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Aneth NTUA

Arizona — Community Water System — PWSID: NN4900220

System Information

PWSIDNN4900220
System NameAneth 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 Served1,481
Service Connections433

Drinking Water Violations (195)

This water system has 195 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
Oct 1, 2024 Dec 31, 2024 Arsenic MR No Yes — 0.010 mg/L — Archived Dec 31, 2024 Arsenic Rule
Oct 1, 2024 Dec 31, 2024 Arsenic MR No Yes — 0.010 mg/L — Archived Dec 31, 2024 Arsenic Rule
Jan 1, 2024 Mar 31, 2024 Arsenic MCL Yes No .0182 MG/L 0.010 mg/L — Archived Mar 31, 2024 Arsenic Rule
Jan 1, 2024 Mar 31, 2024 Arsenic MR No Yes — 0.010 mg/L — Resolved Mar 31, 2024 Arsenic Rule
Oct 1, 2023 Dec 31, 2023 Arsenic MCL Yes No .0182 MG/L 0.010 mg/L — Archived Dec 31, 2023 Arsenic Rule
Jul 1, 2023 Sep 30, 2023 Arsenic MCL Yes No .0468 MG/L 0.010 mg/L — Archived Sep 30, 2023 Arsenic Rule
Apr 1, 2023 Jun 30, 2023 Arsenic MCL Yes No .0493 MG/L 0.010 mg/L — Archived Jun 30, 2023 Arsenic Rule
Jan 1, 2023 Mar 31, 2023 Arsenic MCL Yes No .0705 MG/L 0.010 mg/L — Archived Mar 31, 2023 Arsenic Rule
Oct 1, 2022 Dec 31, 2022 Arsenic MCL Yes No .091 MG/L 0.010 mg/L — Archived Dec 31, 2022 Arsenic Rule
Jul 1, 2022 Sep 30, 2022 Arsenic MCL Yes No .0271 MG/L 0.010 mg/L — Archived Sep 30, 2022 Arsenic Rule
Apr 1, 2022 — Public Notice Other No No — — — Resolved Apr 7, 2022 Public Notice Rule and Revised PN Rule
Apr 1, 2022 Jun 30, 2022 Arsenic MCL Yes No .0114 MG/L 0.010 mg/L — Archived Jun 30, 2022 Arsenic Rule
Jan 1, 2022 Mar 31, 2022 Arsenic MCL Yes No .0177 MG/L 0.010 mg/L — Archived Mar 31, 2022 Arsenic Rule
Jan 1, 2022 Mar 31, 2022 Arsenic MR No Yes — 0.010 mg/L — Resolved Mar 31, 2022 Arsenic Rule
Oct 1, 2021 Dec 31, 2021 Arsenic MCL Yes No .0187 MG/L 0.010 mg/L — Archived Dec 31, 2021 Arsenic Rule
Jul 1, 2021 Sep 30, 2021 Arsenic MCL Yes No .0307 MG/L 0.010 mg/L — Archived Sep 30, 2021 Arsenic Rule
Apr 1, 2021 Jun 30, 2021 Arsenic MCL Yes No .0177 MG/L 0.010 mg/L — Archived Jun 30, 2021 Arsenic Rule
Apr 1, 2021 — Public Notice Other No No — — — Resolved Jul 14, 2021 Public Notice Rule and Revised PN Rule
Jan 1, 2021 Mar 31, 2021 Arsenic MCL Yes No .0214 MG/L 0.010 mg/L — Archived Mar 31, 2021 Arsenic Rule
Oct 1, 2020 Dec 31, 2020 Arsenic MCL Yes No .0274 MG/L 0.010 mg/L — Archived Dec 31, 2020 Arsenic Rule
Jul 1, 2020 Sep 30, 2020 Arsenic MCL Yes No .0246 MG/L 0.010 mg/L — Archived Sep 30, 2020 Arsenic Rule
