BLANCO, NM · San Juan County

BLANCO MDWCA Water System

Current status

1 item on record is open and awaiting resolution as of July 4, 2026. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings. Full details are in the violation history below.

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): NM3531524
System type: Community Water System
Population served: 1,148
Service connections: 393
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2024 – June 30, 2024
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2024 – March 31, 2024
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2024 – March 31, 2024
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2023 – December 31, 2023
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2023 – September 30, 2023
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
February 1, 2023 – June 12, 2023
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2023 – March 31, 2023
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
September 1, 2022 – November 30, 2022
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
December 1, 2021 – February 28, 2022
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2021 – August 22, 2024
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
June 1, 2021 – August 31, 2021
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
June 1, 2019 – February 8, 2022
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
December 30, 2018
Unaddressed
Public Notification Violation for NPDWR Violation
—
Public Notice
November 10, 2018 – February 8, 2022
Resolved
Monitoring and Reporting (DBP)
—
TTHM
October 1, 2017 – December 31, 2017
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
September 17, 2017 – February 8, 2022
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
September 1, 2017 – November 30, 2017
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
June 18, 2017 – May 31, 2019
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
June 1, 2017 – August 31, 2017
Resolved
Monitoring and Reporting (DBP)
—
TTHM
April 1, 2017 – June 30, 2017
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2016 – October 17, 2017
Resolved
Sample Siting Plan Errors (RTCR)
—
Revised Total Coliform Rule
June 2, 2016 – July 11, 2016
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
June 1, 2016 – June 30, 2016
Resolved
Monitoring and Reporting (DBP)
—
TTHM
April 1, 2016 – June 30, 2016
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
February 29, 2016 – May 31, 2016
Resolved
Monitoring and Reporting (DBP)
—
TTHM
October 1, 2015 – December 31, 2015
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2015 – June 13, 2018
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
September 1, 2015 – November 30, 2015
Resolved
Monitoring and Reporting (DBP)
—
TTHM
July 1, 2015 – September 30, 2015
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2015 – October 17, 2017
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
June 1, 2015 – August 31, 2015
Resolved
Monitoring and Reporting (DBP)
—
TTHM
April 1, 2015 – June 30, 2015
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
March 1, 2015 – May 31, 2015
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2015 – March 31, 2015
Resolved
Monitoring and Reporting (DBP)
—
TTHM
October 1, 2014 – December 31, 2014
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
September 1, 2014 – November 30, 2014
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2014 – September 3, 2015
Resolved
Failure To Address Deficiency
Health-based
Groundwater Rule
June 2, 2014 – December 12, 2017
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
June 1, 2014 – August 31, 2014
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
March 1, 2014 – May 31, 2014
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
December 1, 2013 – February 28, 2014
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
October 1, 2013 – November 30, 2013
Resolved
Monitoring and Reporting (DBP)
—
TTHM
October 1, 2013 – December 31, 2013
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2012 – August 7, 2012
Resolved
Monitoring and Reporting (DBP)
—
TTHM
October 1, 2011 – December 31, 2011
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
October 1, 2011 – December 31, 2011
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2011 – August 7, 2012
Resolved
Monitoring and Reporting (DBP)
—
TTHM
July 1, 2011 – September 30, 2011
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
July 1, 2011 – September 30, 2011
Resolved
Monitoring and Reporting (DBP)
—
TTHM
April 1, 2011 – June 30, 2011
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
April 1, 2011 – June 30, 2011
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2011 – March 31, 2011
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2011 – March 31, 2011
Resolved
Monitoring and Reporting (DBP)
—
TTHM
October 1, 2010 – December 31, 2010
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
October 1, 2010 – December 31, 2010
Resolved
Failure Submit IDSE/Subpart V Plan Rpt
—
Stage 2 Disinfectants and Disinfection Byproducts Rule
July 2, 2010 – August 23, 2012
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
July 1, 2010 – September 30, 2010
Resolved
Monitoring and Reporting (DBP)
—
TTHM
July 1, 2010 – September 30, 2010
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2010 – August 7, 2012
Resolved
Monitoring and Reporting (DBP)
—
TTHM
April 1, 2010 – June 30, 2010
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
April 1, 2010 – June 30, 2010
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2010 – March 31, 2010
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2010 – March 31, 2010
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
October 1, 2009 – December 31, 2009
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2009 – August 7, 2012
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2008 – October 25, 2010
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
July 1, 2007 – September 30, 2007
Resolved
Monitoring and Reporting (DBP)
—
TTHM
July 1, 2007 – September 30, 2007
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
April 1, 2007 – June 30, 2007
Resolved
Monitoring and Reporting (DBP)
—
TTHM
April 1, 2007 – June 30, 2007
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
October 1, 2006 – December 31, 2006
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
October 1, 2006 – October 31, 2006
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
September 10, 2006 – October 25, 2010
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
July 1, 2005 – July 31, 2005
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2000 – December 14, 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	TTHM	Health-based	Resolved
January 1, 2024 – March 31, 2024	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2024 – March 31, 2024	Monitoring and Reporting (DBP)	TTHM	—	Resolved
October 1, 2023 – December 31, 2023	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2023 – September 30, 2023	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
February 1, 2023 – June 12, 2023	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
January 1, 2023 – March 31, 2023	Monitoring and Reporting (DBP)	TTHM	—	Resolved
