Public water system record

Regina MDWCA

Serves Regina, Sandoval County, NM · 705 people served

Federal records show 36 health-based violations and 43 monitoring/reporting issues for Regina MDWCA in the last ten years, including an unresolved Groundwater Rule violation.

  • NM3509523
  • LOS ALAMOS
  • NM
  • 705 served

System profile

Source water Groundwater
ZIP 87544
EPA system ID NM3509523

Verify this system on EPA ECHO →

Health-based violations, last 10 years
36
Resolved
32
Unresolved
4
Any acute record
No
Monitoring issues, last 10 years
43

Key facts

  • Regina MDWCA draws water from 2 wells and 1 spring.
  • Record on file since 1999, with 24 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 218 unknown out of 236 service lines.

Check whether Regina MDWCA serves your address

Address suggestions by Mapbox

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
Groundwater Rule
Treatment technique failure
140 Oct 11, 2024 Active No
Groundwater Rule
Treatment technique failure
140 Oct 11, 2024 Resolved No
Groundwater Rule
Treatment technique failure
140 Oct 11, 2024 Resolved No
Groundwater Rule
Treatment technique failure
140 Oct 11, 2024 Active No
Groundwater Rule
Treatment technique failure
140 Oct 11, 2024 Active No
Groundwater Rule
Treatment technique failure
140 Oct 11, 2024 Active No
Groundwater Rule
Treatment technique failure
140 Oct 11, 2024 Resolved No
Groundwater Rule
Treatment technique failure
140 Oct 11, 2024 Resolved No
Groundwater Rule
Treatment technique failure
140 Nov 29, 2017 Resolved No
Groundwater Rule
Treatment technique failure
140 Nov 29, 2017 Resolved No
Groundwater Rule
Treatment technique failure
140 Nov 29, 2017 Resolved No
Groundwater Rule
Treatment technique failure
140 Sep 3, 2017 Resolved No
Groundwater Rule
Treatment technique failure
140 Sep 3, 2017 Resolved No
Groundwater Rule
Treatment technique failure
140 Sep 3, 2017 Resolved No
Groundwater Rule
Treatment technique failure
140 Apr 19, 2015 Resolved No
Groundwater Rule
Treatment technique failure
140 Apr 19, 2015 Resolved No
Groundwater Rule
Treatment technique failure
140 Apr 19, 2015 Resolved No
Groundwater Rule
Treatment technique failure
140 Apr 19, 2015 Resolved No
Groundwater Rule
Treatment technique failure
140 Apr 19, 2015 Resolved No
Groundwater Rule
Treatment technique failure
140 Apr 19, 2015 Resolved No
Groundwater Rule
Treatment technique failure
140 Apr 19, 2015 Resolved No
Groundwater Rule
Treatment technique failure
140 Apr 19, 2015 Resolved No
Groundwater Rule
Treatment technique failure
140 Apr 19, 2015 Resolved No
Groundwater Rule
Treatment technique failure
140 Apr 19, 2015 Resolved No
Groundwater Rule
Treatment technique failure
140 Apr 19, 2015 Resolved No
Groundwater Rule
Treatment technique failure
140 Jan 22, 2015 Resolved No
Groundwater Rule
Treatment technique failure
140 Jan 22, 2015 Resolved No
Groundwater Rule
Treatment technique failure
140 Jan 22, 2015 Resolved No
Groundwater Rule
Treatment technique failure
140 Jan 22, 2015 Resolved No
Groundwater Rule
Treatment technique failure
140 Jan 22, 2015 Resolved No
Groundwater Rule
Treatment technique failure
140 Jan 22, 2015 Resolved No
Groundwater Rule
Treatment technique failure
140 Jan 22, 2015 Resolved No
Groundwater Rule
Treatment technique failure
140 Jan 22, 2015 Resolved No
Groundwater Rule
Treatment technique failure
140 Jan 22, 2015 Resolved No
Groundwater Rule
Treatment technique failure
140 Jan 22, 2015 Resolved No
Groundwater Rule
Treatment technique failure
140 Jan 22, 2015 Resolved No