Apr 1, 2020 Jun 30, 2020 Arsenic MCL Yes No .0249 MG/L 0.010 mg/L — Archived Jun 30, 2020 Arsenic Rule
Apr 1, 2020 — Public Notice Other No No — — — Resolved Apr 3, 2020 Public Notice Rule and Revised PN Rule
Apr 1, 2020 — Public Notice Other No No — — — Resolved Apr 3, 2020 Public Notice Rule and Revised PN 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 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 Mar 31, 2020 Arsenic MCL Yes No .0222 MG/L 0.010 mg/L — Archived Mar 31, 2020 Arsenic 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, 2019 Dec 31, 2019 Arsenic MCL Yes No .0145 MG/L 0.010 mg/L — Archived Dec 31, 2019 Arsenic Rule
Jul 1, 2019 Sep 30, 2019 Arsenic MCL Yes No .0218 MG/L 0.010 mg/L — Archived Sep 30, 2019 Arsenic Rule
Apr 1, 2019 Jun 30, 2019 Arsenic MCL Yes No .0232 MG/L 0.010 mg/L — Archived Jun 30, 2019 Arsenic Rule
Jan 1, 2019 Mar 31, 2019 Arsenic MCL Yes No .0238 MG/L 0.010 mg/L — Archived Mar 31, 2019 Arsenic Rule
Jan 1, 2019 Mar 31, 2019 Arsenic MR No Yes — 0.010 mg/L — Resolved Feb 12, 2019 Arsenic Rule
Jan 1, 2019 Mar 31, 2019 Arsenic MR No Yes — 0.010 mg/L — Resolved Feb 12, 2019 Arsenic Rule
Oct 1, 2018 Dec 31, 2018 Arsenic MCL Yes No .0238 MG/L 0.010 mg/L — Archived Dec 31, 2018 Arsenic Rule
Oct 1, 2018 — Public Notice Other No No — — — Resolved Oct 26, 2018 Public Notice Rule and Revised PN Rule
Jul 1, 2018 Sep 30, 2018 Arsenic MCL Yes No .0205 MG/L 0.010 mg/L — Archived Sep 30, 2018 Arsenic Rule
Apr 1, 2018 Jun 30, 2018 Arsenic MCL Yes No .0235 MG/L 0.010 mg/L — Archived Jun 30, 2018 Arsenic Rule
Jan 1, 2018 Mar 31, 2018 Arsenic MCL Yes No .0265 MG/L 0.010 mg/L — Archived Mar 31, 2018 Arsenic Rule
Oct 1, 2017 Dec 31, 2017 Arsenic MCL Yes No .0208 MG/L 0.010 mg/L — Archived Dec 31, 2017 Arsenic Rule
Jul 1, 2017 Sep 30, 2017 Arsenic MCL Yes No .0138 MG/L 0.010 mg/L — Archived Sep 30, 2017 Arsenic Rule
Jul 1, 2017 Sep 30, 2017 Arsenic MCL Yes No .0138 MG/L 0.010 mg/L — Archived Sep 30, 2017 Arsenic Rule
Apr 1, 2017 Jun 30, 2017 Arsenic MCL Yes No .0152 MG/L 0.010 mg/L — Archived Jun 30, 2017 Arsenic Rule
Jan 1, 2017 Mar 31, 2017 Arsenic MCL Yes No .0119 MG/L 0.010 mg/L — Archived Mar 31, 2017 Arsenic Rule
Jan 1, 2017 — Public Notice Other No No — — — Resolved May 9, 2017 Public Notice Rule and Revised PN Rule
Oct 1, 2016 Dec 31, 2016 Arsenic MCL Yes No .0113 MG/L 0.010 mg/L — Archived Dec 31, 2016 Arsenic Rule
Oct 1, 2016 Dec 31, 2016 Arsenic MCL Yes No .0113 MG/L 0.010 mg/L — Archived Dec 31, 2016 Arsenic Rule

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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