We read 13 results from City of San Angelo’s 2025 water quality report. No results over a legal limit; 3 above a health goal or guideline.
Serves about 101,004 people · Water system ID TX2260001 · 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 beta (radioactivity)highest measured · sampled 2022 · Treated water · 2025 report, page 5 | 11.8 pCi/L | 0 pCi/L | 50 pCi/L | Above the health goalThe health goal is zero |
| Lead90th percentile of homes tested, 2 over the action level · sampled 2024 · Customer taps · 2025 report, page 4 | 3.95 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal20x the health goal |
| Uraniumhighest measured · sampled 2022 · Treated water · 2025 report, page 5 | 2.9 ppb | 0.6 ppb | 30 ppb | Above the health goal4.8x the health goal |
| Bariumhighest measured · Treated water · 2025 report, page 5 | 0.11 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chloramineaverage · range 0.52 to 5.8 · Distribution system · 2025 report, page 6 | 3 ppm | None set | 4 ppm | Below the legal limit |
| Copper90th percentile of homes tested, 0 over the action level · sampled 2024 · Customer taps · 2025 report, page 4 | 0.13 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Cyanidehighest measured · Treated water · 2025 report, page 5 | 65.1 ppb | 150 ppb | 200 ppb | Below the health goal |
| Disinfection byproducts (HAA5)highest running annual average · range 16 to 26 · Distribution system · 2025 report, page 4 | 21 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest running annual average · range 65 to 77 · Distribution system · 2025 report, page 4 | 71 ppb | None set | 80 ppb | Below the legal limit |
| Fluoridehighest measured · Treated water · 2025 report, page 5 | 0.8 ppm | 1 ppm | 4 ppm | Below the health goal |
| Nitrate (as N)highest measured · Treated water · 2025 report, page 5 | 0.47 ppm | 10 ppm | 10 ppm | Below the health goal |
| Turbidity (cloudiness)highest measured · Treatment plant · 2025 report, page 6 | 0.7 NTU | None set | 1 NTU | Below the legal limit |
| Dibromochloromethanehighest measured · range 7.42 to 19.6 · Treated water · 2025 report, page 5 | 19.6 ppb | 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 City of San Angelo’s water between Apr 2023 and Jan 2024. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.
- PFHxS9.7 pptFound in 4 of 4 samples · highest resultNo federal limit in force for this one
- PFBS8.4 pptFound in 4 of 4 samples · highest resultNo federal limit in force for this one
- Lithium50.1 ppbFound in 4 of 4 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 beta (radioactivity), Uranium
What removes it: Reverse osmosis.
Lead
Found: Lead
What removes it: Certified carbon block or RO.
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