Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	CT0950011
PWS Name	NEW LONDON DEPT. OF PUBLIC UTILITIES
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	27620
County Served	New London

The tables below list all violations that the state reported to EPA for this water system. Health-based violations are listed first, followed by treatment technique, MRDL, monitoring, reporting, and other violations.

Health-based	Violations of maximum contaminant levels (MCLs) or maximum residual disinfectant levels (MRDLs), which specify the highest concentrations of contaminants or disinfectants, respectively, allowed in drinking water; or of treatment technique (TT) rules, which specify required processes intended to reduce the amounts of contaminants in drinking water. MCLs, MRDLs, and treatment technique rules are all health-based drinking water standards.
Maximum Contaminant Level or MCL	The highest level of a contaminant that is allowed in drinking water. MCLs are set as close to the MCLGs as feasible using the best available treatment technology.
Treatment Technique	A required process intended to reduce the level of a contaminant in drinking water.
Maximum residual disinfectant level or MRDL	The highest level of a disinfectant allowed in drinking water. There is convincing evidence that addition of a disinfectant is necessary for control of microbial contaminants.
Monitoring & reporting	Failure to conduct regular monitoring of drinking water quality, as required by SDWA, or to submit monitoring results in a timely fashion to the primacy agency or EPA.
Public notification & other	Failure to provide notification to the public as required by the Violations of Public Notification Rule and the Consumer Confidence Report Rule, and violations of other requirements such as those violations related to variances and exemptions.

Violations

Violation Category Code	Violation Type Description	Rule Name	Contaminant Name	Violation ID	Compliance Status Description	Compliance Period Begin Date	Compliance Period End Date	Is Health Based Ind
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	8842533	Returned to Compliance	01-JUL-2025	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	8842532	Returned to Compliance	01-JUL-2024	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	8842531	Returned to Compliance	01-JUL-2023	-	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	8842530	Returned to Compliance	30-DEC-2020	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	8842527	Returned to Compliance	10-AUG-2017	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	8842528	Returned to Compliance	01-JUL-2017	-	No
MR	Monitoring, Source Water (LT2)	Long Term 2 Enhanced Surface Water Treatment Rule	E. COLI	8842526	Returned to Compliance	01-FEB-2017	28-FEB-2017	No
MR	Monitoring, Source Water (LT2)	Long Term 2 Enhanced Surface Water Treatment Rule	Cryptosporidium	8842525	Returned to Compliance	01-FEB-2017	28-FEB-2017	No
MR	Monitoring, Source Water (LT2)	Long Term 2 Enhanced Surface Water Treatment Rule	Turbidity	8842524	Returned to Compliance	01-FEB-2017	28-FEB-2017	No
MR	Monitoring, Source Water (LT2)	Long Term 2 Enhanced Surface Water Treatment Rule	Turbidity	8842521	Returned to Compliance	01-DEC-2016	31-DEC-2016	No
MR	Monitoring, Source Water (LT2)	Long Term 2 Enhanced Surface Water Treatment Rule	E. COLI	8842520	Returned to Compliance	01-DEC-2016	31-DEC-2016	No
MR	Monitoring, Source Water (LT2)	Long Term 2 Enhanced Surface Water Treatment Rule	E. COLI	8842522	Returned to Compliance	01-NOV-2016	30-NOV-2016	No
MR	Monitoring, Source Water (LT2)	Long Term 2 Enhanced Surface Water Treatment Rule	Turbidity	8842523	Returned to Compliance	01-NOV-2016	30-NOV-2016	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	8842515	Returned to Compliance	01-APR-2015	30-APR-2015	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	8842511	Returned to Compliance	01-JUL-2009	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	8842509	Returned to Compliance	10-AUG-2008	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	8842409	Returned to Compliance	01-JUL-2008	-	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	8841108	Returned to Compliance	01-SEP-2007	30-SEP-2007	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	8841508	Returned to Compliance	01-SEP-2007	30-SEP-2007	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	8841008	Returned to Compliance	01-AUG-2007	31-AUG-2007	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	8841408	Returned to Compliance	01-AUG-2007	31-AUG-2007	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	8841308	Known	01-JUL-2007	30-SEP-2007	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	8840906	Returned to Compliance	10-AUG-2006	-	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	8840506	Returned to Compliance	01-NOV-2005	30-NOV-2005	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	8840706	Returned to Compliance	01-NOV-2005	30-NOV-2005	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	8840406	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	8840606	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	8840806	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	8839706	Returned to Compliance	10-AUG-2005	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	8839806	Returned to Compliance	01-JUL-2005	30-SEP-2005	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	8839606	Returned to Compliance	01-JUL-2005	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	8839906	Returned to Compliance	01-JUL-2005	30-SEP-2005	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	8839405	Returned to Compliance	01-APR-2005	30-JUN-2005	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	8839505	Returned to Compliance	01-APR-2005	30-JUN-2005	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	8839205	Returned to Compliance	01-OCT-2004	31-DEC-2004	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	8839305	Returned to Compliance	01-OCT-2004	31-DEC-2004	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	8832205	Returned to Compliance	10-AUG-2004	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	8832405	Returned to Compliance	01-JUL-2004	30-SEP-2004	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	8832305	Returned to Compliance	01-JUL-2004	30-SEP-2004	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	8832105	Returned to Compliance	01-JUL-2004	-	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	8833705	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	8832004	Returned to Compliance	01-JAN-2004	31-MAR-2004	No
MR	Monitoring, Regular	Inorganic Chemicals	Beryllium, Total	8833805	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	8838905	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	8838605	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	8838505	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	8838405	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	8838305	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	8838105	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	8837905	Returned to Compliance	01-JAN-2004	31-DEC-2004	No

