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Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS IDWY5600150
PWS NameEVANSTON, CITY OF
PWS TypeCommunity water system
Owner TypeLocal government
Primary SourceSurface water
Primacy TypeState
Is Wholesaler?Yes
Population Served11727
County ServedUinta

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, Monthly (TCR)Total Coliform RuleColiform (TCR)198Known01-AUG-199731-AUG-1997Yes
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)292Known01-AUG-199131-AUG-1991Yes
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)291Known01-AUG-199131-AUG-1991Yes
  • 1 - 3 of 3

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
BEAR RIVER INTAKE12237YesIntakeSurface waterPermanentActive
WELL #421520YesWell Ground waterEmergencyInactive
WELL #321519YesWell Ground waterEmergencyInactive
RIVER WELL15089YesWell Ground waterEmergencyInactive
AMOCO WELL15088YesWell Ground waterEmergencyInactive
SULPHUR CREEK RESERVOIR21521YesReservoirSurface waterPermanentActive
SULPHUR CREEK RESERVOIR INTAKE21523YesIntakeSurface waterPermanentActive
PLANT CLEARWELL14818NoClear Well - - Inactive
EVANSTON, CITY OF12238NoDistribution System/Zone - - Active
EVANSTON, CITY OF10844NoOther - - Inactive
ASPEN GROVE BOOSTER STATION (4)21518NoPump Facility - - Active
TWIN RIDGE BOOSTER STATION (4)21524NoPump Facility - - Active
BROOK HOLLOW BOOSTER STATION (4)21525NoPump Facility - - Active
RED MOUNTAIN BOOSTER STATION #1 (2)21526NoPump Facility - - Active
RED MOUNTAIN BOOSTER STATION #2 (3)21527NoPump Facility - - Active
WTP STORAGE TANK #1 (1MG)16030NoStorage - - Active
ASPEN GROVE STORAGE TANK #1 (1 MG)17284NoStorage - - Active
BROOK HOLLOW STORAGE TANK (500K GAL)18129NoStorage - - Active
TWIN RIDGE STORAGE TANK (1 MG))18130NoStorage - - Active
RED MOUNTAIN STORAGE TANK (250K GAL)18131NoStorage - - Active
PLANT CLEARWELL21512NoStorage - - Active
WTP STORAGE TANK #2 (1 MG)21513NoStorage - - Active
WTP STORAGE TANK #3 (1MG)21514NoStorage - - Active
ASPEN GROVE STORAGE TANK #2 (80K GAL)21515NoStorage - - Active
UPRISING TANK (50K GAL)21516NoStorage - - Active
RISING WELL21517NoStorage - - Active
TREATMENT PLANT16802NoTreatment Plant - - Active
AMOCO CHLORINATOR16950NoTreatment Plant - - Inactive
RIVER CHLORINATOR16951NoTreatment Plant - - Inactive
  • 1 - 29 of 29

PWS Treatment Processes

Treatment Processes

Facility NameFacility IDTreatment ProcessTreatment Objective
TREATMENT PLANT16802Hypochlorination, PostDisinfection
TREATMENT PLANT16802Ultraviolet RadiationDisinfection
TREATMENT PLANT16802CoagulationParticulate removal
TREATMENT PLANT16802FlocculationParticulate removal
TREATMENT PLANT16802SedimentationParticulate removal
TREATMENT PLANT16802Filtration, Rapid SandParticulate removal
  • 1 - 6 of 6
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.