Skip to content
TapBuff
ZIP

Stucker Mesa Domestic WC

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
36 people
Connections
14
Water source
Groundwater influenced by surface water
Based in
Hotchkiss, CO
County
Delta
Owner
Private
The ZIP code it serves

81419

The short answer

1 result is above the limit’s level with no violation recorded, and 2 more are above the health goal. The worst: Total trihalomethanes (TTHM), above the limit’s level, no violation. 10 health-based violations since 2016.

What handles it

What was found

Lead and copper: EPA SDWIS monitoring periods ending 2021 to 2025.

Copper: EPA’s file records a utility’s copper only when it exceeds the action level. The last here was 1.9 ppm, for the period ending June 30, 2017. None since is on file, so it is not counted as a current finding.

Total trihalomethanes (TTHM), uranium, haloacetic acids (HAA5), fluoride, nitrate, chromium (total) and arsenic: Colorado’s own results, samples taken from Aug. 10, 2020 to Aug. 10, 2026, with EPA’s 2012 to 2019 file for earlier years.

Above the limit’s level, no violation recorded1

Total trihalomethanes (TTHM)

Forms or is added in treatment

Above the limit’s level, no violation

89ppb

Highest yearly average, 2020 to 2026

2026 average: 7.7 ppb

Averaged by year, the highest was 89 ppb, in 2025, above EPA’s legal limit of 80 ppb. Its highest single sample was 135 ppb. In 2026, the latest year on file, its three samples averaged 7.7 ppb. EPA judges this limit on running averages at each sampling point, and recorded no violation for total trihalomethanes (TTHM) at this utility since 2020. Results like these with no violation often include water sampled before treatment or blending; the utility’s annual report says what reaches the tap. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 80.4 ppb, in 2018.

What handles it

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

Above the health goal2

Uranium

Comes from the source

Above the health goal

7.8ppb

Highest yearly average, 2025

Averaged by year, the highest was 7.8 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 3.8 ppb, in 2013.

What handles it

Lead

Comes from pipes, often your own

Above the health goal

0.5ppb

90th percentile, 2025

In the latest period, 9 in 10 homes sampled were at or below 0.5 ppb, below EPA’s action level of 15 ppb. The action level drops to 10 ppb on Nov. 1, 2027. EPA’s health goal for lead is zero.

What handles it

Below EPA’s limits4

Haloacetic acids (HAA5)

Forms or is added in treatment

Below EPA’s limits

46.4ppb

Highest yearly average, 2020 to 2026

2026 average: 7.8 ppb

Averaged by year, the highest was 46.4 ppb, in 2021, below EPA’s legal limit of 60 ppb. Its highest single sample was 58.3 ppb. In 2026, the latest year on file, its three samples averaged 7.8 ppb. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 24.1 ppb, in 2019.

What handles it

No certification claim covers this compound yet.

Fluoride

Forms or is added in treatment

Below EPA’s limits

0.17ppm

Highest yearly average, 2021 to 2023

Averaged by year, the highest was 0.17 ppm, in 2023, below EPA’s legal limit of 4.0 ppm. That was also the latest year on file. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 0.28 ppm, in 2017.

What handles it

Nitrate

Comes from the source

Below EPA’s limits

0.39ppm

Highest sample; found in 3 of 6

2026: not found

The highest sample, in 2024, was 0.39 ppm, below EPA’s legal limit of 10 ppm. In 2026, the latest year on file, it wasn’t found in its one sample. Earlier, from 2012 to 2019, EPA’s file shows a highest sample of 0.3 ppm, in 2012.

What handles it

  • NSF/ANSI 58 look for “Nitrate/Nitrite Reduction”
  • NSF/ANSI 53 look for “Nitrate/Nitrite (30 ppm challenge)”

Chromium (total)

Comes from the source

Below EPA’s limits

3.0ppb

Highest yearly average, 2021 to 2023

2023, one sample: 3.0 ppb

Averaged by year, the highest was 3.0 ppb, in 2022, below EPA’s legal limit of 100 ppb. In 2023, the latest year on file, its one sample was 3.0 ppb. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 1.0 ppb, in 2019.

