Public water system record

Standing Rock NTUA

On record as serving McKinley County, NM · Serves 739 people

Federal records show no health-based violations and 5 monitoring/reporting issues for Standing Rock NTUA in the last ten years. At least one of these issues remains unresolved.

  • NN3503029
  • FT DEFIANCE
  • AZ
  • 739 served

System profile

Source water Groundwater
ZIP 86504
EPA system ID NN3503029

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
5

Key facts

  • Standing Rock NTUA draws water from 1 well.
  • Record on file since 2002, with 0 health-based violations before October 19, 2016.

Check whether Standing Rock NTUA 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.

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
E. coli
Monitoring and reporting
Aug 1, 2023 Resolved
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 Active
Stage 2 Disinfection Byproducts Rule
Monitoring and reporting
Oct 1, 2013 Active

Full record since 2002

EPA's records for Standing Rock NTUA go back to 2002. Before October 19, 2016 they list no health-based violations and 73 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
2000s 0 67
2010 to October 18, 2016 0 6
2020s 0 3

Where the water comes from

Standing Rock NTUA draws water from 1 well. 1 smaller public system such as schools, businesses or campgrounds buys water from Standing Rock NTUA.

Annual water quality report

Standing Rock 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.