Drinking Water Compliance OS

GILBERT, AZ · Maricopa County

GILBERT, TOWN OF Water System

Current status

No open violations on record as of July 4, 2026.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace Arizona’s official records. Always confirm current status with Arizona before making decisions based on this information.

System facts

System ID (PWSID)
AZ0407092
System type
Community Water System
Population served
247,600
Service connections
84,000
Ownership
local government
Water source
surface water (rivers, lakes, or reservoirs)

Violation history

  • Monitoring of Treatment (SWTR-Filter)

    —

    Surface Water Treatment Rule

    December 1, 2025 – December 31, 2025

    Archived

  • Monitoring, Turbidity (Enhanced SWTR)

    —

    Interim Enhanced Surface Water Treatment Rule

    September 1, 2025 – September 30, 2025

    Archived

  • Monitoring, Regular

    —

    Toluene

    April 1, 2022 – June 30, 2022

    Archived

  • Monitoring, Regular

    —

    DICHLOROMETHANE

    April 1, 2022 – June 30, 2022

    Resolved

  • Monitoring, Regular

    —

    p-Dichlorobenzene

    April 1, 2022 – June 30, 2022

    Resolved

  • Monitoring, Regular

    —

    Vinyl chloride

    April 1, 2022 – June 30, 2022

    Resolved

  • Monitoring, Regular

    —

    trans-1,2-Dichloroethylene

    April 1, 2022 – June 30, 2022

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloroethane

    April 1, 2022 – June 30, 2022

    Resolved

  • Monitoring, Regular

    —

    Tetrachloroethylene

    April 1, 2022 – June 30, 2022

    Resolved

  • Monitoring, Regular

    —

    Ethylbenzene

    April 1, 2022 – June 30, 2022

    Resolved

  • Monitoring, Regular

    —

    p-Dichlorobenzene

    April 1, 2022 – June 30, 2022

    Archived

  • Monitoring, Regular

    —

    1,2-Dichloropropane

    April 1, 2022 – June 30, 2022

    Archived

  • Monitoring, Regular

    —

    Tetrachloroethylene

    April 1, 2022 – June 30, 2022

    Archived

  • Monitoring, Turbidity (Enhanced SWTR)

    —

    Interim Enhanced Surface Water Treatment Rule

    June 1, 2021 – June 30, 2021

    Resolved

  • Monitoring, Regular

    —

    1,2-DIBROMO-3-CHLOROPROPANE

    January 1, 2021 – December 31, 2023

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloroethane

    January 1, 2021 – December 31, 2021

    Resolved

  • Monitoring, Regular

    —

    1,1,2-Trichloroethane

    January 1, 2021 – December 31, 2021

    Resolved

  • Monitoring, Regular

    —

    Ethylbenzene

    January 1, 2021 – December 31, 2021

    Resolved

  • Monitoring, Regular

    —

    Nickel

    January 1, 2021 – December 31, 2021

    Resolved

  • Monitoring, Regular

    —

    Ethylbenzene

    January 1, 2021 – December 31, 2021

    Resolved

  • Monitoring, Regular

    —

    Pentachlorophenol

    January 1, 2021 – December 31, 2023

    Resolved

  • Monitoring, Regular

    —

    Fluoride

    January 1, 2021 – December 31, 2021

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) phthalate

    October 1, 2020 – December 31, 2020

    Archived

  • Monitoring, Regular

    —

    Arsenic

    October 1, 2020 – December 31, 2020

    Archived

  • Monitoring and Reporting (DBP)

    —

    Total Haloacetic Acids (HAA5)

