LOS OJOS, NM · Rio Arriba County

LOS OJOS MDWCA Water System

Current status

No open violations on record as of July 4, 2026.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 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)

Violation history

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
Public Notification Violation for NPDWR Violation
—
Public Notice
December 16, 2018 – March 28, 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
March 23, 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
July 1, 2017 – July 31, 2017
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
May 20, 2017 – March 20, 2020
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
April 1, 2017 – April 30, 2017
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
November 1, 2016 – November 30, 2016
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
October 1, 2016 – October 31, 2016
Resolved
Monitoring and Reporting (DBP)
—
TTHM
September 1, 2016 – August 31, 2017
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
Failure To Address Deficiency
Health-based
Groundwater Rule
January 18, 2015 – March 10, 2015
Resolved
Failure To Address Deficiency
Health-based
Groundwater Rule
October 23, 2014 – March 10, 2015
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)
—
Total Haloacetic Acids (HAA5)
January 1, 2014 – August 31, 2014
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2014 – August 31, 2014
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
March 8, 2008 – October 22, 2010
Resolved
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Pentachlorophenol
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Carbofuran
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Simazine
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
—
Toxaphene
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
BHC-GAMMA
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Atrazine
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
—
Nickel
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Mercury
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Cadmium
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
—
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
—
Carbon tetrachloride
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, Routine Minor (TCR)
—
Coliform (TCR)
July 1, 1994 – July 31, 1994
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 1992 – December 31, 1992
Resolved
Monitoring, Regular
—
Nitrate
July 1, 1981 – June 30, 1984
Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
October 1, 2024 – December 18, 2024	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
October 1, 2023 – September 29, 2024	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
March 2, 2023 – January 17, 2024	Failure To Address Deficiency	Groundwater Rule	Health-based	Resolved
March 2, 2023 – December 26, 2024	Failure To Address Deficiency	Groundwater Rule	Health-based	Resolved
March 2, 2023 – December 26, 2024	Failure To Address Deficiency	Groundwater Rule	Health-based	Resolved
March 2, 2023 – December 1, 2022	Failure To Address Deficiency	Groundwater Rule	Health-based	Resolved
March 2, 2023 – December 26, 2024	Failure To Address Deficiency	Groundwater Rule	Health-based	Resolved
December 5, 2022 – December 26, 2024	Failure to Consult with State	Groundwater Rule	—	Resolved
April 1, 2022 – October 5, 2022	Failure to Notify Other PWS	Groundwater Rule	—	Resolved
April 1, 2021 – September 7, 2021	Failure to Notify Other PWS	Groundwater Rule	—	Resolved
April 1, 2020 – May 10, 2020	Failure to Notify Other PWS	Groundwater Rule	—	Resolved
March 1, 2020 – March 31, 2020	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
April 1, 2019 – April 19, 2019	Failure to Notify Other PWS	Groundwater Rule	—	Resolved
March 9, 2019 – March 12, 2019	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
March 4, 2019 – March 7, 2019	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
December 16, 2018 – March 28, 2019	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
December 16, 2018 – March 28, 2019	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
December 16, 2018 – March 28, 2019	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
September 1, 2018 – August 31, 2019	Monitoring and Reporting (DBP)	TTHM	—	Resolved
September 1, 2018 – August 31, 2019	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
July 20, 2018 – March 28, 2019	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
March 23, 2018 – March 28, 2019	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
March 23, 2018 – March 28, 2019	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
March 16, 2018 – March 7, 2019	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
March 8, 2018 – March 7, 2019	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
March 8, 2018 – March 7, 2019	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
October 25, 2017 – July 24, 2018	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
October 18, 2017 – March 28, 2019	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
October 18, 2017 – March 28, 2019	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
October 18, 2017 – March 28, 2019	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2017 – July 31, 2017	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
May 20, 2017 – March 20, 2020	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
April 1, 2017 – April 30, 2017	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
November 1, 2016 – November 30, 2016	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
October 1, 2016 – October 31, 2016	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
September 1, 2016 – August 31, 2017	Monitoring and Reporting (DBP)	TTHM	—	Resolved
September 1, 2016 – September 30, 2016	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
August 1, 2016 – August 31, 2016	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
July 1, 2016 – July 31, 2016	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
June 2, 2016 – November 22, 2017	Sample Siting Plan Errors (RTCR)	Revised Total Coliform Rule	—	Resolved
June 1, 2016 – June 30, 2016	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
September 1, 2015 – August 31, 2016	Monitoring and Reporting (DBP)	TTHM	—	Resolved
September 1, 2015 – August 31, 2016	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
July 1, 2015 – June 27, 2016	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
March 14, 2015 – March 7, 2019	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
January 18, 2015 – March 10, 2015	Failure To Address Deficiency	Groundwater Rule	Health-based	Resolved
October 23, 2014 – March 10, 2015	Failure To Address Deficiency	Groundwater Rule	Health-based	Resolved
September 1, 2014 – August 31, 2015	Monitoring and Reporting (DBP)	TTHM	—	Resolved
September 1, 2014 – August 31, 2015	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 24, 2014 – October 19, 2021	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
January 1, 2014 – August 31, 2014	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2014 – August 31, 2014	Monitoring and Reporting (DBP)	TTHM	—	Resolved
March 8, 2008 – October 22, 2010	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Pentachlorophenol	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Carbofuran	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Simazine	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Endothall	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Dalapon	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Toxaphene	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	BHC-GAMMA	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Atrazine	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Selenium	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Thallium, Total	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Beryllium, Total	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Nickel	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Mercury	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Cadmium	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Arsenic	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Styrene	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Benzene	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Resolved
July 1, 1994 – July 31, 1994	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
December 1, 1992 – December 31, 1992	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 1981 – June 30, 1984	Monitoring, Regular	Nitrate	—	Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

