025 report, page 2 | 58.7 ppm | — | 250 ppm guideline | Within the guideline |
| Total dissolved solidshighest measured · range 180 to 376 · Provo sources · 2025 report, page 2 | 376 ppm | — | 500 ppm guideline | Within the guideline |
| Sodiumhighest measured · range 4.23 to 15.3 · Provo sources · 2025 report, page 2 | 15.3 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. 8 numbers we weren’t sure about are held back until a person checks.
EPA testing for PFAS and lithium
EPA’s own nationwide testing (UCMR 5) found these in Provo City’s water between Jan 2023 and Oct 2023. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.
- Lithium27 ppbFound in 4 of 8 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-228
What removes it: Reverse osmosis.
Lead
Found: Lead
What removes it: Certified carbon block or RO.
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