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Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS IDND5301012
PWS NameWILLISTON CITY OF
PWS TypeCommunity water system
Owner TypeLocal government
Primary SourceSurface water
Primacy TypeState
Is Wholesaler?No
Population Served26426
County ServedWilliams

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
MRMonitoring, Routine Minor (TCR)Total Coliform RuleColiform (TCR)52709Returned to Compliance01-NOV-201430-NOV-2014No
MRMonitoring and Reporting (DBP)Stage 1 Disinfectants and Disinfection Byproducts RuleChloramine52710Returned to Compliance01-OCT-201431-DEC-2014No
TTTreatment Technique (SWTR and GWR)Long Term 2 Enhanced Surface Water Treatment RuleLong Term 2 Enhanced Surface Water Treatment Rule52708Returned to Compliance01-JUN-201430-JUN-2014Yes
TTTreatment Technique (SWTR and GWR)Long Term 2 Enhanced Surface Water Treatment RuleLong Term 2 Enhanced Surface Water Treatment Rule52707Returned to Compliance01-FEB-201128-FEB-2011Yes
MCLMaximum Contaminant Level Violation, AverageStage 1 Disinfectants and Disinfection Byproducts RuleTTHM52706Returned to Compliance01-JAN-200631-MAR-2006Yes
MCLMaximum Contaminant Level Violation, AverageStage 1 Disinfectants and Disinfection Byproducts RuleTTHM52606Returned to Compliance01-OCT-200531-DEC-2005Yes
MCLMaximum Contaminant Level Violation, AverageStage 1 Disinfectants and Disinfection Byproducts RuleTTHM52506Returned to Compliance01-JUL-200530-SEP-2005Yes
TTTreatment Technique (SWTR and GWR)Surface Water Treatment RuleSurface Water Treatment Rule25094Known01-MAR-199431-MAR-1994Yes
MCLMaximum Contaminant Level Violation, AverageFormer Total Trihalomethane RuleTTHM33594Returned to Compliance01-JAN-199431-MAR-1994Yes
TTTreatment Technique (SWTR and GWR)Surface Water Treatment RuleSurface Water Treatment Rule52393Known01-SEP-199330-SEP-1993Yes
MRMonitoring, Routine Minor (TCR)Total Coliform RuleColiform (TCR)48491Known01-JUL-199131-JUL-1991No
  • 1 - 11 of 11

Enforcement Actions

Enforcement Actions

Latest Enforcement IDAssociated To Violation IDEnforcement Action Type CodeEnforcement Action DescriptionEnforcement DateOriginator DescriptionEnforcement Comment
192352710SIFState Public Notification received12-AUG-2015State -
192252709SIFState Public Notification received12-AUG-2015State -
191652708SOXState Compliance achieved29-OCT-2014StateSystem indicated that they resumed full capacity production on the morning of June 21; therefore the system has returned to compliance.
191252707SOXState Compliance achieved29-AUG-2011State -
190852706SOXState Compliance achieved30-APR-2007State -
190752506SOXState Compliance achieved30-JAN-2007State -
190752606SOXState Compliance achieved30-JAN-2007State -
249433594SIEState Public Notification requested09-JUN-1994State -
269425094SIFState Public Notification received05-MAY-1994State -
99452393SIFState Public Notification received08-NOV-1993State -
3E9148491SIAState Violation/Reminder Notice15-AUG-1991State -
  • 1 - 11 of 11

PWS Facilities

All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
CC FROM WAWSA12394YesConsecutive ConnectionSurface waterPermanentInactive
MISSOURI RIVER1194YesIntakeSurface waterPermanentActive
COMMON HEADER11347NoCommon Headers - - Active
WILLISTON CITY OF4170NoDistribution System/Zone - - Active
IDSE FACILITY11392NoDistribution System/Zone - - Inactive
SAMPLE STATION2668NoSampling Station - - Active
GENERAL SOURCE4261NoSampling Station - - Inactive
TREATMENT PLANT3063NoTreatment Plant - - Active
  • 1 - 8 of 8

PWS Treatment Processes

Treatment Processes

Facility NameFacility IDTreatment ProcessTreatment Objective
TREATMENT PLANT3063FlocculationSoftening (hardness removal)
TREATMENT PLANT3063Inhibitor, PolyphosphateCorrosion control
TREATMENT PLANT3063Lime - Soda Ash AdditionSoftening (hardness removal)
TREATMENT PLANT3063Activated Carbon, PowderedTaste / odor control
TREATMENT PLANT3063FluoridationOther
TREATMENT PLANT3063Filtration, Rapid SandParticulate removal
TREATMENT PLANT3063CoagulationOrganics removal
TREATMENT PLANT3063CoagulationParticulate removal
TREATMENT PLANT3063InnovativeDisinfection
TREATMENT PLANT3063pH AdjustmentCorrosion control
TREATMENT PLANT3063Gaseous Chlorination, PreDisinfection
TREATMENT PLANT3063InnovativeDisinfection
TREATMENT PLANT3063Ultraviolet RadiationDisinfection
TREATMENT PLANT3063FlocculationParticulate removal
  • 1 - 14 of 14
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.