December 26, 2024State Compliance achieved3 linked violations
September 29, 2024State Compliance achieved2 linked violations
August 19, 2024State Public Notification requested2 linked violations
January 17, 2024State Compliance achieved2 linked violations
June 26, 2023State Violation/Reminder Notice6 linked violations
June 26, 2023State Public Notification requested6 linked violations
October 19, 2021State Compliance achieved2 linked violations
September 7, 2021State Violation/Reminder Notice3 linked violations
August 19, 2020State Compliance achieved4 linked violations
May 12, 2020State Compliance achieved2 linked violations
April 24, 2020State Violation/Reminder Notice3 linked violations
March 19, 2020State Public Notification requested8 linked violations
August 1, 2019State Compliance achieved7 linked violations
April 10, 2019State Violation/Reminder Notice3 linked violations
March 28, 2019State Compliance achieved3 linked violations
March 28, 2019State Compliance achieved5 linked violations
March 28, 2019State Compliance achieved4 linked violations
March 28, 2019State Compliance achieved4 linked violations
March 28, 2019State Compliance achieved4 linked violations
March 28, 2019State Compliance achieved5 linked violations
March 28, 2019State Compliance achieved3 linked violations
March 28, 2019State Compliance achieved3 linked violations
March 28, 2019State Compliance achieved3 linked violations
March 28, 2019State Compliance achieved4 linked violations
March 28, 2019State Compliance achieved3 linked violations
March 28, 2019State Compliance achieved3 linked violations
March 28, 2019State Compliance achieved3 linked violations
March 28, 2019State Compliance achieved3 linked violations
March 28, 2019State Compliance achieved3 linked violations
March 12, 2019State Public Notification received9 linked violations
October 18, 2018State Compliance achieved3 linked violations
March 13, 2018State Public Notification received8 linked violations
December 15, 2017State Violation/Reminder Notice2 linked violations
December 15, 2017State Public Notification requested2 linked violations
December 15, 2017State Public Notification requested2 linked violations
December 15, 2017State Public Notification requested2 linked violations
November 18, 2017State Public Notification received2 linked violations
November 9, 2017State Violation/Reminder Notice6 linked violations
November 9, 2017State Public Notification requested3 linked violations
July 19, 2017State Public Notification requested3 linked violations
July 19, 2017State Violation/Reminder Notice4 linked violations
July 19, 2017State Public Notification requested4 linked violations
July 19, 2017State Public Notification requested2 linked violations
March 22, 2017State Public Notification requested4 linked violations
March 22, 2017State Public Notification requested2 linked violations
October 24, 2016State Public Notification requested9 linked violations
October 17, 2016State Violation/Reminder Notice3 linked violations
June 27, 2016State Compliance achieved5 linked violations
March 10, 2015State Compliance achieved2 linked violations
March 10, 2015State Compliance achieved2 linked violations
March 10, 2015State Compliance achieved3 linked violations
February 11, 2015State Public Notification requested7 linked violations
October 22, 2010State Compliance achieved7 linked violations
October 3, 2004State Compliance achieved7 linked violations
September 25, 1998State Public Notification issued6 linked violations
September 10, 1998State Violation/Reminder Notice7 linked violations
August 9, 1996State Violation/Reminder Notice6 linked violations
August 15, 1994State Violation/Reminder Notice16 linked violations
January 12, 1993State Public Notification requested10 linked violations
January 9, 1993State Public Notification received5 linked violations

Contact

CANDELARIA, AGAPITO

575-779-8758

LOS OJOS, NM 87551