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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	8	Open	01-JUN-2023	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	7	Returned to Compliance	01-JUN-2016	-	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	5	Returned to Compliance	01-JAN-2014	31-MAR-2014	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	4	Returned to Compliance	01-JUN-2013	30-JUN-2013	Yes
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	3	Returned to Compliance	01-JUL-2012	31-JUL-2012	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	1	Known	01-APR-2008	30-JUN-2008	No
TT	Public Education	Lead and Copper Rule	Lead and Copper Rule	99V0002	Returned to Compliance	01-JAN-1998	-	Yes
MCL	Maximum Contaminant Level Violation, Average	Former Total Trihalomethane Rule	TTHM	98V0001	Known	01-OCT-1997	30-SEP-1998	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	97V0001	Known	01-AUG-1997	31-AUG-1997	Yes
TT	OCCT/SOWT Treatment Installation/Demonstration	Lead and Copper Rule	Lead and Copper Rule	99V0001	Returned to Compliance	01-JAN-1997	-	Yes
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	96V0002	Known	01-JUN-1996	30-JUN-1996	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	96V0001	Known	01-MAY-1996	31-MAY-1996	No
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, Acute (TCR)	Total Coliform Rule	Coliform (TCR)	95V0001	Known	01-OCT-1994	31-OCT-1994	Yes
MR	Monitoring, Repeat Minor (TCR)	Total Coliform Rule	Coliform (TCR)	94V0002	Known	01-SEP-1993	30-SEP-1993	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	9210002	Known	01-DEC-1991	31-DEC-1991	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	9220003	Returned to Compliance	01-OCT-1991	31-OCT-1991	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	9210001	Known	01-OCT-1991	31-OCT-1991	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
55	8	SFL	State Administrative/Compliance Order without penalty issued	01-DEC-2023	State	LCR LATE CONSUMER NOTIFICATION
53	7	SOX	State Compliance achieved	21-JUN-2016	State	-
48	5	SOX	State Compliance achieved	21-MAY-2014	State	EPA RTC
47	4	SOX	State Compliance achieved	01-AUG-2013	State	RTC PDU for EPA
49	3	SOX	State Compliance achieved	30-AUG-2012	State	EPA RTC
38	1	SFL	State Administrative/Compliance Order without penalty issued	24-JUL-2008	State	MISSING PCE FOR 7 LOCATIONS FOR 2QTR 2008
32	99V0002	SOX	State Compliance achieved	07-JUL-2003	State	-
32	99V0001	SOX	State Compliance achieved	07-JUL-2003	State	-
16	98V0001	SFL	State Administrative/Compliance Order without penalty issued	04-SEP-1998	State	-
14	97V0001	SIF	State Public Notification received	17-AUG-1997	State	-
13	96V0002	SIE	State Public Notification requested	22-AUG-1996	State	-
12	96V0001	SIE	State Public Notification requested	22-AUG-1996	State	-
11	95V0002	SIE	State Public Notification requested	10-JUL-1995	State	-
10	95V0001	SFH	State Boil Water Order	10-NOV-1994	State	-
8	94V0002	SIE	State Public Notification requested	28-OCT-1993	State	COMPLIANCE ACHIEVED 12-93
9230020	9220003	SOX	State Compliance achieved	01-JUN-1992	State	-
9210001	9210001	SIA	State Violation/Reminder Notice	10-JAN-1992	State	-
9210001	9210002	SIA	State Violation/Reminder Notice	10-JAN-1992	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
SOUTHBOROUGH SUPPLY (MWRA)	21	Yes	Consecutive Connection	Surface water	Emergency	Active
HOWE ST. GP WELL 6	7	Yes	Well	Ground water	Permanent	Active
HOWE ST. GP WELL 5	5	Yes	Well	Ground water	Permanent	Active
HOWE ST. GP WELL 4	4	Yes	Well	Ground water	Permanent	Active
HOWE ST. GP WELL 8	13	Yes	Well	Ground water	Permanent	Active
HOWE ST. GP WELL 7	11	Yes	Well	Ground water	Permanent	Active
CEDAR ST. WELLS	6	Yes	Well	Ground water	Emergency	Inactive
HIGH ST. WELL #3	3	Yes	Well	Ground water	Emergency	Inactive
HIGH ST. WELL #2	2	Yes	Well	Ground water	Emergency	Inactive
HIGH ST. WELL #1	1	Yes	Well	Ground water	Emergency	Inactive
HOWE ST. GP WELL 7 PUMP	12	No	Pump Facility	-	-	Active
HOWE ST. GP WELL 8 PUMP	14	No	Pump Facility	-	-	Active
HOWE ST. GP WELL 4 PUMP	16	No	Pump Facility	-	-	Active
HOWE ST. GP WELL 5 PUMP	17	No	Pump Facility	-	-	Active
RUSSETT HILL BOOSTER STATION	19	No	Pump Facility	-	-	Active
HOWE ST. GP WELL 6 PUMP	20	No	Pump Facility	-	-	Active
INDEPENDENCE LANE BOOSTER STATION	22	No	Pump Facility	-	-	Active
WOODRIDGE	10	No	Storage	-	-	Active
CEDAR ST	9	No	Storage	-	-	Active
HOWE ST. WATER TREATMENT FACILITY	15	No	Treatment Plant	-	-	Active
MWRA SOUTHBORO INTERCONNECT	23	No	Treatment Plant	-	-	Active
HOWE STREET CHEM. ADDN. FACILITY	8	No	Treatment Plant	-	-	Inactive

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
HOWE ST. WATER TREATMENT FACILITY	15	Ozonation, Pre	Manganese removal
HOWE ST. WATER TREATMENT FACILITY	15	Permanganate	Manganese removal
HOWE ST. WATER TREATMENT FACILITY	15	Coagulation	Particulate removal
HOWE ST. WATER TREATMENT FACILITY	15	Filtered	Particulate removal
HOWE ST. WATER TREATMENT FACILITY	15	Activated Carbon, Granular	Disinfection by-products control
HOWE ST. WATER TREATMENT FACILITY	15	pH Adjustment	Corrosion control
HOWE ST. WATER TREATMENT FACILITY	15	Inhibitor, Orthophosphate	Corrosion control
HOWE ST. WATER TREATMENT FACILITY	15	Gaseous Chlorination, Post	Disinfection
HOWE ST. WATER TREATMENT FACILITY	15	Chloramines	Disinfection
HOWE ST. WATER TREATMENT FACILITY	15	4-Log Treatment of Viruses	Disinfection
HOWE ST. WATER TREATMENT FACILITY	15	4-Log Treatment of Viruses	Disinfection
MWRA SOUTHBORO INTERCONNECT	23	Inhibitor, Orthophosphate	Corrosion control

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