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PWS ID	MA2170000
PWS Name	MARLBOROUGH DPW WATER DIV. (MWRA)
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water purchased
Primacy Type	State
Is Wholesaler?	No
Population Served	41799
County Served	Middlesex

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
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	95	Returned to Compliance	30-DEC-2020	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	98	Returned to Compliance	01-JUL-2020	-	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	97	Known	01-NOV-2014	30-NOV-2014	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	96	Known	01-NOV-2014	30-NOV-2014	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	14	Returned to Compliance	01-OCT-2012	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	13	Returned to Compliance	01-APR-2012	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	11	Returned to Compliance	01-JUL-2011	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	9	Returned to Compliance	01-OCT-2009	-	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	8	Returned to Compliance	01-FEB-2006	28-FEB-2006	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	7	Returned to Compliance	01-JAN-2006	31-JAN-2006	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	6	Returned to Compliance	01-DEC-2005	31-DEC-2005	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	5	Returned to Compliance	01-NOV-2005	30-NOV-2005	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	4	Returned to Compliance	01-OCT-2005	31-OCT-2005	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	3	Returned to Compliance	01-SEP-2005	30-SEP-2005	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	2	Returned to Compliance	01-AUG-2005	31-AUG-2005	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	1	Returned to Compliance	01-JUL-2005	31-JUL-2005	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	04V0001	Returned to Compliance	01-JUL-2004	31-JUL-2004	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	98V0001	Returned to Compliance	01-SEP-1998	30-SEP-1998	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	96V0001	Returned to Compliance	01-JUN-1996	30-JUN-1996	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	94V0001	Returned to Compliance	01-SEP-1994	30-SEP-1994	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	93V0003	Known	01-MAY-1993	31-MAY-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
44	95	SOX	State Compliance achieved	23-MAR-2021	State	EXTRA RESULTS REPORTED LATE TO DEP; LCR CN & CN CERT DELIVERED LATE Q3-2020; M&R NOT FOLLOWING SP
42	98	SOX	State Compliance achieved	03-MAR-2021	State	M&R VIOLATION LCR Q3-2020
38	96	SFL	State Administrative/Compliance Order without penalty issued	09-MAR-2015	State	M&R THM, HAA5 DBP1, DBP2, DBP3, DBP4 WRONG MONTH (OCT) Q4 14
38	97	SFL	State Administrative/Compliance Order without penalty issued	09-MAR-2015	State	M&R THM, HAA5 DBP1, DBP2, DBP3, DBP4 WRONG MONTH (OCT) Q4 14
36	13	SOX	State Compliance achieved	21-JUN-2013	State	M&R LCR 60 TAPS Q2 12, Q4 12
36	14	SOX	State Compliance achieved	21-JUN-2013	State	M&R LCR 60 TAPS Q2 12, Q4 12
29	11	SOX	State Compliance achieved	01-JUL-2012	State	M&R VIOLATION LCR Q4-2011, SAMPLED 6/13/12 & CCR PN
23	9	SOX	State Compliance achieved	29-JUN-2010	State	M&R LCR - 60 TAPS (Q4-09)
18	6	SOX	State Compliance achieved	02-APR-2007	State	SWTR TT VIOLATIONS - COMPLIED WITH NON ACTIONS
18	7	SOX	State Compliance achieved	02-APR-2007	State	SWTR TT VIOLATIONS - COMPLIED WITH NON ACTIONS
18	8	SOX	State Compliance achieved	02-APR-2007	State	SWTR TT VIOLATIONS - COMPLIED WITH NON ACTIONS
18	5	SOX	State Compliance achieved	02-APR-2007	State	SWTR TT VIOLATIONS - COMPLIED WITH NON ACTIONS
18	3	SOX	State Compliance achieved	02-APR-2007	State	SWTR TT VIOLATIONS - COMPLIED WITH NON ACTIONS
18	2	SOX	State Compliance achieved	02-APR-2007	State	SWTR TT VIOLATIONS - COMPLIED WITH NON ACTIONS
18	1	SOX	State Compliance achieved	02-APR-2007	State	SWTR TT VIOLATIONS - COMPLIED WITH NON ACTIONS
18	4	SOX	State Compliance achieved	02-APR-2007	State	SWTR TT VIOLATIONS - COMPLIED WITH NON ACTIONS
14	04V0001	SOX	State Compliance achieved	03-SEP-2004	State	TCR MONTHLY VIOLATION FOR JULY 2004
8	98V0001	SOX	State Compliance achieved	16-NOV-1998	State	MONTHLY MCL VIOLATION BACT 9/98
6	96V0001	SOX	State Compliance achieved	26-AUG-1996	State	BACT MCL JUNE/1996
5	94V0001	SOX	State Compliance achieved	31-OCT-1994	State	BACT-NVC(MONTHLY MCL)-SEP/94-1ST/12MTHS
3	93V0003	SIF	State Public Notification received	10-JUN-1993	State	-

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
MWRA CARROLL WTP / HULTMAN AQUEDUCT	4	Yes	Consecutive Connection	Surface water	Permanent	Active
MILLHAM RESERVOIR	1	Yes	Intake	Surface water	Emergency	Inactive
LAKE WILLLIAMS	2	Yes	Intake	Surface water	Emergency	Inactive
CEDAR HILL EMERG BACKUP PUMP STATION	15	No	Pump Facility	-	-	Active
CEDAR HILL STANDBY PUMP STATION	16	No	Pump Facility	-	-	Active
CEDAR HILL PUMP STATION	7	No	Pump Facility	-	-	Active
MILLHAM INFLUENT PUMP STATION FINISHED	13	No	Pump Facility	-	-	Inactive
LAKE WILLIAMS PUMP STATION/TREATMENT PL.	8	No	Pump Facility	-	-	Inactive
MILLHAM PUMP STATION	9	No	Pump Facility	-	-	Inactive
SLIGO HILL STORAGE TANK	11	No	Storage	-	-	Active
FAIRMONT HILL STORAGE TANK	12	No	Storage	-	-	Active
SPOON HILL STORAGE TANK	14	No	Storage	-	-	Active
CEDAR HILL PUMP STATION (MWRA)	6	No	Treatment Plant	-	-	Active
LAKE WILLIAMS PUMP STATION	10	No	Treatment Plant	-	-	Inactive
MILLHAM TREATMENT PLANT	3	No	Treatment Plant	-	-	Inactive

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Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
CEDAR HILL PUMP STATION (MWRA)	6	Fluoridation	Other
CEDAR HILL PUMP STATION (MWRA)	6	Chloramines	Disinfection
CEDAR HILL PUMP STATION (MWRA)	6	Inhibitor, Orthophosphate	Corrosion control

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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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