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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, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	207002	Returned to Compliance	01-FEB-2002	28-FEB-2002	Yes
MR	Monitoring, Regular	Nitrate Rule	Nitrate	7001	Returned to Compliance	01-JAN-2000	01-DEC-2000	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
9407003	207002	SOX	State Compliance achieved	31-MAR-2002	State	-
107015	7001	SOX	State Compliance achieved	21-MAY-2001	State	ENF_NO:04-07-01C-014; 2000 NO3 MONITORING VIOLATION 2000 PROCEDURAL FAILURE

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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
MWD CB49 CONNECTION - TREATED	28620	Yes	Consecutive Connection	Surface water	Emergency	Active
WELL 06 - AGRICULTURAL	8515	Yes	Well	Ground water	Permanent	Inactive
WELL 28	57963	Yes	Well	Ground water	Permanent	Active
WELL 27	24067	Yes	Well	Ground water	Permanent	Active
WELL 08	14264	Yes	Well	Ground water	Permanent	Active
WELL 18	14258	Yes	Well	Ground water	Permanent	Active
WELL 17	14257	Yes	Well	Ground water	Permanent	Active
WELL 10	14254	Yes	Well	Ground water	Permanent	Active
WELL 04	14252	Yes	Well	Ground water	Permanent	Active
WELL 02-A	14251	Yes	Well	Ground water	Permanent	Active
WELL 13A	14250	Yes	Well	Ground water	Permanent	Active
WELL 15A	14249	Yes	Well	Ground water	Permanent	Active
WELL 03-A - DESTROYED	22118	Yes	Well	Ground water	Other	Inactive
WELL 11-A - DESTROYED	22080	Yes	Well	Ground water	Other	Inactive
WELL 11 - DESTROYED	22079	Yes	Well	Ground water	Other	Inactive
WELL 24 - DESTROYED	19636	Yes	Well	Ground water	Other	Inactive
WELL 03 - DESTROYED	19572	Yes	Well	Ground water	Other	Inactive
WELL 13 - DESTROYED	19570	Yes	Well	Ground water	Other	Inactive
WELL 15 - DESTROYED	19567	Yes	Well	Ground water	Other	Inactive
WELL 16 - DESTROYED	19566	Yes	Well	Ground water	Other	Inactive
WELL 23 - DESTROYED	19563	Yes	Well	Ground water	Other	Inactive
WELL 14 - DESTROYED	14256	Yes	Well	Ground water	Other	Inactive
WELL 12 - DESTROYED	14244	Yes	Well	Ground water	Other	Inactive
WELL 22 - STANDBY	14248	Yes	Well	Ground water	Emergency	Active
MWD CONNECTION CB43 - TREATED INACTIVE	28621	Yes	Consecutive Connection	Surface water	Emergency	Inactive
CITY OF CERRITOS THROUGH MWD - ABANDONED	CA1910239021	Yes	Consecutive Connection	Ground water	Other	Inactive
CITY OF CERRITOS THROUGH MWD - ABANDONED	28618	Yes	Consecutive Connection	Surface water	Other	Inactive
DISTRIBUTION SYSTEM	28619	No	Distribution System/Zone	-	-	Active
PLANT 4 TANK 1	70668	No	Storage	-	-	Active
PLANT 4 TANK 2	70669	No	Storage	-	-	Active
PLANT 4 TANK 3	70670	No	Storage	-	-	Active
PLANT 13 TANK 1	70671	No	Storage	-	-	Active
PLANT 13 TANK 2	70672	No	Storage	-	-	Active
PLANT 13 TANK 3	70673	No	Storage	-	-	Active
PLANT 13 TANK 4	70674	No	Storage	-	-	Active
PLANT 13 TANK 5	70675	No	Storage	-	-	Active
TANK 22	70676	No	Storage	-	-	Active
ARSENIC TREATMENT FOR WELL 27	45796	No	Treatment Plant	-	-	Active
WELL 08 - CORROSION CONTROL	606	No	Treatment Plant	-	-	Active
WELL 08 - CHLORINATION	608	No	Treatment Plant	-	-	Active
WELL 04 - CHLORINATION	611	No	Treatment Plant	-	-	Active
WELL 04 - CORROSION CONTROL	612	No	Treatment Plant	-	-	Active
WELL 02A - CHLORINATION	613	No	Treatment Plant	-	-	Active
WELL 02A - CORROSION CONTROL	614	No	Treatment Plant	-	-	Active
WELL 15A - CHLORINATION	615	No	Treatment Plant	-	-	Active
WELL 13A - CHLORINATION XCLD	616	No	Treatment Plant	-	-	Active
WELL 10 - CHLORINATION	617	No	Treatment Plant	-	-	Active
WELL 15A - CORROSION CONTROL	618	No	Treatment Plant	-	-	Active
WELL 27 - CORROSION CONTROL	621	No	Treatment Plant	-	-	Active
WELL 13A - CORROSION CONTROL	631	No	Treatment Plant	-	-	Active

