Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	CT0340011
PWS Name	DANBURY WATER DEPARTMENT
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	62055
County Served	Fairfield

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
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	293682	Returned to Compliance	01-OCT-2021	31-DEC-2021	No
TT	Monthly Turbidity Exceed (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	293681	Returned to Compliance	01-JUL-2021	31-JUL-2021	Yes
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	293676	Returned to Compliance	30-DEC-2020	-	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	293663	Returned to Compliance	01-JUL-2019	30-SEP-2019	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	293661	Returned to Compliance	01-OCT-2017	31-DEC-2017	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	293660	Returned to Compliance	01-OCT-2017	31-DEC-2017	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	293652	Returned to Compliance	01-APR-2017	30-JUN-2017	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	293655	Returned to Compliance	01-APR-2017	30-JUN-2017	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	293653	Returned to Compliance	01-APR-2017	30-JUN-2017	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	293623	Returned to Compliance	01-JUL-2016	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	293619	Returned to Compliance	01-APR-2015	30-JUN-2015	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	293617	Returned to Compliance	01-JAN-2014	-	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	293615	Known	01-JUL-2013	30-SEP-2013	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	293616	Known	01-JUL-2013	30-SEP-2013	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	293611	Returned to Compliance	01-JAN-2012	31-DEC-2012	No
MR	Monitoring, Regular	Nitrate Rule	Nitrite	293610	Returned to Compliance	01-JAN-2012	31-DEC-2012	No
MR	Monitoring, Regular	Nitrate Rule	Nitrite	293612	Returned to Compliance	01-JAN-2012	31-DEC-2012	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	293609	Returned to Compliance	01-JAN-2012	31-DEC-2012	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	293600	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	293550	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	293599	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	293597	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	293548	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	293595	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	293546	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	293545	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	293594	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	293544	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	293593	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	293551	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	293552	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	293601	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	293553	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	293602	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	293605	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	293556	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	293564	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	293543	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	293515	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	293516	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	293565	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	293580	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	293531	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	293535	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	293584	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	293592	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	293591	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	293542	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	293541	Returned to Compliance	01-JAN-2009	31-DEC-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	293590	Returned to Compliance	01-JAN-2009	31-DEC-2009	No

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Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
280273	293682	SOX	State Compliance achieved	12-JAN-2022	State	Results Received
280271	293681	SIF	State Public Notification received	17-SEP-2021	State	-
280268	293676	SOX	State Compliance achieved	08-JAN-2021	State	Lead Consumer Notice received.
280266	293663	SIF	State Public Notification received	12-JUN-2020	State	-
280259	293661	SOX	State Compliance achieved	20-MAR-2018	State	Results received late
280247	293660	SIA	State Violation/Reminder Notice	09-MAR-2018	State	-
280243	293653	SOX	State Compliance achieved	03-OCT-2017	State	Samples received late
280243	293652	SOX	State Compliance achieved	03-OCT-2017	State	Samples received late
280243	293655	SOX	State Compliance achieved	03-OCT-2017	State	Samples received late
280229	293623	SOX	State Compliance achieved	01-JUL-2016	State	-
280227	293619	SOX	State Compliance achieved	13-OCT-2015	State	results received
280223	293617	SIF	State Public Notification received	23-APR-2015	State	-
280218	293610	SIA	State Violation/Reminder Notice	01-MAY-2013	State	-
280218	293609	SIA	State Violation/Reminder Notice	01-MAY-2013	State	-
280214	293611	SIA	State Violation/Reminder Notice	09-APR-2013	State	-
280214	293612	SIA	State Violation/Reminder Notice	09-APR-2013	State	-
280212	293515	SOX	State Compliance achieved	10-MAR-2010	State	results received
280212	293605	SOX	State Compliance achieved	10-MAR-2010	State	results received
280212	293531	SOX	State Compliance achieved	10-MAR-2010	State	results received
280212	293535	SOX	State Compliance achieved	10-MAR-2010	State	results received
280212	293536	SOX	State Compliance achieved	10-MAR-2010	State	results received
280212	293537	SOX	State Compliance achieved	10-MAR-2010	State	results received
280212	293538	SOX	State Compliance achieved	10-MAR-2010	State	results received
280212	293540	SOX	State Compliance achieved	10-MAR-2010	State	results received
280212	293541	SOX	State Compliance achieved	10-MAR-2010	State	results received
280212	293542	SOX	State Compliance achieved	10-MAR-2010	State	results received
280212	293543	SOX	State Compliance achieved	10-MAR-2010	State	results received
280212	293544	SOX	State Compliance achieved	10-MAR-2010	State	results received
280212	293545	SOX	State Compliance achieved	10-MAR-2010	State	results received
280212	293546	SOX	State Compliance achieved	10-MAR-2010	State	results received
280212	293548	SOX	State Compliance achieved	10-MAR-2010	State	results received
280212	293550	SOX	State Compliance achieved	10-MAR-2010	State	results received
280212	293551	SOX	State Compliance achieved	10-MAR-2010	State	results received
280212	293552	SOX	State Compliance achieved	10-MAR-2010	State	results received
280212	293553	SOX	State Compliance achieved	10-MAR-2010	State	results received
280212	293556	SOX	State Compliance achieved	10-MAR-2010	State	results received
280212	293564	SOX	State Compliance achieved	10-MAR-2010	State	results received
280212	293565	SOX	State Compliance achieved	10-MAR-2010	State	results received
280212	293580	SOX	State Compliance achieved	10-MAR-2010	State	results received
280212	293584	SOX	State Compliance achieved	10-MAR-2010	State	results received
280212	293585	SOX	State Compliance achieved	10-MAR-2010	State	results received
280212	293586	SOX	State Compliance achieved	10-MAR-2010	State	results received
280212	293587	SOX	State Compliance achieved	10-MAR-2010	State	results received
280212	293589	SOX	State Compliance achieved	10-MAR-2010	State	results received
280212	293590	SOX	State Compliance achieved	10-MAR-2010	State	results received
280212	293591	SOX	State Compliance achieved	10-MAR-2010	State	results received
280212	293592	SOX	State Compliance achieved	10-MAR-2010	State	results received
280212	293593	SOX	State Compliance achieved	10-MAR-2010	State	results received
280212	293594	SOX	State Compliance achieved	10-MAR-2010	State	results received
280212	293595	SOX	State Compliance achieved	10-MAR-2010	State	results received

