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Town of Collbran

What EPA’s and Colorado’s records show in this utility’s water: nitrate, arsenic and other regulated chemicals; lead and copper; and violations since 2016, with the certification that handles each result.

Serves
678 people
Connections
226
Water source
Groundwater influenced by surface water
Based in
Collbran, CO
County
Mesa
Owner
Local government
The ZIP code it serves

81624

The short answer

2 results are above the health goal. The worst: Arsenic, above the health goal. No health-based violations on file since 2016.

What handles it

What was found

Copper: EPA’s file records a utility’s copper only when it exceeds the action level. The last here was 1.4 ppm, for the period ending Dec. 31, 1993. None since is on file, so it is not counted as a current finding.

Arsenic, uranium, total trihalomethanes (TTHM), haloacetic acids (HAA5), fluoride, nitrate and chromium (total): Colorado’s own results, samples taken from Jan. 17, 2020 to July 7, 2026, with EPA’s 2012 to 2019 file for earlier years.

Above the health goal2

Arsenic

Comes from the source

Above the health goal

2.7ppb

Highest yearly average, 2022 to 2023

Averaged by year, the highest was 2.7 ppb, in 2023: below EPA’s legal limit of 10 ppb, but above its health goal of zero. That was also the latest year on file. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 2.7 ppb, in 2019.

What handles it

  • NSF/ANSI 58 look for “Arsenic (Pentavalent)<=50 ppb Reduction”
  • NSF/ANSI 53 look for “Arsenic (Pentavalent)<=50 ppb Reduction”

Uranium

Comes from the source

Above the health goal

7.0ppb

Highest yearly average, 2025

Averaged by year, the highest was 7.0 ppb, in 2025: below EPA’s legal limit of 30 ppb, but above its health goal of zero. That is the only year on file. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 8.9 ppb, in 2019.

What handles it

Below EPA’s limits4

Total trihalomethanes (TTHM)

Forms or is added in treatment

Below EPA’s limits

21.6ppb

Highest yearly average, 2020 to 2026

2026 average: 20.1 ppb

Averaged by year, the highest was 21.6 ppb, in 2025, below EPA’s legal limit of 80 ppb. Its highest single sample was 31.4 ppb. In 2026, the latest year on file, its three samples averaged 20.1 ppb. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 25.7 ppb, in 2019.

What handles it

  • NSF/ANSI 53 look for “Trihalomethanes (TTHM) Reduction”
  • NSF/ANSI 58 look for “Trihalomethanes (TTHM) Reduction”

Haloacetic acids (HAA5)

Forms or is added in treatment

Below EPA’s limits

13.3ppb

Highest yearly average, 2020 to 2026

2026 average: 10.7 ppb

Averaged by year, the highest was 13.3 ppb, in 2023, below EPA’s legal limit of 60 ppb. Its highest single sample was 24.4 ppb. In 2026, the latest year on file, its three samples averaged 10.7 ppb. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 12.7 ppb, in 2017.

What handles it

No certification claim covers this compound yet.

Fluoride

Forms or is added in treatment

Below EPA’s limits

0.58ppm

Highest yearly average, 2021

Averaged by year, the highest was 0.58 ppm, in 2021, below EPA’s legal limit of 4.0 ppm. That is the only year on file. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 0.65 ppm, in 2019.

What handles it

Nitrate

Comes from the source

Below EPA’s limits

0.99ppm

Highest sample; found in 7 of 7

2025, one sample: 0.9 ppm

The highest sample, in 2020, was 0.99 ppm, below EPA’s legal limit of 10 ppm. In 2025, the latest year on file, its one sample was 0.9 ppm. Earlier, from 2012 to 2019, EPA’s file shows a highest sample of 0.9 ppm, in 2019.

What handles it

  • NSF/ANSI 58 look for “Nitrate/Nitrite Reduction”
  • NSF/ANSI 53 look for “Nitrate/Nitrite (30 ppm challenge)”
2 compounds tested and not foundBelow the reporting level in every sample. Not found is not the same as zero.
  • Chromium (total)
  • Lead

What handles it

A certification covers specific claims, not a whole standard. Look for these claims on the certifier’s listing, not the box. Wording varies a little: NSF writes “Lead Reduction,” WQA just “Lead.”

  • NSF/ANSI 53

    Claim: Arsenic (Pentavalent)<=50 ppb Reduction

    For: Arsenic

    Other certifiers’ wording: Arsenic (III) (50 ppb influent level)

  • NSF/ANSI 58

    Claims: Arsenic (Pentavalent)<=50 ppb Reduction, Uranium

    For: Arsenic, Uranium

    Other certifiers’ wording: Arsenic (Pentavalent)<=300 ppb Reduction; Arsenic (V) (300 ppb influent level)

At the tap, or for the whole house?

These come with the water itself, so a whole-house system certified for the same claims treats every tap and shower. A filter at the tap treats drinking water for much less. How whole-house systems compare.

Filters with those claims on a certifier’s listing

Disclosure: TapBuff earns a commission if you buy through some links on this page. It does not change which standard or filter we name. As an Amazon Associate, TapBuff earns from qualifying purchases. How TapBuff makes money

Compare five-year costs

The best reverse osmosis systems, ranked

Violations since 2016

No health-based violations on file with EPA since 2016. There are 4 monitoring or reporting violations: a sample missed, late or not reported.

What this report can’t tell you

  • Everything else. Arsenic, uranium, total trihalomethanes (TTHM), haloacetic acids (HAA5), fluoride, nitrate and chromium (total) results here are Colorado’s own from 2020 on, with EPA’s national file for 2012 to 2019. Town of Collbran’s own annual report, which it must send you every year, has the contaminants this page does not show.

  • Your own plumbing. Lead results are the 90th percentile across homes the utility samples. Your home’s service line, solder and fixtures decide yours. A certified lab test is the only way to know.

  • What it means for your health. This page reports what the records show and EPA’s limits and goals; it is not medical advice. If you are worried about a health effect, talk to a doctor or your local health department.

  • Anything after the latest data. SDWIS data is from 2026 Q3; UCMR 5 didn’t sample this utility; Colorado’s results run from Jan. 17, 2020 to July 7, 2026.

Testing your own tap

Town of Collbran’s results are for the water it sends out. What your own service line, solder and fixtures add shows up only in a test of your tap, by a lab Colorado certifies.

The 2 labs Colorado certifies closest to the area Town of Collbran serves, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.

  • Mesa County Public Health Regional Laboratory

    Grand Junction, CO · about 40 miles

    Certified for bacteria

  • Eagle River W / S District

    Avon, CO · about 72 miles

    Certified for bacteria, lead and copper, metals, radioactivity

All 54 certified labs for Colorado

Sources

PWSID CO0139185. Rebuilt from EPA data on Oct. 18, 2026.

Also in Mesa County

All Colorado utilities

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