1 - 50 of 77

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
6552	8842533	SOX	State Compliance achieved	07-AUG-2025	State	-
6551	8842532	SOX	State Compliance achieved	08-JUL-2024	State	submitted late
6550	8842531	SOX	State Compliance achieved	25-JUL-2023	State	2022 CCR completed
6549	8842530	SOX	State Compliance achieved	05-FEB-2021	State	-
6545	8842527	SIA	State Violation/Reminder Notice	03-JAN-2018	State	-
6545	8842528	SIA	State Violation/Reminder Notice	03-JAN-2018	State	-
6543	8842526	SOX	State Compliance achieved	27-JUN-2017	State	Results Received
6543	8842520	SOX	State Compliance achieved	27-JUN-2017	State	Results Received
6543	8842522	SOX	State Compliance achieved	27-JUN-2017	State	Results Received
6543	8842525	SOX	State Compliance achieved	27-JUN-2017	State	Results Received
6543	8842524	SOX	State Compliance achieved	27-JUN-2017	State	Results Received
6544	8842521	SOX	State Compliance achieved	21-JUN-2017	State	Results Received
6544	8842523	SOX	State Compliance achieved	21-JUN-2017	State	Results Received
6529	8842515	SIF	State Public Notification received	03-NOV-2015	State	-
6515	8842511	SIA	State Violation/Reminder Notice	21-OCT-2009	State	-
6509	8842409	SOX	State Compliance achieved	09-DEC-2008	State	-
6509	8842509	SOX	State Compliance achieved	09-DEC-2008	State	-
6308	8841008	SOX	State Compliance achieved	31-MAR-2008	State	RTC
6308	8841108	SOX	State Compliance achieved	31-MAR-2008	State	RTC
6208	8841408	SIF	State Public Notification received	25-JAN-2008	State	-
6208	8841508	SIF	State Public Notification received	25-JAN-2008	State	-
6208	8841308	SIF	State Public Notification received	25-JAN-2008	State	-
5307	8840906	SIA	State Violation/Reminder Notice	08-NOV-2006	State	-
5207	8840806	SIF	State Public Notification received	02-NOV-2006	State	-
5007	8839405	SIF	State Public Notification received	02-NOV-2006	State	-
5007	8839505	SIF	State Public Notification received	02-NOV-2006	State	-
5107	8839806	SIF	State Public Notification received	02-NOV-2006	State	-
5107	8839906	SIF	State Public Notification received	02-NOV-2006	State	-
5207	8840406	SIF	State Public Notification received	02-NOV-2006	State	-
4906	8840506	SOX	State Compliance achieved	30-JUN-2006	State	RTC
4406	8840706	SIF	State Public Notification received	26-MAY-2006	State	-
4406	8840606	SIF	State Public Notification received	26-MAY-2006	State	-
3406	8839606	SOX	State Compliance achieved	28-NOV-2005	State	ccr-completed
3406	8839706	SOX	State Compliance achieved	28-NOV-2005	State	ccr-completed
3106	8832105	SIA	State Violation/Reminder Notice	15-NOV-2005	State	-
2105	8839205	SOX	State Compliance achieved	04-AUG-2005	State	results received
2105	8839305	SOX	State Compliance achieved	04-AUG-2005	State	results received
2805	8834805	SOX	State Compliance achieved	08-JUL-2005	State	results received
2805	8838905	SOX	State Compliance achieved	08-JUL-2005	State	results received
2805	8838605	SOX	State Compliance achieved	08-JUL-2005	State	results received
2805	8838505	SOX	State Compliance achieved	08-JUL-2005	State	results received
2805	8838405	SOX	State Compliance achieved	08-JUL-2005	State	results received
2805	8838305	SOX	State Compliance achieved	08-JUL-2005	State	results received
2805	8832505	SOX	State Compliance achieved	08-JUL-2005	State	results received
2805	8832605	SOX	State Compliance achieved	08-JUL-2005	State	results received
2805	8832705	SOX	State Compliance achieved	08-JUL-2005	State	results received
2805	8832905	SOX	State Compliance achieved	08-JUL-2005	State	results received
2805	8833005	SOX	State Compliance achieved	08-JUL-2005	State	results received
2805	8833105	SOX	State Compliance achieved	08-JUL-2005	State	results received
2805	8833205	SOX	State Compliance achieved	08-JUL-2005	State	results received