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
INTERCONNECTION - CT0090292 - RIVERVIEW	61388	Yes	Consecutive Connection	Surface water	Permanent	Active
RIDGEBURY ESTATES WELL 5	27996	Yes	Well	Ground water	Other	Inactive
RIDGEBURY ESTATES WELL 6	27995	Yes	Well	Ground water	Other	Inactive
RIDGEBURY ESTATES WELL 8	27994	Yes	Well	Ground water	Other	Inactive
RIDGEBURY ESTATES WELL 7	27993	Yes	Well	Ground water	Other	Inactive
RIDGEBURY ESTATES WELL 4	27992	Yes	Well	Ground water	Other	Inactive
RIDGEBURY ESTATES WELL 9	27990	Yes	Well	Ground water	Other	Inactive
DORAN WELL	27010	Yes	Well	Ground water	Other	Inactive
RIDGEBURY ESTATES WELL 10	26998	Yes	Well	Ground water	Other	Inactive
RIDGEBURY ESTATES WELL 3	26997	Yes	Well	Ground water	Other	Inactive
OSBORNE WELL	27804	Yes	Well	Ground water	Emergency	Inactive
LAKE KENOSIA WELL 3	27645	Yes	Well	Ground water	Emergency	Inactive
LAKE KENOSIA WELL 2	27644	Yes	Well	Ground water	Emergency	Inactive
LAKE KENOSIA WELL 1	27643	Yes	Well	Ground water	Emergency	Inactive
LAKE KENOSIA WELL 4	27646	Yes	Well	Ground water under the influence of surface water	Emergency	Inactive
PADANARAM RESERVOIR	32577	Yes	Reservoir	Surface water	Permanent	Active
EAST LAKE RESERVOIR	32576	Yes	Reservoir	Surface water	Permanent	Active
MARGERIE RESERVOIR	32575	Yes	Reservoir	Surface water	Permanent	Active
LOWER KOHANZA RESERVOIR	32573	Yes	Reservoir	Surface water	Permanent	Active
UPPER KOHANZA RESERVOIR	32572	Yes	Reservoir	Surface water	Permanent	Active
BOGGS POND	32571	Yes	Reservoir	Surface water	Permanent	Active
WEST LAKE RESERVOIR	32570	Yes	Reservoir	Surface water	Permanent	Active
LAKE KENOSIA DIVERSION	32574	Yes	Reservoir	Surface water	Emergency	Inactive
BALL POND BROOK DVRSN	20230	Yes	Intake	Surface water	Permanent	Inactive
WEST LAKE	20222	Yes	Intake	Surface water	Permanent	Active
MARGERIE RES	20221	Yes	Intake	Surface water	Permanent	Active
INTERCONNECTION - CT0090292 -BERKSHIRE	61389	Yes	Consecutive Connection	Surface water	Permanent	Active
MARGERIE CLEARWELLS	59179	No	Clear Well	-	-	Active
WEST LAKE CLEARWELLS	59181	No	Clear Well	-	-	Active
DISTRIBUTION SYSTEM	20232	No	Distribution System/Zone	-	-	Active
KING STREET DIVERSION	32578	No	Other	-	-	Active
SHELTER ROCK PUMP STATION	36131	No	Pump Facility	-	-	Active
WEST LAKE HIGH SERVICE PUMP STATION	36133	No	Pump Facility	-	-	Active
WEST CONN PUMP STATION	36135	No	Pump Facility	-	-	Active
NABBY ROAD PUMP STATION	36139	No	Pump Facility	-	-	Active
HIGH SCHOOL PUMP STATION	51306	No	Pump Facility	-	-	Active
BIRCH RD BOOSTER STATION	51308	No	Pump Facility	-	-	Active
RESERVE PUMP STATION	54406	No	Pump Facility	-	-	Active
PADANARAM RAW WATER PUMP STATION	55424	No	Pump Facility	-	-	Active
LOWER KOHANZA RAW WATER PUMP STATION	55426	No	Pump Facility	-	-	Active
CLAPBOARD RIDGE PUMP STATION	55433	No	Pump Facility	-	-	Active
PLEASANT ACRES PUMP STATION	55435	No	Pump Facility	-	-	Active
HARVEST HILL PUMP STATION	55439	No	Pump Facility	-	-	Active
MARGERIE/LAKEWOOD PUMP STATION	55441	No	Pump Facility	-	-	Active
WOODLAND RD PUMP STATION	57766	No	Pump Facility	-	-	Active
LAKE KENOSIA PUMP STATION	36137	No	Pump Facility	-	-	Inactive
PARK AVE PUMP STATION	51304	No	Pump Facility	-	-	Inactive
LAKE KENOSIA FLOOD SKIMMING PUMP STATION	55420	No	Pump Facility	-	-	Inactive
WEST LAKE RAW WATER PUMP STATION	55437	No	Pump Facility	-	-	Inactive
ENTRY POINT - MARGERIE TREATMENT PLANT	38771	No	Sampling Station	-	-	Active

