VALLECITOS, NM · Rio Arriba County

VALLECITOS 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): NM3503521
System type: Community Water System
Population served: 84
Service connections: 28
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
May 1, 2018 – May 31, 2018
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
May 1, 2018 – May 31, 2018
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
March 1, 2018 – March 31, 2018
Resolved
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
March 1, 2018 – March 31, 2018
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
December 1, 2017 – December 31, 2017
Resolved
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
December 1, 2017 – December 31, 2017
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
November 1, 2017 – November 30, 2017
Resolved
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
November 1, 2017 – November 30, 2017
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
October 1, 2017 – October 31, 2017
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
October 1, 2017 – October 31, 2017
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
September 1, 2017 – September 30, 2017
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
September 1, 2017 – September 30, 2017
Resolved
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
August 1, 2017 – August 31, 2017
Resolved
Maximum Contaminant Level Violation, E. coli (RTCR)
Health-based
Revised Total Coliform Rule
August 1, 2017 – August 31, 2017
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
August 1, 2017 – August 31, 2017
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
August 1, 2017 – August 31, 2017
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
August 1, 2017 – August 31, 2017
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
June 8, 2017 – May 1, 2018
Resolved
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
March 1, 2017 – March 31, 2017
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
March 1, 2017 – March 31, 2017
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
February 1, 2017 – February 28, 2017
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
June 1, 2016 – June 30, 2016
Resolved
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
April 1, 2016 – April 30, 2016
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 2016 – February 29, 2016
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
February 1, 2016 – February 29, 2016
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 2015 – November 30, 2015
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
August 1, 2015 – August 31, 2015
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
May 1, 2015 – May 31, 2015
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
May 1, 2015 – May 31, 2015
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
August 1, 2014 – July 31, 2015
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2014 – July 31, 2014
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
September 1, 2010 – September 30, 2010
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
April 1, 2010 – April 30, 2010
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
June 1, 2009 – June 30, 2009
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
March 8, 2008 – October 22, 2010
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2008 – December 12, 2016
Resolved
Monitoring, Regular
—
Selenium
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Cadmium
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Arsenic
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Antimony, Total
January 1, 2007 – December 31, 2007
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2006 – July 10, 2009
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
January 29, 2006 – October 22, 2010
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Toluene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Thallium, Total
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Beryllium, Total
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Antimony, Total
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Nickel
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Mercury
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Cadmium
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2006 – December 31, 2006
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
April 1, 2005 – December 31, 2004
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2005 – December 31, 2005
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2005 – December 31, 2005
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
October 1, 2004 – October 31, 2004
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
November 1, 2002 – November 30, 2002
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
January 1, 1998 – January 31, 1998
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
May 1, 2018 – May 31, 2018	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
May 1, 2018 – May 31, 2018	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
March 1, 2018 – March 31, 2018	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
March 1, 2018 – March 31, 2018	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
December 1, 2017 – December 31, 2017	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
December 1, 2017 – December 31, 2017	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
November 1, 2017 – November 30, 2017	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
November 1, 2017 – November 30, 2017	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
October 1, 2017 – October 31, 2017	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
October 1, 2017 – October 31, 2017	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
September 1, 2017 – September 30, 2017	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
September 1, 2017 – September 30, 2017	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
August 1, 2017 – August 31, 2017	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
August 1, 2017 – August 31, 2017	Maximum Contaminant Level Violation, E. coli (RTCR)	Revised Total Coliform Rule	Health-based	Resolved
August 1, 2017 – August 31, 2017	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
August 1, 2017 – August 31, 2017	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
August 1, 2017 – August 31, 2017	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
June 8, 2017 – May 1, 2018	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
March 1, 2017 – March 31, 2017	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
March 1, 2017 – March 31, 2017	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
February 1, 2017 – February 28, 2017	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
June 1, 2016 – June 30, 2016	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
April 1, 2016 – April 30, 2016	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
February 1, 2016 – February 29, 2016	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
February 1, 2016 – February 29, 2016	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
November 1, 2015 – November 30, 2015	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
August 1, 2015 – August 31, 2015	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
May 1, 2015 – May 31, 2015	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
May 1, 2015 – May 31, 2015	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
August 1, 2014 – July 31, 2015	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2014 – July 31, 2014	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
September 1, 2010 – September 30, 2010	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
April 1, 2010 – April 30, 2010	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
June 1, 2009 – June 30, 2009	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
March 8, 2008 – October 22, 2010	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
January 1, 2008 – December 12, 2016	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	Selenium	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	Cadmium	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	Arsenic	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	Antimony, Total	—	Resolved
July 1, 2006 – July 10, 2009	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 29, 2006 – October 22, 2010	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Toluene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Thallium, Total	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Beryllium, Total	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Antimony, Total	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Nickel	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Mercury	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Cadmium	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Vinyl chloride	—	Resolved
April 1, 2005 – December 31, 2004	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
January 1, 2005 – December 31, 2005	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2005 – December 31, 2005	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
October 1, 2004 – October 31, 2004	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
November 1, 2002 – November 30, 2002	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
January 1, 1998 – January 31, 1998	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

