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Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS IDCA4110009
PWS NameCALIFORNIA WATER SERVICE-S SAN FRANCISCO
PWS TypeCommunity water system
Owner TypePrivate
Primary SourceSurface water purchased
Primacy TypeState
Is Wholesaler?No
Population Served64146
County ServedSan Mateo

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, Source Water (GWR)Ground Water RuleE. COLI9304007Returned to Compliance01-JUN-2013 - No
TTTreatment Technique (SWTR and GWR)Surface Water Treatment RuleSurface Water Treatment Rule9304006Returned to Compliance01-JUN-199330-JUN-1993Yes
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)9304005Returned to Compliance01-OCT-199231-OCT-1992Yes
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Enforcement Actions


Enforcement Actions

Latest Enforcement IDAssociated To Violation IDEnforcement Action Type CodeEnforcement Action DescriptionEnforcement DateOriginator DescriptionEnforcement Comment
99170179304005SOXState Compliance achieved25-JAN-2019StateDue to rTCR implementation, this TCR violation has been closed with this SOX enforcement record on 01/25/2019.
99170149304007SFLState Administrative/Compliance Order without penalty issued20-AUG-2013State -
99170139304006SOXState Compliance achieved05-NOV-1998StateENF_NO:CO #02-045; RETURNED TO COMPLIANCE
  • 1 - 3 of 3

PWS Facilities


All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
INTERTIE BRISBANE @ SHORELINE CT75195YesConsecutive ConnectionSurface waterEmergencyActive
SSF 001-2464735YesWell Ground waterPermanentActive
WELL 1-2354872YesWell Ground waterPermanentActive
WELL 01-2253980YesWell Ground waterPermanentActive
WELL 01-1910204YesWell Ground waterPermanentActive
WELL 01-2110185YesWell Ground waterPermanentActive
WELL 01-2010184YesWell Ground waterPermanentActive
WELL 01-18CA4110009005YesWell Ground waterOtherInactive
WELL 01-14CA4110009002YesWell Ground waterOtherInactive
WELL 01-02 - INACTIVE20537YesWell Ground waterOtherInactive
WELL 01-15 - DESTROYED10212YesWell Ground waterOtherInactive
WELL 01-14 - DESTROYED10211YesWell Ground waterOtherInactive
WELL 01-18 - INACTIVE10188YesWell Ground waterOtherInactive
WELL 01-17 - DESTROYED20539YesWell Ground waterEmergencyInactive
SFPUC SSF 1 - DEL PASO DR31425YesConsecutive ConnectionSurface waterPermanentActive
SFPUC SSF 2 - AIRPORT BLVD65127YesConsecutive ConnectionSurface waterPermanentActive
SFPUC SSF 3 - ORANGE/COMMERCIAL AVE65128YesConsecutive ConnectionSurface waterPermanentActive
SFPUC SSF 5 - WILDWOOD/GREENWOOD DR65129YesConsecutive ConnectionSurface waterPermanentActive
SFPUC SSF 6 - DUVAL DR65130YesConsecutive ConnectionSurface waterPermanentActive
SFPUC SSF 7 - SAN FELIPE AVE65131YesConsecutive ConnectionSurface waterPermanentActive
SFPUC SSF 9 - ELM COURT65132YesConsecutive ConnectionSurface waterPermanentActive
SFPUC SSF 12 - SERRAMONTE65133YesConsecutive ConnectionSurface waterPermanentActive
SFPUC SSF 14 - WASHINGTON/SULLIVAN ST65134YesConsecutive ConnectionSurface waterPermanentActive
SFPUC SSF 15 - D/HILL ST65135YesConsecutive ConnectionSurface waterPermanentActive
DISTRIBUTION SYSTEM31424NoDistribution System/Zone - - Active
STATION 01 EFFLUENT3582NoTreatment Plant - - Active
RESERVOIR 02 TREATMENT PLANT3595NoTreatment Plant - - Active
STATION 01 - COMBINED INFLUENT6147NoTreatment Plant - - Active
STATION 01 - FE/MN TREATMENT70367NoTreatment Plant - - Active
STATION 01 - GAC A - 50%70368NoTreatment Plant - - Active
STATION 01 - GAC A - 75%70369NoTreatment Plant - - Active
STATION 01 - GAC A - AFTER FILTER70370NoTreatment Plant - - Active
STATION 01 - GAC B - 50%70371NoTreatment Plant - - Active
STATION 01 - GAC B - 75%70372NoTreatment Plant - - Active
STATION 01 - GAC B - AFTER FILTER70373NoTreatment Plant - - Active
STATION 01 - GAC C - 50%70374NoTreatment Plant - - Active
STATION 01 - GAC C - 75%70375NoTreatment Plant - - Active
STATION 01 - GAC C - AFTER FILTER70376NoTreatment Plant - - Active
  • 1 - 38 of 38

PWS Treatment Processes


Treatment Processes

Facility NameFacility IDTreatment ProcessTreatment Objective
STATION 01 EFFLUENT3582Rapid MixInorganics removal
RESERVOIR 02 TREATMENT PLANT3595Filtration, GreensandManganese removal
RESERVOIR 02 TREATMENT PLANT3595ChloraminesDisinfection
STATION 01 - COMBINED INFLUENT6147ChloraminesDisinfection
STATION 01 - FE/MN TREATMENT70367Filtration, GreensandIron removal
STATION 01 - GAC A - 50%70368Activated Carbon, GranularOrganics removal
STATION 01 - GAC A - 75%70369Activated Carbon, GranularOrganics removal
STATION 01 - GAC A - AFTER FILTER70370Activated Carbon, GranularOrganics removal
STATION 01 - GAC B - 50%70371Activated Carbon, GranularOrganics removal
STATION 01 - GAC B - 75%70372Activated Carbon, GranularOrganics removal
STATION 01 - GAC B - AFTER FILTER70373Activated Carbon, GranularOrganics removal
STATION 01 - GAC C - 50%70374Activated Carbon, GranularOrganics removal
STATION 01 - GAC C - 75%70375Activated Carbon, GranularOrganics removal
STATION 01 - GAC C - AFTER FILTER70376Activated Carbon, GranularOrganics removal
  • 1 - 14 of 14

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.