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Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS IDOK1021101
PWS NameBLACKWELL MUNICIPAL AUTHORITY
PWS TypeCommunity water system
Owner TypeLocal government
Primary SourceSurface water
Primacy TypeState
Is Wholesaler?No
Population Served7668
County ServedKay

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
TTMonthly Turbidity Exceed (Enhanced SWTR)Interim and Long Term 1 Enhanced Surface Water Treatment RuleInterim Enhanced Surface Water Treatment Rule164294Known01-JUL-202531-JUL-2025Yes
TTMonthly Turbidity Exceed (Enhanced SWTR)Interim and Long Term 1 Enhanced Surface Water Treatment RuleInterim Enhanced Surface Water Treatment Rule164295Known01-JUN-202530-JUN-2025Yes
MRMonitoring and Reporting (DBP)Stage 1 Disinfectants and Disinfection Byproducts RuleChlorine dioxide164293Returned to Compliance01-MAY-202531-MAY-2025No
MRMonitoring, Turbidity (Enhanced SWTR)Interim and Long Term 1 Enhanced Surface Water Treatment RuleInterim Enhanced Surface Water Treatment Rule164292Returned to Compliance01-MAY-202531-MAY-2025No
MRFailure Submit IDSE/Subpart V Plan RptStage 2 Disinfectants and Disinfection Byproducts RuleTTHM164291Returned to Compliance01-APR-2025 - No
TTMonthly Turbidity Exceed (Enhanced SWTR)Interim and Long Term 1 Enhanced Surface Water Treatment RuleInterim Enhanced Surface Water Treatment Rule164290Returned to Compliance01-JAN-202531-JAN-2025Yes
TTSingle Turbidity Exceed (Enhanced SWTR)Interim and Long Term 1 Enhanced Surface Water Treatment RuleInterim Enhanced Surface Water Treatment Rule164282Returned to Compliance01-JUN-202430-JUN-2024Yes
TTMonthly Turbidity Exceed (Enhanced SWTR)Interim and Long Term 1 Enhanced Surface Water Treatment RuleInterim Enhanced Surface Water Treatment Rule164283Returned to Compliance01-MAR-202431-MAR-2024Yes
TTSingle Turbidity Exceed (Enhanced SWTR)Interim and Long Term 1 Enhanced Surface Water Treatment RuleInterim Enhanced Surface Water Treatment Rule164284Returned to Compliance01-MAR-202431-MAR-2024Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM164273Returned to Compliance01-JAN-202331-MAR-2023Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM164270Returned to Compliance01-OCT-202231-DEC-2022Yes
TTTreatment Technique (SWTR and GWR)Surface Water Treatment RuleSurface Water Treatment Rule164271Returned to Compliance01-SEP-202230-SEP-2022Yes
TTMonthly Turbidity Exceed (Enhanced SWTR)Interim and Long Term 1 Enhanced Surface Water Treatment RuleInterim Enhanced Surface Water Treatment Rule164266Returned to Compliance01-MAY-202131-MAY-2021Yes
MRMonitoring and Reporting (DBP)Stage 1 Disinfectants and Disinfection Byproducts RuleChlorite164249Returned to Compliance01-AUG-202031-AUG-2020No
MRMonitoring and Reporting (DBP)Stage 1 Disinfectants and Disinfection Byproducts RuleChlorite164248Returned to Compliance01-JUL-202031-JUL-2020No
MRMonitoring and Reporting (DBP)Stage 1 Disinfectants and Disinfection Byproducts RuleChlorite164233Returned to Compliance01-MAR-202031-MAR-2020No
MRMonitoring and Reporting (DBP)Stage 1 Disinfectants and Disinfection Byproducts RuleChlorite164232Returned to Compliance01-FEB-202029-FEB-2020No
MRMonitoring and Reporting (DBP)Stage 1 Disinfectants and Disinfection Byproducts RuleChlorite164234Returned to Compliance01-JAN-202031-JAN-2020No
MRMonitoring and Reporting (DBP)Stage 1 Disinfectants and Disinfection Byproducts RuleChlorine164228Returned to Compliance01-JAN-202031-MAR-2020No
MRMonitoring and Reporting (DBP)Stage 1 Disinfectants and Disinfection Byproducts RuleChlorite164225Returned to Compliance01-DEC-201931-DEC-2019No
MRMonitoring and Reporting (DBP)Stage 1 Disinfectants and Disinfection Byproducts RuleChlorite164223Returned to Compliance01-NOV-201930-NOV-2019No
TTMonthly Turbidity Exceed (Enhanced SWTR)Interim and Long Term 1 Enhanced Surface Water Treatment RuleInterim Enhanced Surface Water Treatment Rule164227Returned to Compliance01-AUG-201931-AUG-2019Yes
TTSingle Turbidity Exceed (Enhanced SWTR)Interim and Long Term 1 Enhanced Surface Water Treatment RuleInterim Enhanced Surface Water Treatment Rule164226Returned to Compliance01-MAY-201931-MAY-2019Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM164216Returned to Compliance01-JAN-201931-MAR-2019Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM164214Returned to Compliance01-OCT-201831-DEC-2018Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM164213Returned to Compliance01-JUL-201830-SEP-2018Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM164210Returned to Compliance01-APR-201830-JUN-2018Yes
MRMonitoring and Reporting (DBP)Stage 1 Disinfectants and Disinfection Byproducts RuleChlorine164185Returned to Compliance01-JAN-201831-MAR-2018No
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM164186Returned to Compliance01-JAN-201831-MAR-2018Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM164188Returned to Compliance01-OCT-201731-DEC-2017Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM164190Returned to Compliance01-JUL-201730-SEP-2017Yes
OtherConsumer Confidence Report Complete Failure to ReportConsumer Confidence RuleConsumer Confidence Rule164179Returned to Compliance01-JUL-2017 - No
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM164192Returned to Compliance01-APR-201730-JUN-2017Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM164194Returned to Compliance01-JAN-201731-MAR-2017Yes
MRFailure Submit IDSE/Subpart V Plan RptStage 2 Disinfectants and Disinfection Byproducts RuleTTHM164169Returned to Compliance30-DEC-2016 - No
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM164196Returned to Compliance01-OCT-201631-DEC-2016Yes
OtherConsumer Confidence Report Complete Failure to ReportConsumer Confidence RuleConsumer Confidence Rule164167Returned to Compliance01-JUL-2016 - No
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM164198Returned to Compliance01-JUL-201630-SEP-2016Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM164200Returned to Compliance01-APR-201630-JUN-2016Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM164202Returned to Compliance01-JAN-201631-MAR-2016Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM164165Returned to Compliance01-OCT-201531-DEC-2015Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM164162Returned to Compliance01-JUL-201530-SEP-2015Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM164158Returned to Compliance01-JAN-201531-MAR-2015Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM164155Returned to Compliance01-OCT-201431-DEC-2014Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM164153Returned to Compliance01-JUL-201430-SEP-2014Yes
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)164141Returned to Compliance01-SEP-201230-SEP-2012Yes
OtherConsumer Confidence Report Complete Failure to ReportConsumer Confidence RuleConsumer Confidence Rule164142Returned to Compliance01-JUL-2012 - No
MRMonitoring, RegularSynthetic Organic ChemicalsAtrazine164150Returned to Compliance01-JUL-201230-SEP-2012No
MRMonitoring, RegularSynthetic Organic ChemicalsAtrazine164149Returned to Compliance01-JAN-201231-MAR-2012No
MRMonitoring, RegularSynthetic Organic ChemicalsAtrazine164148Returned to Compliance01-JUL-201130-SEP-2011No
  • 1 - 50 of 73

