Is GILBERT, TOWN OF required to publish a Consumer Confidence Report?

Yes. GILBERT, TOWN OF is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is GILBERT, TOWN OF’s next Consumer Confidence Report due?

GILBERT, TOWN OF’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

GILBERT, AZ · Maricopa County

GILBERT, TOWN OF Water System

Consumer Confidence Report status

GILBERT, TOWN OF must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for GILBERT, TOWN OF.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 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)

GILBERT, TOWN OF is the fourth largest community water system in Arizona, serving 247,600 people from surface water.

As of August 1, 2026, its federal record holds 76 entries between 1986 and 2025, all of which EPA lists as closed.

Of the 76, 73 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves synthetic organic chemicals, volatile organic chemicals, and inorganic chemicals.

Violation history

Report Sample Result/Fail Monitor (RTCR)
—
Revised Total Coliform Rule
July 1, 2025 – August 29, 2025
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
February 1, 2025 – February 28, 2025
Resolved
Monitoring, Regular
—
Arsenic
October 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Arsenic
October 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Ethylbenzene
April 1, 2022 – June 30, 2022
Resolved
Monitoring, Regular
—
Trichloroethylene
April 1, 2022 – June 30, 2022
Resolved
Monitoring, Regular
—
Carbon tetrachloride
April 1, 2022 – June 30, 2022
Resolved
Monitoring, Regular
—
Xylenes, Total
April 1, 2022 – June 30, 2022
Resolved
Monitoring, Regular
—
CHLOROBENZENE
April 1, 2022 – June 30, 2022
Resolved
Monitoring, Regular
—
o-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
—
1,1,1-Trichloroethane
April 1, 2022 – June 30, 2022
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
April 1, 2022 – June 30, 2022
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
January 1, 2022 – January 31, 2022
Resolved
Monitoring, Regular
—
Dalapon
January 1, 2021 – December 31, 2023
Resolved
Monitoring, Regular
—
Hexachlorocyclopentadiene
January 1, 2021 – December 31, 2023
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
January 1, 2021 – December 31, 2023
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
Nickel
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
January 1, 2021 – December 31, 2023
Resolved
Monitoring, Regular
—
Fluoride
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
Beryllium, Total
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
Styrene
January 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
Arsenic
October 1, 2020 – December 31, 2020
Resolved
Monitoring, Regular
—
Atrazine
January 1, 2019 – December 31, 2021
Resolved
Monitoring, Regular
—
Simazine
January 1, 2019 – December 31, 2021
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2017 – September 30, 2017
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2017 – June 30, 2017
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2013 – December 31, 2013
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2013 – December 31, 2013
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2010 – December 31, 2015
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
January 1, 2010 – December 31, 2015
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2010 – December 31, 2015
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2010 – December 31, 2015
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2010 – December 31, 2015
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
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
—
1,2-Dichloroethane
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2005 – December 31, 2005
Resolved
Monitoring, Regular
—
Carbofuran
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Hexachlorocyclopentadiene
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Simazine
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Glyphosate
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
ETHYLENE DIBROMIDE
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
2,3,7,8-TCDD
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Dalapon
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Endrin
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
2,3,7,8-TCDD
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Methoxychlor
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
2,4,5-TP
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Heptachlor epoxide
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
—
Toxaphene
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Endrin
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
2,4,5-TP
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
2,4-D
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

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

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2025 – August 29, 2025	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	—	Resolved
February 1, 2025 – February 28, 2025	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
October 1, 2024 – December 31, 2024	Monitoring, Regular	Arsenic	—	Resolved
October 1, 2024 – December 31, 2024	Monitoring, Regular	Arsenic	—	Resolved
April 1, 2022 – June 30, 2022	Monitoring, Regular	Ethylbenzene	—	Resolved
April 1, 2022 – June 30, 2022	Monitoring, Regular	Trichloroethylene	—	Resolved
April 1, 2022 – June 30, 2022	Monitoring, Regular	Carbon tetrachloride	—	Resolved
April 1, 2022 – June 30, 2022	Monitoring, Regular	Xylenes, Total	—	Resolved
April 1, 2022 – June 30, 2022	Monitoring, Regular	CHLOROBENZENE	—	Resolved
April 1, 2022 – June 30, 2022	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
April 1, 2022 – June 30, 2022	Monitoring, Regular	Vinyl chloride	—	Resolved
April 1, 2022 – June 30, 2022	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
April 1, 2022 – June 30, 2022	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
April 1, 2022 – June 30, 2022	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2022 – January 31, 2022	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
January 1, 2021 – December 31, 2023	Monitoring, Regular	Dalapon	—	Resolved
January 1, 2021 – December 31, 2023	Monitoring, Regular	Hexachlorocyclopentadiene	—	Resolved
January 1, 2021 – December 31, 2023	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	Nickel	—	Resolved
January 1, 2021 – December 31, 2023	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	Fluoride	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	Beryllium, Total	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	Styrene	—	Resolved
October 1, 2020 – December 31, 2020	Monitoring, Regular	Arsenic	—	Resolved
January 1, 2019 – December 31, 2021	Monitoring, Regular	Atrazine	—	Resolved
January 1, 2019 – December 31, 2021	Monitoring, Regular	Simazine	—	Resolved
July 1, 2017 – September 30, 2017	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2017 – June 30, 2017	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2013 – December 31, 2013	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2013 – December 31, 2013	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2010 – December 31, 2015	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2010 – December 31, 2015	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
January 1, 2010 – December 31, 2015	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2010 – December 31, 2015	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2010 – December 31, 2015	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2010 – December 31, 2015	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2010 – December 31, 2015	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2010 – December 31, 2015	Monitoring, Regular	Styrene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2005 – December 31, 2005	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Carbofuran	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Hexachlorocyclopentadiene	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Simazine	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Glyphosate	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	2,3,7,8-TCDD	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Dalapon	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Endrin	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	2,3,7,8-TCDD	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Methoxychlor	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	2,4,5-TP	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Heptachlor epoxide	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	2,3,7,8-TCDD	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Endrin	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Toxaphene	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Endrin	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	2,4,5-TP	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	2,4-D	—	Resolved
May 31, 1989 – May 30, 1992	Monitoring, Check/Repeat/Confirmation	Nitrate	—	Archived
May 31, 1989 – May 30, 1992	Monitoring, Check/Repeat/Confirmation	Nitrate	—	Archived
April 1, 1989 – June 30, 1989	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Archived
October 15, 1986 – October 14, 1990	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived

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

Enforcement actions

February 14, 2024State Violation/Reminder Notice74 linked violations
February 14, 2024State Public Notification requested103 linked violations
July 28, 2008State Compliance achieved236 linked violations

Common questions

Is GILBERT, TOWN OF required to publish a Consumer Confidence Report?: Yes. GILBERT, TOWN OF is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is GILBERT, TOWN OF’s next Consumer Confidence Report due?: GILBERT, TOWN OF’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does GILBERT, TOWN OF have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for GILBERT, TOWN OF.
What is a Consumer Confidence Report?: A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

TOWN OF GILBERT N WATER TREATMENT PLANT

480-503-6387

GILBERT, AZ 85234