Is MESA WSD required to publish a Consumer Confidence Report?

Yes. MESA WSD is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is MESA WSD’s next Consumer Confidence Report due?

MESA WSD’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

MESA, CO · Mesa County

MESA WSD Water System

Consumer Confidence Report status

MESA WSD must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for MESA WSD.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Colorado’s official records. Always confirm current status with Colorado before making decisions based on this information.

System facts

System ID (PWSID): CO0139505
System type: Community Water System
Population served: 330
Service connections: 86
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

MESA WSD is one of 1,060 community water systems in Colorado in the 500 or fewer people size category, serving 330 people from surface water.

As of August 1, 2026, its federal record holds 10 entries between 1993 and 2016, all of which EPA lists as closed. Nothing has been added since 2016.

All 10 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Surface Water Treatment Rules, the Stage 2 Disinfectants and Disinfection Byproducts Rule, and the Lead and Copper Rule.

Violation history

Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2016 – December 31, 2016
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2015 – December 31, 2015
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
September 1, 2006 – September 30, 2006
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
November 1, 2003 – November 30, 2003
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2002 – August 26, 2008
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
June 1, 2001 – June 30, 2001
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
May 1, 2001 – May 31, 2001
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
April 1, 2001 – April 30, 2001
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
November 1, 2000 – November 30, 2000
Resolved
Monitoring, Regular
—
Nitrate
January 1, 1993 – December 31, 1993
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
January 1, 2016 – December 31, 2016	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2015 – December 31, 2015	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
September 1, 2006 – September 30, 2006	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
November 1, 2003 – November 30, 2003	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
January 1, 2002 – August 26, 2008	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
June 1, 2001 – June 30, 2001	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
May 1, 2001 – May 31, 2001	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
April 1, 2001 – April 30, 2001	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
November 1, 2000 – November 30, 2000	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	Nitrate	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

July 18, 2017State Public Notification requested5 linked violations
November 9, 2016State Violation/Reminder Notice19 linked violations
October 7, 2015State Public Notification requested3 linked violations
December 16, 2003State Violation/Reminder Notice4 linked violations
January 9, 2003State Public Notification requested2 linked violations
January 9, 2003State Violation/Reminder Notice3 linked violations
December 14, 2001State Administrative/Compliance Order without penalty issued1 linked violation
December 14, 2001State Administrative/Compliance Order without penalty issued4 linked violations
October 16, 2001State Public Notification requested1 linked violation
October 16, 2001State Intentional no-action1 linked violation
August 14, 2001State Formal Notice of Violation issued1 linked violation
July 9, 2001State Formal Notice of Violation issued1 linked violation
May 15, 2001State Formal Notice of Violation issued1 linked violation
February 13, 2001State Formal Notice of Violation issued4 linked violations
February 13, 2001State Public Notification requested1 linked violation
September 20, 2000State Formal Notice of Violation issued1 linked violation
June 5, 1995State Compliance achieved2 linked violations
March 6, 1995State Public Notification requested1 linked violation
March 6, 1995State Violation/Reminder Notice1 linked violation
March 6, 1995State Violation/Reminder Notice1 linked violation
March 6, 1995State Public Notification requested1 linked violation

Common questions

Is MESA WSD required to publish a Consumer Confidence Report?: Yes. MESA WSD is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is MESA WSD’s next Consumer Confidence Report due?: MESA WSD’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does MESA WSD have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for MESA WSD.
What is a Consumer Confidence Report?: A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

BRIDGES, BOB

970-261-2654

MESA, CO 81643