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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.

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Violations

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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	2400022	Returned to Compliance	01-JUL-2024	-	No
TT	Failure To Address Deficiency	Ground Water Rule	Groundwater Rule	1900018	Returned to Compliance	02-DEC-2018	-	Yes
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	1300014	Returned to Compliance	01-OCT-2012	01-JAN-2013	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	1300015	Returned to Compliance	01-OCT-2012	01-JAN-2013	No
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	0500013	Returned to Compliance	01-APR-2005	30-JUN-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	0500012	Returned to Compliance	01-JAN-2005	31-MAR-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	0500011	Returned to Compliance	01-OCT-2004	31-DEC-2004	Yes
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	0400010	Returned to Compliance	01-JAN-2004	01-APR-2004	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	9700008	Known	01-DEC-1996	31-DEC-1996	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9700007	Returned to Compliance	01-NOV-1996	30-NOV-1996	Yes
MR	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	Lead and Copper Rule	9300006	Returned to Compliance	01-JUL-1993	15-FEB-1996	No

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Enforcement Actions

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Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
2400054	2400022	SOX	State Compliance achieved	24-SEP-2024	State	-
1900045	1900018	SOX	State Compliance achieved	19-MAR-2019	State	-
1300039	1300015	SOX	State Compliance achieved	21-JUN-2013	State	-
1200038	1300014	SOX	State Compliance achieved	21-JUN-2013	State	-
600031	0500011	SOX	State Compliance achieved	06-JUN-2006	State	-
600031	0500012	SOX	State Compliance achieved	06-JUN-2006	State	-
600031	0500013	SOX	State Compliance achieved	06-JUN-2006	State	-
400021	0400010	SOX	State Compliance achieved	27-JUL-2004	State	-
9700017	9700007	SOX	State Compliance achieved	15-JUN-1997	State	-
9700014	9700008	SIF	State Public Notification received	03-FEB-1997	State	-
9600008	9300006	SOX	State Compliance achieved	15-FEB-1996	State	-

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All Facilities

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Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
MANCHESTER WATER WORKS /LAKE MASSABESIC	1	Yes	Consecutive Connection	Surface water	Permanent	Active

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Treatment Processes

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No treatment process(es) found. EPA has no record of treatment process(es) reported by the primacy agency for this water system.

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