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Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS IDCA1110003
PWS NameCAL-WATER SERVICE CO.-WILLOWS
PWS TypeCommunity water system
Owner TypePrivate
Primary SourceGround water
Primacy TypeState
Is Wholesaler?No
Population Served7240
County ServedGlenn

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)9721002Returned to Compliance01-OCT-199631-OCT-1996Yes
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)9321001Returned to Compliance01-OCT-199231-OCT-1992Yes
  • 1 - 2 of 2

Enforcement Actions


Enforcement Actions

Latest Enforcement IDAssociated To Violation IDEnforcement Action Type CodeEnforcement Action DescriptionEnforcement DateOriginator DescriptionEnforcement Comment
97210069721002SOXState Compliance achieved30-JUN-1997StateSYSTEM RETURNED TO COMPLIANCE.
97210069321001SOXState Compliance achieved30-JUN-1997StateSYSTEM RETURNED TO COMPLIANCE.
  • 1 - 2 of 2

PWS Facilities


All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
WELL 05-01 STANDBY RAW11535YesWell Ground waterEmergencyActive
WELL 09-0111539YesWell Ground waterPermanentActive
WELL 08-01 --- RAW11538YesWell Ground waterPermanentActive
WELL 07-0111537YesWell Ground waterPermanentActive
WELL 04-0111534YesWell Ground waterPermanentActive
WELL 02-01 -- INACTIVE24604YesWell Ground waterOtherInactive
SOUTHERN PACIFIC WELL - DESTROYED18683YesWell Ground waterOtherInactive
WELL 12-01 - STANDBY RAW73876YesWell Ground waterEmergencyActive
WELL 10-01 STANDBY RAW11792YesWell Ground waterEmergencyActive
WELL 06-01 STANDBY RAW11536YesWell Ground waterEmergencyActive
DISTRIBUTION SYSTEM26141NoDistribution System/Zone - - Active
WELL 07-01 - TREATED DEAD5130NoTreatment Plant - - Active
WELL 04-01 - TREATED DEAD5139NoTreatment Plant - - Active
WELL 06-01 - TREATED STANDBY5141NoTreatment Plant - - Active
WELL 08-01 - TREATED DEAD5143NoTreatment Plant - - Active
WELL 09-01 - TREATED DEAD5144NoTreatment Plant - - Active
WELL 10-01 - STANDBY TREATED -- XCLD5145NoTreatment Plant - - Active
WELL 05-01 - TREATED STANDBY5153NoTreatment Plant - - Active
  • 1 - 18 of 18

PWS Treatment Processes


Treatment Processes

Facility NameFacility IDTreatment ProcessTreatment Objective
WELL 07-01 - TREATED DEAD5130Hypochlorination, PreDisinfection
WELL 04-01 - TREATED DEAD5139Ion ExchangeInorganics removal
WELL 04-01 - TREATED DEAD5139Hypochlorination, PreDisinfection
WELL 06-01 - TREATED STANDBY5141Hypochlorination, PreDisinfection
WELL 08-01 - TREATED DEAD5143Ion ExchangeInorganics removal
WELL 08-01 - TREATED DEAD5143Hypochlorination, PreDisinfection
WELL 09-01 - TREATED DEAD5144Ion ExchangeInorganics removal
WELL 09-01 - TREATED DEAD5144Hypochlorination, PreDisinfection
WELL 10-01 - STANDBY TREATED -- XCLD5145Hypochlorination, PreDisinfection
WELL 05-01 - TREATED STANDBY5153Hypochlorination, PreDisinfection
  • 1 - 10 of 10

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.