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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)	2	Returned to Compliance	01-JAN-2019	31-MAR-2019	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	1	Returned to Compliance	01-JAN-2019	31-MAR-2019	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
9808006	2	SOX	State Compliance achieved	03-MAY-2019	State	RTC for 1st qtr 2019 DBP monitoring violation.
9808006	1	SOX	State Compliance achieved	03-MAY-2019	State	RTC for 1st qtr 2019 DBP monitoring violation.

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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
CITY OF CERRITOS 1	69316	Yes	Consecutive Connection	Surface water	Emergency	Active
CITY YARD WELL 008	14241	Yes	Well	Ground water	Permanent	Active
WALKER WELL 007	14212	Yes	Well	Ground water	Permanent	Active
HOEKER WELL 02 - DESTROYED	19522	Yes	Well	Ground water	Other	Inactive
GRANT WELL 01 - DESTROYED	19520	Yes	Well	Ground water	Other	Inactive
SWAGER - DESTROYED	19505	Yes	Well	Ground water	Other	Inactive
DE GROOT - DESTROYED	19497	Yes	Well	Ground water	Other	Inactive
CITY OF CERRITOS 2	69317	Yes	Consecutive Connection	Surface water	Emergency	Active
LA PALMA CONNECTION (OC-54) - TREATED	29861	Yes	Consecutive Connection	Surface water	Permanent	Active
DISTRIBUTION SYSTEM	29860	No	Distribution System/Zone	-	-	Active
CITY YARD RESERVOIR	65671	No	Storage	-	-	Active
WALKER ST RESERVOIR	65672	No	Storage	-	-	Active
WALKER WELL 05 - TRT	2482	No	Treatment Plant	-	-	Active
CITY YARD WELL - TRT	2483	No	Treatment Plant	-	-	Active
CITY YARD RMS	71709	No	Treatment Plant	-	-	Active
WALKER STREET RMS	71710	No	Treatment Plant	-	-	Active

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
WALKER WELL 05 - TRT	2482	4-Log Treatment of Viruses	Disinfection
WALKER WELL 05 - TRT	2482	Sequestration	Manganese removal
WALKER WELL 05 - TRT	2482	Hypochlorination, Post	Disinfection
CITY YARD WELL - TRT	2483	4-Log Treatment of Viruses	Disinfection
CITY YARD WELL - TRT	2483	Sequestration	Manganese removal
CITY YARD WELL - TRT	2483	Hypochlorination, Post	Disinfection

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