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ARIZONA PROVING GROUND

Arizona — Non-Transient Non-Community — PWSID: AZ0407763

System Information

PWSIDAZ0407763
System NameARIZONA PROVING GROUND
System TypeNon-Transient Non-Community
Water SourceGround Water
Activity StatusActive
Owner TypePrivate
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedDec 1, 2004
Last ReportedNov 17, 2025

Location & Contact

StateArizona
CityWITTMANN
ZIP Code85361
AddressATTN: JOHN MEYERS
OrganizationFORD MOTOR COMPANY
Phone623-975-6400

Population & Service

Population Served75
Service Connections1

Drinking Water Violations (113)

This water system has 113 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
May 1, 2025 — Revised Total Coliform Rule RPT No No — — — Resolved Jun 18, 2025 Revised Total Coliform Rule
May 1, 2025 — Revised Total Coliform Rule RPT No No — — — Resolved Jun 18, 2025 Revised Total Coliform Rule
Dec 20, 2024 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Dec 1, 2024 Dec 31, 2024 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 31, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Dec 1, 2024 Dec 31, 2024 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 31, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Nov 1, 2024 Nov 30, 2024 Chlorine MR No Yes — 4.0 mg/L — Resolved Nov 30, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Nov 1, 2024 Nov 30, 2024 Chlorine MR No Yes — 4.0 mg/L — Resolved Nov 30, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS RPT No No — — — Resolved Dec 12, 2024 Lead and Copper Rule Revisions
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS RPT No No — — — Resolved Dec 12, 2024 Lead and Copper Rule Revisions
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS TT Yes No — — — Resolved Dec 12, 2024 Lead and Copper Rule Revisions
Oct 17, 2024 — LEAD AND COPPER RULE REVISIONS TT Yes No — — — Resolved Dec 12, 2024 Lead and Copper Rule Revisions
Oct 1, 2024 Oct 31, 2024 Chlorine MR No Yes — 4.0 mg/L — Resolved Oct 31, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2024 Oct 31, 2024 Chlorine MR No Yes — 4.0 mg/L — Resolved Oct 31, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2024 — Lead and Copper Rule MR No No — TT — Unaddressed — Lead and Copper Rule
Oct 1, 2024 — Lead and Copper Rule MR No No — TT — Unaddressed — Lead and Copper Rule
Oct 1, 2024 — Lead and Copper Rule MR No No — TT — Unaddressed — Lead and Copper Rule
Apr 1, 2024 Apr 30, 2024 Chlorine MR No Yes — 4.0 mg/L — Resolved Apr 30, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2024 Apr 30, 2024 Chlorine MR No Yes — 4.0 mg/L — Resolved Apr 30, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Jan 31, 2024 Chlorine MR No Yes — 4.0 mg/L — Resolved Jan 31, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Jan 31, 2024 Chlorine MR No Yes — 4.0 mg/L — Resolved Jan 31, 2024 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 Jul 31, 2023 Revised Total Coliform Rule MON No Yes — — — Resolved Jul 31, 2023 Revised Total Coliform Rule
Nov 24, 2022 — Public Notice Other No No — — — Resolved Feb 8, 2023 Public Notice Rule and Revised PN Rule
Nov 24, 2022 — Public Notice Other No No — — — Resolved Feb 8, 2023 Public Notice Rule and Revised PN Rule
Jun 1, 2022 — Revised Total Coliform Rule RPT No No — — — Resolved Jul 25, 2022 Revised Total Coliform Rule
Jun 1, 2022 — Revised Total Coliform Rule RPT No No — — — Resolved Jul 25, 2022 Revised Total Coliform Rule
Oct 29, 2021 — Lead and Copper Rule MR No No — TT — Resolved Dec 30, 2021 Lead and Copper Rule
Oct 29, 2021 — Lead and Copper Rule MR No No — TT — Resolved Dec 30, 2021 Lead and Copper Rule
Oct 1, 2021 Dec 31, 2021 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 31, 2021 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2021 Dec 31, 2021 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 31, 2021 Stage 1 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2020 Aug 31, 2021 TTHM MR No Yes — 0.080 mg/L — Resolved Aug 31, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2020 Aug 31, 2021 TTHM MR No Yes — 0.080 mg/L — Resolved Aug 31, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2020 Aug 31, 2021 TTHM MR No Yes — 0.080 mg/L — Resolved Aug 31, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2020 Aug 31, 2021 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Aug 31, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2020 Aug 31, 2021 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Aug 31, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2020 Aug 31, 2021 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Aug 31, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2019 Sep 30, 2019 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2019 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2019 Sep 30, 2019 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2019 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2019 — Revised Total Coliform Rule RPT No No — — — Resolved Sep 10, 2019 Revised Total Coliform Rule
Jul 1, 2019 — Revised Total Coliform Rule RPT No No — — — Resolved Sep 10, 2019 Revised Total Coliform Rule
Jan 1, 2019 — Lead and Copper Rule MR No No — TT — Resolved May 2, 2019 Lead and Copper Rule
Jul 1, 2018 Jul 31, 2018 Revised Total Coliform Rule MON No Yes — — — Resolved Jul 31, 2018 Revised Total Coliform Rule
Jul 1, 2018 Jul 31, 2018 Revised Total Coliform Rule MON No Yes — — — Resolved Jul 31, 2018 Revised Total Coliform Rule
Dec 1, 2017 — Revised Total Coliform Rule RPT No No — — — Resolved Jan 19, 2018 Revised Total Coliform Rule
Oct 1, 2016 Dec 31, 2016 Chlorine MR No Yes — 4.0 mg/L — Resolved Dec 31, 2016 Stage 1 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2016 Sep 30, 2016 Revised Total Coliform Rule MON No Yes — — — Resolved Sep 30, 2016 Revised Total Coliform Rule
Jul 1, 2016 Sep 30, 2016 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2016 Stage 1 Disinfectants and Disinfection Byproducts Rule
May 1, 2015 May 31, 2015 Coliform (TCR) MR No No — 5% of samples — Resolved May 31, 2015 Total Coliform Rule
May 1, 2015 May 31, 2015 Coliform (TCR) MR No No — 5% of samples — Resolved May 31, 2015 Total Coliform Rule
Aug 1, 2013 Aug 31, 2013 Coliform (TCR) MR No No — 5% of samples — Resolved Aug 31, 2013 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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