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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
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	4875814	Returned to Compliance	01-MAY-2024	31-MAY-2024	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	4875815	Returned to Compliance	01-MAY-2024	31-MAY-2024	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	4875816	Returned to Compliance	01-APR-2024	30-JUN-2024	No
MR	Failure Submit IDSE/Subpart V Plan Rpt	Stage 2 Disinfectants and Disinfection Byproducts Rule	Stage 2 Disinfectants and Disinfection Byproducts Rule	4875811	Returned to Compliance	02-JAN-2009	-	No
MR	Monitoring, Repeat Minor (TCR)	Total Coliform Rule	Coliform (TCR)	4875808	Returned to Compliance	01-OCT-2008	31-OCT-2008	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	4875807	Returned to Compliance	01-SEP-2008	30-SEP-2008	Yes
MR	Monitoring, Repeat Minor (TCR)	Total Coliform Rule	Coliform (TCR)	4875806	Returned to Compliance	01-DEC-2005	31-DEC-2005	No
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	4875704	Returned to Compliance	01-JUL-2003	30-SEP-2003	Yes
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	3315097	Known	01-JUN-1997	30-JUN-1997	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	2337493	Returned to Compliance	01-DEC-1992	31-DEC-1992	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	2330293	Returned to Compliance	01-OCT-1992	31-OCT-1992	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	2049993	Returned to Compliance	01-SEP-1992	30-SEP-1992	Yes
MCL	Maximum Contaminant Level Violation, Average	Former Total Trihalomethane Rule	TTHM	184	Known	18-JUL-1984	17-JUL-1985	Yes
MCL	Maximum Contaminant Level Violation, Average	Former Total Trihalomethane Rule	TTHM	262184	Known	01-APR-1984	30-JUN-1984	Yes
MCL	Maximum Contaminant Level Violation, Average	Former Total Trihalomethane Rule	TTHM	259684	Known	01-JAN-1984	31-MAR-1984	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
2624630	4875815	SIF	State Public Notification received	28-APR-2025	State	-
2624631	4875816	SIF	State Public Notification received	28-APR-2025	State	-
2624629	4875814	SIF	State Public Notification received	28-APR-2025	State	-
2624617	4875811	SOX	State Compliance achieved	15-FEB-2011	State	-
2624616	4875808	SOX	State Compliance achieved	06-JAN-2011	State	-
2624612	4875807	SOX	State Compliance achieved	01-NOV-2008	State	-
2624607	4875806	SOX	State Compliance achieved	23-JUL-2007	State	-
2624304	4875704	SOX	State Compliance achieved	26-FEB-2004	State	-
1534997	3315097	SIF	State Public Notification received	08-AUG-1997	State	-
1178093	2337493	SOX	State Compliance achieved	10-DEC-1993	State	-
1178093	2330293	SOX	State Compliance achieved	10-DEC-1993	State	-
1178093	2049993	SOX	State Compliance achieved	10-DEC-1993	State	-
259684	259684	EFJ	Federal issued Formal Notice of Violation	30-SEP-1984	State	-
259684	262184	EFJ	Federal issued Formal Notice of Violation	30-SEP-1984	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
4010001 COLUMBIA CITY OF (P40104)	9199	Yes	Consecutive Connection	Surface water	Permanent	Active
FOREST LAKE (S40103)	9198	Yes	Intake	Surface water	Other	Inactive
4010001 COLUMBIA CITY OF (P40102)	9200	Yes	Consecutive Connection	Surface water	Permanent	Active
4010001 COLUMBIA CITY OF (P40107)	9201	Yes	Consecutive Connection	Surface water	Permanent	Active
4010001 COLUMBIA CITY OF (P40106)	9202	Yes	Consecutive Connection	Surface water	Permanent	Active
4010001 COLUMBIA CITY OF (P40103)	9203	Yes	Consecutive Connection	Surface water	Permanent	Active
4010001 COLUMBIA CITY OF (P40105)	9204	Yes	Consecutive Connection	Surface water	Permanent	Active
DISTRIBUTION	10794	No	Distribution System/Zone	-	-	Active

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Treatment Processes

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No treatment process(es) found. EPA has no record of treatment process(es) reported by the primacy agency for this water system.

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