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Public water system record

Sile MDWCA

Serves an area of Sandoval County, NM that includes Peña Blanca · 154 people served

Federal records show 20 health-based violations and 32 monitoring/reporting issues for Sile MDWCA in the last ten years, including an unresolved LEAD AND COPPER RULE REVISIONS violation.

  • NM3543723
  • PENA BLANCA
  • NM
  • 154 served

System profile

Source water Groundwater
ZIP 87041
EPA system ID NM3543723

Verify this system on EPA ECHO →

Health-based violations, last 10 years
20
Resolved
19
Unresolved
1
Any acute record
No
Monitoring issues, last 10 years
32

Key facts

  • Sile MDWCA draws water from 1 well.
  • Most recent formal enforcement: compliance order (no penalty) by New Mexico, May 2024.
  • Record on file since 1992, with 15 health-based violations before October 19, 2016.

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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
LEAD AND COPPER RULE REVISIONS
Treatment technique failure
 350 Oct 17, 2024 Active No
Revised Total Coliform Rule
Treatment technique failure
 110 Oct 27, 2023 Resolved No
Groundwater Rule
Treatment technique failure
 140 Jan 15, 2020 Resolved No
Groundwater Rule
Treatment technique failure
 140 Jan 15, 2020 Resolved No
Groundwater Rule
Treatment technique failure
 140 Jan 15, 2020 Resolved No
Groundwater Rule
Treatment technique failure
 140 Jan 15, 2020 Resolved No
Groundwater Rule
Treatment technique failure
 140 Jan 15, 2020 Resolved No
Groundwater Rule
Treatment technique failure
 140 Jan 15, 2020 Resolved No
Groundwater Rule
Treatment technique failure
 140 Jan 15, 2020 Resolved No
Groundwater Rule
Treatment technique failure
 140 Nov 13, 2013 Resolved No
Groundwater Rule
Treatment technique failure
 140 Nov 13, 2013 Resolved No
Groundwater Rule
Treatment technique failure
 140 Nov 13, 2013 Resolved No
Groundwater Rule
Treatment technique failure
 140 Nov 13, 2013 Resolved No
Groundwater Rule
Treatment technique failure
 140 Nov 13, 2013 Resolved No
Groundwater Rule
Treatment technique failure
 140 Aug 18, 2013 Resolved No
Groundwater Rule
Treatment technique failure
 140 Aug 18, 2013 Resolved No
Groundwater Rule
Treatment technique failure
 140 Aug 18, 2013 Resolved No
Groundwater Rule
Treatment technique failure
 140 Aug 18, 2013 Resolved No
Groundwater Rule
Treatment technique failure
 140 Aug 18, 2013 Resolved No
Groundwater Rule
Treatment technique failure
 140 Aug 18, 2013 Resolved No

Monitoring and reporting issues

Since October 2016

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

Issue Start date Status
Lead and Copper Rule
Monitoring and reporting
 Oct 1, 2025 Active
LEAD AND COPPER RULE REVISIONS
RPT
 Oct 17, 2024 Active
Consumer Confidence Rule
OTHER
 Oct 1, 2024 Resolved
E. coli
Monitoring and reporting
 Sep 28, 2023 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
 Oct 1, 2022 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Oct 1, 2022 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
 Oct 1, 2021 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Oct 1, 2021 Resolved
Consumer Confidence Rule
OTHER
 Jul 1, 2021 Resolved
Public Notice
OTHER
 Oct 22, 2020 Resolved
Consumer Confidence Rule
OTHER
 Oct 1, 2020 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
 Oct 1, 2020 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Oct 1, 2020 Resolved
Consumer Confidence Rule
OTHER
 Jul 1, 2020 Resolved
Public Notice
OTHER
 Apr 15, 2020 Resolved
Public Notice
OTHER
 Feb 15, 2020 Resolved
Public Notice
OTHER
 Dec 20, 2019 Resolved
Groundwater Rule
OTHER
 Oct 20, 2019 Resolved
Consumer Confidence Rule
OTHER
 Oct 1, 2019 Resolved
Consumer Confidence Rule
OTHER
 Jul 1, 2019 Resolved
Lead and Copper Rule
Monitoring and reporting
 Oct 1, 2018 Resolved
Public Notice
OTHER
 Nov 19, 2017 Resolved
Public Notice
OTHER
 Nov 18, 2017 Resolved
Public Notice
OTHER
 Oct 12, 2017 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
 Oct 1, 2017 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Oct 1, 2017 Resolved
Public Notice
OTHER
 Sep 7, 2017 Resolved
Public Notice
OTHER
 Jun 18, 2017 Resolved
Public Notice
OTHER
 Oct 14, 2016 Resolved
Revised Total Coliform Rule
Monitoring violation
 Oct 1, 2016 Resolved
Public Notice
OTHER
 Sep 1, 2016 Resolved
Revised Total Coliform Rule
OTHER
 Jun 2, 2016 Resolved

