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Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS IDCA4110024
PWS NameCITY OF EAST PALO ALTO
PWS TypeCommunity water system
Owner TypeLocal government
Primary SourceSurface water purchased
Primacy TypeState
Is Wholesaler?No
Population Served29519
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
TTTreatment Technique (SWTR and GWR)Surface Water Treatment RuleSurface Water Treatment Rule9904012Returned to Compliance01-MAR-201531-MAR-2015Yes
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)9904011Returned to Compliance01-JUN-201430-JUN-2014Yes
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)9904010Returned to Compliance01-MAY-201431-MAY-2014Yes
MRMonitoring and Reporting (DBP)Stage 1 Disinfectants and Disinfection Byproducts RuleTTHM617011Returned to Compliance01-OCT-200531-DEC-2005No
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)617010Returned to Compliance01-SEP-200530-SEP-2005Yes
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)9904009Returned to Compliance01-AUG-199931-AUG-1999Yes
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)9804008Returned to Compliance01-SEP-199830-SEP-1998Yes
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)9604005Returned to Compliance01-SEP-199630-SEP-1996Yes
OtherNotification, StateTotal Coliform RuleColiform (TCR)9604006Returned to Compliance01-SEP-199630-SEP-1996No
MRMonitoring, Routine Minor (TCR)Total Coliform RuleColiform (TCR)9604007Returned to Compliance01-JUN-199630-JUN-1996No
MRInitial Tap Sampling for Pb and CuLead and Copper RuleLead and Copper Rule94V0001Returned to Compliance30-JUN-199301-MAR-2000No
OtherNotification, PublicMiscellaneous Other Rules - 8900485Known01-NOV-198830-NOV-1988No
  • 1 - 12 of 12

Enforcement Actions


Enforcement Actions

Latest Enforcement IDAssociated To Violation IDEnforcement Action Type CodeEnforcement Action DescriptionEnforcement DateOriginator DescriptionEnforcement Comment
99170189904012SOXState Compliance achieved22-MAR-2017State -
99170239904011SOXState Compliance achieved30-JUL-2014StateThis TCR violation has been closed with this SOX enforcement record due to rTCR implementation on 4/1/2016.
99170229904010SOXState Compliance achieved30-JUN-2014StateThis TCR violation has been closed with this SOX enforcement record due to rTCR implementation on 4/1/2016.
717017617011SOXState Compliance achieved22-JUL-2006StateRETURN TO COMPLAINCE SYSTEM COMPLETED REQUIRED PN AND MONITORING
9917019617010SOXState Compliance achieved30-OCT-2005StateThis TCR violation has been closed with this SOX enforcement record due to rTCR implementation on 4/1/2016.
00E000194V0001EOXFederal Compliance achieved01-MAR-2000ODSWeb -
99170219904009SOXState Compliance achieved30-SEP-1999StateThis TCR violation has been closed with this SOX enforcement record due to rTCR implementation on 4/1/2016.
99170209804008SOXState Compliance achieved30-OCT-1998StateThis TCR violation has been closed with this SOX enforcement record due to rTCR implementation on 4/1/2016.
11170199604007SOXState Compliance achieved30-OCT-1996StateENF_NO:02-04-96C-023; RTC
11170199604006SOXState Compliance achieved30-OCT-1996StateENF_NO:02-04-96C-023; RTC
11170199604005SOXState Compliance achieved30-OCT-1996StateENF_NO:02-04-96C-023; RTC
  • 1 - 11 of 11

PWS Facilities


All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
SFPUC - UNIVERSITY AVENUE31480YesConsecutive ConnectionSurface waterPermanentActive
GLORIA WAY WELL23851YesWell Ground waterPermanentActive
WELL 01CA4110024001YesWell Ground waterOtherInactive
SFPUC - WILLOW ROAD65080YesConsecutive ConnectionSurface waterPermanentActive
SFPUC - O'BRIEN DRIVE65081YesConsecutive ConnectionSurface waterPermanentActive
DISTRIBUTION SYSTEM31479NoDistribution System/Zone - - Active
GLORIA WAY WELL - POST FILTRATION65395NoTreatment Plant - - Active
GLORIA WAY WELL - TREATMENT EFFLUENT65396NoTreatment Plant - - Active
  • 1 - 8 of 8

PWS Treatment Processes


Treatment Processes

Facility NameFacility IDTreatment ProcessTreatment Objective
GLORIA WAY WELL - POST FILTRATION65395Filtration, GreensandManganese removal
GLORIA WAY WELL - POST FILTRATION65395Hypochlorination, PreManganese removal
GLORIA WAY WELL - TREATMENT EFFLUENT65396InnovativeManganese removal
  • 1 - 3 of 3

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.