1 - 50 of 77

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
INTERCONNECTION - CT0450011 - EAST LYME	61588	Yes	Consecutive Connection	Ground water	Permanent	Active
BECKWITH POND	32622	Yes	Reservoir	Surface water	Permanent	Active
FAIRY LAKE RESERVOIR	32621	Yes	Reservoir	Surface water	Permanent	Active
BOGUE BROOK RESERVOIR	32620	Yes	Reservoir	Surface water	Permanent	Active
BARNES RESERVOIR	32619	Yes	Reservoir	Surface water	Permanent	Active
LAKE KONOMOC RESERVOIR	32618	Yes	Reservoir	Surface water	Permanent	Active
MILL POND	61803	Yes	Reservoir	Surface water	Emergency	Inactive
MILL POND	61654	Yes	Reservoir	Surface water	Emergency	Inactive
LAKE BRANDEGEE	32739	Yes	Reservoir	Surface water	Emergency	Inactive
BOND RESERVOIR	32721	Yes	Reservoir	Surface water	Emergency	Inactive
DAVIS POND	32720	Yes	Reservoir	Surface water	Emergency	Inactive
GREAT SWAMP DIVERSION	41838	Yes	Intake	Surface water	Permanent	Active
LAKE KONOMOC INTAKE	22496	Yes	Intake	Surface water	Permanent	Active
DISTRIBUTION SYSTEM	22500	No	Distribution System/Zone	-	-	Active
GREAT SWAMP DIVERSION	32623	No	Other	-	-	Active
HUNTS BROOK DIVERSION	32762	No	Other	-	-	Active
WILLIAMS STREET PUMP STATION	49683	No	Pump Facility	-	-	Active
BECKWITH POND RAW WATER PUMP STATION	53895	No	Pump Facility	-	-	Active
LAKE KONOMOC WTP PUMP STATION	53903	No	Pump Facility	-	-	Active
LAKE KONOMOC WTP RAW WATER PUMP STATION	53905	No	Pump Facility	-	-	Active
GREAT SWAMP DIVERSION PUMP STATION	54141	No	Pump Facility	-	-	Active
BECKWITH ROAD PUMP STATION	61805	No	Pump Facility	-	-	Active
INDUSTRIAL DRIVE PUMP STATION	61807	No	Pump Facility	-	-	Active
DAYTON PLACE PUMP STATION	61809	No	Pump Facility	-	-	Active
LAKE KONOMOC WTP ENTRY POINT	45793	No	Sampling Station	-	-	Active
ENTRY POINT	38294	No	Sampling Station	-	-	Inactive
LAKE KONOMOC WTP CLEARWELL	53893	No	Storage	-	-	Active
TREMONT STREET STORAGE TANK	53897	No	Storage	-	-	Active
MANATUCK HILL STORAGE TANK	53899	No	Storage	-	-	Active
CT COLLEGE HYDRO TANK	61782	No	Storage	-	-	Active
GALLOWS LANE STORAGE TANK	53901	No	Storage	-	-	Inactive
LAKE KONOMOC WATER TREATMENT PLANT	36453	No	Treatment Plant	-	-	Active

1 - 32 of 32

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
LAKE KONOMOC WATER TREATMENT PLANT	36453	Filtration, Rapid Sand	Particulate removal
LAKE KONOMOC WATER TREATMENT PLANT	36453	Hypochlorination, Pre	Disinfection
LAKE KONOMOC WATER TREATMENT PLANT	36453	Coagulation	Particulate removal
LAKE KONOMOC WATER TREATMENT PLANT	36453	Flocculation	Particulate removal
LAKE KONOMOC WATER TREATMENT PLANT	36453	Sedimentation	Particulate removal
LAKE KONOMOC WATER TREATMENT PLANT	36453	Inhibitor, Polyphosphate	Corrosion control
LAKE KONOMOC WATER TREATMENT PLANT	36453	pH Adjustment, Post	Corrosion control
LAKE KONOMOC WATER TREATMENT PLANT	36453	Hypochlorination, Post	Disinfection
LAKE KONOMOC WATER TREATMENT PLANT	36453	Fluoridation	Other
LAKE KONOMOC WATER TREATMENT PLANT	36453	Hypochlorination, Pre	Disinfection

1 - 10 of 10

For more information on a Water System:
Ask the operators of your water system, contact your primacy agency or file a Freedom of Information Act (FOIA) request.
Drinking water in general: Find out more about your drinking water web site or call the Safe Drinking Water Hotline (1-800-426-4791). EPA has also prepared a table about various regulated drinking water contaminants.
Tools for accessing EPA drinking water data: Safe Drinking Water Information System (SDWIS) Federal Reporting Services and Drinking Water Performance and Results Report.
Research Data: As well as monitoring the levels of drinking water contaminants for which EPA has set standards, EPA, states, and water systems also carry out studies of contaminants that may need to be regulated in the future. For more information about these contaminants, please see the National Contaminant Occurrence Database.

Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Nav Menu

Your Drinking Water Query results from SDWIS Fed Reporting Services

Note

PWS Violation

Violations

Column Actions

Enforcement Actions

Enforcement Actions

Column Actions

PWS Facilities

All Facilities

Column Actions

PWS Treatment Processes

Treatment Processes

Column Actions