U.S. flag

An official website of the United States government

Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS IDCA1910125
PWS NamePICO WD
PWS TypeCommunity water system
Owner TypeLocal government
Primary SourceGround water
Primacy TypeState
Is Wholesaler?No
Population Served22051
County ServedLos Angeles

Note


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.

PWS Violation


Violations

Violation Category CodeViolation Type DescriptionRule NameContaminant NameViolation IDCompliance Status DescriptionCompliance Period Begin DateCompliance Period End DateIs Health Based Ind
MRMonitoring, RegularVolatile Organic Chemicals1,2-Dichloroethane9407021Returned to Compliance01-JAN-202131-DEC-2022No
MRMonitoring, RegularVolatile Organic ChemicalsEthylbenzene9407032Returned to Compliance01-JAN-202131-DEC-2022No
MRMonitoring, RegularVolatile Organic Chemicals1,2,4-Trichlorobenzene9407009Returned to Compliance01-JAN-202131-DEC-2022No
MRMonitoring, RegularVolatile Organic Chemicalscis-1,2-Dichloroethylene9407010Returned to Compliance01-JAN-202131-DEC-2022No
MRMonitoring, RegularVolatile Organic ChemicalsXylenes, Total9407013Returned to Compliance01-JAN-202131-DEC-2022No
MRMonitoring, RegularVolatile Organic ChemicalsDICHLOROMETHANE9407014Returned to Compliance01-JAN-202131-DEC-2022No
MRMonitoring, RegularVolatile Organic Chemicalso-Dichlorobenzene9407015Returned to Compliance01-JAN-202131-DEC-2022No
MRMonitoring, RegularVolatile Organic Chemicalsp-Dichlorobenzene9407016Returned to Compliance01-JAN-202131-DEC-2022No
MRMonitoring, RegularVolatile Organic ChemicalsVinyl chloride9407017Returned to Compliance01-JAN-202131-DEC-2022No
MRMonitoring, RegularVolatile Organic Chemicals1,1-Dichloroethylene9407018Returned to Compliance01-JAN-202131-DEC-2022No
MRMonitoring, RegularVolatile Organic Chemicalstrans-1,2-Dichloroethylene9407020Returned to Compliance01-JAN-202131-DEC-2022No
MRMonitoring, RegularVolatile Organic ChemicalsStyrene9407033Returned to Compliance01-JAN-202131-DEC-2022No
MRMonitoring, RegularVolatile Organic Chemicals1,1,1-Trichloroethane9407022Returned to Compliance01-JAN-202131-DEC-2022No
MRMonitoring, RegularVolatile Organic ChemicalsCarbon tetrachloride9407023Returned to Compliance01-JAN-202131-DEC-2022No
MRMonitoring, RegularVolatile Organic Chemicals1,2-Dichloropropane9407024Returned to Compliance01-JAN-202131-DEC-2022No
MRMonitoring, RegularVolatile Organic ChemicalsTrichloroethylene9407025Returned to Compliance01-JAN-202131-DEC-2022No
MRMonitoring, RegularVolatile Organic Chemicals1,1,2-Trichloroethane9407026Returned to Compliance01-JAN-202131-DEC-2022No
MRMonitoring, RegularVolatile Organic ChemicalsTetrachloroethylene9407027Returned to Compliance01-JAN-202131-DEC-2022No
MRMonitoring, RegularVolatile Organic ChemicalsCHLOROBENZENE9407029Returned to Compliance01-JAN-202131-DEC-2022No
MRMonitoring, RegularVolatile Organic ChemicalsBenzene9407030Returned to Compliance01-JAN-202131-DEC-2022No
MRMonitoring, RegularVolatile Organic ChemicalsToluene9407031Returned to Compliance01-JAN-202131-DEC-2022No
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)9407004Returned to Compliance01-OCT-199331-OCT-1993Yes
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)9307001Returned to Compliance01-AUG-199331-AUG-1993Yes
  • 1 - 23 of 23

