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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, Routine (IDSE)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Stage 2 Disinfectants and Disinfection Byproducts Rule	3755200	Returned to Compliance	02-OCT-2007	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	3755199	Returned to Compliance	01-OCT-1998	-	No
TT	Public Education	Lead and Copper Rule	Lead and Copper Rule	3173396	Returned to Compliance	01-JAN-1995	-	Yes
TT	OCCT/SOWT Study/Recommendation	Lead and Copper Rule	Lead and Copper Rule	3178595	Returned to Compliance	01-JUL-1994	-	Yes
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	3174495	Returned to Compliance	01-JUL-1994	31-DEC-1994	No
TT	Public Education	Lead and Copper Rule	Lead and Copper Rule	3180595	Returned to Compliance	01-JAN-1994	-	Yes
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	1885392	Known	01-FEB-1992	29-FEB-1992	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
1842703	3755200	SOX	State Compliance achieved	09-FEB-2011	State	-
1842701	3755199	SOX	State Compliance achieved	10-JAN-2000	State	-
1499295	3180595	SOX	State Compliance achieved	06-JUN-1997	State	-
1499295	3174495	SOX	State Compliance achieved	06-JUN-1997	State	-
1499295	3178595	SOX	State Compliance achieved	06-JUN-1997	State	-
1480496	3173396	SOX	State Compliance achieved	10-APR-1997	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
1720001 TRICO WATER CO (W17104)	17808	Yes	Consecutive Connection	Ground water	Permanent	Active
SEVENTH AVE. EXT PMP	2252	Yes	Well	Ground water	Other	Inactive
THIRD AVENUE PUMP	2250	Yes	Well	Ground water	Other	Inactive
ROAD 55 AT 424	2251	Yes	Well	Ground water	Emergency	Inactive
1720001 TRICO WATER CO (W17101)	8668	Yes	Consecutive Connection	Ground water	Permanent	Active
DISTRIBUTION	10156	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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