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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	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	Lead and Copper Rule	903352509	Returned to Compliance	01-JAN-2025	-	No
MR	Monitoring, Source Water (GWR)	Ground Water Rule	E. COLI	903352504	Returned to Compliance	25-JUL-2020	-	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	3353107	Returned to Compliance	01-JAN-2006	31-DEC-2006	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	3353005	Returned to Compliance	01-MAR-2005	31-MAR-2005	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	3352604	Returned to Compliance	01-JAN-2003	31-DEC-2003	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	14002	Returned to Compliance	01-NOV-2001	30-NOV-2001	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	274301	Returned to Compliance	01-APR-2001	30-APR-2001	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	144999	Returned to Compliance	01-JAN-1999	31-JAN-1999	No
MR	Monitoring, Repeat Major (TCR)	Total Coliform Rule	Coliform (TCR)	996	Returned to Compliance	01-OCT-1995	31-OCT-1995	No
MR	Monitoring, Repeat Minor (TCR)	Total Coliform Rule	Coliform (TCR)	10394	Returned to Compliance	01-NOV-1993	30-NOV-1993	No
MR	Monitoring, Repeat Major (TCR)	Total Coliform Rule	Coliform (TCR)	3352393	Returned to Compliance	01-JUL-1993	31-JUL-1993	No
MR	Monitoring, Repeat Minor (TCR)	Total Coliform Rule	Coliform (TCR)	3000393	Returned to Compliance	01-MAR-1993	31-MAR-1993	No
MR	Monitoring, Repeat Major (TCR)	Total Coliform Rule	Coliform (TCR)	2747793	Known	01-JAN-1993	31-JAN-1993	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	2364692	Returned to Compliance	01-AUG-1992	31-AUG-1992	No
MR	Monitoring, Repeat Minor (TCR)	Total Coliform Rule	Coliform (TCR)	2142592	Returned to Compliance	01-MAY-1992	31-MAY-1992	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	1820692	Returned to Compliance	01-FEB-1992	29-FEB-1992	No
MR	Monitoring, Repeat Major (TCR)	Total Coliform Rule	Coliform (TCR)	1599992	Known	01-OCT-1991	31-OCT-1991	No
MR	Monitoring, Repeat Minor (TCR)	Total Coliform Rule	Coliform (TCR)	1599991	Returned to Compliance	01-OCT-1991	31-OCT-1991	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	1064491	Returned to Compliance	01-MAR-1991	31-MAR-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
122	903352509	SOX	State Compliance achieved	06-AUG-2025	State	-
120	903352504	SOX	State Compliance achieved	15-JUN-2021	State	-
118	3353107	SOX	State Compliance achieved	14-SEP-2007	State	-
111	3353005	SOX	State Compliance achieved	03-MAY-2005	State	-
104	3352604	SOX	State Compliance achieved	12-AUG-2004	State	VALIDATED Migrated SOX 08/30/2004 Due to Sample #04211/01 Taken 07/29/2004.
105	14002	SOX	State Compliance achieved	27-DEC-2001	State	-
115	2142592	SOX	State Compliance achieved	30-JUL-2001	State	-
110	2364692	SOX	State Compliance achieved	30-JUL-2001	State	-
116	3000393	SOX	State Compliance achieved	30-JUL-2001	State	-
117	3352393	SOX	State Compliance achieved	30-JUL-2001	State	-
109	1820692	SOX	State Compliance achieved	30-JUL-2001	State	-
114	1599991	SOX	State Compliance achieved	30-JUL-2001	State	-
108	1064491	SOX	State Compliance achieved	30-JUL-2001	State	-
107	274301	SOX	State Compliance achieved	30-JUL-2001	State	-
106	144999	SOX	State Compliance achieved	30-JUL-2001	State	-
112	996	SOX	State Compliance achieved	30-JUL-2001	State	-
113	10394	SOX	State Compliance achieved	30-JUL-2001	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
JOINT WATER COMMISSION (00379)	12063	Yes	Consecutive Connection	Surface water	Permanent	Active
ASR WELL #7	26750	Yes	Well	Ground water	Seasonal	Active
ASR WELL #5	26737	Yes	Well	Ground water	Seasonal	Active
ASR WELL #4	22042	Yes	Well	Ground water	Seasonal	Active
ASR WELL #2	18540	Yes	Well	Ground water	Seasonal	Active
ASR WELL #1 (OLD HANSON WELL)	1623	Yes	Well	Ground water	Other	Inactive
COMMON HEADER FOR WTP-B	20431	No	Common Headers	-	-	Active
COMMON HEADER FOR WTP-A	20690	No	Common Headers	-	-	Active
COMMON HEADER FOR WTP-C	26751	No	Common Headers	-	-	Active
DISTRIBUTION SYSTEM	6786	No	Distribution System/Zone	-	-	Active
EP FOR JOINT WATER COMMISSION	12341	No	Sampling Station	-	-	Active
EP FOR ASR WELLS	17030	No	Sampling Station	-	-	Active
EP FOR ASR WELL #7	26753	No	Sampling Station	-	-	Active
TP FOR ASR WELLS	1441	No	Treatment Plant	-	-	Active
TP FOR JWC WTP - TUALATIN RIVER	18839	No	Treatment Plant	-	-	Active
TP FOR ASR WELL #7	26752	No	Treatment Plant	-	-	Active

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
TP FOR ASR WELLS	1441	Innovative	Other
TP FOR ASR WELLS	1441	Fluoridation	Other
TP FOR ASR WELLS	1441	Innovative	Corrosion control
TP FOR JWC WTP - TUALATIN RIVER	18839	Fluoridation	Other
TP FOR ASR WELL #7	26752	Innovative	Other
TP FOR ASR WELL #7	26752	Fluoridation	Other
TP FOR ASR WELL #7	26752	Innovative	Corrosion control

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