Rogers Mesa 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: 840 people
Connections: 383
Water source: Surface water bought from another system
Based in: Hotchkiss, CO
County: Delta
Owner: Private

The ZIP code it serves

81419

The short answer

Nothing in EPA’s and Colorado’s records for this utility is above a health goal. That covers nitrate, arsenic and other regulated chemicals, plus lead and copper, not everything. 1 health-based violation since 2016.

What was found

Copper: EPA’s file records a utility’s copper only when it exceeds the action level. The last here was 1.6 ppm, for the period ending June 30, 2007. None since is on file, so it is not counted as a current finding.

Haloacetic acids (HAA5) and total trihalomethanes (TTHM): Colorado’s own results, samples taken from Jan. 22, 2020 to July 7, 2026, with EPA’s 2012 to 2019 file for earlier years.

Below EPA’s limits2

Haloacetic acids (HAA5)

Forms or is added in treatment

Below EPA’s limits

42.6ppb

Highest yearly average, 2020 to 2026

Averaged by year, the highest was 42.6 ppb, in 2026, below EPA’s legal limit of 60 ppb. Its highest single sample was 65.9 ppb. That was also the latest year on file. EPA recorded no violation for haloacetic acids (HAA5) at this utility since 2020. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 42.7 ppb, in 2015.

What handles it

No certification claim covers this compound yet.

Total trihalomethanes (TTHM)

Forms or is added in treatment

Below EPA’s limits

55.5ppb

Highest yearly average, 2020 to 2026

2026 average: 46.7 ppb

Averaged by year, the highest was 55.5 ppb, in 2022, below EPA’s legal limit of 80 ppb. Its highest single sample was 101 ppb. In 2026, the latest year on file, its three samples averaged 46.7 ppb. EPA recorded no violation for total trihalomethanes (TTHM) at this utility since 2020. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 57.3 ppb, in 2018.

What handles it

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

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

Lead

Violations since 2016

Contaminant or rule	Type	Period	Measured	Status
Revised Total Coliform Rule	E. coli was confirmed in the water system.EPA: Maximum Contaminant Level Violation, E. coli (RTCR)	July 1, 2025 to July 31, 2025	—	Resolved
Health-based violations only. Resolved and archived mean the utility returned to compliance or the state closed the record. 19 monitoring or reporting violations not shown.

What this report can’t tell you

Everything else. Haloacetic acids (HAA5) and total trihalomethanes (TTHM) results here are Colorado’s own from 2020 on, with EPA’s national file for 2012 to 2019. Rogers Mesa 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 Jan. 22, 2020 to July 7, 2026.

Testing your own tap

Rogers Mesa 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 Rogers Mesa WC serves, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.