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Casamero Lake-Smith Lake NTUA

Arizona — Community Water System — PWSID: NN3500256

System Information

PWSIDNN3500256
System NameCasamero Lake-Smith Lake NTUA
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeNative American
EPA Region09
Serves SchoolNo
WholesalerYes
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 Served906
Service Connections265

Drinking Water Violations (199)

This water system has 199 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
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 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 Endothall MR No Yes — 0.1 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 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 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 Diquat MR No Yes — 0.02 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 Glyphosate MR No Yes — 0.7 mg/L — Resolved Dec 31, 2014 Synthetic Organic Chemicals
Jul 1, 2014 — Public Notice Other No No — — — Resolved Jul 1, 2015 Public Notice Rule and Revised PN Rule
Jul 1, 2014 Sep 30, 2014 2,3,7,8-TCDD MR No Yes — 0.00000003 mg/L — Resolved Sep 30, 2014 Synthetic Organic Chemicals
Jul 1, 2014 Jul 31, 2014 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Jul 31, 2014 Total Coliform Rule
Jul 1, 2014 Sep 30, 2014 Diquat MR No Yes — 0.02 mg/L — Resolved Sep 30, 2014 Synthetic Organic Chemicals
Jul 1, 2014 Sep 30, 2014 Diquat MR No Yes — 0.02 mg/L — Resolved Sep 30, 2014 Synthetic Organic Chemicals
Jul 1, 2014 — Public Notice Other No No — — — Resolved Jul 1, 2015 Public Notice Rule and Revised PN Rule
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
Jul 1, 2014 Sep 30, 2014 Glyphosate MR No Yes — 0.7 mg/L — Resolved Sep 30, 2014 Synthetic Organic Chemicals
Jul 1, 2014 Jul 31, 2014 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Jul 31, 2014 Total Coliform Rule
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 2,3,7,8-TCDD MR No Yes — 0.00000003 mg/L — Resolved Sep 30, 2014 Synthetic Organic Chemicals
Jul 1, 2014 Sep 30, 2014 2,3,7,8-TCDD MR No Yes — 0.00000003 mg/L — Resolved Sep 30, 2014 Synthetic Organic Chemicals
Jul 1, 2014 Sep 30, 2014 Diquat MR No Yes — 0.02 mg/L — Resolved Sep 30, 2014 Synthetic Organic Chemicals
Jul 1, 2014 Jul 31, 2014 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Jul 31, 2014 Total Coliform Rule
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 Endothall MR No Yes — 0.1 mg/L — Resolved Sep 30, 2014 Synthetic Organic Chemicals
Apr 1, 2014 Jun 30, 2014 Endothall MR No Yes — 0.1 mg/L — Resolved Jun 30, 2014 Synthetic Organic Chemicals
Apr 1, 2014 Jun 30, 2014 2,3,7,8-TCDD MR No Yes — 0.00000003 mg/L — Resolved Jun 30, 2014 Synthetic Organic Chemicals
Apr 1, 2014 Jun 30, 2014 Endothall MR No Yes — 0.1 mg/L — Resolved Jun 30, 2014 Synthetic Organic Chemicals
Apr 1, 2014 Jun 30, 2014 Endothall MR No Yes — 0.1 mg/L — Resolved Jun 30, 2014 Synthetic Organic Chemicals
Apr 1, 2014 Jun 30, 2014 Diquat MR No Yes — 0.02 mg/L — Resolved Jun 30, 2014 Synthetic Organic Chemicals
Apr 1, 2014 Jun 30, 2014 Glyphosate MR No Yes — 0.7 mg/L — Resolved Jun 30, 2014 Synthetic Organic Chemicals
Apr 1, 2014 Jun 30, 2014 2,3,7,8-TCDD MR No Yes — 0.00000003 mg/L — Resolved Jun 30, 2014 Synthetic Organic Chemicals
Apr 1, 2014 Jun 30, 2014 2,3,7,8-TCDD MR No Yes — 0.00000003 mg/L — Resolved Jun 30, 2014 Synthetic Organic Chemicals
Apr 1, 2014 Jun 30, 2014 Diquat MR No Yes — 0.02 mg/L — Resolved Jun 30, 2014 Synthetic Organic Chemicals
Apr 1, 2014 Jun 30, 2014 Diquat MR No Yes — 0.02 mg/L — Resolved Jun 30, 2014 Synthetic Organic Chemicals
Apr 1, 2014 Jun 30, 2014 Glyphosate MR No Yes — 0.7 mg/L — Resolved Jun 30, 2014 Synthetic Organic Chemicals
Apr 1, 2014 Jun 30, 2014 Glyphosate MR No Yes — 0.7 mg/L — Resolved Jun 30, 2014 Synthetic Organic Chemicals
Mar 1, 2014 Mar 31, 2014 Coliform (TCR) MR No No — 5% of samples — Resolved Mar 31, 2014 Total Coliform Rule
Mar 1, 2014 Mar 31, 2014 Coliform (TCR) MR No No — 5% of samples — Resolved Mar 31, 2014 Total Coliform Rule
Mar 1, 2014 Mar 31, 2014 Coliform (TCR) MR No No — 5% of samples — Resolved Mar 31, 2014 Total Coliform Rule
Jan 1, 2014 Mar 31, 2014 Glyphosate MR No Yes — 0.7 mg/L — Resolved Mar 31, 2014 Synthetic Organic Chemicals
Jan 1, 2014 Mar 31, 2014 Diquat MR No Yes — 0.02 mg/L — Resolved Mar 31, 2014 Synthetic Organic Chemicals
Jan 1, 2014 Mar 31, 2014 Glyphosate MR No Yes — 0.7 mg/L — Resolved Mar 31, 2014 Synthetic Organic Chemicals
Jan 1, 2014 Mar 31, 2014 2,3,7,8-TCDD MR No Yes — 0.00000003 mg/L — Resolved Mar 31, 2014 Synthetic Organic Chemicals
Jan 1, 2014 Mar 31, 2014 Glyphosate MR No Yes — 0.7 mg/L — Resolved Mar 31, 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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