Is Crested Butte, CO tap water safe?
The short answer
1 of the 8 utilities serving Crested Butte has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Colorado’s records: Buckhorn Ranch WS.
Town of Crested Butte, which serves the most people here, has 1 result above the limit’s level with no violation recorded and 2 results above the health goal. The worst: Haloacetic acids (HAA5) at 65.8 ppb, above the limit’s level, no violation. Health goals are stricter than legal limits and are not enforced.
A town can be served by more than one utility, and some homes are on private wells. The name on your water bill tells you which is yours, and your ZIP code narrows it down. They are listed by how many people each serves in Crested Butte’s ZIP codes, from EPA’s estimates.
- Open report
Town of Crested Butte
Colorado · serves 2,440 people · under 100 in Crested Butte
1 result above the limit’s level with no violation recorded and 2 results above the health goal. The worst: Haloacetic acids (HAA5) at 65.8 ppb, above the limit’s level, no violation.
No health-based violations since 2016
- Open report
Crested Butte South
Colorado · serves 2,000 people · under 100 in Crested Butte
1 result above the health goal. The worst: Uranium at 1.3 ppb, above the health goal.
No health-based violations since 2016
- Open report
River Green Poa
Colorado · serves 47 people · lists Crested Butte among the places it serves
1 result above the health goal. The worst: Lead at 1.5 ppb, above the health goal.
No health-based violations since 2016
- Open report
Riverland Lot Owners Assoc
Colorado · serves 368 people · based in Crested Butte
2 results above the health goal. The worst: Arsenic at 3.0 ppb, above the health goal.
No health-based violations since 2016
- Open report
Skyland MD
Colorado · serves 335 people · based in Crested Butte
2 results above the health goal. The worst: Lead at 2.0 ppb, above the health goal.
No health-based violations since 2016
- Open report
Buckhorn Ranch WS
Colorado · serves 205 people · based in Crested Butte
1 result above the health goal. The worst: Lead at 0.5 ppb, above the health goal.
2 health-based violations since 2016
- Open report
Larkspur Subd
Colorado · serves 118 people · based in Crested Butte
1 result above the health goal. The worst: Uranium at 2.4 ppb, above the health goal.
No health-based violations since 2016
- Open report
Saddle Ridge Ranch Estates WC
Colorado · serves 55 people · based in Crested Butte
2 results above the health goal. The worst: Lead at 1.0 ppb, above the health goal.
No health-based violations since 2016
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in Town of Crested Butte’s water, which serves the most people here. Another utility’s report names what handles its own results.
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Aquasana SmartFlow Reverse Osmosis (AQ-SFRO2)
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: Lead, Arsenic
Brondell Capella RC250 Reverse Osmosis System
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: Lead, Arsenic
Water testing near Crested Butte
The lab Colorado certifies closest to Crested Butte, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Eagle River W / S District
Avon, CO · about 54 miles
Certified for bacteria, lead and copper, metals, radioactivity
ZIP codes in Crested Butte
Which ZIP codes are in Crested Butte: Census 2020 relationship files. Which utilities serve them, and how many people: EPA SDWIS and EPA’s service area map. Each utility’s results: EPA UCMR 5, EPA SDWIS, and EPA’s and the state’s compliance monitoring, as its report lists them. How they are measured: methodology. Certified labs: CDPHE certified drinking water laboratories; distances from the Census 2020 ZIP code tabulation area gazetteer.
Near Crested Butte
Towns nearby with a page of their own.
What to do next
- Read Town of Crested Butte’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- About Haloacetic acids (HAA5)What it does to health, where it comes from, and the certification claim that addresses it.About Haloacetic acids (HAA5)
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water