    July 1, 2019 – September 30, 2019

    Resolved

  • Monitoring, Regular

    —

    ETHYLENE DIBROMIDE

    January 1, 2019 – December 31, 2021

    Resolved

  • Monitoring, Regular

    —

    Hexachlorocyclopentadiene

    January 1, 2019 – December 31, 2021

    Resolved

  • Monitoring, Regular

    —

    Endothall

    January 1, 2019 – December 31, 2021

    Resolved

  • Monitoring, Regular

    —

    Glyphosate

    January 1, 2019 – December 31, 2021

    Resolved

  • Monitoring, Regular

    —

    Heptachlor

    January 1, 2019 – December 31, 2021

    Resolved

  • Monitoring, Regular

    —

    Heptachlor epoxide

    January 1, 2019 – December 31, 2021

    Resolved

  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    July 1, 2017 – September 30, 2017

    Resolved

  • Monitoring, Regular

    —

    1,1,1-Trichloroethane

    January 1, 2013 – December 31, 2013

    Resolved

  • Monitoring, Regular

    —

    1,1-Dichloroethylene

    January 1, 2013 – December 31, 2013

    Resolved

  • Monitoring, Regular

    —

    Tetrachloroethylene

    January 1, 2013 – December 31, 2013

    Resolved

  • Monitoring, Regular

    —

    Carbon tetrachloride

    January 1, 2013 – December 31, 2013

    Resolved

  • Monitoring, Regular

    —

    Styrene

    January 1, 2013 – December 31, 2013

    Resolved

  • Monitoring, Regular

    —

    CHLOROBENZENE

    January 1, 2013 – December 31, 2013

    Resolved

  • Monitoring, Regular

    —

    1,1,2-Trichloroethane

    January 1, 2013 – December 31, 2013

    Resolved

  • Monitoring, Regular

    —

    Vinyl chloride

    January 1, 2013 – December 31, 2013

    Resolved

  • Monitoring, Regular

    —

    Tetrachloroethylene

    January 1, 2010 – December 31, 2015

    Resolved

  • Monitoring, Regular

    —

    Combined Radium (-226 and -228)

    January 1, 2010 – December 31, 2015

    Resolved

  • Monitoring, Regular

    —

    Radium-228

    January 1, 2010 – December 31, 2015

    Resolved

  • Monitoring, Regular

    —

    Combined Uranium

    January 1, 2010 – December 31, 2015

    Resolved

  • Monitoring, Regular

    —

    Combined Radium (-226 and -228)

    January 1, 2010 – December 31, 2015

    Resolved

  • Monitoring, Regular

    —

    Radium-228

    January 1, 2010 – December 31, 2015

    Resolved

  • Monitoring, Regular

    —

    Combined Uranium

    January 1, 2010 – December 31, 2015

    Resolved

  • Monitoring, Regular

    —

    Gross Alpha, Excl. Radon and U

    January 1, 2010 – December 31, 2015

    Resolved

  • Monitoring, Regular

    —

    Radium-228

    January 1, 2010 – December 31, 2015

    Resolved

  • Monitoring, Regular

    —

    Gross Alpha, Excl. Radon and U

    January 1, 2010 – December 31, 2015

    Resolved

  • Monitoring, Regular

    —

    1,2,4-Trichlorobenzene

    January 1, 2010 – December 31, 2015

    Resolved

  • Monitoring, Regular

    —

    p-Dichlorobenzene

    January 1, 2010 – December 31, 2015

    Resolved

  • Monitoring, Regular

    —

    trans-1,2-Dichloroethylene

    January 1, 2010 – December 31, 2015

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloroethane

    January 1, 2010 – December 31, 2015

    Resolved

  • Monitoring, Regular

    —

    Styrene

    January 1, 2010 – December 31, 2015

    Resolved

  • Monitoring, Regular

    —

    DICHLOROMETHANE

    January 1, 2010 – December 31, 2015

    Resolved

  • Monitoring, Regular

    —

    trans-1,2-Dichloroethylene

    January 1, 2010 – December 31, 2015

    Resolved

  • Monitoring, Regular

    —

    CHLOROBENZENE

    January 1, 2010 – December 31, 2015

    Resolved

  • Monitoring, Regular

    —

    p-Dichlorobenzene

    January 1, 2010 – December 31, 2015

    Resolved

  • Monitoring, Regular

    —

    Styrene

    January 1, 2010 – December 31, 2015

    Resolved

  • Monitoring, Regular

    —

    Carbon tetrachloride

    January 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    1,1,1-Trichloroethane

