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Hopi High School - BIA

Arizona — Community Water System — PWSID: 090400395

System Information

PWSID090400395
System NameHopi High School - BIA
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeFederal
EPA Region09
Serves SchoolYes
WholesalerNo
First ReportedFeb 2, 1984
Last ReportedDec 31, 2025

Location & Contact

StateArizona
CityKeams Canyon
ZIP Code86043
AddressP.O. Box 337
OrganizationHopi High School
Phone9287381440

Population & Service

Population Served1,150
Service Connections58

Drinking Water Violations (316)

This water system has 316 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
Jul 1, 2025 Sep 1, 2025 Arsenic MR No Yes — 0.010 mg/L — Archived Sep 1, 2025 Arsenic Rule
Jul 1, 2025 Sep 30, 2025 Arsenic MR No Yes — 0.010 mg/L — Archived Sep 30, 2025 Arsenic Rule
Jul 1, 2025 Sep 30, 2025 Fluoride MCL Yes No 4.9 MG/L 4.0 mg/L — Archived Sep 30, 2025 Inorganic Chemicals
Apr 1, 2025 Jun 30, 2025 Arsenic MR No Yes — 0.010 mg/L — Archived Jun 30, 2025 Arsenic Rule
Apr 1, 2025 Jun 30, 2025 Fluoride MR No Yes — 4.0 mg/L — Archived Jun 30, 2025 Inorganic Chemicals
Apr 1, 2025 Jun 30, 2025 Arsenic MR No Yes — 0.010 mg/L — Archived Jun 30, 2025 Arsenic Rule
Feb 1, 2025 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Feb 1, 2025 Feb 28, 2025 Revised Total Coliform Rule MON No Yes — — — Archived Feb 28, 2025 Revised Total Coliform Rule
Feb 1, 2025 Feb 28, 2025 Revised Total Coliform Rule MON No Yes — — — Archived Feb 28, 2025 Revised Total Coliform Rule
Jan 1, 2025 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Jan 1, 2025 Mar 31, 2025 Fluoride MR No Yes — 4.0 mg/L — Archived Mar 31, 2025 Inorganic Chemicals
Jan 1, 2025 Mar 31, 2025 Arsenic MR No Yes — 0.010 mg/L — Archived Mar 31, 2025 Arsenic Rule
Jan 1, 2025 Mar 31, 2025 Chlorine MR No Yes — 4.0 mg/L — Archived Mar 31, 2025 Stage 1 Disinfectants and Disinfection Byproducts Rule
Nov 16, 2024 — LEAD AND COPPER RULE REVISIONS RPT No No — — — Unaddressed — Lead and Copper Rule Revisions
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS TT Yes No — — — Unaddressed — Lead and Copper Rule Revisions
Oct 1, 2024 Dec 31, 2024 Fluoride MR No Yes — 4.0 mg/L — Archived Dec 31, 2024 Inorganic Chemicals
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 Fluoride MR No Yes — 4.0 mg/L — Archived Dec 31, 2024 Inorganic Chemicals
Apr 1, 2024 Jun 30, 2024 Fluoride MR No Yes — 4.0 mg/L — Archived Jun 30, 2024 Inorganic Chemicals
Jan 1, 2024 Dec 31, 2024 Nitrate MR No Yes — 10 mg/L — Archived Dec 31, 2024 Nitrate Rule
Oct 1, 2023 Dec 31, 2023 Chlorine MR No Yes — 4.0 mg/L — Archived Dec 31, 2023 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2023 Dec 31, 2023 Fluoride MR No Yes — 4.0 mg/L — Archived Dec 31, 2023 Inorganic Chemicals
Aug 1, 2023 — Revised Total Coliform Rule RPT No No — — — Resolved Sep 14, 2023 Revised Total Coliform Rule
Jul 1, 2023 Sep 30, 2023 Chlorine MR No Yes — 4.0 mg/L — Resolved Aug 2, 2023 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2023 Jul 31, 2023 Revised Total Coliform Rule MON No Yes — — — Resolved Jul 31, 2023 Revised Total Coliform Rule
Jul 1, 2023 Sep 30, 2023 Arsenic MCL Yes No .014 MG/L 0.010 mg/L — Archived Sep 30, 2023 Arsenic Rule
Jul 1, 2023 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Jul 1, 2023 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Jul 1, 2023 Sep 30, 2023 Fluoride MR No Yes — 4.0 mg/L — Archived Sep 30, 2023 Inorganic Chemicals
Jun 1, 2023 Jun 30, 2023 Revised Total Coliform Rule MON No Yes — — — Archived Jun 30, 2023 Revised Total Coliform Rule
Jun 1, 2023 — Public Notice Other No No — — — Resolved Oct 27, 2022 Public Notice Rule and Revised PN Rule
May 1, 2023 — Revised Total Coliform Rule RPT No No — — — Resolved Jun 20, 2023 Revised Total Coliform Rule
Apr 1, 2023 Jun 30, 2023 Fluoride MR No Yes — 4.0 mg/L — Archived Jun 30, 2023 Inorganic Chemicals
Apr 1, 2023 Jun 30, 2023 Chlorine MR No Yes — 4.0 mg/L — Archived Jun 30, 2023 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2023 — Revised Total Coliform Rule RPT No No — — — Resolved Jun 20, 2023 Revised Total Coliform Rule
Apr 1, 2023 Jun 30, 2023 Arsenic MR No Yes — 0.010 mg/L — Archived Jun 30, 2023 Arsenic Rule
Mar 1, 2023 — Revised Total Coliform Rule RPT No No — — — Resolved Jun 20, 2023 Revised Total Coliform Rule
Mar 1, 2023 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Jan 1, 2023 Dec 31, 2023 Nitrate MR No Yes — 10 mg/L — Archived Dec 31, 2023 Nitrate Rule
Jan 1, 2023 Dec 31, 2023 TTHM MR No Yes — 0.080 mg/L — Archived Dec 31, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2023 Mar 31, 2023 Fluoride MR No Yes — 4.0 mg/L — Archived Mar 31, 2023 Inorganic Chemicals
Jan 1, 2023 — Lead and Copper Rule MR No No — TT — Unaddressed — Lead and Copper Rule
Jan 1, 2023 Dec 31, 2023 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Archived Dec 31, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2022 Dec 31, 2022 Fluoride MR No Yes — 4.0 mg/L — Archived Dec 31, 2022 Inorganic Chemicals
Sep 1, 2022 Sep 30, 2022 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 30, 2022 Revised Total Coliform Rule
Aug 1, 2022 — E. COLI MR No Yes — — — Unaddressed — Ground Water Rule
Jul 1, 2022 — E. COLI MR No Yes — — — Unaddressed — Ground Water Rule
Jul 1, 2022 Sep 30, 2022 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2022 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2022 Jun 30, 2022 Fluoride MR No Yes — 4.0 mg/L — Resolved Jun 30, 2022 Inorganic Chemicals
Jan 1, 2022 Dec 31, 2022 TTHM MR No Yes — 0.080 mg/L — Archived Dec 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts 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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