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White Post Mission NTUA

Arizona — Community Water System — PWSID: NN0400286

System Information

PWSIDNN0400286
System NameWhite Post Mission NTUA
System TypeCommunity Water System
Water SourceGround Water
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 Served185
Service Connections54

Drinking Water Violations (1,132)

This water system has 1,132 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, 2016 Dec 31, 2016 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2016 Nitrate Rule
Jan 1, 2016 Dec 31, 2016 Nitrite MR No Yes — 1 mg/L — Resolved Dec 31, 2016 Nitrate Rule
Jan 1, 2016 Dec 31, 2016 Nitrite MR No Yes — 1 mg/L — Resolved Dec 31, 2016 Nitrate Rule
Jan 1, 2016 Dec 31, 2016 Nitrite MR No Yes — 1 mg/L — Resolved Dec 31, 2016 Nitrate Rule
Jan 1, 2016 Dec 31, 2016 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2016 Nitrate Rule
Jan 1, 2016 Dec 31, 2016 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2016 Nitrate Rule
Jan 1, 2015 Dec 31, 2015 Nitrite MR No Yes — 1 mg/L — Resolved Dec 31, 2015 Nitrate Rule
Jan 1, 2015 Dec 31, 2015 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2015 Nitrate Rule
Jan 1, 2015 Dec 31, 2015 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2015 Nitrate Rule
Jan 1, 2015 Dec 31, 2015 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2015 Nitrate Rule
Jan 1, 2015 Dec 31, 2015 Nitrite MR No Yes — 1 mg/L — Resolved Dec 31, 2015 Nitrate Rule
Jan 1, 2015 Dec 31, 2015 Nitrite MR No Yes — 1 mg/L — Resolved Dec 31, 2015 Nitrate Rule
Oct 1, 2014 Dec 31, 2014 Diquat MR No Yes — 0.02 mg/L — Resolved Dec 31, 2014 Synthetic Organic Chemicals
Oct 1, 2014 Dec 31, 2014 Diquat MR No Yes — 0.02 mg/L — Resolved Dec 31, 2014 Synthetic Organic Chemicals
Oct 1, 2014 Dec 31, 2014 Endothall MR No Yes — 0.1 mg/L — Resolved Dec 31, 2014 Synthetic Organic Chemicals
Oct 1, 2014 Dec 31, 2014 Glyphosate MR No Yes — 0.7 mg/L — Resolved Dec 31, 2014 Synthetic Organic Chemicals
Oct 1, 2014 Dec 31, 2014 2,3,7,8-TCDD MR No Yes — 0.00000003 mg/L — Resolved Dec 31, 2014 Synthetic Organic Chemicals
Oct 1, 2014 Dec 31, 2014 Endothall MR No Yes — 0.1 mg/L — Resolved Dec 31, 2014 Synthetic Organic Chemicals
Oct 1, 2014 Dec 31, 2014 Diquat MR No Yes — 0.02 mg/L — Resolved Dec 31, 2014 Synthetic Organic Chemicals
Oct 1, 2014 Dec 31, 2014 2,3,7,8-TCDD MR No Yes — 0.00000003 mg/L — Resolved Dec 31, 2014 Synthetic Organic Chemicals
Oct 1, 2014 Dec 31, 2014 Endothall MR No Yes — 0.1 mg/L — Resolved Dec 31, 2014 Synthetic Organic Chemicals
Oct 1, 2014 Dec 31, 2014 Glyphosate MR No Yes — 0.7 mg/L — Resolved Dec 31, 2014 Synthetic Organic Chemicals
Oct 1, 2014 Dec 31, 2014 2,3,7,8-TCDD MR No Yes — 0.00000003 mg/L — Resolved Dec 31, 2014 Synthetic Organic Chemicals
Oct 1, 2014 Dec 31, 2014 Glyphosate MR No Yes — 0.7 mg/L — Resolved Dec 31, 2014 Synthetic Organic Chemicals
