Public water system record

Vallecitos MDWCA

Serves an area of Rio Arriba County, NM · 84 people served

Federal records show 24 health-based violations and 25 monitoring/reporting issues for Vallecitos MDWCA in the last ten years. The most serious issue in this window was a resolved Interim Enhanced Surface Water Treatment Rule violation.

  • NM3503521
  • VALLECITOS
  • NM
  • 84 served

System profile

Source water Surface water
ZIP 87581
EPA system ID NM3503521

Verify this system on EPA ECHO →

Health-based violations, last 10 years
24
Resolved
24
Unresolved
0
Any acute record
Yes
Monitoring issues, last 10 years
25

Key facts

  • Vallecitos MDWCA draws water from 1 surface water intake.
  • Most recent enforcement action: boil water order by New Mexico, August 2017.
  • Record on file since 1993, with 33 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 27 service lines.

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Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

Contaminant Rule family Start date Status Acute
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Jul 1, 2018 Resolved Yes
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Jun 1, 2018 Resolved Yes
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 May 1, 2018 Resolved Yes
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Apr 1, 2018 Resolved Yes
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Mar 1, 2018 Resolved Yes
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Mar 1, 2018 Resolved Yes
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Jan 1, 2018 Resolved Yes
Revised Total Coliform Rule
Contaminant limit exceeded
110 Dec 1, 2017 Resolved Yes
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Dec 1, 2017 Resolved Yes
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Dec 1, 2017 Resolved Yes
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Nov 1, 2017 Resolved Yes
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Nov 1, 2017 Resolved Yes
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Oct 1, 2017 Resolved Yes
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Oct 1, 2017 Resolved Yes
Surface Water Treatment Rule
Treatment technique failure
120 Sep 1, 2017 Resolved No
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Sep 1, 2017 Resolved Yes
Revised Total Coliform Rule
Contaminant limit exceeded
110 Aug 1, 2017 Resolved Yes
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Aug 1, 2017 Resolved Yes
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Aug 1, 2017 Resolved Yes
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Apr 1, 2017 Resolved Yes
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Mar 1, 2017 Resolved Yes
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Mar 1, 2017 Resolved Yes
Surface Water Treatment Rule
Treatment technique failure
120 Feb 1, 2017 Resolved No
Long Term 2 Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Apr 1, 2010 Resolved No

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue Start date Status
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jul 1, 2022 Resolved
Public Notice
OTHER
Jun 22, 2019 Resolved
Public Notice
OTHER
Dec 5, 2018 Resolved
Revised Total Coliform Rule
Monitoring violation
May 1, 2018 Resolved
Public Notice
OTHER
Jan 8, 2018 Resolved
Public Notice
OTHER
Dec 10, 2017 Resolved
Public Notice
OTHER
Dec 8, 2017 Resolved
Public Notice
OTHER
Nov 12, 2017 Resolved
Public Notice
OTHER
Oct 12, 2017 Resolved
Revised Total Coliform Rule
Monitoring violation
Oct 1, 2017 Resolved
Public Notice
OTHER
Aug 12, 2017 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Aug 1, 2017 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Aug 1, 2017 Resolved
Chlorine
Monitoring and reporting
Jul 1, 2017 Resolved
Public Notice
OTHER
Jun 8, 2017 Resolved
Public Notice
OTHER
May 5, 2017 Resolved
Public Notice
OTHER
Apr 17, 2017 Resolved
Public Notice
OTHER
Mar 23, 2017 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Feb 1, 2017 Resolved
Public Notice
OTHER
Jan 12, 2017 Resolved
Chlorine
Monitoring and reporting
Jan 1, 2017 Resolved
Public Notice
OTHER
Aug 21, 2015 Resolved
Lead and Copper Rule
Monitoring and reporting
Oct 1, 2013 Resolved
Lead and Copper Rule
Monitoring and reporting
Jan 1, 2009 Resolved
Lead and Copper Rule
Monitoring and reporting
Jan 1, 2008 Resolved

Full record since 1993

EPA's records for Vallecitos MDWCA go back to 1993. Before October 19, 2016 they list 33 health-based violations (33 resolved) and 114 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 4 11
2000s 14 85
2010 to October 18, 2016 15 18
October 19, 2016 to 2019 23 20
2020s 0 1

Most recent health-based violation before October 19, 2016: Interim Enhanced Surface Water Treatment Rule (acute), began September 2016, Resolved.

