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Nageezi NTUA

Arizona — Community Water System — PWSID: NN3500296

System Information

PWSIDNN3500296
System NameNageezi NTUA
System TypeCommunity Water System
Water SourceSurface Water Purchased
Activity StatusActive
Owner TypeNative American
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedFeb 2, 1984
Last ReportedDec 31, 2025

Location & Contact

StateArizona
CityFt Defiance
ZIP Code86504
AddressOffice of Deputy General Manager
OrganizationNavajo Tribal Utility Authority
Phone9287296277

Population & Service

Population Served763
Service Connections223

Drinking Water Violations (217)

This water system has 217 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 Dec 31, 2024 Nitrite MR No Yes — 1 mg/L — Archived Dec 31, 2024 Nitrate Rule
Jan 1, 2024 Dec 31, 2024 Nitrite MR No Yes — 1 mg/L — Archived Dec 31, 2024 Nitrate Rule
Jan 1, 2024 Dec 31, 2024 Nitrate MR No Yes — 10 mg/L — Archived Dec 31, 2024 Nitrate Rule
Jan 1, 2024 Dec 31, 2024 Nitrate MR No Yes — 10 mg/L — Archived Dec 31, 2024 Nitrate 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, 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
Oct 1, 2013 — Stage 2 Disinfectants and Disinfection Byproducts Rule MR No Yes — — — Resolved Sep 30, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2013 — Stage 2 Disinfectants and Disinfection Byproducts Rule MR No Yes — — — Resolved Sep 30, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2013 — Stage 2 Disinfectants and Disinfection Byproducts Rule MR No Yes — — — Resolved Sep 30, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Dec 1, 2012 Dec 31, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 2012 Total Coliform Rule
Dec 1, 2012 Dec 31, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 2012 Total Coliform Rule
Nov 1, 2012 Nov 30, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Nov 30, 2012 Total Coliform Rule
Jan 1, 2011 Dec 31, 2013 1,2-DIBROMO-3-CHLOROPROPANE MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Mercury MR No Yes — 0.002 mg/L — Resolved Dec 31, 2013 Inorganic 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 ETHYLENE DIBROMIDE MR No Yes — 0.00005 mg/L — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 1,2-DIBROMO-3-CHLOROPROPANE MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 1,2-DIBROMO-3-CHLOROPROPANE MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2013 Synthetic Organic Chemicals
Jan 1, 2011 Dec 31, 2013 1,2-DIBROMO-3-CHLOROPROPANE MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2013 Synthetic Organic Chemicals
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 ETHYLENE DIBROMIDE MR No Yes — 0.00005 mg/L — Resolved Dec 31, 2013 Synthetic Organic Chemicals
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 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Dec 31, 2013 Volatile Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Dec 31, 2013 Volatile Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Dec 31, 2013 Volatile Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Dec 31, 2013 Volatile Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Carbon tetrachloride MR No Yes — 0.005 mg/L — Resolved Dec 31, 2013 Volatile Organic Chemicals
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, 2013 Trichloroethylene MR No Yes — 0.005 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 Cadmium MR No Yes — 0.005 mg/L — Resolved Dec 31, 2013 Inorganic 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 Chromium MR No Yes — 0.1 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 Tetrachloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2013 Volatile Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Trichloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2013 Volatile Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Trichloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2013 Volatile Organic 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 Carbon tetrachloride MR No Yes — 0.005 mg/L — Resolved Dec 31, 2013 Volatile Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Carbon tetrachloride MR No Yes — 0.005 mg/L — Resolved Dec 31, 2013 Volatile Organic Chemicals
Jan 1, 2011 Dec 31, 2013 Mercury MR No Yes — 0.002 mg/L — Resolved Dec 31, 2013 Inorganic Chemicals
Jan 1, 2011 Dec 31, 2013 Mercury MR No Yes — 0.002 mg/L — Resolved Dec 31, 2013 Inorganic Chemicals
Jan 1, 2011 Dec 31, 2013 Mercury MR No Yes — 0.002 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 Selenium MR No Yes — 0.05 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

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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