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Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS IDWA5312284
PWS NameCHELAN CO PUD 1
PWS TypeCommunity water system
Owner TypeLocal government
Primary SourceGround water purchased
Primacy TypeState
Is Wholesaler?Yes
Population Served15840
County ServedChelan

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
MONMonitoring, Routine (RTCR)Revised Total Coliform RuleRevised Total Coliform Rule2875641Returned to Compliance01-JUL-202231-JUL-2022No
MONMonitoring, Routine (RTCR)Revised Total Coliform RuleRevised Total Coliform Rule2822183Returned to Compliance01-FEB-202228-FEB-2022No
MONMonitoring, Routine (RTCR)Revised Total Coliform RuleRevised Total Coliform Rule2296251Returned to Compliance01-JUL-201831-JUL-2018No
MONMonitoring, Routine (RTCR)Revised Total Coliform RuleRevised Total Coliform Rule2254583Returned to Compliance01-FEB-201828-FEB-2018No
MONMonitoring, Routine (RTCR)Revised Total Coliform RuleRevised Total Coliform Rule2222076Returned to Compliance01-OCT-201731-OCT-2017No
MRMonitoring and Reporting (DBP)Stage 2 Disinfectants and Disinfection Byproducts RuleTTHM1713821Returned to Compliance01-JUL-201430-SEP-2014No
OtherConsumer Confidence Report Complete Failure to ReportConsumer Confidence RuleConsumer Confidence Rule1231642Returned to Compliance01-JUL-2012 - No
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)9851148Known01-MAY-199831-MAY-1998Yes
MRMonitoring, Repeat Major (TCR)Total Coliform RuleColiform (TCR)9200596Known01-DEC-199131-DEC-1991No
MRMonitoring, RegularInorganic ChemicalsChromium8052613Known01-OCT-197931-OCT-1979No
MRMonitoring, RegularInorganic ChemicalsSelenium8052618Known01-OCT-197931-OCT-1979No
MRMonitoring, RegularNitrate RuleNitrate8052617Known01-OCT-197931-OCT-1979No
MRMonitoring, RegularInorganic ChemicalsMercury8052616Known01-OCT-197931-OCT-1979No
MRMonitoring, RegularInorganic ChemicalsFluoride8052614Known01-OCT-197931-OCT-1979No
MRMonitoring, RegularInorganic ChemicalsCadmium8052612Known01-OCT-197931-OCT-1979No
MRMonitoring, RegularInorganic ChemicalsBarium8052611Known01-OCT-197931-OCT-1979No
MRMonitoring, RegularArsenic RuleArsenic8052610Known01-OCT-197931-OCT-1979No
MRMonitoring, RegularRadionuclides and Revised Rad RuleGross Alpha, Excl. Radon and U8050095Known01-OCT-197931-OCT-1979No
  • 1 - 18 of 18

Enforcement Actions


Enforcement Actions

Latest Enforcement IDAssociated To Violation IDEnforcement Action Type CodeEnforcement Action DescriptionEnforcement DateOriginator DescriptionEnforcement Comment
2875641ENF2875641SOXState Compliance achieved09-AUG-2022State -
2822183ENF2822183SOXState Compliance achieved08-MAR-2022State -
2296251ENF2296251SOXState Compliance achieved13-AUG-2018State -
2254583ENF2254583SOXState Compliance achieved07-MAR-2018State -
2222076ENF2222076SOXState Compliance achieved07-NOV-2017State -
1713821ENF1713821SOXState Compliance achieved16-OCT-2014State -
31642ENF1231642SOXState Compliance achieved20-AUG-2012State -
98050139851148SIFState Public Notification received31-MAY-1998State -
  • 1 - 8 of 8

PWS Facilities


All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
Wen Regional/94350710597YesConsecutive ConnectionGround waterPermanentActive
Hawley St Wells 1,2,&310596YesWell Ground waterEmergencyInactive
North Bank Wells 1&210595YesWell Ground waterEmergencyInactive
Wen Regional/9435073998NoTreatment Plant - - Active
  • 1 - 4 of 4

PWS Treatment Processes


Treatment Processes

Facility NameFacility IDTreatment ProcessTreatment Objective
Wen Regional/9435073998Hypochlorination, PostDisinfection
  • 1 - 1 of 1

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.