Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	CT0800011
PWS Name	MERIDEN WATER DIVISION
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	58441
County Served	New Haven

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 Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	1105893	Returned to Compliance	10-AUG-2025	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	1105892	Returned to Compliance	01-JUL-2025	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	1105890	Returned to Compliance	10-AUG-2024	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	1105884	Returned to Compliance	01-OCT-2022	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	1105863	Returned to Compliance	01-JAN-2018	31-MAR-2018	Yes
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	1105865	Returned to Compliance	30-DEC-2017	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	1105860	Returned to Compliance	10-AUG-2017	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	1105861	Returned to Compliance	01-JUL-2017	-	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	1105859	Returned to Compliance	01-APR-2017	-	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	1105858	Returned to Compliance	30-DEC-2015	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	1105774	Returned to Compliance	01-JUL-2015	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	1105725	Returned to Compliance	10-AUG-2014	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	1105724	Returned to Compliance	01-JUL-2014	-	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	1096806	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	1096606	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	1096506	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	1096406	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	1095906	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	1094406	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	1096906	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	1097006	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	1097106	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	1097206	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	1097306	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	1097406	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	1097606	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	1097806	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	1097906	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	1098006	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	1098106	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	1098406	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	1094306	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	1096306	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring, Regular	Nitrate Rule	Nitrite	1092706	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Nitrate Rule	Nitrite	1093306	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Nitrate Rule	Nitrite	1093706	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Nitrate Rule	Nitrite	1092906	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	1092406	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	1093006	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	1093606	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	1093406	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	1093206	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	1092606	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	1092806	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Nitrate Rule	Nitrite	1092306	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Nitrate Rule	Nitrite	1093506	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Nitrate Rule	Nitrite	1093106	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	1092206	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Nitrate Rule	Nitrite	1092506	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
