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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
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	2	Open	01-JAN-2021	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	1	Returned to Compliance	01-JUL-2015	-	No
TT	Public Education	Lead and Copper Rule	Lead and Copper Rule	01V0001	Returned to Compliance	01-JAN-2000	-	Yes
TT	Public Education	Lead and Copper Rule	Lead and Copper Rule	00V0001	Returned to Compliance	01-JAN-1999	-	Yes
TT	Public Education	Lead and Copper Rule	Lead and Copper Rule	99V0001	Returned to Compliance	01-JAN-1998	-	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	96V0001	Known	01-OCT-1995	31-OCT-1995	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	95V0002	Known	01-JUN-1995	30-JUN-1995	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	95V0001	Known	01-DEC-1994	31-DEC-1994	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	94V0002	Known	01-OCT-1993	31-OCT-1993	Yes
MR	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	Lead and Copper Rule	93V0001	Returned to Compliance	01-JUL-1992	-	No
MR	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	Lead and Copper Rule	8003-93V0001	Open	01-JUL-1992	-	No
TT	Failure to Filter (SWTR)	Surface Water Treatment Rule	Surface Water Treatment Rule	9799999	Known	01-JAN-1992	05-MAY-2000	Yes
TT	Public Education	Lead and Copper Rule	Lead and Copper Rule	95V0003	Returned to Compliance	01-JAN-1992	-	Yes
Other	Notification, Public	Miscellaneous Other Rules	-	8200526	Known	30-JUN-1982	29-JUL-1982	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
28	2	SFL	State Administrative/Compliance Order without penalty issued	11-FEB-2022	State	LATE LCR CONSUMER NOTICE
27	1	SOX	State Compliance achieved	02-JUL-2016	State	-
14	01V0001	SOX	State Compliance achieved	19-MAR-2001	State	SUBMITTAL LETTER DATE
11	00V0001	SOX	State Compliance achieved	22-FEB-2000	State	-
15	99V0001	SOX	State Compliance achieved	09-APR-1999	State	-
15	95V0003	SOX	State Compliance achieved	09-APR-1999	State	-
22	93V0001	SOX	State Compliance achieved	01-JAN-1999	State	-
7	96V0001	SIE	State Public Notification requested	28-OCT-1995	State	-
6	95V0002	SIF	State Public Notification received	10-JUL-1995	State	COMPLIANCE ACHIEVED
3	95V0001	SIE	State Public Notification requested	10-DEC-1994	State	COMPLIANCE ACHIEVED
2	94V0002	SIE	State Public Notification requested	29-NOV-1993	State	PUBLIC NOTICE ISSUED, COMPLIANCE ACHIEVED
9799999	9799999	SFL	State Administrative/Compliance Order without penalty issued	29-JUN-1993	ODSWeb	-

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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
MWRA SUPPLY	1	Yes	Consecutive Connection	Surface water	Permanent	Active
NAHANT DISINFECTION FACILITY	2	No	Treatment Plant	-	-	Inactive

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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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