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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
MCL	Maximum Contaminant Level Violation, E. coli (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	8	Returned to Compliance	01-OCT-2021	31-OCT-2021	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	7	Returned to Compliance	01-AUG-2015	31-AUG-2015	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	6	Returned to Compliance	01-JUL-2014	31-JUL-2014	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	5	Returned to Compliance	01-SEP-2013	30-SEP-2013	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	4	Returned to Compliance	01-SEP-2011	30-SEP-2011	Yes
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	3	Returned to Compliance	01-JUL-2011	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	1	Returned to Compliance	01-OCT-2007	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	04V0002	Known	01-OCT-2003	31-OCT-2003	Yes
MCL	Maximum Contaminant Level Violation, Acute (TCR)	Total Coliform Rule	Coliform (TCR)	04V0001	Known	01-OCT-2003	31-OCT-2003	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	02V0001	Known	01-OCT-2001	31-OCT-2001	Yes
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	99V0001	Known	01-JUN-1998	30-JUN-1998	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	97V0001	Returned to Compliance	01-JAN-1997	31-JAN-1997	Yes
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	38-STRONTIUM-90	96V0009	Known	01-OCT-1995	31-DEC-1995	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Tritium	96V0007	Known	01-OCT-1995	31-DEC-1995	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Beta Particle Activity	96V0006	Known	01-OCT-1995	31-DEC-1995	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-228	96V0005	Known	01-OCT-1995	31-DEC-1995	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-226	96V0004	Known	01-OCT-1995	31-DEC-1995	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	96V0001	Returned to Compliance	01-AUG-1995	31-AUG-1995	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	95V0001	Returned to Compliance	01-AUG-1994	31-AUG-1994	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	94V0004	Returned to Compliance	01-APR-1994	30-APR-1994	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	94V0003	Returned to Compliance	01-OCT-1993	31-OCT-1993	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	91V0002	Known	01-OCT-1991	30-NOV-1991	Yes
MCL	Maximum Contaminant Level Violation, Acute (TCR)	Total Coliform Rule	Coliform (TCR)	91V0001	Known	01-SEP-1991	30-SEP-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
36	8	SOX	State Compliance achieved	18-OCT-2021	State	RTC FOR MCLECO COMPLETED ADDITIONAL MONITORING 10/18/2021
34	7	SOX	State Compliance achieved	30-NOV-2015	State	TCR: MONMCL VIOLATION AUGUST 2015
32	6	SOX	State Compliance achieved	15-OCT-2014	State	TCR: MONMCL JULY 2014
30	5	SOX	State Compliance achieved	29-NOV-2013	State	TCR: MONMCL SEP 2013
28	4	SOX	State Compliance achieved	29-NOV-2011	State	TCR: MONMCL SEP 2011
25	3	SFL	State Administrative/Compliance Order without penalty issued	31-AUG-2011	State	NON-RTC
21	1	SOX	State Compliance achieved	19-NOV-2008	State	-
19	04V0001	SFL	State Administrative/Compliance Order without penalty issued	01-DEC-2003	State	SYSTEM ISSUED PN AS REQUIRED, CHLORINATED STORAGE TANKS AND SYSTEM, WIL CONTINUE TO SAMPLE AS REQUIRED.
19	04V0002	SFL	State Administrative/Compliance Order without penalty issued	01-DEC-2003	State	SYSTEM ISSUED PN AS REQUIRED, CHLORINATED STORAGE TANKS AND SYSTEM, WIL CONTINUE TO SAMPLE AS REQUIRED.
17	02V0001	SFL	State Administrative/Compliance Order without penalty issued	01-FEB-2002	State	COMPLIED WITH NON
13	99V0001	SFL	State Administrative/Compliance Order without penalty issued	12-FEB-1999	State	FAILED TO COLLECT REQUIRED NUMBER OF ROUTINE DISTRIBUTION SAMPLES FOR TOTAL COLIFORM BACTERIA IN JUNE 98. MUST PUBLISH PUBLIC NOTICE.
12	97V0001	SOX	State Compliance achieved	28-MAY-1997	State	PUBLISHED P. NOTICE FOR MCL VIOLATION OF TCR.
11	96V0007	SFL	State Administrative/Compliance Order without penalty issued	12-JUN-1996	State	SAMPLE RESULTS REQ.
11	96V0005	SFL	State Administrative/Compliance Order without penalty issued	12-JUN-1996	State	SAMPLE RESULTS REQ.
11	96V0004	SFL	State Administrative/Compliance Order without penalty issued	12-JUN-1996	State	SAMPLE RESULTS REQ.
11	96V0009	SFL	State Administrative/Compliance Order without penalty issued	12-JUN-1996	State	SAMPLE RESULTS REQ.
11	96V0006	SFL	State Administrative/Compliance Order without penalty issued	12-JUN-1996	State	SAMPLE RESULTS REQ.
10	96V0001	SOX	State Compliance achieved	20-OCT-1995	State	MCL TC AND E COLI AUG 1995, PUBLIC NOTICE COMPLETED.
9	95V0001	SOX	State Compliance achieved	17-OCT-1994	State	MCL VIOLATION FOR TOTAL COLIFORM BACTERIA FOR AUG. 94.
8	94V0004	SOX	State Compliance achieved	18-MAY-1994	State	-
6	94V0003	SOX	State Compliance achieved	10-NOV-1993	State	MCL TOTAL FECAL COLIFORM OCT 1993 1ST TYPE W/12MTHS
91E0002	91V0002	SFJ	State Formal Notice of Violation issued	03-DEC-1991	State	COMPLIED
91E0001	91V0001	SFJ	State Formal Notice of Violation issued	18-OCT-1991	State	COMPLIANCE LETTER SENT 10/19/91

