Is Telluride, CO tap water safe?
The short answer
3 of the 5 utilities serving Telluride have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Colorado’s records: Town of Telluride, San Bernardo HOA and Last Dollar PUD.
Town of Telluride, which serves the most people here, has 1 result above the limit’s level with no violation recorded and 1 result above the health goal. The worst: Arsenic at 18 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 Telluride’s ZIP codes, from EPA’s estimates.
- Open report
Town of Telluride
Colorado · serves 7,900 people · under 100 in Telluride
1 result above the limit’s level with no violation recorded and 1 result above the health goal. The worst: Arsenic at 18 ppb, above the limit’s level, no violation.
10 health-based violations since 2016
- Open report
Aldasoro Ranch Hoc
Colorado · serves 412 people · under 100 in Telluride
2 results above the health goal. The worst: Lead at 4.2 ppb, above the health goal.
No health-based violations since 2016
- Open report
Wilson Mesa
Colorado · serves 290 people · based in Telluride
1 result above the health goal. The worst: Uranium at 0.28 ppb, above the health goal.
No health-based violations since 2016
- Open report
San Bernardo HOA
Colorado · serves 132 people · based in Telluride
1 result above the action level and 1 result above the health goal. The worst: Copper at 1.4 ppm, above the action level.
1 health-based violation since 2016
- Open report
Last Dollar PUD
Colorado · serves 96 people · based in Telluride
1 result above the legal limit and 2 results above the health goal. The worst: Arsenic at 5.9 ppb, above the legal limit.
1 health-based violation since 2016
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in Town of Telluride’s water, which serves the most people here. Another utility’s report names what handles its own results.
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Countertop reverse osmosis
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 4, 2026
Certified for: Arsenic, Lead
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: Arsenic, Lead
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: Arsenic, Lead
Water testing near Telluride
The lab Colorado certifies closest to Telluride, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
La Plata County Water Quality Laboratory
Durango, CO · about 54 miles
Certified for bacteria
ZIP codes in Telluride
Which ZIP codes are in Telluride: 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 Telluride
Towns nearby with a page of their own.
What to do next
- Read Town of Telluride’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Filters for ArsenicRanked by certification and what they cost over five years.The best reverse osmosis systems, ranked
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water