What handles it

One compound tested and not foundBelow the reporting level in every sample. Not found is not the same as zero.
  • Arsenic

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

    Claims: Trihalomethanes (TTHM) Reduction, Lead Reduction

    For: Total trihalomethanes (TTHM), Lead

    Other certifiers’ wording: VOC Reduction

  • NSF/ANSI 58

    Claims: Trihalomethanes (TTHM) Reduction, Uranium, Lead Reduction

    For: Total trihalomethanes (TTHM), Uranium, Lead

At the tap, or for the whole house?

Lead and copper usually come from pipes and fixtures inside or near your home. A whole-house system sits where water enters, so it cannot catch what your own plumbing adds after it. For those, the filter that counts is the one at the tap. 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 water filters for lead, ranked

Violations since 2016

Contaminant or ruleTypePeriodMeasuredStatus
Interim Enhanced Surface Water Treatment RuleToo many readings in a month showed cloudiness above the filtration standard.EPA: Monthly Turbidity Exceed (Enhanced SWTR)April 1, 2023 to April 30, 2023—Resolved
Interim Enhanced Surface Water Treatment RuleToo many readings in a month showed cloudiness above the filtration standard.EPA: Monthly Turbidity Exceed (Enhanced SWTR)May 1, 2022 to May 31, 2022—Resolved
Interim Enhanced Surface Water Treatment RuleToo many readings in a month showed cloudiness above the filtration standard.EPA: Monthly Turbidity Exceed (Enhanced SWTR)April 1, 2022 to April 30, 2022—Resolved
Interim Enhanced Surface Water Treatment RuleToo many readings in a month showed cloudiness above the filtration standard.EPA: Monthly Turbidity Exceed (Enhanced SWTR)April 1, 2021 to April 30, 2021—Resolved
Surface Water Treatment RuleRequired treatment for surface water or groundwater was not met.EPA: Treatment Technique (SWTR and GWR)April 1, 2020 to April 30, 2020—Resolved
Interim Enhanced Surface Water Treatment RuleToo many readings in a month showed cloudiness above the filtration standard.EPA: Monthly Turbidity Exceed (Enhanced SWTR)April 1, 2020 to April 30, 2020—Resolved
Interim Enhanced Surface Water Treatment RuleToo many readings in a month showed cloudiness above the filtration standard.EPA: Monthly Turbidity Exceed (Enhanced SWTR)April 1, 2019 to April 30, 2019—Resolved
Interim Enhanced Surface Water Treatment RuleToo many readings in a month showed cloudiness above the filtration standard.EPA: Monthly Turbidity Exceed (Enhanced SWTR)March 1, 2019 to March 31, 2019—Resolved
Interim Enhanced Surface Water Treatment RuleToo many readings in a month showed cloudiness above the filtration standard.EPA: Monthly Turbidity Exceed (Enhanced SWTR)March 1, 2017 to March 31, 2017—Resolved
Surface Water Treatment RuleRequired treatment for surface water or groundwater was not met.EPA: Treatment Technique (SWTR and GWR)June 1, 2016 to June 30, 2016—Resolved
Health-based violations only. Resolved and archived mean the utility returned to compliance or the state closed the record. 56 monitoring or reporting violations not shown.

What this report can’t tell you

  • Everything else. Total trihalomethanes (TTHM), uranium, haloacetic acids (HAA5), fluoride, nitrate, chromium (total) and arsenic results here are Colorado’s own from 2020 on, with EPA’s national file for 2012 to 2019. Stucker Mesa Domestic WC’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 Aug. 10, 2020 to Aug. 10, 2026.

Testing your own tap

Stucker Mesa Domestic WC’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 lab Colorado certifies closest to the area Stucker Mesa Domestic WC 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 42 miles

    Certified for bacteria

All 54 certified labs for Colorado

Sources

PWSID CO0115726. Rebuilt from EPA data on Oct. 18, 2026.

Also in Delta County

All Colorado utilities

What to do next