Is MONTVILLE WATER SUPPLY required to publish a Consumer Confidence Report?

Yes. MONTVILLE WATER SUPPLY 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 MONTVILLE WATER SUPPLY’s next Consumer Confidence Report due?

MONTVILLE WATER SUPPLY’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.

UNCASVILLE, CT · New London County

MONTVILLE WATER SUPPLY Water System

Consumer Confidence Report status

MONTVILLE WATER SUPPLY 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 MONTVILLE WATER SUPPLY.

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): CT0864011
System type: Community Water System
Population served: 1,300
Service connections: 468
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

MONTVILLE WATER SUPPLY is one of 84 community water systems in Connecticut in the 501 to 3,300 people size category, serving 1,300 people from surface water.

As of August 1, 2026, its federal record holds 1 entry in 2006, all of which EPA lists as closed. Nothing has been added since 2006.

All 1 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 the Total Coliform Rules.

Violation history

Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
March 1, 2006 – March 31, 2006
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
March 1, 2006 – March 31, 2006	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

December 31, 2019State Compliance achieved1 linked violation
June 19, 2018State Public Notification received1 linked violation
January 5, 2018State Public Notification requested1 linked violation
January 5, 2018State Violation/Reminder Notice1 linked violation
March 24, 2017State Administrative/Compliance Order without penalty issued3 linked violations
June 30, 2016State Compliance achieved1 linked violation
March 4, 2016State Public Notification received1 linked violation
February 22, 2016State Violation/Reminder Notice1 linked violation
February 22, 2016State Public Notification requested1 linked violation
December 31, 2015State Compliance achieved1 linked violation
November 13, 2015State Compliance achieved1 linked violation
November 13, 2015State Public Notification received1 linked violation
September 29, 2015State Violation/Reminder Notice1 linked violation
September 29, 2015State Public Notification requested1 linked violation
June 30, 2015State Compliance achieved1 linked violation
May 15, 2015State Public Notification received1 linked violation
April 16, 2015State Public Notification requested1 linked violation
April 16, 2015State Violation/Reminder Notice1 linked violation
May 23, 2013State Public Notification received1 linked violation
May 23, 2013State Public Notification received2 linked violations
April 11, 2013State Public Notification requested2 linked violations
April 11, 2013State Public Notification requested2 linked violations
December 31, 2012State Compliance achieved3 linked violations
September 24, 2012State Compliance achieved2 linked violations
September 7, 2010State Compliance achieved3 linked violations
August 25, 2010State Violation/Reminder Notice4 linked violations
June 10, 2009State Compliance achieved4 linked violations
August 27, 2007State Compliance achieved4 linked violations
June 22, 2005State Compliance achieved2 linked violations
June 22, 2005State Public Notification received31 linked violations
October 23, 2003State Administrative/Compliance Order with penalty issued3 linked violations
February 17, 1998State Compliance achieved5 linked violations

Common questions

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

MCDANIEL, RONALD K.

860-848-6711

UNCASVILLE, CT 06382