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PWS ID	MA2270001
PWS Name	MCI SHIRLEY
PWS Type	Community water system
Owner Type	State or Territorial Government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	Yes
Population Served	3500
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	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	43	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	54	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	42	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	49	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	8	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	45	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	44	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	47	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	32	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	39	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	46	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	52	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	36	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	33	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	37	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	35	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	41	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	34	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	38	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	48	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	40	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	50	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	7	Returned to Compliance	01-DEC-2007	31-DEC-2007	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	6	Returned to Compliance	01-NOV-2007	30-NOV-2007	Yes
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	5	Returned to Compliance	01-JUL-2006	-	No
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	4	Known	01-JUL-2006	30-SEP-2006	Yes
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	2	Returned to Compliance	01-JUL-2005	-	No
MR	Monitoring, Repeat Minor (TCR)	Total Coliform Rule	Coliform (TCR)	04V0013	Known	01-AUG-2004	31-AUG-2004	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	04V0011	Known	01-AUG-2004	31-AUG-2004	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	04V0004	Known	01-DEC-2003	31-DEC-2003	Yes
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	04V0002	Known	01-OCT-2003	31-OCT-2003	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	04V0005	Returned to Compliance	01-OCT-2003	31-DEC-2003	No
MR	Monitoring, Repeat Minor (TCR)	Total Coliform Rule	Coliform (TCR)	04V0001	Known	01-SEP-2003	30-SEP-2003	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	03V0036	Known	01-MAR-2003	31-MAR-2003	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	03V0035	Known	01-JAN-2003	31-JAN-2003	No
TT	Public Education	Lead and Copper Rule	Lead and Copper Rule	3	Returned to Compliance	01-JAN-2003	-	Yes
MR	Monitoring, Regular	Arsenic Rule	Arsenic	03V0003	Known	01-OCT-2002	31-DEC-2002	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	03V0031	Known	01-JUL-2002	31-JUL-2002	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	03V0034	Returned to Compliance	01-JUL-2002	-	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	03V0002	Known	01-JUL-2002	30-SEP-2002	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	03V0030	Known	01-JUN-2002	30-JUN-2002	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	03V0029	Known	01-MAY-2002	31-MAY-2002	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	03V0024	Known	01-APR-2002	30-JUN-2002	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	03V0025	Known	01-APR-2002	30-JUN-2002	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	03V0026	Known	01-APR-2002	30-JUN-2002	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	03V0027	Known	01-APR-2002	30-JUN-2002	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	03V0028	Known	01-APR-2002	30-APR-2002	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	03V0023	Known	01-APR-2002	30-JUN-2002	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	03V0001	Known	01-APR-2002	30-JUN-2002	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	03V0022	Known	01-APR-2002	30-JUN-2002	No

