Public Water Partners

LOS OJOS, NM · Rio Arriba County

LOS OJOS MDWCA Water System

Consumer Confidence Report status

LOS OJOS 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 open health-based violation for LOS OJOS MDWCA, alongside 2 other open items.

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)
NM3502921
System type
Community Water System
Population served
237
Service connections
83
Ownership
local government
Water source
groundwater (wells)

LOS OJOS MDWCA is one of 667 community water systems in New Mexico in the 500 or fewer people size category, serving 237 people from groundwater.

As of August 1, 2026, its federal record holds 79 entries between 2005 and 2025, of which 1 health-based item remains open, alongside 2 other open entries.

Of the 79, 47 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 Public Notice Rule and Revised PN Rule, the Total Coliform Rules, and volatile organic chemicals.

Violation history

  • Public Notification Violation for NPDWR Violation

    Public Notice

    August 20, 2025

    Unaddressed
  • LSL Inventory

    Health-based

    LEAD AND COPPER RULE REVISIONS

    October 17, 2024

    Unaddressed
  • LSL Reporting

    LEAD AND COPPER RULE REVISIONS

    October 17, 2024

    Unaddressed
  • Consumer Confidence Report Inadequate Reporting

    Consumer Confidence Rule

    October 1, 2024 – December 18, 2024

    Resolved
  • Follow-up Or Routine LCR Tap M/R

    Lead and Copper Rule

    October 1, 2023 – September 29, 2024

    Resolved
  • Failure To Address Deficiency

    Health-based

    Groundwater Rule

    March 2, 2023 – January 17, 2024

    Resolved
  • Failure To Address Deficiency

    Health-based

    Groundwater Rule

    March 2, 2023 – December 26, 2024

    Resolved
  • Failure To Address Deficiency

    Health-based

    Groundwater Rule

    March 2, 2023 – December 26, 2024

    Resolved
  • Failure To Address Deficiency

    Health-based

    Groundwater Rule

    March 2, 2023 – December 1, 2022

    Resolved
  • Failure To Address Deficiency

    Health-based

    Groundwater Rule

    March 2, 2023 – December 26, 2024

    Resolved
  • Failure to Consult with State

    Groundwater Rule

    December 5, 2022 – December 26, 2024

    Resolved
  • Failure to Notify Other PWS

    Groundwater Rule

    April 1, 2022 – October 5, 2022

    Resolved
  • Failure to Notify Other PWS

    Groundwater Rule

    April 1, 2021 – September 7, 2021

    Resolved
  • Failure to Notify Other PWS

    Groundwater Rule

    April 1, 2020 – May 10, 2020

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    March 1, 2020 – March 31, 2020

    Resolved
  • Failure to Notify Other PWS

    Groundwater Rule

    April 1, 2019 – April 19, 2019

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    March 9, 2019 – March 12, 2019

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    March 4, 2019 – March 7, 2019

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    December 16, 2018 – March 28, 2019

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    September 1, 2018 – August 31, 2019

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    September 1, 2018 – August 31, 2019

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    July 20, 2018 – March 28, 2019

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    July 20, 2018 – March 28, 2019

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    March 23, 2018 – March 28, 2019

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    March 16, 2018 – March 7, 2019

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    March 8, 2018 – March 7, 2019

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    March 8, 2018 – March 7, 2019

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    October 25, 2017 – July 24, 2018

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    October 18, 2017 – March 28, 2019

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    October 18, 2017 – March 28, 2019

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    October 18, 2017 – March 28, 2019

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    August 1, 2017 – August 31, 2017

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    June 1, 2017 – June 30, 2017

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    May 20, 2017 – March 20, 2020

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    May 1, 2017 – May 31, 2017

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    March 1, 2017 – March 31, 2017

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    January 1, 2017 – January 31, 2017

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    October 1, 2016 – October 31, 2016

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    September 1, 2016 – September 30, 2016

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    August 1, 2016 – August 31, 2016

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    July 1, 2016 – July 31, 2016

    Resolved
  • Sample Siting Plan Errors (RTCR)

    Revised Total Coliform Rule

    June 2, 2016 – November 22, 2017

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    June 1, 2016 – June 30, 2016

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    September 1, 2015 – August 31, 2016

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    September 1, 2015 – August 31, 2016

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2015 – June 27, 2016

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    March 14, 2015 – March 7, 2019

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    September 1, 2014 – August 31, 2015

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    September 1, 2014 – August 31, 2015

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    January 24, 2014 – October 19, 2021

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    January 1, 2014 – August 31, 2014

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    January 1, 2014 – August 31, 2014

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    March 8, 2008 – October 22, 2010

    Resolved
  • Monitoring, Regular

    1,1,1-Trichloroethane

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    1,2-Dichloroethane

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    trans-1,2-Dichloroethylene

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Xylenes, Total

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    ETHYLENE DIBROMIDE

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    1,2-DIBROMO-3-CHLOROPROPANE

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Pentachlorophenol

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Atrazine

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Di(2-ethylhexyl) phthalate

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    OXAMYL

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Endothall

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Dalapon

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Selenium

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Thallium, Total

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Beryllium, Total

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Antimony, Total

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Mercury

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Arsenic

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Styrene

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Ethylbenzene

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Toluene

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Benzene

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    CHLOROBENZENE

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    1,1,2-Trichloroethane

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    Trichloroethylene

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Regular

    1,2-Dichloropropane

    January 1, 2005 – December 31, 2007

    Resolved

Unaddressed no corrective action on record yetResolved addressed and confirmed by the state

Enforcement actions

Common questions

Is LOS OJOS MDWCA required to publish a Consumer Confidence Report?

Yes. LOS OJOS 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 LOS OJOS MDWCA’s next Consumer Confidence Report due?

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

Does LOS OJOS MDWCA have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show 1 open health-based violation for LOS OJOS MDWCA, alongside 2 other open items.

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

CANDELARIA, AGAPITO

575-779-8758

LOS OJOS, NM 87551