Is ALCALDE MDWCA required to publish a Consumer Confidence Report?

Yes. ALCALDE MDWCA 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 ALCALDE MDWCA’s next Consumer Confidence Report due?

ALCALDE MDWCA’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.

ALCALDE, NM · Rio Arriba County

ALCALDE MDWCA Water System

Consumer Confidence Report status

ALCALDE MDWCA 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 1 item for ALCALDE MDWCA that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.

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 New Mexico’s official records. Always confirm current status with New Mexico before making decisions based on this information.

System facts

System ID (PWSID): NM3535021
System type: Community Water System
Population served: 927
Service connections: 309
Ownership: local government
Water source: groundwater (wells)

ALCALDE MDWCA is one of 140 community water systems in New Mexico in the 501 to 3,300 people size category, serving 927 people from groundwater.

As of August 1, 2026, its federal record holds 15 entries between 2005 and 2024, of which 1 remains open; none are health-based.

Of the 15, 5 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 inorganic chemicals, the Public Notice Rule and Revised PN Rule, and the Stage 2 Disinfectants and Disinfection Byproducts Rule.

Violation history

Maximum Contaminant Level Violation, Average
Health-based
Arsenic
April 1, 2024 – June 30, 2024
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
January 1, 2024 – March 31, 2024
Resolved
Monitoring and Reporting (DBP)
—
TTHM
October 1, 2021 – September 30, 2022
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
April 1, 2019 – June 30, 2019
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
October 1, 2018 – September 30, 2019
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
April 1, 2018 – June 30, 2018
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
January 31, 2018 – July 1, 2017
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
January 1, 2018 – March 31, 2018
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
December 14, 2017 – January 9, 2018
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
November 14, 2017 – February 14, 2019
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
June 1, 2016 – June 30, 2016
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2014 – February 27, 2017
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
January 5, 2012
Unaddressed
Monitoring, Regular
—
Fluoride
October 1, 2005 – December 31, 2005
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2005 – October 22, 2010
Resolved

Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yet

Period	Violation	Contaminant / rule	Health-based	Status
April 1, 2024 – June 30, 2024	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
January 1, 2024 – March 31, 2024	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
October 1, 2021 – September 30, 2022	Monitoring and Reporting (DBP)	TTHM	—	Resolved
April 1, 2019 – June 30, 2019	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
October 1, 2018 – September 30, 2019	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
April 1, 2018 – June 30, 2018	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
January 31, 2018 – July 1, 2017	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
January 1, 2018 – March 31, 2018	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
December 14, 2017 – January 9, 2018	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
November 14, 2017 – February 14, 2019	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
June 1, 2016 – June 30, 2016	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
October 1, 2014 – February 27, 2017	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
January 5, 2012	Public Notification Violation for NPDWR Violation	Public Notice	—	Unaddressed
October 1, 2005 – December 31, 2005	Monitoring, Regular	Fluoride	—	Resolved
July 1, 2005 – October 22, 2010	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved

Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yet

Enforcement actions

February 24, 2026State Violation/Reminder Notice2 linked violations
November 19, 2025State Compliance achieved10 linked violations
October 15, 2025State Public Notification requested2 linked violations
June 11, 2025State Public Notification requested2 linked violations
April 8, 2025State Violation/Reminder Notice2 linked violations
March 4, 2025State Public Notification received1 linked violation
February 10, 2025State Violation/Reminder Notice1 linked violation
February 10, 2025State Public Notification requested1 linked violation
October 31, 2024State Public Notification received1 linked violation
September 30, 2024State Violation/Reminder Notice1 linked violation
September 30, 2024State Public Notification requested1 linked violation
April 22, 2024State Public Notification requested1 linked violation
April 4, 2024State Violation/Reminder Notice2 linked violations
April 4, 2024State Public Notification requested2 linked violations
March 20, 2024State Violation/Reminder Notice5 linked violations
January 24, 2024State Public Notification received5 linked violations
December 20, 2023State Public Notification requested5 linked violations
September 14, 2023State Compliance achieved3 linked violations
March 17, 2020State Violation/Reminder Notice3 linked violations
February 25, 2020State Compliance achieved5 linked violations
September 27, 2019State Violation/Reminder Notice4 linked violations
September 27, 2019State Public Notification requested3 linked violations
June 13, 2019State Public Notification requested5 linked violations
February 14, 2019State Compliance achieved4 linked violations
August 21, 2018State Compliance achieved2 linked violations
July 1, 2017State Compliance achieved5 linked violations
February 1, 2017State Public Notification received4 linked violations
January 24, 2017State Public Notification requested4 linked violations
September 16, 2016State Public Notification requested3 linked violations
September 16, 2016State Violation/Reminder Notice3 linked violations
September 12, 2016State Violation/Reminder Notice2 linked violations
September 12, 2016State Public Notification requested2 linked violations
August 31, 2016State Compliance achieved3 linked violations
August 3, 2016State Violation/Reminder Notice2 linked violations
April 15, 2016State Public Notification requested2 linked violations
May 23, 2015State Public Notification received2 linked violations
June 26, 2013State Compliance achieved2 linked violations
January 14, 2013State Compliance achieved2 linked violations
July 1, 2012State Public Notification received2 linked violations
July 1, 2011State Public Notification received2 linked violations
January 4, 2011State Violation/Reminder Notice2 linked violations
January 4, 2011State Public Notification requested2 linked violations
January 4, 2011State Public Notification requested2 linked violations
November 30, 2010State Violation/Reminder Notice2 linked violations
October 22, 2010State Compliance achieved5 linked violations
October 7, 2010State Public Notification requested2 linked violations
October 7, 2010State Violation/Reminder Notice2 linked violations
September 7, 2010State Public Notification requested1 linked violation
July 21, 2010State Violation/Reminder Notice2 linked violations
July 28, 2009State Compliance achieved4 linked violations
July 10, 2009State Violation/Reminder Notice2 linked violations
March 19, 2008State Compliance achieved3 linked violations
August 29, 2007State Compliance achieved9 linked violations
March 8, 2007State Violation/Reminder Notice2 linked violations
March 15, 1993State Public Notification requested17 linked violations

Common questions

Is ALCALDE MDWCA required to publish a Consumer Confidence Report?: Yes. ALCALDE MDWCA 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 ALCALDE MDWCA’s next Consumer Confidence Report due?: ALCALDE MDWCA’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does ALCALDE MDWCA have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show 1 item for ALCALDE MDWCA that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
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

VALDEZ, MATTHEW

505-929-1196

ALCALDE, NM 87511