Show all 33 health-based violations before October 19, 2016
Contaminant Start date Status
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Sep 1, 2016 Resolved
Surface Water Treatment Rule
Treatment technique failure
Jun 1, 2016 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
May 1, 2016 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
May 1, 2016 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Apr 1, 2016 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Apr 1, 2016 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Feb 1, 2016 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Jan 1, 2016 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Aug 1, 2015 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Jun 1, 2015 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
May 1, 2015 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Apr 1, 2015 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Mar 1, 2015 Resolved
Surface Water Treatment Rule
Treatment technique failure
Apr 1, 2010 Resolved
Long Term 2 Enhanced Surface Water Treatment Rule
Treatment technique failure
Apr 1, 2010 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
May 1, 2008 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Mar 1, 2007 Resolved
Surface Water Treatment Rule
Treatment technique failure
May 1, 2005 Resolved
Surface Water Treatment Rule
Treatment technique failure
Apr 1, 2005 Resolved
Surface Water Treatment Rule
Treatment technique failure
Dec 31, 2004 Resolved
Surface Water Treatment Rule
Treatment technique failure
Dec 1, 2004 Resolved
Surface Water Treatment Rule
Treatment technique failure
Nov 1, 2004 Resolved
Surface Water Treatment Rule
Treatment technique failure
Nov 1, 2004 Resolved
Surface Water Treatment Rule
Treatment technique failure
Oct 1, 2004 Resolved
Surface Water Treatment Rule
Treatment technique failure
Oct 1, 2004 Resolved
Total Coliform
Contaminant limit exceeded
Nov 1, 2002 Resolved
Total Coliform
Contaminant limit exceeded
Oct 1, 2002 Resolved
Total Coliform
Contaminant limit exceeded
Sep 1, 2002 Resolved
Total Coliform
Contaminant limit exceeded
Apr 1, 2000 Resolved
Total Coliform
Contaminant limit exceeded
Aug 1, 1999 Resolved
Total Coliform
Contaminant limit exceeded
Sep 1, 1998 Resolved
Total Coliform
Contaminant limit exceeded
Nov 1, 1997 Resolved
Total Coliform
Contaminant limit exceeded
Oct 1, 1997 Resolved

Enforcement actions

New Mexico regulators and EPA took 3 formal enforcement actions against Vallecitos MDWCA and issued 5 boil water orders between 1998 and 2017. The most recent was a boil water order in August 2017.

Date By Action Violations covered
Aug 14, 2017 New Mexico Boil water order 1 violation (1 health-based): Revised Total Coliform Rule
Apr 23, 2010 New Mexico Boil water order 1 violation (1 health-based): Surface Water Treatment Rule
Apr 3, 2008 New Mexico Boil water order 1 violation
Apr 6, 2007 New Mexico Boil water order 1 violation (1 health-based): Interim Enhanced Surface Water Treatment Rule
Jul 29, 2005 New Mexico Boil water order 1 violation (1 health-based): Surface Water Treatment Rule
Jun 30, 2005 New Mexico Compliance order (no penalty) 31 violations (24 health-based): Surface Water Treatment Rule, Interim Enhanced Surface Water Treatment Rule, Revised Total Coliform Rule
Aug 7, 2002 EPA Compliance order (no penalty) 2 violations: Consumer Confidence Rule
Jul 21, 1998 EPA Compliance order (no penalty) 9 violations (2 health-based): Total Coliform

What the violations mean

Interim Enhanced Surface Water Treatment Rule

19 incidents

The system did not meet a filtration or treatment requirement for surface water

Inadequate treatment of surface water can let pathogens such as Cryptosporidium and Giardia through

Revised Total Coliform Rule

2 incidents

The system did not meet a requirement of the Revised Total Coliform Rule

Coliform and E. coli rules protect against bacteria in the distribution system

Surface Water Treatment Rule

2 incidents

The system did not complete a treatment step or action that the Surface Water Treatment Rule requires (a treatment technique violation).

The utility had to notify customers about each of these violations.

Long Term 2 Enhanced Surface Water Treatment Rule

1 incident

The system failed required surface water treatment or filtration standards

Untreated or inadequately treated surface water can contain bacteria and viruses

Where the water comes from

Vallecitos MDWCA draws water from 1 surface water intake.

Annual water quality report

Vallecitos MDWCA must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.

Systems serving 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Vallecitos MDWCA for a copy.

Find a posted report with EPA's Consumer Confidence Report search

Testing your own water

To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by New Mexico.