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Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS IDOK1021417
PWS NameCOPAN PWA
PWS TypeCommunity water system
Owner TypeLocal government
Primary SourceSurface water
Primacy TypeState
Is Wholesaler?No
Population Served733
County ServedWashington

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, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM131380Known01-JUL-202530-SEP-2025Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTotal Haloacetic Acids (HAA5)131378Known01-JUL-202530-SEP-2025Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTotal Haloacetic Acids (HAA5)131379Known01-JUL-202530-SEP-2025Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM131381Known01-JUL-202530-SEP-2025Yes
MRFailure Submit IDSE/Subpart V Plan RptStage 2 Disinfectants and Disinfection Byproducts RuleTTHM131364Returned to Compliance30-JUN-2025 - No
MRFailure Submit IDSE/Subpart V Plan RptStage 2 Disinfectants and Disinfection Byproducts RuleTotal Haloacetic Acids (HAA5)131363Returned to Compliance30-JUN-2025 - No
TTSingle Turbidity Exceed (Enhanced SWTR)Interim and Long Term 1 Enhanced Surface Water Treatment RuleInterim Enhanced Surface Water Treatment Rule131360Known01-MAY-202531-MAY-2025Yes
TTTreatment Technique (SWTR and GWR)Surface Water Treatment RuleSurface Water Treatment Rule131356Known01-MAY-202531-MAY-2025Yes
TTMonthly Turbidity Exceed (Enhanced SWTR)Interim and Long Term 1 Enhanced Surface Water Treatment RuleInterim Enhanced Surface Water Treatment Rule131357Known01-MAY-202531-MAY-2025Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTotal Haloacetic Acids (HAA5)131365Known01-APR-202530-JUN-2025Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTotal Haloacetic Acids (HAA5)131366Known01-APR-202530-JUN-2025Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM131367Known01-APR-202530-JUN-2025Yes
TTTreatment Technique (SWTR and GWR)Surface Water Treatment RuleSurface Water Treatment Rule131355Known01-APR-202530-APR-2025Yes
MRFailure Submit IDSE/Subpart V Plan RptStage 2 Disinfectants and Disinfection Byproducts RuleTotal Haloacetic Acids (HAA5)131349Returned to Compliance01-APR-2025 - No
MRFailure Submit IDSE/Subpart V Plan RptStage 2 Disinfectants and Disinfection Byproducts RuleTTHM131348Returned to Compliance01-APR-2025 - No
TTTreatment Technique (SWTR and GWR)Surface Water Treatment RuleSurface Water Treatment Rule131354Known01-APR-202530-APR-2025Yes
TTSingle Turbidity Exceed (Enhanced SWTR)Interim and Long Term 1 Enhanced Surface Water Treatment RuleInterim Enhanced Surface Water Treatment Rule131361Known01-APR-202530-APR-2025Yes
TTMonthly Turbidity Exceed (Enhanced SWTR)Interim and Long Term 1 Enhanced Surface Water Treatment RuleInterim Enhanced Surface Water Treatment Rule131358Known01-APR-202530-APR-2025Yes
OtherPublic Notification Violation for NPDWR ViolationPublic Notice Rule and Revised PN RulePublic Notice131372Open29-MAR-2025 - No
TTMonthly Turbidity Exceed (Enhanced SWTR)Interim and Long Term 1 Enhanced Surface Water Treatment RuleInterim Enhanced Surface Water Treatment Rule131359Known01-MAR-202531-MAR-2025Yes
TTTreatment Technique (SWTR and GWR)Surface Water Treatment RuleSurface Water Treatment Rule131353Known01-MAR-202531-MAR-2025Yes
TTSingle Turbidity Exceed (Enhanced SWTR)Interim and Long Term 1 Enhanced Surface Water Treatment RuleInterim Enhanced Surface Water Treatment Rule131362Known01-MAR-202531-MAR-2025Yes
MRMonitoring, Turbidity (Enhanced SWTR)Interim and Long Term 1 Enhanced Surface Water Treatment RuleInterim Enhanced Surface Water Treatment Rule131344Returned to Compliance01-FEB-202528-FEB-2025No
