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Leupp-Birdsprings-Tolani Lake NTUA

Arizona — Community Water System — PWSID: NN0403033

System Information

PWSIDNN0403033
System NameLeupp-Birdsprings-Tolani Lake 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 Served2,100
Service Connections614

Drinking Water Violations (56)

This water system has 56 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, 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
Jul 1, 2017 — Revised Total Coliform Rule TT Yes No — — — Resolved Aug 9, 2017 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 — — — Unaddressed — Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2013 — Stage 2 Disinfectants and Disinfection Byproducts Rule MR No Yes — — — Unaddressed — 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
Jul 1, 2012 Jul 31, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Jul 31, 2012 Total Coliform Rule
Oct 1, 2010 Dec 31, 2010 Thallium, Total MCL Yes No .05 MG/L 0.002 mg/L — Resolved Dec 31, 2010 Inorganic Chemicals
Oct 1, 2010 Dec 31, 2010 Antimony, Total MCL Yes No .025 MG/L 0.006 mg/L — Resolved Dec 31, 2010 Inorganic Chemicals
Oct 1, 2010 Dec 31, 2010 Antimony, Total MCL Yes No .025 MG/L 0.006 mg/L — Resolved Dec 31, 2010 Inorganic Chemicals
Oct 1, 2010 Dec 31, 2010 Thallium, Total MCL Yes No .05 MG/L 0.002 mg/L — Resolved Dec 31, 2010 Inorganic Chemicals
Jan 1, 2010 Dec 31, 2010 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2010 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2010 Dec 31, 2010 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2010 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2008 Jul 31, 2008 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Jul 31, 2008 Total Coliform Rule
Jul 1, 2008 Jul 31, 2008 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Jul 31, 2008 Total Coliform Rule
Jul 1, 2008 Jul 31, 2008 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Jul 31, 2008 Total Coliform Rule
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 Total Polychlorinated Biphenyls (PCB) MR No Yes — 0.0005 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 Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Total Polychlorinated Biphenyls (PCB) MR No Yes — 0.0005 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 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 Diquat MR No Yes — 0.02 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 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 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 Mercury MR No Yes — 0.002 mg/L — Resolved Dec 31, 2010 Inorganic 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 Diquat MR No Yes — 0.02 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2004 Dec 31, 2004 Gross Alpha, Excl. Radon and U MR No No — 15 pCi/L — Resolved Dec 31, 2004 Radionuclides and Revised Rad Rule
Jan 1, 2004 Dec 31, 2004 Gross Alpha, Excl. Radon and U MR No No — 15 pCi/L — Resolved Dec 31, 2004 Radionuclides and Revised Rad Rule
Feb 1, 2003 Feb 28, 2003 Coliform (TCR) MR No No — 5% of samples — Resolved Feb 28, 2003 Total Coliform Rule
Feb 1, 2003 Feb 28, 2003 Coliform (TCR) MR No Yes — 5% of samples — Archived Feb 28, 2003 Total Coliform Rule
Jun 30, 1996 Jul 29, 1996 Coliform (TCR) MR No Yes — 5% of samples — Archived Jul 29, 1996 Total Coliform Rule
Jun 30, 1996 Jul 29, 1996 Coliform (TCR) MR No No — 5% of samples — Resolved Jul 29, 1996 Total Coliform Rule
— — — No No — — — — — —
— — — No No — — — — — —
— — — No No — — — — — —

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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