Drinking Water Compliance OS

Tuba City, 09

Tuba City Boarding School - BIA Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of July 25, 2018. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.

If you are a resident looking for your current water provider, see water systems in 09.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace EPA Region 9’s official records. Always confirm current status with EPA Region 9 before making decisions based on this information.

System facts

System ID (PWSID)
090433001
System type
Community Water System
Population served
2,040
Service connections
143
Ownership
federal government
Water source
groundwater (wells)

Violation history

  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2005 – March 16, 2007

    Resolved
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    October 1, 2004 – October 31, 2004

    Resolved
  • Monitoring, Routine Minor (TCR)

    Coliform (TCR)

    April 1, 2004 – April 30, 2004

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    September 1, 2002 – September 30, 2002

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2002 – August 4, 2003

    Resolved
  • Monitoring, Regular

    2,3,7,8-TCDD

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    CYANIDE

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    2,4-D

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Fluoride

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Dalapon

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    OXAMYL

    January 1, 2001 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Picloram

    January 1, 2001 – December 31, 2001

    Resolved

Resolved addressed and confirmed by the state

Enforcement actions

Last known contact on file (system is inactive)

Tuba City Boarding School - BIA

9282832330

Tuba City, AZ 86045