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Public water system record

Ranchos De Taos MDWCA

Serves Ranchos de Taos, Taos County, NM · 750 people served

Federal records show 29 health-based violations and 18 monitoring/reporting issues for Ranchos De Taos MDWCA in the last ten years, including an unresolved LEAD AND COPPER RULE REVISIONS violation.

  • NM3507029
  • RANCHOS DE TAOS
  • NM
  • 750 served

System profile

Source water Groundwater
ZIP 87557
EPA system ID NM3507029

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Health-based violations, last 10 years
29
Resolved
17
Unresolved
12
Any acute record
No
Monitoring issues, last 10 years
18

Key facts

  • Ranchos De Taos MDWCA draws water from 3 wells.
  • Record on file since 1996, with 4 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
Groundwater Rule
Treatment technique failure
 140 Aug 28, 2024 Active No
Groundwater Rule
Treatment technique failure
 140 Aug 28, 2024 Resolved No
Groundwater Rule
Treatment technique failure
 140 Aug 28, 2024 Active No
Groundwater Rule
Treatment technique failure
 140 Aug 28, 2024 Resolved No
Groundwater Rule
Treatment technique failure
 140 Aug 28, 2024 Active No
Groundwater Rule
Treatment technique failure
 140 Aug 28, 2024 Active No
Groundwater Rule
Treatment technique failure
 140 Aug 28, 2024 Active No
Groundwater Rule
Treatment technique failure
 140 Aug 28, 2024 Resolved No
Groundwater Rule
Treatment technique failure
 140 Aug 28, 2024 Active No
Groundwater Rule
Treatment technique failure
 140 Aug 28, 2024 Resolved No
Groundwater Rule
Treatment technique failure
 140 Aug 28, 2024 Active No
Groundwater Rule
Treatment technique failure
 140 Aug 28, 2024 Active No
Groundwater Rule
Treatment technique failure
 140 Aug 28, 2024 Resolved No
Groundwater Rule
Treatment technique failure
 140 Aug 28, 2024 Active No
Groundwater Rule
Treatment technique failure
 140 Aug 28, 2024 Active No
Groundwater Rule
Treatment technique failure
 140 Aug 28, 2024 Active No
Groundwater Rule
Treatment technique failure
 140 Aug 28, 2024 Resolved No
Groundwater Rule
Treatment technique failure
 140 Nov 8, 2019 Resolved No
Groundwater Rule
Treatment technique failure
 140 Nov 8, 2019 Resolved No
Groundwater Rule
Treatment technique failure
 140 Apr 15, 2017 Resolved No
Groundwater Rule
Treatment technique failure
 140 Apr 15, 2017 Resolved No
Groundwater Rule
Treatment technique failure
 140 Jan 18, 2017 Resolved No
Groundwater Rule
Treatment technique failure
 140 Jan 18, 2017 Resolved No
Groundwater Rule
Treatment technique failure
 140 Jan 18, 2017 Resolved No
Groundwater Rule
Treatment technique failure
 140 Jan 18, 2017 Resolved No
Groundwater Rule
Treatment technique failure
 140 Jul 31, 2013 Resolved No
Groundwater Rule
Treatment technique failure
 140 Jul 31, 2013 Resolved No
Groundwater Rule
Treatment technique failure
 140 Jul 31, 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
Revised Total Coliform Rule
Monitoring violation
 Dec 1, 2022 Resolved
Public Notice
OTHER
 May 21, 2021 Resolved
Public Notice
OTHER
 Jun 20, 2020 Resolved
Public Notice
OTHER
 Jun 11, 2020 Resolved
Consumer Confidence Rule
OTHER
 Oct 1, 2019 Resolved
Groundwater Rule
OTHER
 Aug 13, 2019 Resolved
Revised Total Coliform Rule
Monitoring violation
 Aug 1, 2019 Resolved
Consumer Confidence Rule
OTHER
 Jul 1, 2019 Resolved
Consumer Confidence Rule
OTHER
 Oct 1, 2018 Resolved
Consumer Confidence Rule
OTHER
 Jul 1, 2018 Resolved
Public Notice
OTHER
 Apr 12, 2018 Resolved
Public Notice
OTHER
 Apr 12, 2018 Resolved
Public Notice
OTHER
 Jul 28, 2017 Resolved
Public Notice
OTHER
 Jul 23, 2017 Resolved
Consumer Confidence Rule
OTHER
 Jul 1, 2017 Resolved
Lead and Copper Rule
Monitoring and reporting
 Oct 1, 2015 Resolved

Full record since 1996

EPA's records for Ranchos De Taos MDWCA go back to 1996. Before October 19, 2016 they list 4 health-based violations (4 resolved) and 30 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 0 4
2000s 1 16
2010 to October 18, 2016 3 10
October 19, 2016 to 2019 8 11
2020s 18 6

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

Show all 4 health-based violations before October 19, 2016
Contaminant Start date Status
Groundwater Rule
Treatment technique failure
 Jul 31, 2013 Resolved
Groundwater Rule
Treatment technique failure
 Jul 31, 2013 Resolved
Groundwater Rule
Treatment technique failure
 Jul 31, 2013 Resolved
DICHLOROMETHANE
Contaminant limit exceeded
Measured 0.009 mg/L, federal limit 0.005 mg/L (1.8 times the limit)
 Jan 1, 2008 Resolved

What the violations mean

Groundwater Rule

28 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

Ranchos De Taos MDWCA draws water from 3 wells.

Annual water quality report

Ranchos De Taos 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.

Certified drinking water labs by state EPA guidance for private wells