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Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS IDCA4310022
PWS NameGREAT OAKS WC INC
PWS TypeCommunity water system
Owner TypePrivate
Primary SourceGround water
Primacy TypeState
Is Wholesaler?Yes
Population Served110088
County ServedSanta Clara

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
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)9205003Returned to Compliance01-MAR-201531-MAR-2015Yes
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)9205002Returned to Compliance01-SEP-201330-SEP-2013Yes
MRMonitoring, Repeat Minor (TCR)Total Coliform RuleColiform (TCR)517003Returned to Compliance01-AUG-200531-AUG-2005No
MRFollow-up Or Routine LCR Tap M/RLead and Copper RuleLead and Copper Rule217002Returned to Compliance01-JAN-2002 - No
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)9205001Returned to Compliance01-SEP-199230-SEP-1992Yes
  • 1 - 5 of 5

Enforcement Actions


Enforcement Actions

Latest Enforcement IDAssociated To Violation IDEnforcement Action Type CodeEnforcement Action DescriptionEnforcement DateOriginator DescriptionEnforcement Comment
99170459205003SOXState Compliance achieved30-APR-2015StateThis TCR violation has been closed with this SOX enforcement record due to rTCR implementation on 4/1/2016.
99170449205002SOXState Compliance achieved30-OCT-2013StateThis TCR violation has been closed with this SOX enforcement record due to rTCR implementation on 4/1/2016.
617077517003SIAState Violation/Reminder Notice07-OCT-2005StateWITH PN REQUIREMENT
9917040217002SOXState Compliance achieved17-AUG-2004State -
99170439205001SOXState Compliance achieved30-OCT-1992StateThis TCR violation has been closed with this SOX enforcement record due to rTCR implementation on 4/1/2016.
  • 1 - 5 of 5

PWS Facilities


All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
SJW - SUISSE AVE. AND SNELL AVE.74619YesConsecutive ConnectionSurface waterEmergencyActive
WELL 1215660YesWell Ground waterPermanentInactive
WELL 24C71938YesWell Ground waterPermanentActive
WELL 24B71937YesWell Ground waterPermanentActive
WELL 23A63239YesWell Ground waterPermanentActive
WELL 1624545YesWell Ground waterPermanentActive
WELL 24A23849YesWell Ground waterPermanentActive
WELL 07 MONTEREY RD15751YesWell Ground waterPermanentActive
WELL 08 CHYNOWETH15750YesWell Ground waterPermanentActive
WELL 09 GREAT OAKS DR15749YesWell Ground waterPermanentActive
WELL 2415733YesWell Ground waterPermanentActive
WELL 2315732YesWell Ground waterPermanentActive
WELL 04 SANTA TERESA15723YesWell Ground waterPermanentActive
WELL 02 BANGER15722YesWell Ground waterPermanentActive
WELL 01 DISCOVERY15714YesWell Ground waterPermanentActive
WELL 2015696YesWell Ground waterPermanentActive
WELL 2115670YesWell Ground waterPermanentActive
WELL 1915662YesWell Ground waterPermanentActive
WELL 1115659YesWell Ground waterPermanentActive
WELL 10 S TER HOSP15658YesWell Ground waterPermanentActive
WELL 2215502YesWell Ground waterPermanentActive
NEW WELL - PENDING (WELL 25)CA4310022024YesWell Ground waterOtherInactive
WELL 05 BERNAL RD - ABANDONED7412YesWell Ground waterOtherInactive
WELL 13 - DESTROYED18001YesWell Ground waterOtherInactive
WELL 14 - DESTROYED17973YesWell Ground waterOtherInactive
WELL 15 - STANDBY24553YesWell Ground waterEmergencyActive
WELL 03 COTTLE - STANDBY24551YesWell Ground waterEmergencyActive
WELL 18 (STANDBY WELL)24200YesWell Ground waterEmergencyActive
SJW - TRADEWINDS DR. AND SNELL AVE.74620YesConsecutive ConnectionSurface waterEmergencyActive
SJW - CHYNOWETH AVE. AND SNELL AVE.74621YesConsecutive ConnectionSurface waterEmergencyActive
DISTRIBUTION SYSTEM31860NoDistribution System/Zone - - Active
CALERO PZ DISINFECTION66927NoTreatment Plant - - Active
RICHMOND PIPELINE CL266929NoTreatment Plant - - Active
WELL 18 - CHLORINATION7243NoTreatment Plant - - Active
WELL 01 DISCOVERY - CHLORINATION75303NoTreatment Plant - - Active
WELL 02 BANGER - CHLORINATION75304NoTreatment Plant - - Active
WELL 03 COTTLE - STANDBY - CHLORINATION75305NoTreatment Plant - - Active
WELL 04 SANTA TERESA - CHLORINATION75306NoTreatment Plant - - Active
WELL 07 MONTEREY RD - CHLORINATION75307NoTreatment Plant - - Active
WELL 08 CHYNOWETH - CHLORINATION75308NoTreatment Plant - - Active
WELL 09 GREAT OAKS DR - CHLORINATION75309NoTreatment Plant - - Active
WELL 10 S TER HOSP - CHLORINATION75310NoTreatment Plant - - Active
WELL 11 - CHLORINATION75311NoTreatment Plant - - Active
WELL 15 - STANDBY - CHLORINATION75312NoTreatment Plant - - Active
WELL 16 - CHLORINATION75313NoTreatment Plant - - Active
WELL 19 - CHLORINATION75314NoTreatment Plant - - Active
WELL 21 - CHLORINATION75315NoTreatment Plant - - Active
WELL 20 - CHLORINATION75316NoTreatment Plant - - Active
WELL 22 - CHLORINATION75317NoTreatment Plant - - Active
WELL 23 - CHLORINATION75318NoTreatment Plant - - Active
  • 1 - 50 of 52

PWS Treatment Processes


Treatment Processes

Facility NameFacility IDTreatment ProcessTreatment Objective
CALERO PZ DISINFECTION66927Hypochlorination, PostDisinfection
RICHMOND PIPELINE CL266929Hypochlorination, PostDisinfection
WELL 18 - CHLORINATION7243Hypochlorination, PostDisinfection
  • 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.