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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	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	9912004	Returned to Compliance	01-OCT-2021	31-DEC-2021	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	9912005	Returned to Compliance	01-JAN-2021	31-DEC-2021	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	519011	Returned to Compliance	01-JUN-2005	30-JUN-2005	No
MR	Monitoring, Repeat Major (TCR)	Total Coliform Rule	Coliform (TCR)	519010	Returned to Compliance	01-MAY-2005	31-MAY-2005	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	519009	Returned to Compliance	01-APR-2005	30-APR-2005	No
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	519008	Returned to Compliance	01-APR-2005	30-JUN-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	519007	Returned to Compliance	01-JAN-2005	31-MAR-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	519006	Returned to Compliance	01-OCT-2004	31-DEC-2004	Yes
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	419005	Returned to Compliance	01-NOV-2003	30-NOV-2003	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	319004	Returned to Compliance	01-APR-2003	30-APR-2003	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	319003	Returned to Compliance	01-DEC-2002	31-DEC-2002	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9912001	Returned to Compliance	01-JUL-1999	31-JUL-1999	Yes
MR	Monitoring, Regular	Nitrate Rule	Nitrate	9819002	Returned to Compliance	01-JAN-1998	31-DEC-2001	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
719040	9912004	SOX	State Compliance achieved	22-MAY-2025	State	RTC'd.
719040	9912005	SOX	State Compliance achieved	22-MAY-2025	State	RTC'd.
719030	519008	SOX	State Compliance achieved	03-DEC-2018	State	-
719030	519007	SOX	State Compliance achieved	03-DEC-2018	State	-
719030	519006	SOX	State Compliance achieved	03-DEC-2018	State	-
619026	519011	SIA	State Violation/Reminder Notice	10-AUG-2005	State	ENF_NO:#03-19-05E-038; ENF LTR SENT DIDNT COLLECT ENOUGH ROUTINE MONTHLY SAMPLES FOR JUN 05
719035	519010	SOX	State Compliance achieved	30-JUN-2005	State	This TCR violation has been closed with this SOX enforcement record due to rTCR implementation on 4/1/2016.
619023	519009	SIA	State Violation/Reminder Notice	02-JUN-2005	State	ENF_NO:03-19-05E-024; ENFORCEMENT LETTER SENT NOT ENOUGH ROUTINE SAMPLES
719033	419005	SOX	State Compliance achieved	30-DEC-2003	State	This TCR violation has been closed with this SOX enforcement record due to rTCR implementation on 4/1/2016.
719032	319004	SOX	State Compliance achieved	30-MAY-2003	State	This TCR violation has been closed with this SOX enforcement record due to rTCR implementation on 4/1/2016.
319006	319003	SIA	State Violation/Reminder Notice	03-FEB-2003	State	ENF_NO:#03-19-03E-005; SENT ENF.LET 2/03/03 NOT ENOUGH MONTHLY SAMPLES
219002	9819002	SIA	State Violation/Reminder Notice	09-MAY-2002	State	ENF_NO:03-19-02E-104;
19001	9912001	SFL	State Administrative/Compliance Order without penalty issued	03-SEP-1999	State	ENF_NO:03-12-99C-039; TCR MCL VIOL. JULY 1999 COLLECT FIVE SAMPLES AUG.

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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
CA AQUEDUCT - RAW	26982	Yes	Intake	Surface water	Permanent	Active
TRC200 WELL	57130	Yes	Well	Ground water	Permanent	Active
ROSE STATION WELL - INAC	CA1503341001	Yes	Well	Ground water	Other	Inactive
ROSE STATION WELL - DESTROYED	11473	Yes	Well	Ground water	Other	Inactive
TRC201 WELL-STANDBY	57132	Yes	Well	Ground water	Emergency	Active
DISTRIBUTION SYSTEM	26983	No	Distribution System/Zone	-	-	Active
FINISHED WATER TANK AT SWTP	74593	No	Storage	-	-	Active
CA AQUEDUCT - TREATED (SWT PLANT)	5348	No	Treatment Plant	-	-	Active
TRC200 WELL - CL2 TREATMENT	57131	No	Treatment Plant	-	-	Active
TRC201 WELL - CL2 TREATMENT-STANDBY	57133	No	Treatment Plant	-	-	Active
ROSE STATION WELL - CL2 TREATMENT - INAC	5347	No	Treatment Plant	-	-	Inactive

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
CA AQUEDUCT - TREATED (SWT PLANT)	5348	4-Log Remove/Inactivate Viruses	Disinfection
CA AQUEDUCT - TREATED (SWT PLANT)	5348	Hypochlorination, Post	Disinfection
TRC200 WELL - CL2 TREATMENT	57131	Hypochlorination, Post	Disinfection
TRC201 WELL - CL2 TREATMENT-STANDBY	57133	Hypochlorination, Post	Disinfection

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