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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
MARYS POND WELL	1	Yes	Well	Ground water	Emergency	Inactive
WOLF ISLAND STAT.	5	Yes	Well	Ground water	Permanent	Active
WEST WELL	3	Yes	Well	Ground water	Permanent	Active
MARYS POND WELLFIELD B	21	Yes	Well	Ground water	Permanent	Active
EAST WELL	2	Yes	Well	Ground water	Permanent	Active
SOUTH WELL	12	Yes	Well	Ground water	Permanent	Active
NORTH WELL	11	Yes	Well	Ground water	Permanent	Active
MAIN STAT.	4	Yes	Well	Ground water	Emergency	Inactive
PUMPING STATION E	10	No	Pump Facility	-	-	Active
MARYS POND WELLFIELD B PUMP	22	No	Pump Facility	-	-	Active
WEST WELL PUMP	24	No	Pump Facility	-	-	Active
PUMPING STATION A	6	No	Pump Facility	-	-	Active
PUMPING STATION B	7	No	Pump Facility	-	-	Active
PUMPING STATION C	8	No	Pump Facility	-	-	Active
PUMPING STATION D	9	No	Pump Facility	-	-	Active
MILL STREET STANDPIPE	16	No	Storage	-	-	Active
POINT ROAD STANDPIPE	17	No	Storage	-	-	Active
BENSON BROOK TANK	19	No	Storage	-	-	Active
GREAT HILL 1 MG TANK	20	No	Storage	-	-	Active
GREAT HILL TANK RAZED 2015	18	No	Storage	-	-	Inactive
NORTH STATION	14	No	Treatment Plant	-	-	Active
COMBINED CHEMICAL STATION	23	No	Treatment Plant	-	-	Active
MARYS POND STATION	13	No	Treatment Plant	-	-	Inactive
MAIN STATION	15	No	Treatment Plant	-	-	Inactive

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
NORTH STATION	14	pH Adjustment	Corrosion control
NORTH STATION	14	Inhibitor, Silicate	Corrosion control
MAIN STATION	15	Sequestration	Iron removal
MAIN STATION	15	pH Adjustment, Post	Corrosion control
COMBINED CHEMICAL STATION	23	pH Adjustment	Corrosion control
COMBINED CHEMICAL STATION	23	Sequestration	Iron removal
COMBINED CHEMICAL STATION	23	Hypochlorination, Post	Disinfection

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