1 - 50 of 99

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
49	47	SOX	State Compliance achieved	11-DEC-2008	State	NITRATE, VOC, SEECON 01G Q2 08
49	48	SOX	State Compliance achieved	11-DEC-2008	State	NITRATE, VOC, SEECON 01G Q2 08
49	49	SOX	State Compliance achieved	11-DEC-2008	State	NITRATE, VOC, SEECON 01G Q2 08
49	50	SOX	State Compliance achieved	11-DEC-2008	State	NITRATE, VOC, SEECON 01G Q2 08
49	52	SOX	State Compliance achieved	11-DEC-2008	State	NITRATE, VOC, SEECON 01G Q2 08
49	54	SOX	State Compliance achieved	11-DEC-2008	State	NITRATE, VOC, SEECON 01G Q2 08
49	8	SOX	State Compliance achieved	11-DEC-2008	State	NITRATE, VOC, SEECON 01G Q2 08
49	32	SOX	State Compliance achieved	11-DEC-2008	State	NITRATE, VOC, SEECON 01G Q2 08
49	33	SOX	State Compliance achieved	11-DEC-2008	State	NITRATE, VOC, SEECON 01G Q2 08
49	34	SOX	State Compliance achieved	11-DEC-2008	State	NITRATE, VOC, SEECON 01G Q2 08
49	35	SOX	State Compliance achieved	11-DEC-2008	State	NITRATE, VOC, SEECON 01G Q2 08
49	36	SOX	State Compliance achieved	11-DEC-2008	State	NITRATE, VOC, SEECON 01G Q2 08
49	37	SOX	State Compliance achieved	11-DEC-2008	State	NITRATE, VOC, SEECON 01G Q2 08
49	38	SOX	State Compliance achieved	11-DEC-2008	State	NITRATE, VOC, SEECON 01G Q2 08
49	39	SOX	State Compliance achieved	11-DEC-2008	State	NITRATE, VOC, SEECON 01G Q2 08
49	40	SOX	State Compliance achieved	11-DEC-2008	State	NITRATE, VOC, SEECON 01G Q2 08
49	41	SOX	State Compliance achieved	11-DEC-2008	State	NITRATE, VOC, SEECON 01G Q2 08
49	42	SOX	State Compliance achieved	11-DEC-2008	State	NITRATE, VOC, SEECON 01G Q2 08
49	43	SOX	State Compliance achieved	11-DEC-2008	State	NITRATE, VOC, SEECON 01G Q2 08
49	44	SOX	State Compliance achieved	11-DEC-2008	State	NITRATE, VOC, SEECON 01G Q2 08
49	45	SOX	State Compliance achieved	11-DEC-2008	State	NITRATE, VOC, SEECON 01G Q2 08
49	46	SOX	State Compliance achieved	11-DEC-2008	State	NITRATE, VOC, SEECON 01G Q2 08
44	7	SOX	State Compliance achieved	29-JAN-2008	State	TCR MONTHLY MAX. (MCL) FOR DECEMBER 2007
41	6	SOX	State Compliance achieved	27-DEC-2007	State	TCR MONTHLY MAX. (MCL) FOR NOVEMBER 2007
39	3	SOX	State Compliance achieved	01-AUG-2007	State	2005 CCE VIOLATIONS; INCLUDING LEAD EDUCATION FOR 2002 (HEALTH LANG. IN CCR);OTIN/CCT INSTALLATION 2/14/02 IN ACO-00-5004
39	2	SOX	State Compliance achieved	01-AUG-2007	State	2005 CCE VIOLATIONS; INCLUDING LEAD EDUCATION FOR 2002 (HEALTH LANG. IN CCR);OTIN/CCT INSTALLATION 2/14/02 IN ACO-00-5004
39	01V0002	SOX	State Compliance achieved	01-AUG-2007	State	2005 CCE VIOLATIONS; INCLUDING LEAD EDUCATION FOR 2002 (HEALTH LANG. IN CCR);OTIN/CCT INSTALLATION 2/14/02 IN ACO-00-5004
38	4	SFO	State Administrative/Compliance Order with penalty issued	14-JUN-2007	State	AMENDMENT 1 - FOR ARSENIC SUBMITTAL AND CONSTRUCTION EXECUTED 06-APR-2009. CORROSION CONTROL, SANITARY SURVEY, ARSENIC MCL (RTC FOR CCT INSTALLATION ISSUED 8/1/07;OTIN 2/14/02)
37	04V0005	SOX	State Compliance achieved	05-FEB-2007	State	M&R 02G AS Q4 03, FE Q3 03, FE Q4 03, MN Q3 03, MN Q4 03
36	5	SOX	State Compliance achieved	17-JUL-2006	State	FAILURE TO SUBMIT 2005 CCR & CERT. FORM
42	03V0034	SOX	State Compliance achieved	28-FEB-2006	State	M&R LCR JAN-JUN 2002 & JUL-DEC 2002 20 TAPS
24	04V0013	SFL	State Administrative/Compliance Order without penalty issued	13-OCT-2004	State	TCR: AUGUST MONTHLY MCL VIOLATION
24	04V0011	SFL	State Administrative/Compliance Order without penalty issued	13-OCT-2004	State	TCR: AUGUST MONTHLY MCL VIOLATION
22	04V0004	SFL	State Administrative/Compliance Order without penalty issued	15-MAR-2004	State	TCR - DEC 2003 MONTHLY MCL VIOLATION
20	04V0001	SFL	State Administrative/Compliance Order without penalty issued	31-OCT-2003	State	TCR VIOLATIONS - SEPT & OCT 2003
