We read 11 results from City of Laramie’s 2025 water quality report. No results over a legal limit; 6 above a health goal or guideline.
Serves about 32,395 people · Water system ID WY5600029 · 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 |
|---|---|---|---|---|
| Bromatehighest measured · range 3.6 to 3.6 · listed as a violation in the report · Treated water · 2025 report, page 7 | 3.6 ppb | 0.1 ppb | 10 ppb | Above the health goal36x the health goal |
| Copper90th percentile of homes tested, 0 over the action level · listed as a violation in the report · sampled 2024 · Customer taps · 2025 report, page 7 | 0.45 ppm | 0.3 ppm | 1.3 ppm (action level) | Above the health goal1.5x the health goal |
| Gross alpha (radioactivity)highest measured · range 2.7 to 6.1 · listed as a violation in the report · sampled 2020 · Treated water · 2025 report, page 7 | 6.1 pCi/L | 0 pCi/L | 15 pCi/L | Above the health goalThe health goal is zero |
| Lead90th percentile of homes tested, 0 over the action level · listed as a violation in the report · sampled 2024 · Customer taps · 2025 report, page 8 | 5 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal25x the health goal |
| Radium (combined 226 + 228)highest measured · listed as a violation in the report · sampled 2020 · Treated water · 2025 report, page 7 | 1.7 pCi/L | 0 pCi/L | 5 pCi/L | Above the health goalThe health goal is zero |
| Uraniumhighest measured · listed as a violation in the report · sampled 2020 · Treated water · 2025 report, page 7 | 1.3 ppb | 0.6 ppb | 30 ppb | Above the health goal2.2x the health goal |
| Chlorinehighest running annual average · range 0.16 to 1.21 · listed as a violation in the report · Distribution system · 2025 report, page 7 | 0.75 ppm | None set | 4 ppm | Below the legal limit |
| Disinfection byproducts (HAA5)highest running annual average · range 0.89 to 14 · listed as a violation in the report · Distribution system · 2025 report, page 7 | 14 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest running annual average · range 6.1 to 31 · listed as a violation in the report · Distribution system · 2025 report, page 7 | 31 ppb | None set | 80 ppb | Below the legal limit |
| Fluorideaverage · range 0.21 to 0.67 · listed as a violation in the report · Treated water · 2025 report, page 7 | 0.39 ppm | 1 ppm | 4 ppm | Below the health goal |
| Nitrate (as N)highest measured · listed as a violation in the report · Treated water · 2025 report, page 7 | 1.94 ppm | 10 ppm | 10 ppm | Below the health goal |
Utility results describe the whole system, measured where water enters the pipes, not your tap. Your home’s plumbing can add lead or copper.
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: Copper, Lead
What removes it: Reverse osmosis or Certified carbon block or RO.
Radium and uranium
Found: Gross alpha (radioactivity), Radium (combined 226 + 228), Uranium
What removes it: Reverse osmosis.
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