Monitoring and reporting issues

Since October 2016

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

Issue Start date Status
Consumer Confidence Rule
OTHER
Oct 1, 2025 Resolved
Consumer Confidence Rule
OTHER
Jul 1, 2025 Resolved
Public Notice
OTHER
Aug 16, 2024 Resolved
Groundwater Rule
OTHER
Jul 16, 2024 Resolved
Consumer Confidence Rule
OTHER
Oct 1, 2023 Resolved
Consumer Confidence Rule
OTHER
Jul 1, 2023 Resolved
Public Notice
OTHER
Mar 21, 2021 Resolved
Asbestos
Monitoring and reporting
Jan 1, 2020 Resolved
Consumer Confidence Rule
OTHER
Oct 1, 2019 Resolved
Consumer Confidence Rule
OTHER
Jul 1, 2019 Resolved
Consumer Confidence Rule
OTHER
Oct 1, 2018 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
Oct 1, 2018 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Oct 1, 2018 Resolved
Consumer Confidence Rule
OTHER
Jul 1, 2018 Resolved
Public Notice
OTHER
Jun 15, 2018 Resolved
Public Notice
OTHER
May 9, 2018 Resolved
Public Notice
OTHER
Apr 13, 2018 Resolved
Public Notice
OTHER
Apr 7, 2018 Resolved
Public Notice
OTHER
Apr 7, 2018 Resolved
Public Notice
OTHER
Feb 16, 2018 Resolved
Public Notice
OTHER
Feb 4, 2018 Resolved
Public Notice
OTHER
Dec 30, 2017 Resolved
Public Notice
OTHER
Dec 3, 2017 Resolved
Public Notice
OTHER
Nov 19, 2017 Resolved
Public Notice
OTHER
Oct 31, 2017 Resolved
Public Notice
OTHER
Oct 5, 2017 Resolved
Public Notice
OTHER
Oct 5, 2017 Resolved
Public Notice
OTHER
Oct 4, 2017 Resolved
Consumer Confidence Rule
OTHER
Oct 1, 2017 Resolved
Consumer Confidence Rule
OTHER
Jul 1, 2017 Resolved
Public Notice
OTHER
Jun 18, 2017 Resolved
Revised Total Coliform Rule
Monitoring violation
May 1, 2017 Resolved
Revised Total Coliform Rule
Monitoring violation
Apr 1, 2017 Resolved
Revised Total Coliform Rule
Monitoring violation
Mar 1, 2017 Resolved
Revised Total Coliform Rule
Monitoring violation
Feb 1, 2017 Resolved
Revised Total Coliform Rule
Monitoring violation
Jan 1, 2017 Resolved
Revised Total Coliform Rule
Monitoring violation
Dec 1, 2016 Resolved
Revised Total Coliform Rule
Monitoring violation
Nov 1, 2016 Resolved
Lead and Copper Rule
Monitoring and reporting
Oct 1, 2016 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
Oct 1, 2016 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Oct 1, 2016 Resolved
Revised Total Coliform Rule
Monitoring violation
Oct 1, 2016 Resolved
Revised Total Coliform Rule
OTHER
Jun 2, 2016 Resolved

Full record since 1999

EPA's records for Regina MDWCA go back to 1999. Before October 19, 2016 they list 24 health-based violations (24 resolved) and 34 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 0 1
2000s 2 15
2010 to October 18, 2016 22 18
October 19, 2016 to 2019 6 30
2020s 8 8

Most recent health-based violation before October 19, 2016: Groundwater Rule, began April 2015, Resolved.

Show all 24 health-based violations before October 19, 2016
Contaminant Start date Status
Groundwater Rule
Treatment technique failure
Apr 19, 2015 Resolved
Groundwater Rule
Treatment technique failure
Apr 19, 2015 Resolved
Groundwater Rule
Treatment technique failure
Apr 19, 2015 Resolved
Groundwater Rule
Treatment technique failure
Apr 19, 2015 Resolved
Groundwater Rule
Treatment technique failure
Apr 19, 2015 Resolved
Groundwater Rule
Treatment technique failure
Apr 19, 2015 Resolved
Groundwater Rule
Treatment technique failure
Apr 19, 2015 Resolved
Groundwater Rule
Treatment technique failure
Apr 19, 2015 Resolved
Groundwater Rule
Treatment technique failure
Apr 19, 2015 Resolved
Groundwater Rule
Treatment technique failure
Apr 19, 2015 Resolved
Groundwater Rule
Treatment technique failure
Apr 19, 2015 Resolved
Groundwater Rule
Treatment technique failure
Jan 22, 2015 Resolved
Groundwater Rule
Treatment technique failure
Jan 22, 2015 Resolved
Groundwater Rule
Treatment technique failure
Jan 22, 2015 Resolved
Groundwater Rule
Treatment technique failure
Jan 22, 2015 Resolved
Groundwater Rule
Treatment technique failure
Jan 22, 2015 Resolved
Groundwater Rule
Treatment technique failure
Jan 22, 2015 Resolved
Groundwater Rule
Treatment technique failure
Jan 22, 2015 Resolved
Groundwater Rule
Treatment technique failure
Jan 22, 2015 Resolved
Groundwater Rule
Treatment technique failure
Jan 22, 2015 Resolved
Groundwater Rule
Treatment technique failure
Jan 22, 2015 Resolved
Groundwater Rule
Treatment technique failure
Jan 22, 2015 Resolved
Total Coliform
Contaminant limit exceeded
Sep 1, 2003 Resolved
Total Coliform
Contaminant limit exceeded
Sep 1, 2001 Resolved

What the violations mean

Groundwater Rule

36 incidents

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

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

Where the water comes from

Regina MDWCA draws water from 2 wells and 1 spring.

Annual water quality report

Regina 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.

Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.

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.