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Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS IDWA5377620
PWS NameSEQUIM CITY OF
PWS TypeCommunity water system
Owner TypeLocal government
Primary SourceGround water
Primacy TypeState
Is Wholesaler?No
Population Served14293
County ServedClallam

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
OtherConsumer Confidence Report Complete Failure to ReportConsumer Confidence RuleConsumer Confidence Rule2464788Returned to Compliance01-JUL-2024 - No
OtherConsumer Confidence Report Complete Failure to ReportConsumer Confidence RuleConsumer Confidence Rule0099999Returned to Compliance19-OCT-199931-DEC-1999No
MRMonitoring, RegularInorganic ChemicalsBarium8052951Known01-OCT-197931-OCT-1979No
MRMonitoring, RegularInorganic ChemicalsCadmium8052952Known01-OCT-197931-OCT-1979No
MRMonitoring, RegularInorganic ChemicalsFluoride8052954Known01-OCT-197931-OCT-1979No
MRMonitoring, RegularNitrate RuleNitrate8052957Known01-OCT-197931-OCT-1979No
MRMonitoring, RegularInorganic ChemicalsSelenium8052958Known01-OCT-197931-OCT-1979No
MRMonitoring, RegularInorganic ChemicalsChromium8052953Known01-OCT-197931-OCT-1979No
MRMonitoring, RegularArsenic RuleArsenic8052950Known01-OCT-197931-OCT-1979No
MRMonitoring, RegularRadionuclides and Revised Rad RuleGross Alpha, Excl. Radon and U8051647Known01-OCT-197931-OCT-1979No
MRMonitoring, RegularInorganic ChemicalsMercury8052956Known01-OCT-197931-OCT-1979No
  • 1 - 11 of 11

Enforcement Actions


Enforcement Actions

Latest Enforcement IDAssociated To Violation IDEnforcement Action Type CodeEnforcement Action DescriptionEnforcement DateOriginator DescriptionEnforcement Comment
64788ENF2464788SOXState Compliance achieved19-FEB-2025State -
00999990099999EOXFederal Compliance achieved31-DEC-1999ODSWeb -
  • 1 - 2 of 2

PWS Facilities


All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
Infiltration Gallery CT6 Required23710YesInfiltration GalleryGround waterPermanentActive
SH WELL #1 WW AAF38831582YesWell Ground waterPermanentActive
PT WMS WELL #3 BAM402 10"31370YesWell Ground waterPermanentActive
SH WELL #3 AAF390 WW 10"23716YesWell Ground waterPermanentActive
SH WELL #2 AAF389 WW 10"23715YesWell Ground waterPermanentActive
PT WMS WF (S03, 04, 08)23714YesWell Ground waterPermanentActive
PT WMS WELL #2 AEH961 WW 12"23713YesWell Ground waterPermanentActive
PT WMS WELL #1 WW AAF38423712YesWell Ground waterPermanentActive
SH WF (S06, 07, 09)23711YesWell Ground waterPermanentActive
Dungeness/River/Ranney CT6 Required2267NoTreatment Plant - - Active
WF S02 Hemlock St2268NoTreatment Plant - - Active
WF S05 Sequim Ave2269NoTreatment Plant - - Active
Solana Reservoir DTP Booster4849NoTreatment Plant - - Active
  • 1 - 13 of 13

PWS Treatment Processes


Treatment Processes

Facility NameFacility IDTreatment ProcessTreatment Objective
Dungeness/River/Ranney CT6 Required2267Hypochlorination, PostDisinfection
WF S02 Hemlock St2268Hypochlorination, PostDisinfection
WF S05 Sequim Ave2269Hypochlorination, PostDisinfection
Solana Reservoir DTP Booster4849Hypochlorination, PostDisinfection
  • 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.