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Baca-Haystack NTUA

Arizona — Community Water System — PWSID: NN3500254

System Information

PWSIDNN3500254
System NameBaca-Haystack 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 Served376
Service Connections110

Drinking Water Violations (143)

This water system has 143 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
Apr 1, 2016 — Revised Total Coliform Rule Other No No — — — Unaddressed — Revised Total Coliform Rule
Apr 1, 2016 — Revised Total Coliform Rule Other No No — — — Unaddressed — Revised Total Coliform Rule
Oct 1, 2013 — Stage 2 Disinfectants and Disinfection Byproducts Rule MR No Yes — — — Resolved Jul 16, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2013 — Stage 2 Disinfectants and Disinfection Byproducts Rule MR No Yes — — — Resolved Jul 16, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2013 — Stage 2 Disinfectants and Disinfection Byproducts Rule MR No Yes — — — Resolved Jul 16, 2019 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 Fluoride MR No Yes — 4.0 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 Fluoride MR No Yes — 4.0 mg/L — Resolved Dec 31, 2013 Inorganic Chemicals
Jun 1, 2010 Jun 30, 2010 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 2010 Total Coliform Rule
Jan 1, 2010 Dec 31, 2010 Nitrite MR No Yes — 1 mg/L — Resolved Dec 31, 2010 Nitrate Rule
Jul 1, 2009 — Consumer Confidence Rule Other No No — — — Resolved Jan 25, 2011 Consumer Confidence Rule
Jan 1, 2009 Jan 31, 2009 Coliform (TCR) MR No No — 5% of samples — Resolved Jan 31, 2009 Total Coliform Rule
Dec 1, 2008 Dec 31, 2008 Coliform (TCR) MR No No — 5% of samples — Resolved Dec 31, 2008 Total Coliform Rule
Nov 1, 2008 Nov 30, 2008 Coliform (TCR) MR No No — 5% of samples — Resolved Nov 30, 2008 Total Coliform Rule
Oct 1, 2008 Oct 31, 2008 Coliform (TCR) MR No No — 5% of samples — Resolved Oct 31, 2008 Total Coliform Rule
Jan 1, 2008 Dec 31, 2010 Mercury MR No Yes — 0.002 mg/L — Resolved Dec 31, 2010 Inorganic Chemicals
Jan 1, 2008 Dec 31, 2010 1,2-DIBROMO-3-CHLOROPROPANE MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 ETHYLENE DIBROMIDE MR No Yes — 0.00005 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 ETHYLENE DIBROMIDE MR No Yes — 0.00005 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 ETHYLENE DIBROMIDE MR No Yes — 0.00005 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 1,2-DIBROMO-3-CHLOROPROPANE MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 1,2-DIBROMO-3-CHLOROPROPANE MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Diquat MR No Yes — 0.02 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Diquat MR No Yes — 0.02 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Diquat MR No Yes — 0.02 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Total Polychlorinated Biphenyls (PCB) MR No Yes — 0.0005 mg/L — Resolved Mar 15, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 2,3,7,8-TCDD MR No Yes — 0.00000003 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 2,3,7,8-TCDD MR No Yes — 0.00000003 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 2,3,7,8-TCDD MR No Yes — 0.00000003 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Total Polychlorinated Biphenyls (PCB) MR No Yes — 0.0005 mg/L — Resolved Mar 15, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 CYANIDE MR No Yes — 0.2 mg/L — Resolved Dec 31, 2010 Inorganic Chemicals
Jan 1, 2008 Dec 31, 2010 Glyphosate MR No Yes — 0.7 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Glyphosate MR No Yes — 0.7 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Glyphosate MR No Yes — 0.7 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Endothall MR No Yes — 0.1 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Endothall MR No Yes — 0.1 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Endothall MR No Yes — 0.1 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 CYANIDE MR No Yes — 0.2 mg/L — Resolved Dec 31, 2010 Inorganic Chemicals
Jan 1, 2008 Dec 31, 2010 Barium MR No Yes — 2 mg/L — Resolved Dec 31, 2010 Inorganic Chemicals
Jan 1, 2008 Dec 31, 2010 Total Polychlorinated Biphenyls (PCB) MR No Yes — 0.0005 mg/L — Resolved Mar 15, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Barium MR No Yes — 2 mg/L — Resolved Dec 31, 2010 Inorganic Chemicals
Jan 1, 2008 Dec 31, 2010 CYANIDE MR No Yes — 0.2 mg/L — Resolved Dec 31, 2010 Inorganic Chemicals
Jan 1, 2008 Dec 31, 2010 Mercury MR No Yes — 0.002 mg/L — Resolved Dec 31, 2010 Inorganic Chemicals
Jan 1, 2008 Dec 31, 2010 Mercury MR No Yes — 0.002 mg/L — Resolved Dec 31, 2010 Inorganic Chemicals
Jan 1, 2008 Dec 31, 2010 Barium MR No Yes — 2 mg/L — Resolved Dec 31, 2010 Inorganic Chemicals
Jan 1, 2005 Dec 31, 2007 Barium MR No Yes — 2 mg/L — Resolved Dec 31, 2007 Inorganic Chemicals
Jan 1, 2005 Dec 31, 2007 Cadmium MR No Yes — 0.005 mg/L — Resolved Dec 31, 2007 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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