SHELTON, CT · Fairfield County

AQUARION-RIDGEFIELD KNOLLS Water System

Current status

1 item on record is open and awaiting resolution as of July 4, 2026. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings. Full details are in the violation history below.

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

System facts

System ID (PWSID): CT1180021
System type: Community Water System
Population served: 958
Service connections: 223
Ownership: privately owned
Water source: groundwater (wells)

Violation history

Lead Consumer Notice
—
Lead and Copper Rule
December 30, 2021 – January 21, 2022
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2018 – July 9, 2018
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
December 30, 2015
Unaddressed
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
August 10, 2004 – November 15, 2004
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2004 – November 15, 2004
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2004 – June 22, 2004
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
November 1, 2003 – November 30, 2003
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 2003 – July 31, 2003
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
November 1, 2002 – November 30, 2002
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 2002 – July 31, 2002
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 1995 – August 31, 1995
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 1991 – September 30, 1991
Resolved

Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yet

Period	Violation	Contaminant / rule	Health-based	Status
December 30, 2021 – January 21, 2022	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
July 1, 2018 – July 9, 2018	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
December 30, 2015	Lead Consumer Notice	Lead and Copper Rule	—	Unaddressed
August 10, 2004 – November 15, 2004	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
July 1, 2004 – November 15, 2004	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2004 – June 22, 2004	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
November 1, 2003 – November 30, 2003	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2003 – July 31, 2003	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
November 1, 2002 – November 30, 2002	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 2002 – July 31, 2002	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
August 1, 1995 – August 31, 1995	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved

Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yet

Enforcement actions

July 9, 2018State Compliance achieved1 linked violation
April 24, 2009State Public Notification received1 linked violation
March 17, 2009State Violation/Reminder Notice1 linked violation
March 17, 2009State Public Notification requested1 linked violation
January 12, 2009State Compliance achieved1 linked violation
May 5, 2008State Compliance achieved2 linked violations
April 3, 2008State Compliance achievedgeneral compliance action — not tied to a specific violation on record
January 18, 2008State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
December 31, 2006State Compliance achieved1 linked violation
July 1, 2004State Compliance achieved2 linked violations
June 22, 2004State Compliance achieved1 linked violation
June 21, 2004State Public Notification requested1 linked violation
June 21, 2004State Administrative/Compliance Order with penalty issued1 linked violation
June 15, 2004State Compliance achieved1 linked violation
November 21, 2003State Violation/Reminder Notice3 linked violations
November 21, 2003State Public Notification received1 linked violation
November 21, 2003State Public Notification requested2 linked violations
July 21, 2003State Violation/Reminder Notice1 linked violation
July 21, 2003State Public Notification received2 linked violations
November 18, 2002State Violation/Reminder Notice1 linked violation
November 18, 2002State Public Notification requested1 linked violation
September 12, 2002State Public Notification received2 linked violations
July 30, 1999State Violation/Reminder Notice3 linked violations
September 6, 1996State Public Notification received4 linked violations
August 14, 1995State Public Notification received7 linked violations
March 11, 1994State Compliance achieved37 linked violations
February 4, 1994State Public Notification received46 linked violations
March 31, 1992State Compliance achieved2 linked violations
March 31, 1987State Compliance achievedgeneral compliance action — not tied to a specific violation on record

Contact

ULRICH, ROBERT J.

203-926-4320

SHELTON, CT 06484