20	04V0002	SFL	State Administrative/Compliance Order without penalty issued	31-OCT-2003	State	TCR VIOLATIONS - SEPT & OCT 2003
17	03V0036	SFL	State Administrative/Compliance Order without penalty issued	21-MAY-2003	State	M&R: TCR JAN. & MAR. 2003
17	03V0035	SFL	State Administrative/Compliance Order without penalty issued	21-MAY-2003	State	M&R: TCR JAN. & MAR. 2003
16	03V0020	SFL	State Administrative/Compliance Order without penalty issued	14-JAN-2003	State	M&R:TCR-APR THRU JUL/2002, SEP/2001; ARSEN-Q2/Q3/Q4/2002; LCR-JAN-JUN,JUL-DEC/2002; VOC, NO3-Q2/2002
16	03V0021	SFL	State Administrative/Compliance Order without penalty issued	14-JAN-2003	State	M&R:TCR-APR THRU JUL/2002, SEP/2001; ARSEN-Q2/Q3/Q4/2002; LCR-JAN-JUN,JUL-DEC/2002; VOC, NO3-Q2/2002
16	03V0022	SFL	State Administrative/Compliance Order without penalty issued	14-JAN-2003	State	M&R:TCR-APR THRU JUL/2002, SEP/2001; ARSEN-Q2/Q3/Q4/2002; LCR-JAN-JUN,JUL-DEC/2002; VOC, NO3-Q2/2002
16	03V0023	SFL	State Administrative/Compliance Order without penalty issued	14-JAN-2003	State	M&R:TCR-APR THRU JUL/2002, SEP/2001; ARSEN-Q2/Q3/Q4/2002; LCR-JAN-JUN,JUL-DEC/2002; VOC, NO3-Q2/2002
16	03V0024	SFL	State Administrative/Compliance Order without penalty issued	14-JAN-2003	State	M&R:TCR-APR THRU JUL/2002, SEP/2001; ARSEN-Q2/Q3/Q4/2002; LCR-JAN-JUN,JUL-DEC/2002; VOC, NO3-Q2/2002
16	03V0025	SFL	State Administrative/Compliance Order without penalty issued	14-JAN-2003	State	M&R:TCR-APR THRU JUL/2002, SEP/2001; ARSEN-Q2/Q3/Q4/2002; LCR-JAN-JUN,JUL-DEC/2002; VOC, NO3-Q2/2002
16	03V0026	SFL	State Administrative/Compliance Order without penalty issued	14-JAN-2003	State	M&R:TCR-APR THRU JUL/2002, SEP/2001; ARSEN-Q2/Q3/Q4/2002; LCR-JAN-JUN,JUL-DEC/2002; VOC, NO3-Q2/2002
16	03V0027	SFL	State Administrative/Compliance Order without penalty issued	14-JAN-2003	State	M&R:TCR-APR THRU JUL/2002, SEP/2001; ARSEN-Q2/Q3/Q4/2002; LCR-JAN-JUN,JUL-DEC/2002; VOC, NO3-Q2/2002
16	03V0028	SFL	State Administrative/Compliance Order without penalty issued	14-JAN-2003	State	M&R:TCR-APR THRU JUL/2002, SEP/2001; ARSEN-Q2/Q3/Q4/2002; LCR-JAN-JUN,JUL-DEC/2002; VOC, NO3-Q2/2002
16	03V0029	SFL	State Administrative/Compliance Order without penalty issued	14-JAN-2003	State	M&R:TCR-APR THRU JUL/2002, SEP/2001; ARSEN-Q2/Q3/Q4/2002; LCR-JAN-JUN,JUL-DEC/2002; VOC, NO3-Q2/2002
16	03V0030	SFL	State Administrative/Compliance Order without penalty issued	14-JAN-2003	State	M&R:TCR-APR THRU JUL/2002, SEP/2001; ARSEN-Q2/Q3/Q4/2002; LCR-JAN-JUN,JUL-DEC/2002; VOC, NO3-Q2/2002
16	03V0031	SFL	State Administrative/Compliance Order without penalty issued	14-JAN-2003	State	M&R:TCR-APR THRU JUL/2002, SEP/2001; ARSEN-Q2/Q3/Q4/2002; LCR-JAN-JUN,JUL-DEC/2002; VOC, NO3-Q2/2002

1 - 50 of 93

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
DEVENS INTERCONNECTION	8	Yes	Consecutive Connection	Ground water	Permanent	Active
GP WELL 2	2	Yes	Well	Ground water	Permanent	Active
GP WELL 1	1	Yes	Well	Ground water	Emergency	Inactive
GP WELL # 1 PUMP	3	No	Pump Facility	-	-	Active
GP WELL # 2 PUMP	4	No	Pump Facility	-	-	Active
DEVENS INTERCONNECTION PUMP STATION	5	No	Pump Facility	-	-	Active
THE TOWER	6	No	Storage	-	-	Active
MCI SHIRLEY TREATMENT PLANT	7	No	Treatment Plant	-	-	Active

1 - 8 of 8

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
MCI SHIRLEY TREATMENT PLANT	7	pH Adjustment	Corrosion control
MCI SHIRLEY TREATMENT PLANT	7	Hypochlorination, Post	Disinfection
MCI SHIRLEY TREATMENT PLANT	7	Ultraviolet Radiation	Disinfection
MCI SHIRLEY TREATMENT PLANT	7	Filtration, Pressure Sand	Inorganics removal
MCI SHIRLEY TREATMENT PLANT	7	Sequestration	Corrosion control

1 - 5 of 5

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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