We read 8 results from Aspen City of’s 2025 water quality report. No results over a legal limit; 1 above a health goal or guideline.
Serves about 31,100 people · Water system ID CO0149122 · 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 30 homes tested, 0 over the action level · listed as a violation in the report · sampled 2023 · Customer taps · 2025 report, page 6 | 1 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal5x the health goal |
| Bariumaverage · range 0.04 to 0.04 · listed as a violation in the report · sampled 2023 · Entry point · 2025 report, page 8 | 0.04 ppm | 2 ppm | 2 ppm | Below the health goal |
| Copper90th percentile of 30 homes tested, 0 over the action level · listed as a violation in the report · sampled 2023 · Customer taps · 2025 report, page 6 | 0.18 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| DEHP (a phthalate)average · range ND to 3.7 · listed as a violation in the report · Entry point · 2025 report, page 9 | 1.77 ppb | 12 ppb | 6 ppb | Below the health goal |
| Disinfection byproducts (HAA5)average · range 3 to 14.9 · listed as a violation in the report · Distribution system · 2025 report, page 7 | 8.66 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)average · range 6.03 to 19.3 · listed as a violation in the report · Distribution system · 2025 report, page 7 | 11.4 ppb | None set | 80 ppb | Below the legal limit |
| Fluorideaverage · range 0.63 to 0.63 · listed as a violation in the report · sampled 2023 · Entry point · 2025 report, page 8 | 0.63 ppm | 1 ppm | 4 ppm | Below the health goal |
| Turbidity (cloudiness)highest measured · listed as a violation in the report · Entry point · 2025 report, page 8 | 0.17 NTU | None set | 1 NTU | Below the legal 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.
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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