TT	OCCT/SOWT Study/Recommendation	Lead and Copper Rule	Lead and Copper Rule	326796	Returned to Compliance	01-JUL-1993	-	Yes

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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
1036093	1105893	SOX	State Compliance achieved	15-OCT-2025	State	CCR Certification submitted late
1036092	1105892	SOX	State Compliance achieved	10-OCT-2025	State	2024 CCR completed
1036091	1105890	SOX	State Compliance achieved	17-SEP-2024	State	-
1036088	1105884	SOX	State Compliance achieved	30-JUN-2023	State	monitoring resumed
1036056	1105865	SOX	State Compliance achieved	16-MAY-2019	State	Received.
1036052	1105863	SOX	State Compliance achieved	07-JUN-2018	State	-
1036043	1105861	SIA	State Violation/Reminder Notice	02-JAN-2018	State	submitted late.
1036040	1105860	SIA	State Violation/Reminder Notice	02-JAN-2018	State	Submitted cert. late.
1036039	1105859	SIA	State Violation/Reminder Notice	11-DEC-2017	State	-
1036038	1105858	SOX	State Compliance achieved	09-JUN-2017	State	-
1036023	1105774	SIA	State Violation/Reminder Notice	28-OCT-2015	State	-
1036021	1105724	SIA	State Violation/Reminder Notice	15-JAN-2015	State	-
1036022	1105725	SIA	State Violation/Reminder Notice	15-JAN-2015	State	-
1036006	1092706	SOX	State Compliance achieved	31-MAR-2006	State	results received
1036006	1092606	SOX	State Compliance achieved	31-MAR-2006	State	results received
1036006	1092906	SOX	State Compliance achieved	31-MAR-2006	State	results received
1036006	1093006	SOX	State Compliance achieved	31-MAR-2006	State	results received
1036006	1093106	SOX	State Compliance achieved	31-MAR-2006	State	results received
1036006	1093206	SOX	State Compliance achieved	31-MAR-2006	State	results received
1036006	1093306	SOX	State Compliance achieved	31-MAR-2006	State	results received
1036006	1093406	SOX	State Compliance achieved	31-MAR-2006	State	results received
1036006	1093506	SOX	State Compliance achieved	31-MAR-2006	State	results received
1036006	1093606	SOX	State Compliance achieved	31-MAR-2006	State	results received
1036006	1093706	SOX	State Compliance achieved	31-MAR-2006	State	results received
1036006	1094306	SOX	State Compliance achieved	31-MAR-2006	State	results received
1036006	1094406	SOX	State Compliance achieved	31-MAR-2006	State	results received
1036006	1095906	SOX	State Compliance achieved	31-MAR-2006	State	results received
1036006	1096306	SOX	State Compliance achieved	31-MAR-2006	State	results received
1036006	1096406	SOX	State Compliance achieved	31-MAR-2006	State	results received
1036006	1096506	SOX	State Compliance achieved	31-MAR-2006	State	results received
1036006	1096606	SOX	State Compliance achieved	31-MAR-2006	State	results received
1036006	1096806	SOX	State Compliance achieved	31-MAR-2006	State	results received
1036006	1096906	SOX	State Compliance achieved	31-MAR-2006	State	results received
1036006	1097006	SOX	State Compliance achieved	31-MAR-2006	State	results received
1036006	1097106	SOX	State Compliance achieved	31-MAR-2006	State	results received
1036006	1097206	SOX	State Compliance achieved	31-MAR-2006	State	results received
1036006	1097306	SOX	State Compliance achieved	31-MAR-2006	State	results received
1036006	1097406	SOX	State Compliance achieved	31-MAR-2006	State	results received
1036006	1097606	SOX	State Compliance achieved	31-MAR-2006	State	results received
1036006	1097806	SOX	State Compliance achieved	31-MAR-2006	State	results received
1036006	1097906	SOX	State Compliance achieved	31-MAR-2006	State	results received
1036006	1098006	SOX	State Compliance achieved	31-MAR-2006	State	results received
1036006	1098106	SOX	State Compliance achieved	31-MAR-2006	State	results received
