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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	TTHM	603013	Returned to Compliance	01-OCT-2023	31-DEC-2023	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	603012	Returned to Compliance	01-APR-2021	30-JUN-2021	Yes
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	603008	Returned to Compliance	01-OCT-2019	-	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	603009	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	603005	Returned to Compliance	01-OCT-2017	31-OCT-2017	No
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	603002	Returned to Compliance	01-JUL-2006	31-JUL-2006	Yes
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	603004	Returned to Compliance	01-JUN-2006	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	603003	Returned to Compliance	01-OCT-2005	31-DEC-2005	Yes
MR	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	Lead and Copper Rule	95V0001	Returned to Compliance	01-JUL-1993	31-DEC-2003	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
703019	603013	SOX	State Compliance achieved	07-FEB-2024	State	-
703017	603012	SOX	State Compliance achieved	20-DEC-2021	State	-
703015	603009	SOX	State Compliance achieved	11-MAY-2020	State	-
703013	603008	SFL	State Administrative/Compliance Order without penalty issued	11-FEB-2020	State	-
703008	603005	SOX	State Compliance achieved	09-MAR-2018	State	reports are submitted and plant operating in compliance.
703006	603004	SOX	State Compliance achieved	07-JUL-2016	State	-
703003	603003	SOX	State Compliance achieved	27-NOV-2006	State	RCVD PN NOTIFICATION TTHM MCL PN COMPLETE
703005	603002	SOX	State Compliance achieved	15-AUG-2006	State	ENF_NO:02-03006C-024; PN COMPLETED CIT FOR 2006 DISINF FAIL
0399999	95V0001	EOX	Federal Compliance achieved	31-DEC-2003	ODSWeb	-

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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
CLEAR LAKE INTAKE - RAW	27423	Yes	Intake	Surface water	Permanent	Active
WELL 02 - ABANDONED	8021	Yes	Well	Ground water	Other	Inactive
WELL 03 - SURFACE INFLUENCED - INACTIVE	21022	Yes	Well	Ground water under the influence of surface water	Other	Inactive
WELL 01 - INACTIVE	21014	Yes	Well	Ground water	Emergency	Inactive
DISTRIBUTION SYSTEM	27424	No	Distribution System/Zone	-	-	Active
SHADY LANE PS (500 GPM)	64978	No	Pump Facility	-	-	Active
HIGH VALLEY PS (400 GPM)	64979	No	Pump Facility	-	-	Active
CERRITO PS (300 GPM)	64980	No	Pump Facility	-	-	Active
SWTP BOOSTER (864 GPM)	64981	No	Pump Facility	-	-	Active
HARVEY BOOSTER PUMP STATION	66968	No	Pump Facility	-	-	Active
200K CLEARWELL TANK	64972	No	Storage	-	-	Active
KONOCTI TANK (92K)	64973	No	Storage	-	-	Active
SHADY LANE TANK (99K)	64974	No	Storage	-	-	Active
CERRITO TANK (95K)	64975	No	Storage	-	-	Active
PLUTH - REDWOOD (92K)	64976	No	Storage	-	-	Active
PLUTH - STEEL (289K)	64977	No	Storage	-	-	Active
TREATMENT PLANT - CLEAR LAKE - TREATED	1062	No	Treatment Plant	-	-	Active
HARVEY VAULT BOOSTER DISINFECTION	66783	No	Treatment Plant	-	-	Active

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
TREATMENT PLANT - CLEAR LAKE - TREATED	1062	Activated Carbon, Granular	Organics removal
TREATMENT PLANT - CLEAR LAKE - TREATED	1062	Activated Carbon, Powdered	Organics removal
TREATMENT PLANT - CLEAR LAKE - TREATED	1062	Inhibitor, Orthophosphate	Corrosion control
TREATMENT PLANT - CLEAR LAKE - TREATED	1062	Hypochlorination, Post	Disinfection
TREATMENT PLANT - CLEAR LAKE - TREATED	1062	Activated Carbon, Granular	Taste / odor control
TREATMENT PLANT - CLEAR LAKE - TREATED	1062	Filtration, Pressure Sand	Particulate removal
TREATMENT PLANT - CLEAR LAKE - TREATED	1062	Sedimentation	Particulate removal
TREATMENT PLANT - CLEAR LAKE - TREATED	1062	Flocculation	Particulate removal
TREATMENT PLANT - CLEAR LAKE - TREATED	1062	Coagulation	Particulate removal
TREATMENT PLANT - CLEAR LAKE - TREATED	1062	Hypochlorination, Pre	Disinfection
TREATMENT PLANT - CLEAR LAKE - TREATED	1062	Ozonation, Pre	Organics removal
HARVEY VAULT BOOSTER DISINFECTION	66783	Hypochlorination, Post	Disinfection

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