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM131347Known01-JAN-202531-MAR-2025Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTotal Haloacetic Acids (HAA5)131346Known01-JAN-202531-MAR-2025Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTotal Haloacetic Acids (HAA5)131345Known01-JAN-202531-MAR-2025Yes
MRMonitoring, Turbidity (Enhanced SWTR)Interim and Long Term 1 Enhanced Surface Water Treatment RuleInterim Enhanced Surface Water Treatment Rule131343Returned to Compliance01-JAN-202531-JAN-2025No
MRFailure Submit IDSE/Subpart V Plan RptStage 2 Disinfectants and Disinfection Byproducts RuleTotal Haloacetic Acids (HAA5)131337Returned to Compliance30-DEC-2024 - No
MRFailure Submit IDSE/Subpart V Plan RptStage 2 Disinfectants and Disinfection Byproducts RuleTTHM131338Returned to Compliance30-DEC-2024 - No
OtherPublic Notification Violation for NPDWR ViolationPublic Notice Rule and Revised PN RulePublic Notice131371Open21-DEC-2024 - No
MRMonitoring, Turbidity (Enhanced SWTR)Interim and Long Term 1 Enhanced Surface Water Treatment RuleInterim Enhanced Surface Water Treatment Rule131339Returned to Compliance01-DEC-202431-DEC-2024No
MRMonitoring, Turbidity (Enhanced SWTR)Interim and Long Term 1 Enhanced Surface Water Treatment RuleInterim Enhanced Surface Water Treatment Rule131327Returned to Compliance01-NOV-202430-NOV-2024No
MRMonitoring and Reporting (DBP)Stage 1 Disinfectants and Disinfection Byproducts RuleCARBON, TOTAL131330Returned to Compliance01-NOV-202430-NOV-2024No
MRMonitoring and Reporting (DBP)Stage 1 Disinfectants and Disinfection Byproducts RuleChlorine131328Returned to Compliance01-NOV-202430-NOV-2024No
MONMonitoring, Routine (RTCR)Revised Total Coliform RuleRevised Total Coliform Rule131332Returned to Compliance01-NOV-202430-NOV-2024No
MRMonitoring and Reporting (DBP)Stage 1 Disinfectants and Disinfection Byproducts RuleCARBON, TOTAL131331Returned to Compliance01-NOV-202430-NOV-2024No
RPTLSL ReportingLead and Copper Rule RevisionsLEAD AND COPPER RULE REVISIONS131351Open17-OCT-2024 - No
TTLSL InventoryLead and Copper Rule RevisionsLEAD AND COPPER RULE REVISIONS131350Open17-OCT-2024 - Yes
MRFollow-up Or Routine LCR Tap M/RLead and Copper RuleLead and Copper Rule131322Returned to Compliance01-OCT-2024 - No
MRMonitoring, Turbidity (Enhanced SWTR)Interim and Long Term 1 Enhanced Surface Water Treatment RuleInterim Enhanced Surface Water Treatment Rule131325Returned to Compliance01-OCT-202431-OCT-2024No
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTotal Haloacetic Acids (HAA5)131333Known01-OCT-202431-DEC-2024Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM131336Known01-OCT-202431-DEC-2024Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTotal Haloacetic Acids (HAA5)131334Known01-OCT-202431-DEC-2024Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM131335Known01-OCT-202431-DEC-2024Yes
MRFailure Submit IDSE/Subpart V Plan RptStage 2 Disinfectants and Disinfection Byproducts RuleTotal Haloacetic Acids (HAA5)131324Returned to Compliance29-SEP-2024 - No
MRFailure Submit IDSE/Subpart V Plan RptStage 2 Disinfectants and Disinfection Byproducts RuleTTHM131323Returned to Compliance29-SEP-2024 - No
OtherPublic Notification Violation for NPDWR ViolationPublic Notice Rule and Revised PN RulePublic Notice131370Open05-SEP-2024 - No
MRMonitoring, Turbidity (Enhanced SWTR)Interim and Long Term 1 Enhanced Surface Water Treatment RuleInterim Enhanced Surface Water Treatment Rule131321Returned to Compliance01-SEP-202430-SEP-2024No
MRMonitoring, Turbidity (Enhanced SWTR)Interim and Long Term 1 Enhanced Surface Water Treatment RuleInterim Enhanced Surface Water Treatment Rule131316Returned to Compliance01-AUG-202431-AUG-2024No
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM131319Known01-JUL-202430-SEP-2024Yes
  • 1 - 50 of 130

