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GILBERT, TOWN OF

Arizona — Community Water System — PWSID: AZ0407092

System Information

PWSIDAZ0407092
System NameGILBERT, TOWN OF
System TypeCommunity Water System
Water SourceSurface Water
Activity StatusActive
Owner TypeLocal
EPA Region09
Serves SchoolNo
WholesalerNo
First ReportedOct 5, 1979
Last ReportedNov 17, 2025

Location & Contact

StateArizona
CityGILBERT
ZIP Code85234
AddressATTN REBECCA HAMEL
OrganizationTOWN OF GILBERT N WATER TREATMENT PLANT
Phone480-503-6387

Population & Service

Population Served247,600
Service Connections84,000

Drinking Water Violations (1,214)

This water system has 1,214 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 — Revised Total Coliform Rule RPT No No — — — Resolved Aug 29, 2025 Revised Total Coliform Rule
Jul 1, 2025 Sep 30, 2025 Arsenic MR No Yes — 0.010 mg/L — Archived Sep 30, 2025 Arsenic Rule
Jul 1, 2025 — Revised Total Coliform Rule RPT No No — — — Resolved Aug 29, 2025 Revised Total Coliform Rule
Apr 1, 2025 Jun 30, 2025 Nitrate MR No Yes — 10 mg/L — Resolved Jun 30, 2025 Nitrate Rule
Apr 1, 2025 Jun 30, 2025 Nitrate MR No Yes — 10 mg/L — Resolved Jun 30, 2025 Nitrate Rule
Feb 1, 2025 Feb 28, 2025 Surface Water Treatment Rule MR No No — — — Resolved Feb 28, 2025 Surface Water Treatment Rule
Feb 1, 2025 Feb 28, 2025 Surface Water Treatment Rule MR No No — — — Resolved Feb 28, 2025 Surface Water Treatment Rule
Nov 1, 2024 Nov 30, 2024 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Nov 30, 2024 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Nov 1, 2024 Nov 30, 2024 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Nov 30, 2024 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Nov 1, 2024 Nov 30, 2024 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Nov 30, 2024 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Nov 1, 2024 Nov 30, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Nov 30, 2024 Surface Water Treatment Rule
Nov 1, 2024 Nov 30, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Nov 30, 2024 Surface Water Treatment Rule
Nov 1, 2024 Nov 30, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Nov 30, 2024 Surface Water Treatment Rule
Oct 1, 2024 Dec 31, 2024 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2024 Nitrate Rule
Oct 1, 2024 Dec 31, 2024 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2024 Nitrate Rule
Oct 1, 2024 Dec 31, 2024 Arsenic MR No Yes — 0.010 mg/L — Resolved Dec 31, 2024 Arsenic Rule
Oct 1, 2024 Dec 31, 2024 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2024 Nitrate Rule
Oct 1, 2024 Dec 31, 2024 Arsenic MR No Yes — 0.010 mg/L — Resolved Dec 31, 2024 Arsenic Rule
Oct 1, 2024 Dec 31, 2024 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2024 Nitrate Rule
Oct 1, 2024 Dec 31, 2024 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2024 Nitrate Rule
Oct 1, 2024 Dec 31, 2024 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2024 Nitrate Rule
Oct 1, 2024 Dec 31, 2024 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2024 Nitrate Rule
Oct 1, 2024 Dec 31, 2024 Arsenic MR No Yes — 0.010 mg/L — Resolved Dec 31, 2024 Arsenic Rule
Oct 1, 2024 Dec 31, 2024 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2024 Nitrate Rule
Oct 1, 2024 Dec 31, 2024 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2024 Nitrate Rule
Oct 1, 2024 Dec 31, 2024 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2024 Nitrate Rule
Oct 1, 2024 Dec 31, 2024 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2024 Nitrate Rule
Oct 1, 2024 Dec 31, 2024 Arsenic MR No Yes — 0.010 mg/L — Resolved Dec 31, 2024 Arsenic Rule
Oct 1, 2024 Oct 31, 2024 CARBON, TOTAL MR No Yes — TT — Resolved Oct 31, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2024 Dec 31, 2024 Arsenic MR No Yes — 0.010 mg/L — Resolved Dec 31, 2024 Arsenic Rule
Oct 1, 2024 Dec 31, 2024 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2024 Nitrate Rule
Oct 1, 2024 Dec 31, 2024 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2024 Nitrate Rule
Oct 1, 2024 Dec 31, 2024 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2024 Nitrate Rule
Oct 1, 2024 Dec 31, 2024 Arsenic MR No Yes — 0.010 mg/L — Resolved Dec 31, 2024 Arsenic Rule
Oct 1, 2024 Dec 31, 2024 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2024 Nitrate Rule
Oct 1, 2024 Dec 31, 2024 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2024 Nitrate Rule
Oct 1, 2024 Dec 31, 2024 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2024 Nitrate Rule
Oct 1, 2024 Dec 31, 2024 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2024 Nitrate Rule
Oct 1, 2024 Dec 31, 2024 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2024 Nitrate Rule
Oct 1, 2024 Oct 31, 2024 CARBON, TOTAL MR No Yes — TT — Resolved Oct 31, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2024 Dec 31, 2024 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2024 Nitrate Rule
Oct 1, 2024 Dec 31, 2024 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2024 Nitrate Rule
Jul 1, 2024 — Revised Total Coliform Rule RPT No No — — — Resolved Sep 9, 2024 Revised Total Coliform Rule
Jul 1, 2024 Jul 31, 2024 CARBON, TOTAL MR No Yes — TT — Resolved Jul 31, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 — Revised Total Coliform Rule RPT No No — — — Resolved Sep 9, 2024 Revised Total Coliform Rule
Jul 1, 2024 Jul 31, 2024 CARBON, TOTAL MR No Yes — TT — Resolved Jul 31, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2024 Apr 30, 2024 CARBON, TOTAL MR No Yes — TT — Resolved Apr 30, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2024 Apr 30, 2024 CARBON, TOTAL MR No Yes — TT — Resolved Apr 30, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2023 Sep 30, 2023 TTHM MR No Yes — 0.080 mg/L — Resolved Sep 30, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2023 Sep 30, 2023 Arsenic MR No Yes — 0.010 mg/L — Resolved Sep 30, 2023 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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