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Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS IDWI7370169
PWS NameCOLBY WATERWORKS
PWS TypeCommunity water system
Owner TypeLocal government
Primary SourceGround water
Primacy TypeState
Is Wholesaler?No
Population Served1829
County ServedMarathon

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

Enforcement Actions


Enforcement Actions

No enforcement action(s) found. EPA has no record of enforcement action(s) reported by the primacy agency for this water system.

PWS Facilities


All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
SI61212YesWell Ground waterPermanentActive
BF3108YesWell Ground waterPermanentInactive
BF3097YesWell Ground waterPermanentInactive
BF3086YesWell Ground waterPermanentInactive
BF3063YesWell Ground waterPermanentInactive
BF3549YesWell Ground waterPermanentActive
BF3074YesWell Ground waterPermanentActive
BF3052YesWell Ground waterPermanentActive
YK99615YesWell Ground waterPermanentActive
YK99514YesWell Ground waterPermanentActive
WO06113YesWell Ground waterPermanentActive
7370169473701694NoDistribution System/Zone - - Active
200200NoOther - - Active
300300NoOther - - Inactive
SI61212TNoTreatment Plant - - Active
WO06113TNoTreatment Plant - - Active
YK99514TNoTreatment Plant - - Active
YK99615TNoTreatment Plant - - Active
200200TNoTreatment Plant - - Active
BF3052TNoTreatment Plant - - Active
BF3549TNoTreatment Plant - - Active
300300TNoTreatment Plant - - Inactive
BF3086TNoTreatment Plant - - Inactive
BF3108TNoTreatment Plant - - Inactive
  • 1 - 24 of 24

PWS Treatment Processes


Treatment Processes

Facility NameFacility IDTreatment ProcessTreatment Objective
SI61212T4-Log Treatment of VirusesDisinfection
SI61212THypochlorination, PreDisinfection
SI61212TInhibitor, OrthophosphateCorrosion control
SI61212TSequestrationManganese removal
SI61212TUltraviolet RadiationDisinfection
WO06113TFiltration, Pressure SandIron removal
WO06113THypochlorination, PreIron removal
WO06113TIon ExchangeSoftening (hardness removal)
WO06113TPermanganateIron removal
YK99514TFluoridationOther
YK99514THypochlorination, PostDisinfection
YK99514TIon ExchangeRadionuclides removal
YK99615TFiltration, Pressure SandIron removal
YK99615THypochlorination, PreIron removal
YK99615TIon ExchangeSoftening (hardness removal)
YK99615TPermanganateIron removal
200200TFluoridationOther
200200THypochlorination, PostDisinfection
BF3052TFiltration, Pressure SandIron removal
BF3052THypochlorination, PreIron removal
BF3052TIon ExchangeSoftening (hardness removal)
BF3052TPermanganateIron removal
300300TFluoridationOther
300300THypochlorination, PostDisinfection
300300TSequestrationManganese removal
300300TUltraviolet RadiationDisinfection
300300TInnovativeDisinfection
BF3086TFluoridationOther
BF3086THypochlorination, PostDisinfection
BF3108TFiltration, Pressure SandIron removal
BF3108TFluoridationOther
BF3108THypochlorination, PostDisinfection
BF3108THypochlorination, PreIron removal
BF3549T4-Log Treatment of VirusesDisinfection
BF3549THypochlorination, PreDisinfection
BF3549TInhibitor, OrthophosphateCorrosion control
BF3549TSequestrationManganese removal
BF3549TUltraviolet RadiationDisinfection
  • 1 - 38 of 38

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.