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White Mesa NTUA

Arizona — Community Water System — PWSID: NN0400209

System Information

PWSIDNN0400209
System NameWhite Mesa NTUA
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeNative American
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedSep 28, 2018
Last ReportedDec 31, 2025

Location & Contact

StateArizona
CityFort Defiance
ZIP Code86504-0170
AddressPO Box 170
OrganizationNavajo Tribal Utility Authority
Phone9287296239

Population & Service

Population Served496
Service Connections145

Drinking Water Violations (96)

This water system has 96 violations recorded in the EPA SDWIS database.

Begin Date End Date Contaminant Category Health-Based Major Measured Federal MCL State MCL Status Return to Compliance Rule
Jan 1, 2024 — Lead and Copper Rule MR No No — TT — Unaddressed — Lead and Copper Rule
Jan 1, 2021 — Lead and Copper Rule MR No No — TT — Resolved Jun 8, 2022 Lead and Copper Rule
Jan 1, 2021 — Lead and Copper Rule MR No No — TT — Resolved Jun 8, 2022 Lead and Copper Rule
Jan 1, 2021 — Lead and Copper Rule MR No No — TT — Resolved Jun 8, 2022 Lead and Copper Rule
Jan 1, 2020 Dec 31, 2020 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2020 Dec 31, 2020 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2020 Dec 31, 2020 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2020 Dec 31, 2020 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2020 Dec 31, 2020 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2020 Dec 31, 2020 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2017 — Lead and Copper Rule MR No No — TT — Resolved Jun 13, 2018 Lead and Copper Rule
Jan 1, 2017 — Lead and Copper Rule MR No No — TT — Resolved Jun 13, 2018 Lead and Copper Rule
Jan 1, 2017 — Lead and Copper Rule MR No No — TT — Resolved Jun 13, 2018 Lead and Copper Rule
Oct 1, 2015 Dec 31, 2015 TTHM MR No Yes — 0.080 mg/L — Resolved Nov 14, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2015 Dec 31, 2015 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Nov 14, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2015 Jun 30, 2015 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jun 30, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2015 Jun 30, 2015 TTHM MR No Yes — 0.080 mg/L — Resolved Jun 30, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2015 Mar 31, 2015 TTHM MR No Yes — 0.080 mg/L — Resolved Mar 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2015 — Lead and Copper Rule MR No No — TT — Resolved May 20, 2016 Lead and Copper Rule
Jan 1, 2015 Mar 31, 2015 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Mar 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2014 Dec 31, 2014 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2014 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2014 Dec 31, 2014 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2014 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2014 Sep 30, 2014 TTHM MR No Yes — 0.080 mg/L — Resolved Sep 30, 2014 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2014 Sep 30, 2014 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Sep 30, 2014 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2014 — Lead and Copper Rule MR No No — TT — Resolved May 20, 2016 Lead and Copper Rule
Jan 1, 2014 — Lead and Copper Rule MR No No — TT — Resolved May 20, 2016 Lead and Copper Rule
Jul 1, 2013 — Lead and Copper Rule MR No No — TT — Resolved May 20, 2016 Lead and Copper Rule
Jan 1, 2013 Dec 31, 2013 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2013 Nitrate Rule
Jan 1, 2013 — Lead and Copper Rule MR No No — TT — Resolved May 20, 2016 Lead and Copper Rule
Jan 1, 2012 — Lead and Copper Rule MR No No — TT — Resolved May 20, 2016 Lead and Copper Rule
Jan 1, 2012 Dec 31, 2012 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2012 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2012 Dec 31, 2012 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2012 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2011 Dec 31, 2013 ETHYLENE DIBROMIDE MR No Yes — 0.00005 mg/L — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Dec 31, 2013 Volatile Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Beryllium, Total MR No Yes — 0.004 mg/L — Resolved Dec 31, 2013 Inorganic Chemicals
Jan 1, 2011 Dec 31, 2013 CHLOROBENZENE MR No Yes — 0.1 mg/L — Resolved Dec 31, 2013 Volatile Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Cadmium MR No Yes — 0.005 mg/L — Resolved Dec 31, 2013 Inorganic Chemicals
Jan 1, 2011 Dec 31, 2013 trans-1,2-Dichloroethylene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2013 Volatile Organic Chemicals
Jan 1, 2011 Dec 31, 2013 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2013 Volatile Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Antimony, Total MR No Yes — 0.006 mg/L — Resolved Dec 31, 2013 Inorganic Chemicals
Jan 1, 2011 Dec 31, 2013 Selenium MR No Yes — 0.05 mg/L — Resolved Dec 31, 2013 Inorganic Chemicals
Jan 1, 2011 Dec 31, 2013 cis-1,2-Dichloroethylene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2013 Volatile Organic Chemicals
Jan 1, 2011 Dec 31, 2013 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2013 Volatile Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Thallium, Total MR No Yes — 0.002 mg/L — Resolved Dec 31, 2013 Inorganic Chemicals
Jan 1, 2011 Dec 31, 2013 Fluoride MR No Yes — 4.0 mg/L — Resolved Dec 31, 2013 Inorganic Chemicals
Jan 1, 2011 Dec 31, 2013 CYANIDE MR No Yes — 0.2 mg/L — Resolved Dec 31, 2013 Inorganic Chemicals
Jan 1, 2011 Dec 31, 2013 Chromium MR No Yes — 0.1 mg/L — Resolved Dec 31, 2013 Inorganic Chemicals
Jan 1, 2011 Dec 31, 2013 Arsenic MR No Yes — 0.010 mg/L — Resolved Dec 31, 2013 Arsenic Rule
Jan 1, 2011 Dec 31, 2013 Tetrachloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2013 Volatile Organic Chemicals
Jan 1, 2011 Dec 31, 2011 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2011 Stage 1 Disinfectants and Disinfection Byproducts Rule

About This Water System

Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.

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