April 29, 2020State Compliance achieved3 linked violations
April 29, 2020State Public Notification received2 linked violations
March 4, 2020State Violation/Reminder Notice4 linked violations
March 4, 2020State Public Notification requested4 linked violations
March 28, 2019State Compliance achieved2 linked violations
March 28, 2019State Compliance achieved2 linked violations
October 29, 2018State Compliance achieved17 linked violations
July 3, 2018State Public Notification requested2 linked violations
July 3, 2018State Violation/Reminder Notice2 linked violations
June 21, 2018State Violation/Reminder Notice2 linked violations
June 13, 2018State Compliance achieved2 linked violations
June 7, 2018State Violation/Reminder Notice2 linked violations
May 31, 2018State Compliance achieved5 linked violations
May 23, 2018State Public Notification received2 linked violations
May 1, 2018State Compliance achieved2 linked violations
May 1, 2018State Compliance achieved2 linked violations
May 1, 2018State Compliance achieved2 linked violations
May 1, 2018State Compliance achieved2 linked violations
April 19, 2018State Public Notification received2 linked violations
April 19, 2018State Public Notification received2 linked violations
April 12, 2018State Public Notification received2 linked violations
April 12, 2018State Public Notification received2 linked violations
April 11, 2018State Public Notification requested2 linked violations
February 13, 2018State Public Notification requested2 linked violations
January 18, 2018State Compliance achieved3 linked violations
January 8, 2018State Compliance achieved2 linked violations
January 3, 2018State Public Notification received2 linked violations
January 2, 2018State Violation/Reminder Notice2 linked violations
December 8, 2017State Violation/Reminder Notice3 linked violations
December 6, 2017State Public Notification requested2 linked violations
November 15, 2017State Public Notification requested5 linked violations
October 6, 2017State Compliance achieved5 linked violations
October 6, 2017State Compliance achieved3 linked violations
September 15, 2017State Violation/Reminder Notice2 linked violations
September 7, 2017State Compliance achieved2 linked violations
September 5, 2017State Public Notification requested2 linked violations
July 1, 2017State Compliance achieved2 linked violations
July 1, 2017State Compliance achieved2 linked violations
July 1, 2017State Compliance achieved2 linked violations
May 8, 2017State Violation/Reminder Notice2 linked violations
April 4, 2017State Public Notification requested2 linked violations
April 4, 2017State Violation/Reminder Notice2 linked violations
March 28, 2017State Public Notification received2 linked violations
March 16, 2017State Public Notification requested2 linked violations
March 16, 2017State Compliance achieved2 linked violations
January 26, 2017State Compliance achieved3 linked violations
December 12, 2016State Compliance achieved2 linked violations
December 12, 2016State Compliance achieved2 linked violations
November 17, 2016State Compliance achieved2 linked violations
November 15, 2016State Violation/Reminder Notice2 linked violations
October 14, 2016State Public Notification requested2 linked violations
July 13, 2016State Public Notification received2 linked violations
July 1, 2016State Public Notification received2 linked violations
June 30, 2016State Compliance achieved7 linked violations
June 20, 2016State Violation/Reminder Notice2 linked violations
June 20, 2016State Public Notification requested2 linked violations
May 9, 2016State Public Notification received2 linked violations
May 5, 2016State Violation/Reminder Notice3 linked violations
May 5, 2016State Public Notification requested2 linked violations
March 22, 2016State Violation/Reminder Notice2 linked violations
March 15, 2016State Violation/Reminder Notice3 linked violations
February 10, 2016State Public Notification requested4 linked violations
October 2, 2015State Compliance achieved4 linked violations
August 8, 2015State Public Notification received7 linked violations
October 14, 2011State Violation/Reminder Notice3 linked violations
October 14, 2011State Public Notification requested2 linked violations
May 25, 2011State Compliance achieved3 linked violations
October 22, 2010State Compliance achieved2 linked violations
October 22, 2010State Compliance achieved2 linked violations
October 22, 2010State Compliance achieved2 linked violations
April 27, 2010State Public Notification received2 linked violations
April 23, 2010State Public Notification requested2 linked violations
April 23, 2010State Boil Water Order2 linked violations
April 7, 2010State Violation/Reminder Notice2 linked violations
July 17, 2009State Public Notification requested3 linked violations
July 10, 2009State Compliance achieved5 linked violations
July 31, 2008State Compliance achieved21 linked violations
September 25, 2007State Compliance achieved3 linked violations
September 18, 2007State Compliance achieved3 linked violations
April 6, 2007State Boil Water Order3 linked violations
July 29, 2005State Boil Water Order5 linked violations
May 11, 2005State Formal Notice of Violation issued36 linked violations
April 30, 2005State Public Notification requested11 linked violations
April 30, 2005State Violation/Reminder Notice6 linked violations
January 31, 2005State Compliance achieved2 linked violations
January 31, 2005State Public Notification requested16 linked violations
January 30, 2005State Compliance achieved2 linked violations
December 31, 2004State Compliance achieved2 linked violations
December 31, 2004State Compliance achieved2 linked violations
November 30, 2004State Compliance achieved2 linked violations
November 30, 2004State Compliance achieved2 linked violations
October 31, 2004State Compliance achieved2 linked violations
November 30, 2002State Compliance achieved2 linked violations
September 30, 2002State Compliance achieved2 linked violations
September 30, 2002State Compliance achieved2 linked violations
July 20, 2000Federal Compliance achieved1 linked violation
November 26, 1997State Violation/Reminder Notice72 linked violations
August 31, 1996State Public Notification issued6 linked violations

Contact

MCFARLAND, MATTSON

801-879-4457

VALLECITOS, NM 87581