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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, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	2200017	Returned to Compliance	01-JAN-2022	31-MAR-2022	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	1800016	Open	27-MAR-2017	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	1600014	Open	08-DEC-2016	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	1800015	Returned to Compliance	01-OCT-2016	31-DEC-2016	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	1600013	Returned to Compliance	01-JUL-2016	30-SEP-2016	Yes
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	1500011	Known	01-OCT-2014	31-OCT-2014	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	1500011	Returned to Compliance	01-OCT-2014	31-OCT-2014	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	1300009	Returned to Compliance	01-OCT-2012	31-OCT-2012	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	0500007	Returned to Compliance	01-JAN-2005	31-MAR-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	0300006	Returned to Compliance	01-APR-2003	30-JUN-2003	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	0300005	Returned to Compliance	01-JAN-2003	31-MAR-2003	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	0100003	Returned to Compliance	01-FEB-2001	28-FEB-2001	Yes
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	9700002	Returned to Compliance	01-SEP-1997	30-SEP-1997	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
2200053	2200017	SOX	State Compliance achieved	06-JUL-2022	State	-
1700049	1800015	SOX	State Compliance achieved	11-JUL-2017	State	-
1700048	1600013	SOX	State Compliance achieved	11-JUL-2017	State	-
1500034	1500011	SIF	State Public Notification received	01-DEC-2014	State	-
1300028	1300009	SOX	State Compliance achieved	25-APR-2013	State	-
600024	0500007	SOX	State Compliance achieved	10-MAR-2006	State	-
400016	0300006	SIF	State Public Notification received	13-NOV-2003	State	-
400018	0300005	SOX	State Compliance achieved	08-OCT-2003	State	-
0100007	0100003	SOX	State Compliance achieved	07-AUG-2001	State	-
9800003	9700002	SOX	State Compliance achieved	15-JUN-1998	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
ROCHESTER RESERVOIR /RAW	1	Yes	Intake	Surface water	Permanent	Active
COCHECO GPW WELL /1200' SE OF PH	3	Yes	Well	Ground water	Permanent	Active
TREATMENT PLANT /FINISHED	2	No	Treatment Plant	-	-	Active
TREATMENT FACILITY/COCHECO GPW WELL	503	No	Treatment Plant	-	-	Active

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
TREATMENT PLANT /FINISHED	2	Filtration, Rapid Sand	Particulate removal
TREATMENT PLANT /FINISHED	2	Filtered	Particulate removal
TREATMENT PLANT /FINISHED	2	Fluoridation	Other
TREATMENT PLANT /FINISHED	2	Permanganate	Manganese removal
TREATMENT PLANT /FINISHED	2	Activated Alumina	Inorganics removal
TREATMENT PLANT /FINISHED	2	Coagulation	Particulate removal
TREATMENT PLANT /FINISHED	2	Flocculation	Particulate removal
TREATMENT PLANT /FINISHED	2	Sedimentation	Particulate removal
TREATMENT PLANT /FINISHED	2	Activated Carbon, Granular	Taste / odor control
TREATMENT PLANT /FINISHED	2	pH Adjustment, Post	Corrosion control
TREATMENT PLANT /FINISHED	2	Sludge Treatment	Particulate removal
TREATMENT PLANT /FINISHED	2	pH Adjustment, Pre	Particulate removal
TREATMENT PLANT /FINISHED	2	Hypochlorination, Post	Disinfection
TREATMENT FACILITY/COCHECO GPW WELL	503	Sequestration	Manganese removal
TREATMENT FACILITY/COCHECO GPW WELL	503	pH Adjustment, Post	Corrosion control
TREATMENT FACILITY/COCHECO GPW WELL	503	Hypochlorination, Post	Disinfection
TREATMENT FACILITY/COCHECO GPW WELL	503	Fluoridation	Other

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