Is AQUARION-MYSTIC required to publish a Consumer Confidence Report?

Yes. AQUARION-MYSTIC 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 AQUARION-MYSTIC’s next Consumer Confidence Report due?

AQUARION-MYSTIC’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.

SHELTON, CT · New London County

AQUARION-MYSTIC Water System

Consumer Confidence Report status

AQUARION-MYSTIC 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 AQUARION-MYSTIC.

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 Connecticut’s official records. Always confirm current status with Connecticut before making decisions based on this information.

System facts

System ID (PWSID): CT1370011
System type: Community Water System
Population served: 10,788
Service connections: 5,077
Ownership: privately owned
Water source: surface water (rivers, lakes, or reservoirs)

AQUARION-MYSTIC is one of 35 community water systems in Connecticut in the 10,001 to 100,000 people size category, serving 10,788 people from surface water.

As of August 1, 2026, its federal record holds 42 entries between 1986 and 2018, all of which EPA lists as closed. Nothing has been added since 2018.

Of the 42, 39 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 inorganic chemicals, volatile organic chemicals, and the Consumer Confidence Rule.

Violation history

Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
August 10, 2018 – July 6, 2018
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2018 – July 11, 2018
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
Styrene
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
Toluene
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
Benzene
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
Nitrite
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
Selenium
January 1, 2016 – December 31, 2018
Resolved
Monitoring, Regular
—
Chromium
January 1, 2016 – December 31, 2018
Resolved
Monitoring, Regular
—
CYANIDE
January 1, 2016 – December 31, 2018
Resolved
Monitoring, Regular
—
Fluoride
January 1, 2016 – December 31, 2018
Resolved
Monitoring, Regular
—
Mercury
January 1, 2016 – December 31, 2018
Resolved
Monitoring, Regular
—
Nickel
January 1, 2016 – December 31, 2018
Resolved
Monitoring, Regular
—
Antimony, Total
January 1, 2016 – December 31, 2018
Resolved
Monitoring, Regular
—
Beryllium, Total
January 1, 2016 – December 31, 2018
Resolved
Monitoring, Regular
—
Thallium, Total
January 1, 2016 – December 31, 2018
Resolved
Monitoring, Regular
—
Arsenic
January 1, 2016 – December 31, 2018
Resolved
Monitoring, Regular
—
Barium
January 1, 2016 – December 31, 2018
Resolved
Monitoring, Regular
—
Cadmium
January 1, 2016 – December 31, 2018
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2006 – July 13, 2006
Resolved
Monitoring, Regular
—
Nitrite
January 1, 1993 – March 31, 1993
Resolved
Monitoring, Regular
—
Selenium
December 1, 1986 – November 30, 1987
Resolved
Monitoring, Regular
—
Mercury
December 1, 1986 – November 30, 1987
Resolved
Monitoring, Regular
—
Cadmium
December 1, 1986 – November 30, 1987
Resolved
Monitoring, Regular
—
Barium
December 1, 1986 – November 30, 1987
Resolved
Monitoring, Regular
—
Arsenic
December 1, 1986 – November 30, 1987
Resolved
Monitoring, Regular
—
Fluoride
December 1, 1986 – November 30, 1987
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
August 10, 2018 – July 6, 2018	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
July 1, 2018 – July 11, 2018	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	Nitrate	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	Styrene	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	Toluene	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	Benzene	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	Nitrite	—	Resolved
January 1, 2016 – December 31, 2018	Monitoring, Regular	Selenium	—	Resolved
January 1, 2016 – December 31, 2018	Monitoring, Regular	Chromium	—	Resolved
January 1, 2016 – December 31, 2018	Monitoring, Regular	CYANIDE	—	Resolved
January 1, 2016 – December 31, 2018	Monitoring, Regular	Fluoride	—	Resolved
January 1, 2016 – December 31, 2018	Monitoring, Regular	Mercury	—	Resolved
January 1, 2016 – December 31, 2018	Monitoring, Regular	Nickel	—	Resolved
January 1, 2016 – December 31, 2018	Monitoring, Regular	Antimony, Total	—	Resolved
January 1, 2016 – December 31, 2018	Monitoring, Regular	Beryllium, Total	—	Resolved
January 1, 2016 – December 31, 2018	Monitoring, Regular	Thallium, Total	—	Resolved
January 1, 2016 – December 31, 2018	Monitoring, Regular	Arsenic	—	Resolved
January 1, 2016 – December 31, 2018	Monitoring, Regular	Barium	—	Resolved
January 1, 2016 – December 31, 2018	Monitoring, Regular	Cadmium	—	Resolved
July 1, 2006 – July 13, 2006	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 1993 – March 31, 1993	Monitoring, Regular	Nitrite	—	Resolved
December 1, 1986 – November 30, 1987	Monitoring, Regular	Selenium	—	Resolved
December 1, 1986 – November 30, 1987	Monitoring, Regular	Mercury	—	Resolved
December 1, 1986 – November 30, 1987	Monitoring, Regular	Cadmium	—	Resolved
December 1, 1986 – November 30, 1987	Monitoring, Regular	Barium	—	Resolved
December 1, 1986 – November 30, 1987	Monitoring, Regular	Arsenic	—	Resolved
December 1, 1986 – November 30, 1987	Monitoring, Regular	Fluoride	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

December 31, 2019State Compliance achieved23 linked violations
May 6, 2019State Violation/Reminder Notice4 linked violations
January 11, 2019State Violation/Reminder Notice2 linked violations
July 30, 1993State Public Notification received4 linked violations
December 31, 1988State Compliance achieved9 linked violations

Common questions

Is AQUARION-MYSTIC required to publish a Consumer Confidence Report?: Yes. AQUARION-MYSTIC 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 AQUARION-MYSTIC’s next Consumer Confidence Report due?: AQUARION-MYSTIC’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does AQUARION-MYSTIC have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for AQUARION-MYSTIC.
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

ULRICH, ROBERT J.

203-926-4320

SHELTON, CT 06484