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St Michael Indian School

Arizona — Non-Transient Non-Community — PWSID: NN0400380

System Information

PWSIDNN0400380
System NameSt Michael Indian School
System TypeNon-Transient Non-Community
Water SourceGround Water
Activity StatusActive
Owner TypePrivate
EPA Region09
Serves SchoolYes
WholesalerNo
First ReportedFeb 2, 1984
Last ReportedDec 31, 2025

Location & Contact

StateArizona
CitySt Michaels
ZIP Code86511
AddressPO Box 650
OrganizationSt Michael Indian School
Phone5059795590

Population & Service

Population Served585
Service Connections38

Drinking Water Violations (1,201)

This water system has 1,201 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
Sep 1, 2025 Sep 30, 2025 Revised Total Coliform Rule MON No Yes — — — Archived Sep 30, 2025 Revised Total Coliform Rule
Aug 1, 2025 Aug 31, 2025 Revised Total Coliform Rule MON No Yes — — — Archived Aug 31, 2025 Revised Total Coliform Rule
Jul 1, 2025 — Revised Total Coliform Rule RPT No No — — — Unaddressed — Revised Total Coliform Rule
Jun 1, 2025 — Revised Total Coliform Rule RPT No No — — — Resolved Jul 16, 2025 Revised Total Coliform Rule
May 1, 2025 May 31, 2025 Revised Total Coliform Rule MON No Yes — — — Archived May 31, 2025 Revised Total Coliform Rule
May 1, 2025 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Apr 1, 2025 — Revised Total Coliform Rule RPT No No — — — Resolved Jul 16, 2025 Revised Total Coliform Rule
Mar 1, 2025 Mar 31, 2025 Revised Total Coliform Rule MON No Yes — — — Resolved Mar 31, 2025 Revised Total Coliform Rule
Mar 1, 2025 Mar 31, 2025 Revised Total Coliform Rule MON No Yes — — — Resolved Mar 31, 2025 Revised Total Coliform Rule
Mar 1, 2025 Mar 31, 2025 Revised Total Coliform Rule MON No Yes — — — Resolved Mar 31, 2025 Revised Total Coliform Rule
Mar 1, 2025 — Public Notice Other No No — — — Resolved Oct 31, 2025 Public Notice Rule and Revised PN Rule
Feb 1, 2025 — Public Notice Other No No — — — Resolved Oct 31, 2025 Public Notice Rule and Revised PN Rule
Feb 1, 2025 Feb 28, 2025 Revised Total Coliform Rule MON No Yes — — — Resolved Feb 28, 2025 Revised Total Coliform Rule
Feb 1, 2025 Feb 28, 2025 Revised Total Coliform Rule MON No Yes — — — Resolved Feb 28, 2025 Revised Total Coliform Rule
Feb 1, 2025 Feb 28, 2025 Revised Total Coliform Rule MON No Yes — — — Resolved Feb 28, 2025 Revised Total Coliform Rule
Jan 1, 2025 Jan 31, 2025 Revised Total Coliform Rule MON No Yes — — — Resolved Jan 31, 2025 Revised Total Coliform Rule
Jan 1, 2025 Jan 31, 2025 Revised Total Coliform Rule MON No Yes — — — Resolved Jan 31, 2025 Revised Total Coliform Rule
Jan 1, 2025 Jan 31, 2025 Revised Total Coliform Rule MON No Yes — — — Resolved Jan 31, 2025 Revised Total Coliform Rule
Jan 1, 2025 — Public Notice Other No No — — — Resolved Oct 31, 2025 Public Notice Rule and Revised PN Rule
Dec 1, 2024 Dec 31, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 8, 2024 Revised Total Coliform Rule
Dec 1, 2024 Dec 31, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 8, 2024 Revised Total Coliform Rule
Dec 1, 2024 — Public Notice Other No No — — — Resolved Sep 8, 2024 Public Notice Rule and Revised PN Rule
Dec 1, 2024 — Public Notice Other No No — — — Resolved Sep 8, 2024 Public Notice Rule and Revised PN Rule
Dec 1, 2024 Dec 31, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 8, 2024 Revised Total Coliform Rule
Nov 1, 2024 Nov 30, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Nov 30, 2024 Revised Total Coliform Rule
Nov 1, 2024 Nov 30, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Nov 30, 2024 Revised Total Coliform Rule
Nov 1, 2024 — Public Notice Other No No — — — Resolved Oct 31, 2025 Public Notice Rule and Revised PN Rule
Nov 1, 2024 Nov 30, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Nov 30, 2024 Revised Total Coliform Rule
Nov 1, 2024 — Public Notice Other No No — — — Resolved Oct 31, 2025 Public Notice Rule and Revised PN Rule
Sep 1, 2024 Sep 30, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 30, 2024 Revised Total Coliform Rule
Sep 1, 2024 — Public Notice Other No No — — — Resolved Oct 31, 2025 Public Notice Rule and Revised PN Rule
Sep 1, 2024 — Public Notice Other No No — — — Resolved Oct 31, 2025 Public Notice Rule and Revised PN Rule
Aug 1, 2024 — Revised Total Coliform Rule RPT No No — — — Resolved Nov 3, 2024 Revised Total Coliform Rule
Jul 1, 2024 — Revised Total Coliform Rule RPT No No — — — Resolved Nov 8, 2024 Revised Total Coliform Rule
Jun 1, 2024 — Public Notice Other No No — — — Resolved Oct 31, 2025 Public Notice Rule and Revised PN Rule
Jun 1, 2024 — Public Notice Other No No — — — Resolved Oct 31, 2025 Public Notice Rule and Revised PN Rule
Jun 1, 2024 Jun 30, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Jun 30, 2024 Revised Total Coliform Rule
May 1, 2024 — Public Notice Other No No — — — Resolved Oct 31, 2025 Public Notice Rule and Revised PN Rule
May 1, 2024 — Public Notice Other No No — — — Resolved Oct 31, 2025 Public Notice Rule and Revised PN Rule
May 1, 2024 May 31, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved May 31, 2024 Revised Total Coliform Rule
Apr 1, 2024 Apr 30, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Apr 30, 2024 Revised Total Coliform Rule
Apr 1, 2024 — Public Notice Other No No — — — Resolved Oct 31, 2025 Public Notice Rule and Revised PN Rule
Apr 1, 2024 — Public Notice Other No No — — — Resolved Oct 31, 2025 Public Notice Rule and Revised PN Rule
Feb 1, 2024 — Revised Total Coliform Rule RPT No No — — — Resolved Apr 12, 2024 Revised Total Coliform Rule
Jan 1, 2024 Dec 31, 2024 Nitrite MR No Yes — 1 mg/L — Archived Dec 31, 2024 Nitrate Rule
Jan 1, 2024 — Public Notice Other No No — — — Resolved Sep 8, 2024 Public Notice Rule and Revised PN Rule
Jan 1, 2024 Dec 31, 2024 Nitrate MR No Yes — 10 mg/L — Archived Dec 31, 2024 Nitrate Rule
Jan 1, 2024 Dec 31, 2024 Nitrate MR No Yes — 10 mg/L — Archived Dec 31, 2024 Nitrate Rule
Jan 1, 2024 — Public Notice Other No No — — — Resolved Sep 8, 2024 Public Notice Rule and Revised PN Rule
Jan 1, 2024 Jan 31, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Jan 31, 2024 Revised Total Coliform 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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