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
ARSENIC TREATMENT FOR WELL 27	45796	Filtration, Pressure Sand	Inorganics removal
WELL 08 - CORROSION CONTROL	606	Inhibitor, Polyphosphate	Corrosion control
WELL 08 - CHLORINATION	608	Hypochlorination, Post	Disinfection
WELL 14 - CHLORINATION	609	Hypochlorination, Post	Disinfection
WELL 14 - CORROSION CONTROL	610	Inhibitor, Polyphosphate	Corrosion control
WELL 04 - CHLORINATION	611	Hypochlorination, Post	Disinfection
WELL 04 - CORROSION CONTROL	612	Inhibitor, Polyphosphate	Corrosion control
WELL 02A - CHLORINATION	613	Hypochlorination, Post	Disinfection
WELL 02A - CORROSION CONTROL	614	Inhibitor, Polyphosphate	Corrosion control
WELL 15A - CHLORINATION	615	Hypochlorination, Post	Disinfection
WELL 13A - CHLORINATION XCLD	616	Hypochlorination, Post	Disinfection
WELL 10 - CHLORINATION	617	Hypochlorination, Post	Disinfection
WELL 15A - CORROSION CONTROL	618	Inhibitor, Polyphosphate	Corrosion control
WELL 11A - CORROSION CONTROL - TREATED	619	Inhibitor, Polyphosphate	Corrosion control
WELL 12 - CORROSION CONTROL	620	Inhibitor, Polyphosphate	Corrosion control
WELL 27 - CORROSION CONTROL	621	Inhibitor, Polyphosphate	Corrosion control
WELL 13A - CORROSION CONTROL	631	Inhibitor, Polyphosphate	Corrosion control
WELL 10 - CORROSION CONTROL - TREATED	643	Inhibitor, Polyphosphate	Corrosion control
WELL 22 - CHLORINATION	649	Hypochlorination, Post	Disinfection
WELL 18 - CHLORINATION	650	Hypochlorination, Post	Disinfection
WELL 18 - CORROSION CONTROL - TREATED	651	Inhibitor, Polyphosphate	Corrosion control
WELL 17 - CHLORINATION	652	Hypochlorination, Post	Disinfection
WELL 17 - CORROSION CONTROL - TREATED	653	Inhibitor, Polyphosphate	Corrosion control
WELL 27 - CHLORINATION XCLD	654	Hypochlorination, Post	Disinfection
WELL 12 - CHLORINATION	655	Hypochlorination, Post	Disinfection
WELL 11A - CHLORINATION	656	Hypochlorination, Post	Disinfection
WELL 28 - CHLORINATION	71952	Hypochlorination, Post	Disinfection
WELL 28 - CORROSION CONTROL	71953	Inhibitor, Polyphosphate	Corrosion control
PLANT 13 ARSENIC TREATMENT PLANT	74164	Filtration, Pressure Sand	Inorganics removal

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