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Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
MARGERIE FILTER PLANT	10896	Coagulation	Particulate removal
MARGERIE FILTER PLANT	10896	Fluoridation	Other
MARGERIE FILTER PLANT	10896	Filtration, Rapid Sand	Particulate removal
MARGERIE FILTER PLANT	10896	Inhibitor, Orthophosphate	Corrosion control
MARGERIE FILTER PLANT	10896	pH Adjustment, Post	Corrosion control
MARGERIE FILTER PLANT	10896	Flocculation	Particulate removal
MARGERIE FILTER PLANT	10896	Rapid Mix	Particulate removal
MARGERIE FILTER PLANT	10896	Hypochlorination, Pre	Disinfection
MARGERIE FILTER PLANT	10896	Hypochlorination, Post	Disinfection
WEST LAKE FILTER PLANT	10897	Coagulation	Particulate removal
WEST LAKE FILTER PLANT	10897	Fluoridation	Other
WEST LAKE FILTER PLANT	10897	Filtration, Rapid Sand	Particulate removal
WEST LAKE FILTER PLANT	10897	Flocculation	Particulate removal
WEST LAKE FILTER PLANT	10897	Sedimentation	Particulate removal
WEST LAKE FILTER PLANT	10897	Inhibitor, Orthophosphate	Corrosion control
WEST LAKE FILTER PLANT	10897	pH Adjustment, Post	Corrosion control
WEST LAKE FILTER PLANT	10897	Rapid Mix	Particulate removal
WEST LAKE FILTER PLANT	10897	Hypochlorination, Post	Disinfection

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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.

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