NEW FAIRFIELD, CT · Fairfield County

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

System facts

System ID (PWSID): CT0910081
System type: Community Water System
Population served: 356
Service connections: 89
Ownership: local government
Water source: groundwater (wells)

Violation history

Public Notification Violation for NPDWR Violation
—
Public Notice
May 3, 2025 – July 22, 2025
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
August 10, 2024 – September 15, 2024
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
December 30, 2023 – July 26, 2023
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
December 1, 2023 – December 31, 2023
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2023 – June 28, 2023
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
January 1, 2023 – March 31, 2023
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
December 30, 2019 – February 7, 2020
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2017 – July 14, 2017
Resolved
Monitoring, Regular
—
LASSO
April 1, 2017 – June 30, 2017
Resolved
Monitoring, Regular
—
Total Polychlorinated Biphenyls (PCB)
April 1, 2017 – June 30, 2017
Resolved
Monitoring, Regular
—
Atrazine
April 1, 2017 – June 30, 2017
Resolved
Monitoring, Regular
—
Endrin
April 1, 2017 – June 30, 2017
Resolved
Monitoring, Regular
—
Toxaphene
April 1, 2017 – June 30, 2017
Resolved
Monitoring, Regular
—
Diquat
April 1, 2017 – June 30, 2017
Resolved
Monitoring, Regular
—
OXAMYL
April 1, 2017 – June 30, 2017
Resolved
Monitoring, Regular
—
Dinoseb
April 1, 2017 – June 30, 2017
Resolved
Monitoring, Regular
—
Hexachlorocyclopentadiene
April 1, 2017 – June 30, 2017
Resolved
Monitoring, Regular
—
Aldicarb
April 1, 2017 – June 30, 2017
Resolved
Report Sample Result/Fail Monitor (RTCR)
—
Revised Total Coliform Rule
October 10, 2016 – December 1, 2016
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2016 – August 5, 2016
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
August 2, 2006 – April 13, 2007
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
April 1, 2004 – June 30, 2004
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
May 3, 2025 – July 22, 2025	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
August 10, 2024 – September 15, 2024	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
December 30, 2023 – July 26, 2023	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
December 1, 2023 – December 31, 2023	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
July 1, 2023 – June 28, 2023	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2023 – March 31, 2023	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
December 30, 2019 – February 7, 2020	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
July 1, 2017 – July 14, 2017	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
April 1, 2017 – June 30, 2017	Monitoring, Regular	LASSO	—	Resolved
April 1, 2017 – June 30, 2017	Monitoring, Regular	Total Polychlorinated Biphenyls (PCB)	—	Resolved
April 1, 2017 – June 30, 2017	Monitoring, Regular	Atrazine	—	Resolved
April 1, 2017 – June 30, 2017	Monitoring, Regular	Endrin	—	Resolved
April 1, 2017 – June 30, 2017	Monitoring, Regular	Toxaphene	—	Resolved
April 1, 2017 – June 30, 2017	Monitoring, Regular	Diquat	—	Resolved
April 1, 2017 – June 30, 2017	Monitoring, Regular	OXAMYL	—	Resolved
April 1, 2017 – June 30, 2017	Monitoring, Regular	Dinoseb	—	Resolved
April 1, 2017 – June 30, 2017	Monitoring, Regular	Hexachlorocyclopentadiene	—	Resolved
April 1, 2017 – June 30, 2017	Monitoring, Regular	Aldicarb	—	Resolved
October 10, 2016 – December 1, 2016	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	—	Resolved
July 1, 2016 – August 5, 2016	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
August 2, 2006 – April 13, 2007	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
April 1, 2004 – June 30, 2004	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

November 19, 2025State Violation/Reminder Notice3 linked violations
September 8, 2025State Compliance achieved3 linked violations
July 22, 2025State Public Notification received3 linked violations
July 22, 2025State Public Notification received3 linked violations
August 28, 2024State Violation/Reminder Notice3 linked violations
May 2, 2024State Violation/Reminder Notice4 linked violations
December 5, 2023State Public Notification received3 linked violations
December 4, 2023State Violation/Reminder Notice4 linked violations
December 4, 2023State Public Notification requested4 linked violations
September 7, 2023State Violation/Reminder Notice4 linked violations
June 28, 2023State Compliance achieved4 linked violations
February 4, 2020State Violation/Reminder Notice5 linked violations
December 12, 2017State Violation/Reminder Notice3 linked violations
July 14, 2017State Compliance achieved3 linked violations
March 6, 2017State Violation/Reminder Notice4 linked violations
December 1, 2016State Compliance achieved3 linked violations
May 17, 2007State Compliance achieved3 linked violations
April 13, 2007State Compliance achieved2 linked violations
February 27, 2007State Administrative/Compliance Order with penalty issued6 linked violations
December 31, 2004State Compliance achieved16 linked violations
September 29, 1997State Public Notification received2 linked violations
September 3, 1997State Public Notification received5 linked violations
August 27, 1997State Violation/Reminder Notice3 linked violations

Contact

CRONK, MARK S.

203-746-1356

NEW FAIRFIELD, CT 06812