Public water system record

Tohatchi-Mexican Springs-Twin Lakes NTUA

On record as serving Tohatchi, McKinley County, NM · Serves 1,669 people

Federal records show no health-based violations and 6 monitoring/reporting issues for Tohatchi-Mexican Springs-Twin Lakes NTUA in the last ten years.

  • NN3500237
  • FT DEFIANCE
  • AZ
  • 1,669 served

System profile

Source water Groundwater
ZIP 86504
EPA system ID NN3500237

Verify this system on EPA ECHO →

Health-based violations, last 10 years
0
Resolved
0
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
6

Key facts

  • Tohatchi-Mexican Springs-Twin Lakes NTUA draws water from 1 well.
  • Record on file since 2002, 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.

None since October 2016.

Monitoring and reporting issues

Since October 2016

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

Issue Start date Status
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Jan 1, 2020 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
Jan 1, 2020 Resolved
Revised Total Coliform Rule
OTHER
Apr 1, 2016 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Jan 1, 2016 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
Jan 1, 2016 Resolved
Stage 2 Disinfection Byproducts Rule
Monitoring and reporting
Oct 1, 2013 Resolved

Full record since 2002

EPA's records for Tohatchi-Mexican Springs-Twin Lakes NTUA go back to 2002. Before October 19, 2016 they list 1 health-based violation (1 resolved) and 38 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
2000s 0 23
2010 to October 18, 2016 1 15
2020s 0 2

Most recent health-based violation before October 19, 2016: Total Coliform, began July 2014, Resolved.

Show the health-based violation before October 19, 2016
Contaminant Start date Status
Total Coliform
Contaminant limit exceeded
Jul 1, 2014 Resolved

Where the water comes from

Tohatchi-Mexican Springs-Twin Lakes NTUA draws water from 1 well.

Annual water quality report

Tohatchi-Mexican Springs-Twin Lakes NTUA 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 EPA Region 9.