Enforcement Actions


Enforcement Actions

Latest Enforcement IDAssociated To Violation IDEnforcement Action Type CodeEnforcement Action DescriptionEnforcement DateOriginator DescriptionEnforcement Comment
98070159407021SOXState Compliance achieved27-FEB-2024StatePer MA, 9/24/24, enter SOX date 2/27/24.
98070159407032SOXState Compliance achieved27-FEB-2024StatePer MA, 9/24/24, enter SOX date 2/27/24.
98070159407009SOXState Compliance achieved27-FEB-2024StatePer MA, 9/24/24, enter SOX date 2/27/24.
98070159407010SOXState Compliance achieved27-FEB-2024StatePer MA, 9/24/24, enter SOX date 2/27/24.
98070159407013SOXState Compliance achieved27-FEB-2024StatePer MA, 9/24/24, enter SOX date 2/27/24.
98070159407014SOXState Compliance achieved27-FEB-2024StatePer MA, 9/24/24, enter SOX date 2/27/24.
98070159407015SOXState Compliance achieved27-FEB-2024StatePer MA, 9/24/24, enter SOX date 2/27/24.
98070159407016SOXState Compliance achieved27-FEB-2024StatePer MA, 9/24/24, enter SOX date 2/27/24.
98070159407017SOXState Compliance achieved27-FEB-2024StatePer MA, 9/24/24, enter SOX date 2/27/24.
98070159407018SOXState Compliance achieved27-FEB-2024StatePer MA, 9/24/24, enter SOX date 2/27/24.
98070159407020SOXState Compliance achieved27-FEB-2024StatePer MA, 9/24/24, enter SOX date 2/27/24.
98070159407033SOXState Compliance achieved27-FEB-2024StatePer MA, 9/24/24, enter SOX date 2/27/24.
98070159407022SOXState Compliance achieved27-FEB-2024StatePer MA, 9/24/24, enter SOX date 2/27/24.
98070159407023SOXState Compliance achieved27-FEB-2024StatePer MA, 9/24/24, enter SOX date 2/27/24.
98070159407024SOXState Compliance achieved27-FEB-2024StatePer MA, 9/24/24, enter SOX date 2/27/24.
98070159407025SOXState Compliance achieved27-FEB-2024StatePer MA, 9/24/24, enter SOX date 2/27/24.
98070159407026SOXState Compliance achieved27-FEB-2024StatePer MA, 9/24/24, enter SOX date 2/27/24.
98070159407027SOXState Compliance achieved27-FEB-2024StatePer MA, 9/24/24, enter SOX date 2/27/24.
98070159407029SOXState Compliance achieved27-FEB-2024StatePer MA, 9/24/24, enter SOX date 2/27/24.
98070159407030SOXState Compliance achieved27-FEB-2024StatePer MA, 9/24/24, enter SOX date 2/27/24.
98070159407031SOXState Compliance achieved27-FEB-2024StatePer MA, 9/24/24, enter SOX date 2/27/24.
98070109407004SOXState Compliance achieved29-NOV-1993StateCITATION NO. 04-143 BACTI MCL OCT. 93
98070119307001SOXState Compliance achieved14-OCT-1993StateENF_NO:# 84-133; BACTI MCL -AUG. 1993 COMPLIED WITH # 84-133
  • 1 - 23 of 23

PWS Facilities


All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
EMERGENCY INTERTIE W/ CITY OF PICO RIVER74288YesConsecutive ConnectionGround waterEmergencyActive
WELL 1164701YesWell Ground waterPermanentActive
WELL 05A13483YesWell Ground waterPermanentActive
WELL 1013475YesWell Ground waterPermanentActive
WELL 0813458YesWell Ground waterPermanentActive
WELL 01 - DESTROYED21379YesWell Ground waterOtherInactive
WELL 06 - INACTIVE21318YesWell Ground waterOtherInactive
WELL 05 - DESTROYED18848YesWell Ground waterOtherInactive
WELL 04 - DESTROYED18847YesWell Ground waterOtherInactive
WELL 07 - INACTIVE13486YesWell Ground waterOtherInactive
WELL 02 - INACTIVE13176YesWell Ground waterOtherInactive
WELL 01 - INACTIVECA1910125001YesWell Ground waterEmergencyInactive
WELL 09A - INACTIVE21383YesWell Ground waterEmergencyInactive
WELL 04A - STANDBY13448YesWell Ground waterEmergencyActive
DISTRIBUTION SYSTEM28408NoDistribution System/Zone - - Active
HARLEN CATE RESERVOIR70552NoStorage - - Active
WELL 10 CHLORINATION45002NoTreatment Plant - - Active
WELL 04A CHLORINATION45004NoTreatment Plant - - Active
WELL 11 IX TREATMENT PLANT74300NoTreatment Plant - - Active
WELL 11 IX -TP CHLORINATION74301NoTreatment Plant - - Active
WELL 8 IX PFAS TREATMENT PLANT75071NoTreatment Plant - - Active
WELL 8 IX-TP CHLORINATION75074NoTreatment Plant - - Active
WELL 05A CHLORINATION45000NoTreatment Plant - - Inactive
WELL 07 CHLORINATION45001NoTreatment Plant - - Inactive
WELL 08 CHLORINATION45003NoTreatment Plant - - Inactive
WELL 02 CHLORINATION45005NoTreatment Plant - - Inactive
WELL 11 CHLORINATION - INACTIVE68627NoTreatment Plant - - Inactive
  • 1 - 27 of 27

PWS Treatment Processes


Treatment Processes

Facility NameFacility IDTreatment ProcessTreatment Objective
WELL 05A CHLORINATION45000Hypochlorination, PostDisinfection
WELL 07 CHLORINATION45001Hypochlorination, PostDisinfection
WELL 10 CHLORINATION45002Hypochlorination, PostDisinfection
WELL 08 CHLORINATION45003Hypochlorination, PostDisinfection
WELL 04A CHLORINATION45004Hypochlorination, PostDisinfection
WELL 02 CHLORINATION45005Hypochlorination, PostDisinfection
WELL 11 CHLORINATION - INACTIVE68627Hypochlorination, PostDisinfection
WELL 11 IX TREATMENT PLANT74300Ion ExchangeOrganics removal
  • 1 - 8 of 8

For more information on a Water System:
Ask the operators of your water system, contact your primacy agency or file a Freedom of Information Act (FOIA) request.
Drinking water in general: Find out more about your drinking water web site or call the Safe Drinking Water Hotline (1-800-426-4791). EPA has also prepared a table about various regulated drinking water contaminants.
Tools for accessing EPA drinking water data: Safe Drinking Water Information System (SDWIS) Federal Reporting Services and Drinking Water Performance and Results Report.
Research Data: As well as monitoring the levels of drinking water contaminants for which EPA has set standards, EPA, states, and water systems also carry out studies of contaminants that may need to be regulated in the future. For more information about these contaminants, please see the National Contaminant Occurrence Database.