1036006	1098406	SOX	State Compliance achieved	31-MAR-2006	State	results received
1036006	1092506	SOX	State Compliance achieved	31-MAR-2006	State	results received
1036006	1092406	SOX	State Compliance achieved	31-MAR-2006	State	results received
1036006	1092306	SOX	State Compliance achieved	31-MAR-2006	State	results received
1036006	1092206	SOX	State Compliance achieved	31-MAR-2006	State	results received
1036006	1092806	SOX	State Compliance achieved	31-MAR-2006	State	results received
84996	326796	SOX	State Compliance achieved	01-APR-1996	State	-

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
INTERCONNECTION - CT0930011 - RWA	45119	Yes	Consecutive Connection	Surface water	Permanent	Active
LINCOLN WELL	27793	Yes	Well	Ground water	Seasonal	Active
PLATT WELL	27792	Yes	Well	Ground water	Seasonal	Active
SAWMILL WELL	27797	Yes	Well	Ground water	Permanent	Inactive
BRITANNIA STREET WELL	27789	Yes	Well	Ground water	Permanent	Inactive
KENSINGTON WELL	26883	Yes	Well	Ground water	Permanent	Inactive
CUNO WELL	26882	Yes	Well	Ground water	Permanent	Inactive
DOSSIN BEACH WELL	26881	Yes	Well	Ground water	Permanent	Inactive
EVANSVILLE AVENUE EAST WELL	27795	Yes	Well	Ground water	Permanent	Active
EVANSVILLE AVENUE WEST WELL	27794	Yes	Well	Ground water	Permanent	Active
COLUMBUS PARK WELL	27791	Yes	Well	Ground water	Permanent	Active
MULE WELL	27790	Yes	Well	Ground water	Permanent	Active
ELMERE RESERVOIR	32607	Yes	Reservoir	Surface water	Permanent	Active
HALLMERE RESERVOIR	32605	Yes	Reservoir	Surface water	Permanent	Active
BROAD BROOK RESERVOIR	32604	Yes	Reservoir	Surface water	Permanent	Active
MERIMERE RESERVOIR	32603	Yes	Reservoir	Surface water	Permanent	Active
KENMERE RESERVOIR	32602	Yes	Reservoir	Surface water	Permanent	Active
BRADLEY HUBBARD RESERVOIR	32601	Yes	Reservoir	Surface water	Permanent	Active
BRADLEY HUBBARD RESERVOIR	21943	Yes	Intake	Surface water	Permanent	Active
MERIMERE RESERVOIR	21942	Yes	Intake	Surface water	Permanent	Active
ELMERE RESERVOIR	21941	Yes	Intake	Surface water	Permanent	Active
BROAD BROOK RESERVOIR	21940	Yes	Intake	Surface water	Permanent	Active
DISTRIBUTION SYSTEM	21944	No	Distribution System/Zone	-	-	Active
STOCKING BROOK DIVERSION	32606	No	Other	-	-	Active
MALONEY CANAL DIVERSION	32608	No	Other	-	-	Active
MCKONE CANAL DIVERSION	32609	No	Other	-	-	Active
FINCH AVE PUMP STATION	49615	No	Pump Facility	-	-	Active
JOHNSON AVE PUMP STATION	49617	No	Pump Facility	-	-	Active
EAST ROAD PUMP STATION	49619	No	Pump Facility	-	-	Active
CARPENTER AVE PUMP STATION	49621	No	Pump Facility	-	-	Active
PARKER AVE PUMP STATION	49623	No	Pump Facility	-	-	Active
SCHWINK DRIVE PUMP STATION	49625	No	Pump Facility	-	-	Active
COLLINSDALE PUMP STATION	49627	No	Pump Facility	-	-	Active
MERIMERE WTP ENTRY POINT	38416	No	Sampling Station	-	-	Active
ELMERE WTP ENTRY POINT	45764	No	Sampling Station	-	-	Active
BROAD BROOK WTP ENTRY POINT	45765	No	Sampling Station	-	-	Active
BRADLEY HUBBARD WTP ENTRY POINT	45766	No	Sampling Station	-	-	Active
EVANSVILLE WTP ENTRY POINT	45767	No	Sampling Station	-	-	Active
MULE WELL WTP ENTRY POINT	45768	No	Sampling Station	-	-	Active
COLUMBUS PARK WELL WTP ENTRY POINT	45769	No	Sampling Station	-	-	Active
PLATT LINCOLN WTP ENTRY POINT	45770	No	Sampling Station	-	-	Active
LINCOLN WELL - TOWER EFFLUENT	46486	No	Sampling Station	-	-	Active
JOHNSON AVE TANK	49589	No	Storage	-	-	Active
CARPENTER AVE ATMOSPHERIC TANK	49591	No	Storage	-	-	Active
FLEMING ROAD TANK	49593	No	Storage	-	-	Active
ELMERE TANK	49595	No	Storage	-	-	Active
MERIMERE TANK	49597	No	Storage	-	-	Active
COLLINSDALE TANK 1	49599	No	Storage	-	-	Active
COLLINSDALE TANK 2	49601	No	Storage	-	-	Active
SCHWINKS HILL TANK 1	49603	No	Storage	-	-	Active

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Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