September 1, 2022 – November 30, 2022	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
December 1, 2021 – February 28, 2022	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
October 1, 2021 – August 22, 2024	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
June 1, 2021 – August 31, 2021	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
June 1, 2019 – February 8, 2022	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
December 30, 2018	Lead Consumer Notice	Lead and Copper Rule	—	Unaddressed
November 10, 2018 – February 8, 2022	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
October 1, 2017 – December 31, 2017	Monitoring and Reporting (DBP)	TTHM	—	Resolved
September 17, 2017 – February 8, 2022	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
September 1, 2017 – November 30, 2017	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
June 18, 2017 – May 31, 2019	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
June 1, 2017 – August 31, 2017	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
April 1, 2017 – June 30, 2017	Monitoring and Reporting (DBP)	TTHM	—	Resolved
July 1, 2016 – October 17, 2017	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
June 2, 2016 – July 11, 2016	Sample Siting Plan Errors (RTCR)	Revised Total Coliform Rule	—	Resolved
June 1, 2016 – June 30, 2016	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
April 1, 2016 – June 30, 2016	Monitoring and Reporting (DBP)	TTHM	—	Resolved
February 29, 2016 – May 31, 2016	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
October 1, 2015 – December 31, 2015	Monitoring and Reporting (DBP)	TTHM	—	Resolved
October 1, 2015 – June 13, 2018	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
September 1, 2015 – November 30, 2015	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
July 1, 2015 – September 30, 2015	Monitoring and Reporting (DBP)	TTHM	—	Resolved
July 1, 2015 – October 17, 2017	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
June 1, 2015 – August 31, 2015	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
April 1, 2015 – June 30, 2015	Monitoring and Reporting (DBP)	TTHM	—	Resolved
March 1, 2015 – May 31, 2015	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2015 – March 31, 2015	Monitoring and Reporting (DBP)	TTHM	—	Resolved
October 1, 2014 – December 31, 2014	Monitoring and Reporting (DBP)	TTHM	—	Resolved
September 1, 2014 – November 30, 2014	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
July 1, 2014 – September 3, 2015	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
June 2, 2014 – December 12, 2017	Failure To Address Deficiency	Groundwater Rule	Health-based	Resolved
June 1, 2014 – August 31, 2014	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
March 1, 2014 – May 31, 2014	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
December 1, 2013 – February 28, 2014	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
October 1, 2013 – November 30, 2013	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
October 1, 2013 – December 31, 2013	Monitoring and Reporting (DBP)	TTHM	—	Resolved
July 1, 2012 – August 7, 2012	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
October 1, 2011 – December 31, 2011	Monitoring and Reporting (DBP)	TTHM	—	Resolved
October 1, 2011 – December 31, 2011	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
July 1, 2011 – August 7, 2012	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2011 – September 30, 2011	Monitoring and Reporting (DBP)	TTHM	—	Resolved
July 1, 2011 – September 30, 2011	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
April 1, 2011 – June 30, 2011	Monitoring and Reporting (DBP)	TTHM	—	Resolved
April 1, 2011 – June 30, 2011	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2011 – March 31, 2011	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
October 1, 2010 – December 31, 2010	Monitoring and Reporting (DBP)	TTHM	—	Resolved
October 1, 2010 – December 31, 2010	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
July 2, 2010 – August 23, 2012	Failure Submit IDSE/Subpart V Plan Rpt	Stage 2 Disinfectants and Disinfection Byproducts Rule	—	Resolved
July 1, 2010 – September 30, 2010	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
July 1, 2010 – September 30, 2010	Monitoring and Reporting (DBP)	TTHM	—	Resolved
July 1, 2010 – August 7, 2012	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
April 1, 2010 – June 30, 2010	Monitoring and Reporting (DBP)	TTHM	—	Resolved
April 1, 2010 – June 30, 2010	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2010 – March 31, 2010	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2010 – March 31, 2010	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
October 1, 2009 – December 31, 2009	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
July 1, 2009 – August 7, 2012	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
October 1, 2008 – October 25, 2010	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
July 1, 2007 – September 30, 2007	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
July 1, 2007 – September 30, 2007	Monitoring and Reporting (DBP)	TTHM	—	Resolved
April 1, 2007 – June 30, 2007	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
April 1, 2007 – June 30, 2007	Monitoring and Reporting (DBP)	TTHM	—	Resolved
October 1, 2006 – December 31, 2006	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
October 1, 2006 – October 31, 2006	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
September 10, 2006 – October 25, 2010	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2005 – July 31, 2005	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
July 1, 2000 – December 14, 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

August 3, 2010State Violation/Reminder Notice2 linked violations
April 14, 2010State Compliance achieved1 linked violation
April 12, 2010State Compliance achieved2 linked violations
August 17, 2009State Compliance achieved1 linked violation
August 11, 2009State Public Notification received1 linked violation
August 11, 2009State Public Notification received1 linked violation
July 30, 2009State Public Notification received1 linked violation
July 23, 2009State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
June 23, 2009State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
May 27, 2009State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
September 29, 2008State Compliance achieved2 linked violations
February 13, 2008State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
January 31, 2008State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
January 5, 2007State Public Notification requested1 linked violation
September 18, 2006State Public Notification received2 linked violations
February 20, 2006State Violation/Reminder Notice7 linked violations
June 13, 2005State Compliance achieved2 linked violations
February 17, 2005State Public Notification requested5 linked violations
January 18, 2005State Violation/Reminder Notice3 linked violations
February 4, 1993State Public Notification requested5 linked violations
August 17, 1992State Technical Assistance Visit2 linked violations
August 14, 1992State Technical Assistance Visit2 linked violations
August 11, 1992State Boil Water Order3 linked violations

Contact

FLOREZ, KENNY

505-632-1661

BLANCO, NM 87412