Enforcement Actions

Enforcement Actions

Latest Enforcement IDAssociated To Violation IDEnforcement Action Type CodeEnforcement Action DescriptionEnforcement DateOriginator DescriptionEnforcement Comment
9999900000000000001131350EFLFederal Final Administrative Order issued31-MAR-2026ODSWebLSLI AO
9999900000000000001131351EFLFederal Final Administrative Order issued31-MAR-2026ODSWebLSLI AO
9006714131381SIEState Public Notification requested09-DEC-2025State -
9006714131380SIEState Public Notification requested09-DEC-2025State -
9006714131379SIEState Public Notification requested09-DEC-2025State -
9006714131378SIEState Public Notification requested09-DEC-2025State -
9006721131367SIFState Public Notification received06-DEC-2025State -
9006718131318SIFState Public Notification received06-DEC-2025State -
9006718131319SIFState Public Notification received06-DEC-2025State -
9006718131320SIFState Public Notification received06-DEC-2025State -
9006719131333SIFState Public Notification received06-DEC-2025State -
9006719131334SIFState Public Notification received06-DEC-2025State -
9006719131335SIFState Public Notification received06-DEC-2025State -
9006719131336SIFState Public Notification received06-DEC-2025State -
9006720131345SIFState Public Notification received06-DEC-2025State -
9006720131346SIFState Public Notification received06-DEC-2025State -
9006720131347SIFState Public Notification received06-DEC-2025State -
9006721131365SIFState Public Notification received06-DEC-2025State -
9006721131366SIFState Public Notification received06-DEC-2025State -
9006717131312SIFState Public Notification received06-DEC-2025State -
9006717131311SIFState Public Notification received06-DEC-2025State -
9006716131300SIFState Public Notification received06-DEC-2025State -
9006716131299SIFState Public Notification received06-DEC-2025State -
9006715131294SIFState Public Notification received06-DEC-2025State -
9006715131293SIFState Public Notification received06-DEC-2025State -
9006718131317SIFState Public Notification received06-DEC-2025State -
9006701131295SOXState Compliance achieved18-SEP-2025State -
9006702131297SOXState Compliance achieved18-SEP-2025State -
9006703131301SOXState Compliance achieved18-SEP-2025State -
9006704131314SOXState Compliance achieved18-SEP-2025State -
9006712131322SOXState Compliance achieved18-SEP-2025State -
9006705131323SOXState Compliance achieved18-SEP-2025State -
9006706131324SOXState Compliance achieved18-SEP-2025State -
9006707131337SOXState Compliance achieved18-SEP-2025State -
9006708131338SOXState Compliance achieved18-SEP-2025State -
9006709131348SOXState Compliance achieved18-SEP-2025State -
9006710131363SOXState Compliance achieved18-SEP-2025State -
9006711131364SOXState Compliance achieved18-SEP-2025State -
9006692131357SFLState Administrative/Compliance Order without penalty issued16-JUL-2025StateMAR2025 APR2025 MAY2025 Turbidity & Chlorine TT
9006692131353SFLState Administrative/Compliance Order without penalty issued16-JUL-2025StateMAR2025 APR2025 MAY2025 Turbidity & Chlorine TT
9006692131354SFLState Administrative/Compliance Order without penalty issued16-JUL-2025StateMAR2025 APR2025 MAY2025 Turbidity & Chlorine TT
9006692131355SFLState Administrative/Compliance Order without penalty issued16-JUL-2025StateMAR2025 APR2025 MAY2025 Turbidity & Chlorine TT
9006692131356SFLState Administrative/Compliance Order without penalty issued16-JUL-2025StateMAR2025 APR2025 MAY2025 Turbidity & Chlorine TT
9006692131362SFLState Administrative/Compliance Order without penalty issued16-JUL-2025StateMAR2025 APR2025 MAY2025 Turbidity & Chlorine TT
9006692131358SFLState Administrative/Compliance Order without penalty issued16-JUL-2025StateMAR2025 APR2025 MAY2025 Turbidity & Chlorine TT
9006692131359SFLState Administrative/Compliance Order without penalty issued16-JUL-2025StateMAR2025 APR2025 MAY2025 Turbidity & Chlorine TT
9006692131360SFLState Administrative/Compliance Order without penalty issued16-JUL-2025StateMAR2025 APR2025 MAY2025 Turbidity & Chlorine TT
9006692131361SFLState Administrative/Compliance Order without penalty issued16-JUL-2025StateMAR2025 APR2025 MAY2025 Turbidity & Chlorine TT
9006695131349SOXState Compliance achieved10-JUL-2025State -
9006672131315SOXState Compliance achieved26-JUN-2025State -
  • 1 - 50 of 124

PWS Facilities

All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
COPAN LAKE15865YesIntakeSurface waterPermanentActive
DISTRIBUTION SYSTEM17324NoDistribution System/Zone - - Active
RAW WATER PUMP STATION30666NoPump Facility - - Active
TOC RAW23197NoSampling Station - - Active
POE01 - WTP22548NoSampling Station - - Inactive
LARGER STANDPIPE BY PLANT23318NoStorage - - Active
SMALLER STANDPIPE BY PLANT23317NoStorage - - Inactive
COPAN WTP10962NoTreatment Plant - - Active
  • 1 - 8 of 8

PWS Treatment Processes

Treatment Processes

Facility NameFacility IDTreatment ProcessTreatment Objective
COPAN WTP10962Hypochlorination, PostDisinfection
COPAN WTP10962pH Adjustment, PostCorrosion control
COPAN WTP10962SedimentationParticulate removal
COPAN WTP10962Filtration, Rapid SandParticulate removal
  • 1 - 4 of 4
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.