BROAD BROOK WATER TREATMENT PLANT	36393	Permanganate	Iron removal
BROAD BROOK WATER TREATMENT PLANT	36393	pH Adjustment, Pre	Particulate removal
BROAD BROOK WATER TREATMENT PLANT	36393	Rapid Mix	Particulate removal
BROAD BROOK WATER TREATMENT PLANT	36393	Activated Carbon, Powdered	Taste / odor control
BROAD BROOK WATER TREATMENT PLANT	36393	Coagulation	Particulate removal
BROAD BROOK WATER TREATMENT PLANT	36393	Flocculation	Particulate removal
BROAD BROOK WATER TREATMENT PLANT	36393	Filtered	Particulate removal
BROAD BROOK WATER TREATMENT PLANT	36393	Inhibitor, Polyphosphate	Corrosion control
BROAD BROOK WATER TREATMENT PLANT	36393	pH Adjustment, Post	Corrosion control
BROAD BROOK WATER TREATMENT PLANT	36393	Fluoridation	Other
BROAD BROOK WATER TREATMENT PLANT	36393	Aeration, Diffused	Particulate removal
BROAD BROOK WATER TREATMENT PLANT	36393	Hypochlorination, Post	Disinfection
BROAD BROOK WATER TREATMENT PLANT	36393	Hypochlorination, Pre	Disinfection
PLATT LINCOLN TREATMENT STATION	36394	Aeration, Packed Tower	Organics removal
PLATT LINCOLN TREATMENT STATION	36394	Inhibitor, Orthophosphate	Corrosion control
PLATT LINCOLN TREATMENT STATION	36394	Fluoridation	Other
PLATT LINCOLN TREATMENT STATION	36394	Hypochlorination, Post	Disinfection
PLATT LINCOLN TREATMENT STATION	36394	Hypochlorination, Pre	Disinfection
PLATT LINCOLN TREATMENT STATION	36394	4-Log Treatment of Viruses	Disinfection
MERIMERE WATER TREATMENT PLANT	36395	Aeration, Spray	Taste / odor control
MERIMERE WATER TREATMENT PLANT	36395	pH Adjustment, Pre	Particulate removal
MERIMERE WATER TREATMENT PLANT	36395	Rapid Mix	Particulate removal
MERIMERE WATER TREATMENT PLANT	36395	Coagulation	Particulate removal
MERIMERE WATER TREATMENT PLANT	36395	Flocculation	Particulate removal
MERIMERE WATER TREATMENT PLANT	36395	Sedimentation	Particulate removal
MERIMERE WATER TREATMENT PLANT	36395	Filtration, Rapid Sand	Particulate removal
MERIMERE WATER TREATMENT PLANT	36395	Inhibitor, Polyphosphate	Corrosion control
MERIMERE WATER TREATMENT PLANT	36395	pH Adjustment, Post	Corrosion control
MERIMERE WATER TREATMENT PLANT	36395	Fluoridation	Other
MERIMERE WATER TREATMENT PLANT	36395	Hypochlorination, Post	Disinfection
MERIMERE WATER TREATMENT PLANT	36395	Hypochlorination, Pre	Disinfection
ELMERE WATER TREATMENT PLANT	36396	Aeration, Spray	Taste / odor control
ELMERE WATER TREATMENT PLANT	36396	Permanganate	Iron removal
ELMERE WATER TREATMENT PLANT	36396	pH Adjustment, Pre	Particulate removal
ELMERE WATER TREATMENT PLANT	36396	Rapid Mix	Particulate removal
ELMERE WATER TREATMENT PLANT	36396	Activated Carbon, Powdered	Taste / odor control
ELMERE WATER TREATMENT PLANT	36396	Coagulation	Particulate removal
ELMERE WATER TREATMENT PLANT	36396	Flocculation	Particulate removal
ELMERE WATER TREATMENT PLANT	36396	Sedimentation	Particulate removal
ELMERE WATER TREATMENT PLANT	36396	Filtration, Rapid Sand	Particulate removal
ELMERE WATER TREATMENT PLANT	36396	Inhibitor, Polyphosphate	Corrosion control
ELMERE WATER TREATMENT PLANT	36396	pH Adjustment, Post	Corrosion control
ELMERE WATER TREATMENT PLANT	36396	Fluoridation	Other
ELMERE WATER TREATMENT PLANT	36396	Hypochlorination, Post	Disinfection
ELMERE WATER TREATMENT PLANT	36396	Hypochlorination, Pre	Disinfection
BRADLEY HUBBARD WATER TREAMENT PLANT	36397	Permanganate	Iron removal
BRADLEY HUBBARD WATER TREAMENT PLANT	36397	pH Adjustment, Pre	Particulate removal
BRADLEY HUBBARD WATER TREAMENT PLANT	36397	Coagulation	Particulate removal
BRADLEY HUBBARD WATER TREAMENT PLANT	36397	Flocculation	Particulate removal
BRADLEY HUBBARD WATER TREAMENT PLANT	36397	Sedimentation	Particulate removal

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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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