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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	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	1	Returned to Compliance	01-JAN-2007	-	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	01V0001	Known	01-JAN-2000	31-MAR-2000	No
TT	Public Education	Lead and Copper Rule	Lead and Copper Rule	98V0001	Returned to Compliance	01-JAN-1997	-	Yes
MR	Monitoring, Regular	Inorganic Chemicals	Beryllium, Total	97V0013	Known	01-JAN-1997	31-MAR-1997	No
MR	Monitoring, Regular	Inorganic Chemicals	Thallium, Total	97V0014	Known	01-JAN-1997	31-MAR-1997	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	97V0001	Known	01-JAN-1997	31-MAR-1997	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	97V0002	Known	01-JAN-1997	31-MAR-1997	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	97V0003	Known	01-JAN-1997	31-MAR-1997	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	97V0012	Known	01-JAN-1997	31-MAR-1997	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	97V0004	Known	01-JAN-1997	31-MAR-1997	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	97V0009	Known	01-JAN-1997	31-MAR-1997	No
MR	Monitoring, Regular	Inorganic Chemicals	Nickel	97V0008	Known	01-JAN-1997	31-MAR-1997	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	97V0007	Known	01-JAN-1997	31-MAR-1997	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	97V0006	Known	01-JAN-1997	31-MAR-1997	No
MR	Monitoring, Regular	Inorganic Chemicals	CYANIDE	97V0005	Known	01-JAN-1997	31-MAR-1997	No
MR	Monitoring, Repeat Major (TCR)	Total Coliform Rule	Coliform (TCR)	96V0001	Known	01-JUL-1996	31-JUL-1996	No
TT	Public Education	Lead and Copper Rule	Lead and Copper Rule	95V0001	Returned to Compliance	01-JAN-1994	-	Yes
TT	OCCT/SOWT Treatment Installation/Demonstration	Lead and Copper Rule	Lead and Copper Rule	96V0002	Returned to Compliance	01-JAN-1993	-	Yes
TT	Failure to Filter (SWTR)	Surface Water Treatment Rule	Surface Water Treatment Rule	9799999	Known	01-JAN-1992	05-MAY-2000	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9140016	Known	01-AUG-1991	31-AUG-1991	Yes
MR	Monitoring, Repeat Minor (TCR)	Total Coliform Rule	Coliform (TCR)	9140015	Known	01-AUG-1991	31-AUG-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
31	1	SOX	State Compliance achieved	07-NOV-2007	State	-
25	95V0001	SOX	State Compliance achieved	06-AUG-2003	State	-
25	96V0002	SOX	State Compliance achieved	06-AUG-2003	State	-
25	98V0001	SOX	State Compliance achieved	06-AUG-2003	State	-
15	01V0001	SFL	State Administrative/Compliance Order without penalty issued	12-FEB-2001	State	BY FREDERIK SCHUELE
8	97V0007	SFL	State Administrative/Compliance Order without penalty issued	27-AUG-1997	State	-
8	97V0008	SFL	State Administrative/Compliance Order without penalty issued	27-AUG-1997	State	-
8	97V0009	SFL	State Administrative/Compliance Order without penalty issued	27-AUG-1997	State	-
8	97V0012	SFL	State Administrative/Compliance Order without penalty issued	27-AUG-1997	State	-
8	97V0013	SFL	State Administrative/Compliance Order without penalty issued	27-AUG-1997	State	-
8	97V0014	SFL	State Administrative/Compliance Order without penalty issued	27-AUG-1997	State	-
8	97V0006	SFL	State Administrative/Compliance Order without penalty issued	27-AUG-1997	State	-
8	97V0005	SFL	State Administrative/Compliance Order without penalty issued	27-AUG-1997	State	-
8	97V0004	SFL	State Administrative/Compliance Order without penalty issued	27-AUG-1997	State	-
8	97V0003	SFL	State Administrative/Compliance Order without penalty issued	27-AUG-1997	State	-
8	97V0002	SFL	State Administrative/Compliance Order without penalty issued	27-AUG-1997	State	-
8	97V0001	SFL	State Administrative/Compliance Order without penalty issued	27-AUG-1997	State	-
7	96V0001	SIE	State Public Notification requested	10-AUG-1996	State	-
9799999	9799999	SFL	State Administrative/Compliance Order without penalty issued	29-JUN-1993	ODSWeb	-
9140016	9140015	SIF	State Public Notification received	05-NOV-1991	State	-
9140016	9140016	SIF	State Public Notification received	05-NOV-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
MWRA 200	11	Yes	Consecutive Connection	Surface water	Permanent	Active
G.P. WELL I	9	Yes	Well	Ground water	Permanent	Active
G.P. WELL B	3	Yes	Well	Ground water	Permanent	Active
G.P. WELL C2	2	Yes	Well	Ground water	Permanent	Active
G.P. WELL D2	17	Yes	Well	Ground water	Permanent	Active
G.P. WELL A2	10	Yes	Well	Ground water	Permanent	Active
G.P. WELL D	1	Yes	Well	Ground water	Emergency	Inactive
G.P. WELL H	8	Yes	Well	Ground water	Emergency	Active
G.P. WELL G	7	Yes	Well	Ground water	Emergency	Active
G.P. WELL E	6	Yes	Well	Ground water	Emergency	Active
G.P. WELL F	5	Yes	Well	Ground water	Emergency	Active
DUG WELL	4	Yes	Well	Ground water	Emergency	Active
MWRA 230	12	Yes	Consecutive Connection	Surface water	Permanent	Active
HORN POND	13	Yes	Intake	Surface water	Emergency	Inactive
G.P. WELL D2 PUMP	18	No	Pump Facility	-	-	Active
BLUEBERRY HILL BOOSTER PUMP STATION	23	No	Pump Facility	-	-	Active
JANIS TERRACE BOOSTER PUMP STATION	25	No	Pump Facility	-	-	Active
MONTVALE AVE BOOSTER PUMP STATION	26	No	Pump Facility	-	-	Active
SHAKER GLEN BOOSTER PUMP STATION	27	No	Pump Facility	-	-	Active
G.P. WELL A2 PUMP	28	No	Pump Facility	-	-	Active
G.P. WELL B PUMP	29	No	Pump Facility	-	-	Active
G.P. WELL C2 PUMP	30	No	Pump Facility	-	-	Active
G.P. WELL I PUMP	31	No	Pump Facility	-	-	Active
WOBURN HEIGHTS BOOSTER PUMP STATION	32	No	Pump Facility	-	-	Active
WALTHAM STREET TANK (ZION HILL)	19	No	Storage	-	-	Active
WHISPERING HILL TANK	21	No	Storage	-	-	Active
HILLSIDE AVENUE TANK (NEW RAG ROCK TANK)	22	No	Storage	-	-	Active
OLD RAG ROCK TANK	20	No	Storage	-	-	Inactive
HORN POND WTP	15	No	Treatment Plant	-	-	Active
G.P. WELL A2 WTP	16	No	Treatment Plant	-	-	Inactive

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
HORN POND WTP	15	pH Adjustment	Corrosion control
HORN POND WTP	15	Hypochlorination, Post	Disinfection
HORN POND WTP	15	Fluoridation	Other
HORN POND WTP	15	4-Log Treatment of Viruses	Disinfection
HORN POND WTP	15	Filtration, Greensand	Iron removal
HORN POND WTP	15	Filtration, Greensand	Manganese removal
HORN POND WTP	15	Ultraviolet Radiation	Disinfection
G.P. WELL A2 WTP	16	Activated Carbon, Granular	Organics removal

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