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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	9	Open	01-JUL-2022	-	No
MCL	Maximum Contaminant Level Violation, Acute (TCR)	Total Coliform Rule	Coliform (TCR)	2	Returned to Compliance	01-AUG-2014	31-AUG-2014	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	3	Returned to Compliance	01-AUG-2014	31-AUG-2014	Yes
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	1	Known	01-MAY-2008	31-MAY-2008	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	02V0001	Known	01-AUG-2002	31-AUG-2002	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	01V0001	Returned to Compliance	01-DEC-2000	31-DEC-2000	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	97V0001	Known	01-JUN-1997	30-JUN-1997	Yes
TT	OCCT/SOWT Treatment Installation/Demonstration	Lead and Copper Rule	Lead and Copper Rule	99V0001	Returned to Compliance	01-JAN-1997	-	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9140013	Known	01-JUL-1991	31-JUL-1991	Yes

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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
22	9	SFL	State Administrative/Compliance Order without penalty issued	17-FEB-2023	State	FAILURE TO PROVIDE CONSUMER NOTICE WITHIN 30 DAYS OF RESULT RECIPT FROM LAB
19	3	SOX	State Compliance achieved	30-SEP-2014	State	-
19	2	SOX	State Compliance achieved	30-SEP-2014	State	-
17	1	SFL	State Administrative/Compliance Order without penalty issued	24-JUN-2008	State	MISSING BACTERIOLOGICAL REPORT FOR MAY 2008
15	02V0001	SFL	State Administrative/Compliance Order without penalty issued	12-SEP-2002	State	SUBMIT PN AS PUBLISHED TO DEP
8	01V0001	SOX	State Compliance achieved	26-JAN-2001	State	-
6	99V0001	SOX	State Compliance achieved	15-MAY-2000	State	-
2	97V0001	SIE	State Public Notification requested	30-JUN-1997	State	-
9140013	9140013	SIF	State Public Notification received	08-AUG-1991	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
NATICK SUPPLY	35	Yes	Consecutive Connection	Ground water	Emergency	Active
T.F. COUGHLIN GP WELL	5	Yes	Well	Ground water	Permanent	Active
LONGFELLOW GP WELL	4	Yes	Well	Ground water	Permanent	Active
ROSEMARY REPLACEMENT G.P. WELL	38	Yes	Well	Ground water	Permanent	Active
MORSES POND GP WELL #4	33	Yes	Well	Ground water	Permanent	Active
MORSES POND GP WELL #3	31	Yes	Well	Ground water	Permanent	Active
MORSES POND GP WELL #2	29	Yes	Well	Ground water	Permanent	Active
MORSES POND WELL GP #1	27	Yes	Well	Ground water	Permanent	Active
T.F. COUGHLIN SW3 GP SUPPLEMENTAL WELL	25	Yes	Well	Ground water	Permanent	Active
T.F. COUGHLIN SW1 GP SUPPLEMENTAL WELL	23	Yes	Well	Ground water	Permanent	Active
WELLESLEY AVE. DUG WELL	1	Yes	Well	Ground water	Permanent	Active
WILLIAMS SPRING/FILT. GALL	7	Yes	Well	Ground water	Emergency	Inactive
TUBULAR WELLS	6	Yes	Well	Ground water	Emergency	Inactive
ROSEMARY GP WELL	3	Yes	Well	Ground water	Emergency	Inactive
MORSES GP WELLS (3)	2	Yes	Well	Ground water	Emergency	Inactive
MWRA SUPPLY	17	Yes	Consecutive Connection	Surface water	Permanent	Active
WELLESLEY AVE. DUG WELL PUMP	13	No	Pump Facility	-	-	Active
T.F. COUGHLIN GP WELL PUMP	14	No	Pump Facility	-	-	Active
LONGFELLOW GP WELL PUMP	16	No	Pump Facility	-	-	Active
MORSES POND WELL #1 PUMP	28	No	Pump Facility	-	-	Active
MORSES POND WELL #2 PUMP	30	No	Pump Facility	-	-	Active
MORSES POND GP WELL #3 PUMP	32	No	Pump Facility	-	-	Active
MORSES POND GP WELL #4 PUMP	34	No	Pump Facility	-	-	Active
T.F. COUGHLIN SW1 SUPPLEMENTAL WELL	36	No	Pump Facility	-	-	Active
T.F. COUGHLIN SW3 SUPPLEMENTAL WELL	37	No	Pump Facility	-	-	Active
ROSEMARY REPLACEMENT G.P. WELL PUMP	39	No	Pump Facility	-	-	Active
MORSES GP WELLS (2) PUMP	12	No	Pump Facility	-	-	Inactive
ROSEMARY GP WELL PUMP	15	No	Pump Facility	-	-	Inactive
PIERCE #1	10	No	Storage	-	-	Active
PIERCE #2	11	No	Storage	-	-	Active
MAUGUS #1	8	No	Storage	-	-	Active
MAUGUS #2	9	No	Storage	-	-	Active
ROSEMARY/LONGFELLOW WTP	18	No	Treatment Plant	-	-	Active
WELLESLEY AVENUE/TF COUGHLIN WTP	20	No	Treatment Plant	-	-	Active
MORSES POND WTP	21	No	Treatment Plant	-	-	Active

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
ROSEMARY/LONGFELLOW WTP	18	pH Adjustment	Corrosion control
ROSEMARY/LONGFELLOW WTP	18	Fluoridation	Other
ROSEMARY/LONGFELLOW WTP	18	Aeration, Slat Tray	Iron removal
ROSEMARY/LONGFELLOW WTP	18	Filtration, Greensand	Iron removal
ROSEMARY/LONGFELLOW WTP	18	Filtration, Greensand	Manganese removal
ROSEMARY/LONGFELLOW WTP	18	Hypochlorination, Pre	Disinfection
ROSEMARY/LONGFELLOW WTP	18	4-Log Treatment of Viruses	Disinfection
WELLESLEY AVENUE/TF COUGHLIN WTP	20	Filtration, Greensand	Iron removal
WELLESLEY AVENUE/TF COUGHLIN WTP	20	Filtration, Greensand	Manganese removal
WELLESLEY AVENUE/TF COUGHLIN WTP	20	Fluoridation	Other
WELLESLEY AVENUE/TF COUGHLIN WTP	20	Hypochlorination, Post	Disinfection
WELLESLEY AVENUE/TF COUGHLIN WTP	20	pH Adjustment	Corrosion control
WELLESLEY AVENUE/TF COUGHLIN WTP	20	Hypochlorination, Pre	Disinfection
WELLESLEY AVENUE/TF COUGHLIN WTP	20	4-Log Treatment of Viruses	Disinfection
MORSES POND WTP	21	Inhibitor, Orthophosphate	Corrosion control
MORSES POND WTP	21	pH Adjustment, Post	Corrosion control
MORSES POND WTP	21	Fluoridation	Other
MORSES POND WTP	21	Hypochlorination, Post	Disinfection
MORSES POND WTP	21	Filtration, Greensand	Iron removal
MORSES POND WTP	21	Filtration, Greensand	Manganese removal
MORSES POND WTP	21	4-Log Treatment of Viruses	Disinfection
MORSES POND WTP	21	Ion Exchange	Other
MORSES POND WTP	21	Activated Carbon, Granular	De-chlorination

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