Public water system record

Lower Colonias MDWCA

Serves an area of San Miguel County, NM that includes Pecos · 40 people served

Federal records show 8 health-based violations and 4 monitoring/reporting issues for Lower Colonias MDWCA in the last ten years, including an unresolved Groundwater Rule violation.

  • NM3501225
  • RIBERA
  • NM
  • 40 served

System profile

Source water Groundwater
ZIP 87560
EPA system ID NM3501225

Verify this system on EPA ECHO →

Health-based violations, last 10 years
8
Resolved
2
Unresolved
6
Any acute record
No
Monitoring issues, last 10 years
4

Key facts

  • Lower Colonias MDWCA draws water from 1 well.
  • Record on file since 2004, with 1 health-based violation 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
Groundwater Rule
Treatment technique failure
140 Jul 31, 2025 Active No
Groundwater Rule
Treatment technique failure
140 Jul 31, 2025 Active No
Groundwater Rule
Treatment technique failure
140 Jul 31, 2025 Active No
Groundwater Rule
Treatment technique failure
140 Jul 31, 2025 Active No
LEAD AND COPPER RULE REVISIONS
Treatment technique failure
350 Oct 17, 2024 Active No
Groundwater Rule
Treatment technique failure
140 Oct 3, 2018 Resolved No
Groundwater Rule
Treatment technique failure
140 Jul 8, 2018 Resolved No
Groundwater Rule
Treatment technique failure
140 Mar 3, 2013 Active 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 REVISIONS
RPT
Oct 17, 2024 Active
Lead and Copper Rule
Monitoring and reporting
Oct 1, 2024 Resolved
Public Notice
OTHER
Feb 14, 2019 Resolved
Public Notice
OTHER
Oct 6, 2018 Resolved

Full record since 2004

EPA's records for Lower Colonias MDWCA go back to 2004. Before October 19, 2016 they list 1 health-based violation (1 not resolved) and 11 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
2000s 0 8
2010 to October 18, 2016 1 3
October 19, 2016 to 2019 2 2
2020s 5 2

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

Show the health-based violation before October 19, 2016
Contaminant Start date Status
Groundwater Rule
Treatment technique failure
Mar 3, 2013 Active

What the violations mean

Groundwater Rule

7 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.

Where the water comes from

Lower Colonias MDWCA draws water from 1 well.

Annual water quality report

Lower Colonias 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 Lower Colonias 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.