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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	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	1007216	Returned to Compliance	01-JAN-2026	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	1007215	Open	01-JUL-2025	-	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	1007213	Returned to Compliance	01-OCT-2021	31-OCT-2021	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	1007214	Returned to Compliance	01-OCT-2021	31-OCT-2021	No
TT	Treatment Technique No Certif. Operator	Stage 1 Disinfectants and Disinfection Byproducts Rule	Stage 1 Disinfectants and Disinfection Byproducts Rule	1007211	Returned to Compliance	17-SEP-2014	-	Yes
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	1007212	Returned to Compliance	01-SEP-2014	30-SEP-2014	No
MR	Monitoring, Source Water (LT2)	Long Term 2 Enhanced Surface Water Treatment Rule	E. COLI	1007208	Returned to Compliance	01-DEC-2008	31-DEC-2008	No
MR	Monitoring, Source Water (LT2)	Long Term 2 Enhanced Surface Water Treatment Rule	E. COLI	1007207	Returned to Compliance	01-NOV-2008	30-NOV-2008	No
MR	Monitoring, Source Water (LT2)	Long Term 2 Enhanced Surface Water Treatment Rule	E. COLI	1007206	Returned to Compliance	01-OCT-2008	31-OCT-2008	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	1006999	Returned to Compliance	01-OCT-1998	31-OCT-1998	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
1027129	1007216	SOX	State Compliance achieved	06-JAN-2026	State	SOXing; the LCN was distributed and a copy along with the COD has been submitted. MM 2/5/2026
1027126	1007215	SIE	State Public Notification requested	15-JUL-2025	State	-
1027124	1007214	SOX	State Compliance achieved	16-NOV-2021	State	late reporting
1027124	1007213	SOX	State Compliance achieved	16-NOV-2021	State	late reporting
1027119	1007212	SOX	State Compliance achieved	31-MAR-2015	State	6 months in compliance
1027116	1007211	SOX	State Compliance achieved	06-OCT-2014	State	PWS submitted new ORC form
1027114	1007208	SOX	State Compliance achieved	01-APR-2009	State	System tok make up samples 3/19/09 to RTC 4/1/09 jkc
1027109	1007206	SOX	State Compliance achieved	11-MAR-2009	State	Received make up sample for October missed sampling jkc
1027109	1007207	SOX	State Compliance achieved	11-MAR-2009	State	Received make up sample for October missed sampling jkc
1027106	1006999	SOX	State Compliance achieved	09-APR-2008	State	>6 mo wo violations. SOXd. aj

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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
BIG MOLAS LAKE	22280	Yes	Intake	Surface water	Emergency	Active
BEAR CREEK BLENDED	524	Yes	Intake	Surface water	Permanent	Active
BOULDER CREEK BLENDED	523	Yes	Intake	Surface water	Permanent	Active
GALVIN CREEK	13674	Yes	Intake	Surface water	Permanent	Active
DISTRIBUTION SYSTEM	7209	No	Distribution System/Zone	-	-	Active
COMBINED RAW SOURCE	14054	No	Sampling Station	-	-	Active
SAMPLING STATION	22970	No	Sampling Station	-	-	Active
SUBLEVEL TANK	21147	No	Storage	-	-	Active
ABOVE GROUND TANK	21148	No	Storage	-	-	Active
SILVERTON SWTP01	4450	No	Treatment Plant	-	-	Active

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
SILVERTON SWTP01	4450	Innovative	Disinfection
SILVERTON SWTP01	4450	Gaseous Chlorination, Pre	Disinfection
SILVERTON SWTP01	4450	Coagulation	Particulate removal
SILVERTON SWTP01	4450	Flocculation	Particulate removal
SILVERTON SWTP01	4450	Sedimentation	Particulate removal
SILVERTON SWTP01	4450	Filtration, Rapid Sand	Particulate removal
SILVERTON SWTP01	4450	Gaseous Chlorination, Post	Disinfection

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