Full record since 1992

EPA's records for Sile MDWCA go back to 1992. Before October 19, 2016 they list 15 health-based violations (15 resolved) and 52 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 1 3
2000s 2 22
2010 to October 18, 2016 12 27
October 19, 2016 to 2019 0 12
2020s 9 16

Most recent health-based violation before October 19, 2016: Groundwater Rule, began November 2013, Resolved.

Show all 15 health-based violations before October 19, 2016
Contaminant Start date Status
Groundwater Rule
Treatment technique failure
 Nov 13, 2013 Resolved
Groundwater Rule
Treatment technique failure
 Nov 13, 2013 Resolved
Groundwater Rule
Treatment technique failure
 Nov 13, 2013 Resolved
Groundwater Rule
Treatment technique failure
 Nov 13, 2013 Resolved
Groundwater Rule
Treatment technique failure
 Nov 13, 2013 Resolved
Groundwater Rule
Treatment technique failure
 Aug 18, 2013 Resolved
Groundwater Rule
Treatment technique failure
 Aug 18, 2013 Resolved
Groundwater Rule
Treatment technique failure
 Aug 18, 2013 Resolved
Groundwater Rule
Treatment technique failure
 Aug 18, 2013 Resolved
Groundwater Rule
Treatment technique failure
 Aug 18, 2013 Resolved
Groundwater Rule
Treatment technique failure
 Aug 18, 2013 Resolved
Total Coliform
Contaminant limit exceeded
 Jul 1, 2013 Resolved
Total Coliform
Contaminant limit exceeded
 Feb 1, 2007 Resolved
Total Coliform
Contaminant limit exceeded
 Jan 1, 2007 Resolved
Total Coliform (acute)
Contaminant limit exceeded
 Oct 1, 1992 Resolved

Enforcement actions

New Mexico regulators took 2 formal enforcement actions against Sile MDWCA and issued 1 boil water order between 1992 and 2024. The most recent was a compliance order (no penalty) in May 2024.

Date By Action Violations covered
May 2, 2024 New Mexico Compliance order (no penalty) 8 violations (2 health-based): Total Trihalomethanes (TTHMs), Revised Total Coliform Rule, Haloacetic Acids (HAA5), Groundwater Rule
Sep 10, 2007 New Mexico Compliance order (no penalty) 7 violations (2 health-based): Total Coliform
Oct 27, 1992 New Mexico Boil water order 1 violation (1 health-based): Total Coliform

What the violations mean

Groundwater Rule

18 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.

LEAD AND COPPER RULE REVISIONS

1 incident

The system did not complete a treatment step or action that the LEAD AND COPPER RULE REVISIONS requires (a treatment technique violation).

The utility had to notify customers about this violation.

Revised Total Coliform Rule

1 incident

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

Where the water comes from

Sile MDWCA draws water from 1 well.

Annual water quality report

Sile 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 Sile 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.

Certified drinking water labs by state EPA guidance for private wells