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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	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	910019	Returned to Compliance	01-OCT-2008	-	No
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	210007	Returned to Compliance	01-DEC-2001	31-DEC-2001	Yes
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	210008	Returned to Compliance	01-DEC-2001	31-DEC-2001	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	110013	Returned to Compliance	01-JUL-2001	-	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	10015	Returned to Compliance	10-MAY-2000	10-MAY-2001	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	210010	Returned to Compliance	10-MAY-1999	10-MAY-2000	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate-Nitrite	9710016	Returned to Compliance	10-MAY-1997	10-MAY-2000	No
MR	Monitoring, Regular	Nitrate Rule	Nitrite	9710017	Returned to Compliance	10-MAY-1997	10-MAY-2000	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	9610009	Returned to Compliance	22-MAR-1996	22-MAR-2001	No
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	9410002	Returned to Compliance	01-SEP-1994	30-SEP-1994	Yes
Other	Notification, Public	Miscellaneous Other Rules	-	8700762	Known	01-JUL-1987	31-JUL-1987	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
9910009	210010	SOX	State Compliance achieved	16-JUL-2019	State	returned to complaince
9910008	110013	SOX	State Compliance achieved	16-JUL-2019	State	returned to compliance
9910009	9710017	SOX	State Compliance achieved	16-JUL-2019	State	returned to complaince
9910009	10015	SOX	State Compliance achieved	16-JUL-2019	State	returned to complaince
9910010	210008	SOX	State Compliance achieved	16-JUL-2019	State	returned to compliance
9910009	9610009	SOX	State Compliance achieved	16-JUL-2019	State	returned to complaince
9910009	9710016	SOX	State Compliance achieved	16-JUL-2019	State	returned to complaince
9910007	910019	SOX	State Compliance achieved	01-JUL-2009	State	-
810018	210007	SOX	State Compliance achieved	31-JAN-2002	State	RETURNED TO COMPLIANCE
9510002	9410002	SIA	State Violation/Reminder Notice	02-NOV-1994	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
MOKELUMNE RIVER (WILSEYVILLE)-ABANDONED	24939	Yes	Intake	Surface water	Other	Inactive
MOKELUMNE RIVER - RAW	24938	Yes	Intake	Surface water	Permanent	Active
BEAR CREEK - RAW	24936	Yes	Intake	Surface water	Permanent	Active
DISTRIBUTION SYSTEM	24937	No	Distribution System/Zone	-	-	Active
WEST POINT WTP - EFFLUENT	5778	No	Treatment Plant	-	-	Active
BEAR CREEK - TREATED	1800	No	Treatment Plant	-	-	Inactive
MOKELUMNE RIVER - TREATED	1801	No	Treatment Plant	-	-	Inactive

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
BEAR CREEK - TREATED	1800	Inhibitor, Orthophosphate	Corrosion control
BEAR CREEK - TREATED	1800	Sedimentation	Particulate removal
BEAR CREEK - TREATED	1800	Rapid Mix	Particulate removal
BEAR CREEK - TREATED	1800	Flocculation	Particulate removal
BEAR CREEK - TREATED	1800	Coagulation	Particulate removal
BEAR CREEK - TREATED	1800	Hypochlorination, Post	Disinfection
BEAR CREEK - TREATED	1800	Hypochlorination, Pre	Disinfection
BEAR CREEK - TREATED	1800	Filtered	Particulate removal
MOKELUMNE RIVER - TREATED	1801	Inhibitor, Orthophosphate	Corrosion control
MOKELUMNE RIVER - TREATED	1801	Sedimentation	Particulate removal
MOKELUMNE RIVER - TREATED	1801	Rapid Mix	Particulate removal
MOKELUMNE RIVER - TREATED	1801	Flocculation	Particulate removal
MOKELUMNE RIVER - TREATED	1801	Coagulation	Particulate removal
MOKELUMNE RIVER - TREATED	1801	Hypochlorination, Post	Disinfection
MOKELUMNE RIVER - TREATED	1801	Hypochlorination, Pre	Disinfection
MOKELUMNE RIVER - TREATED	1801	Filtered	Particulate removal
WEST POINT WTP - EFFLUENT	5778	Filtered	Particulate removal

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