    January 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Nitrate

    January 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    o-Dichlorobenzene

    January 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    1,2,4-Trichlorobenzene

    January 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Nitrate

    January 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Benzene

    January 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    CHLOROBENZENE

    January 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    o-Dichlorobenzene

    January 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    cis-1,2-Dichloroethylene

    January 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Benzene

    January 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    CHLOROBENZENE

    January 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Trichloroethylene

    January 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Toluene

    January 1, 2005 – December 31, 2005

    Resolved

  • Monitoring, Regular

    —

    1,1-Dichloroethylene

    January 1, 2005 – December 31, 2005

    Resolved

  • Monitoring, Regular

    —

    Tetrachloroethylene

    January 1, 2005 – December 31, 2005

    Resolved

  • Follow-up Or Routine LCR Tap M/R

    —

    Lead and Copper Rule

    October 1, 2004 – July 28, 2008

    Resolved

  • Monitoring, Regular

    —

    OXAMYL

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) phthalate

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Heptachlor

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Benzo(a)pyrene

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Hexachlorocyclopentadiene

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Radium-226

    January 1, 2004 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Combined Radium (-226 and -228)

    January 1, 2004 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Simazine

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Picloram

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Heptachlor

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    2,4-D

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Methoxychlor

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Dalapon

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) adipate

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Hexachlorocyclopentadiene

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) adipate

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) phthalate

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    2,3,7,8-TCDD

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Heptachlor

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    2,4-D

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Benzo(a)pyrene

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Chlordane

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    BHC-GAMMA

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Dalapon

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) adipate

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Simazine

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Hexachlorocyclopentadiene

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    2,3,7,8-TCDD

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Chlordane

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Dalapon

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Endothall

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Heptachlor

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Endrin

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Endothall

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) adipate

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Picloram

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Hexachlorocyclopentadiene

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    2,3,7,8-TCDD

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Endrin

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Methoxychlor

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Toxaphene

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Dalapon

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) adipate

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Simazine

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Dinoseb

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Hexachlorocyclopentadiene

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Atrazine

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    LASSO

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    2,3,7,8-TCDD

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Heptachlor

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Heptachlor epoxide

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    2,4-D

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    ETHYLENE DIBROMIDE

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Toxaphene

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    2,3,7,8-TCDD

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Heptachlor epoxide

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    HEXACHLOROBENZENE

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Benzo(a)pyrene

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Chlordane

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Endrin

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    BHC-GAMMA

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Methoxychlor

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) adipate

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Simazine

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) phthalate

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Picloram

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    LASSO

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Heptachlor

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    2,4-D

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Benzo(a)pyrene

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    1,2-DIBROMO-3-CHLOROPROPANE

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Chlordane

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    BHC-GAMMA

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Toxaphene

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Dalapon

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Diquat

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) adipate

    January 1, 2004 – December 31, 2006

    Resolved

  • Monitoring, Check/Repeat/Confirmation

    —

    Nitrate

    May 31, 1989 – May 30, 1992

    Archived

  • Monitoring, Check/Repeat/Confirmation

    —

    Nitrate

    May 31, 1989 – May 30, 1992

    Archived

  • Maximum Contaminant Level Violation, Single Sample

    Health-based

    Nitrate

    April 1, 1989 – June 30, 1989

    Archived

  • Monitoring, Regular

    —

    Gross Alpha, Excl. Radon and U

    October 15, 1986 – October 14, 1990

    Archived

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Enforcement actions

Contact

TOWN OF GILBERT N WATER TREATMENT PLANT

480-503-6387

GILBERT, AZ 85234