Jul 1, 2014 Sep 30, 2014 LASSO MR No Yes — — — Resolved Feb 3, 2014 Synthetic Organic Chemicals
Jul 1, 2014 Sep 30, 2014 2,4-D MR No Yes — 0.07 mg/L — Resolved Feb 3, 2014 Synthetic Organic Chemicals
Jul 1, 2014 Sep 30, 2014 Dinoseb MR No Yes — 0.007 mg/L — Resolved Feb 3, 2014 Synthetic Organic Chemicals
Jul 1, 2014 Sep 30, 2014 OXAMYL MR No Yes — 0.2 mg/L — Resolved Feb 3, 2014 Synthetic Organic Chemicals
Jul 1, 2014 Sep 30, 2014 LASSO MR No Yes — — — Resolved Feb 3, 2014 Synthetic Organic Chemicals
Jul 1, 2014 Sep 30, 2014 Picloram MR No Yes — 0.5 mg/L — Resolved Feb 3, 2014 Synthetic Organic Chemicals
Jul 1, 2014 Sep 30, 2014 Atrazine MR No Yes — 0.003 mg/L — Resolved Feb 3, 2014 Synthetic Organic Chemicals
Jul 1, 2014 Sep 30, 2014 Endothall MR No Yes — 0.1 mg/L — Resolved Sep 30, 2014 Synthetic Organic Chemicals
Jul 1, 2014 Sep 30, 2014 LASSO MR No Yes — — — Resolved Feb 3, 2014 Synthetic Organic Chemicals
Jul 1, 2014 Sep 30, 2014 Benzo(a)pyrene MR No Yes — 0.0002 mg/L — Resolved Feb 3, 2014 Synthetic Organic Chemicals
Jul 1, 2014 Sep 30, 2014 Endothall MR No Yes — 0.1 mg/L — Resolved Sep 30, 2014 Synthetic Organic Chemicals
Jul 1, 2014 Sep 30, 2014 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Feb 3, 2014 Synthetic Organic Chemicals
Jul 1, 2014 Sep 30, 2014 2,4-D MR No Yes — 0.07 mg/L — Resolved Feb 3, 2014 Synthetic Organic Chemicals
Jul 1, 2014 Sep 30, 2014 Benzo(a)pyrene MR No Yes — 0.0002 mg/L — Resolved Feb 3, 2014 Synthetic Organic Chemicals
Jul 1, 2014 Sep 30, 2014 Dinoseb MR No Yes — 0.007 mg/L — Resolved Feb 3, 2014 Synthetic Organic Chemicals
Jul 1, 2014 Sep 30, 2014 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Feb 3, 2014 Synthetic Organic Chemicals
Jul 1, 2014 Sep 30, 2014 Picloram MR No Yes — 0.5 mg/L — Resolved Feb 3, 2014 Synthetic Organic Chemicals
Jul 1, 2014 Sep 30, 2014 Glyphosate MR No Yes — 0.7 mg/L — Resolved Sep 30, 2014 Synthetic Organic Chemicals
Jul 1, 2014 Sep 30, 2014 Atrazine MR No Yes — 0.003 mg/L — Resolved Feb 3, 2014 Synthetic Organic Chemicals
Jul 1, 2014 Sep 30, 2014 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Feb 3, 2014 Synthetic Organic Chemicals
Jul 1, 2014 Sep 30, 2014 BHC-GAMMA MR No Yes — 0.0002 mg/L — Resolved Feb 3, 2014 Synthetic Organic Chemicals
Jul 1, 2014 Sep 30, 2014 Dinoseb MR No Yes — 0.007 mg/L — Resolved Feb 3, 2014 Synthetic Organic Chemicals
Jul 1, 2014 Sep 30, 2014 BHC-GAMMA MR No Yes — 0.0002 mg/L — Resolved Feb 3, 2014 Synthetic Organic Chemicals
Jul 1, 2014 Sep 30, 2014 Atrazine MR No Yes — 0.003 mg/L — Resolved Feb 3, 2014 Synthetic Organic Chemicals
Jul 1, 2014 Sep 30, 2014 Glyphosate MR No Yes — 0.7 mg/L — Resolved Sep 30, 2014 Synthetic Organic Chemicals
Jul 1, 2014 Sep 30, 2014 Glyphosate MR No Yes — 0.7 mg/L — Resolved Sep 30, 2014 Synthetic Organic 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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