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Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS IDCA1210015
PWS NameWILLOW CREEK C.S.D.
PWS TypeCommunity water system
Owner TypeLocal government
Primary SourceGroundwater under influence of surface water
Primacy TypeState
Is Wholesaler?No
Population Served1298
County ServedHumboldt

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
RPTNotification, Known or Potential LSLLead and Copper Rule RevisionsLEAD AND COPPER RULE REVISIONS9301008Open02-JUL-2025 - No
RPTLSL ReportingLead and Copper Rule RevisionsLEAD AND COPPER RULE REVISIONS9301005Open17-OCT-2024 - No
TTLSL InventoryLead and Copper Rule RevisionsLEAD AND COPPER RULE REVISIONS9301006Open17-OCT-2024 - Yes
TTTreatment Technique, Level 1 Assessment (RTCR)Revised Total Coliform RuleRevised Total Coliform Rule9301003Returned to Compliance18-JUN-2019 - Yes
TTTreatment Technique (SWTR and GWR)Surface Water Treatment RuleSurface Water Treatment Rule9301001Returned to Compliance01-JUN-199330-JUN-1993Yes
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Enforcement Actions


Enforcement Actions

Latest Enforcement IDAssociated To Violation IDEnforcement Action Type CodeEnforcement Action DescriptionEnforcement DateOriginator DescriptionEnforcement Comment
95010049301003SOXState Compliance achieved17-JUL-2019StateNOV - 6/13/2019 - BS/SG - Not enough CT in May 2019
95010029301001SOXState Compliance achieved01-MAR-2018State -
  • 1 - 2 of 2

PWS Facilities


All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
WELL 06 - DESTROYED18912YesWell Ground water under the influence of surface waterOtherInactive
WELL 02 XCLD13158YesWell Ground waterPermanentActive
WELL 04 XCLD13093YesWell Ground waterPermanentActive
WELL 03-NO DATA ACCEPTED AS OF 10/21/0413102YesWell Ground water under the influence of surface waterPermanentActive
WELL 01-NO DATA ACCEPTED AS OF 10/21/0413090YesWell Ground water under the influence of surface waterPermanentActive
WELL 05-NO DATA ACCEPTED AS OF 10/21/0413086YesWell Ground water under the influence of surface waterPermanentActive
WELLS 01,03,05 & 06 COMBINED - RAW26364NoCommon Headers - - Active
WELLS 02 & 04 COMBINED - RAW26365NoCommon Headers - - Active
DISTRIBUTION SYSTEM26363NoDistribution System/Zone - - Active
WATER TREATMENT PLANT5759NoTreatment Plant - - Active
WELLS 1,3,5&6 COMBINED-TRTD INACTIVE6693NoTreatment Plant - - Inactive
WELLS 02 & 04 COMBINED-TRD INACTIVE6708NoTreatment Plant - - Inactive
  • 1 - 12 of 12

PWS Treatment Processes


Treatment Processes

Facility NameFacility IDTreatment ProcessTreatment Objective
WATER TREATMENT PLANT5759Hypochlorination, PostDisinfection
WATER TREATMENT PLANT5759Filtration, Pressure SandParticulate removal
WATER TREATMENT PLANT5759Hypochlorination, PreDisinfection
  • 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.