Enforcement Actions


Enforcement Actions

Latest Enforcement IDAssociated To Violation IDEnforcement Action Type CodeEnforcement Action DescriptionEnforcement DateOriginator DescriptionEnforcement Comment
9160676164293SOXState Compliance achieved28-OCT-2025State -
9160677164292SOXState Compliance achieved28-OCT-2025State -
9160675164294SIFState Public Notification received08-OCT-2025State -
9160675164295SIFState Public Notification received08-OCT-2025State -
9160669164290SIFState Public Notification received18-JUN-2025State -
9160666164291SIAState Violation/Reminder Notice03-JUN-2025State -
9160659164282SOXState Compliance achieved29-OCT-2024StateTurbidity over 1 NTU June 2024/Closed, system achieved compliance.
9160660164284SOXState Compliance achieved29-OCT-2024StateMarch 2024 NTU TT/Closed, system achieved compliance.
9160660164283SOXState Compliance achieved29-OCT-2024StateMarch 2024 NTU TT/Closed, system achieved compliance.
9160652164266SIFState Public Notification received06-JUL-2023State -
9160649164271SOXState Compliance achieved23-JUN-2023StateSept 2022 Chlorine/System achieved compliance. According to the Authority's WTP manager, Jim Hoos, chlorine feed equipment components had malfunctioned, resulting in issues with low POE chlorine residual levels. Faulty components were repaired and replaced and were fully functional by end of Sept 22. NOV closed.
9160650164270SOXState Compliance achieved23-JUN-2023State4Q2023 TTHM MCL/System achieved compliance, administratively closed.
9160651164273SOXState Compliance achieved23-JUN-2023State1Q2023 TTHM MCL/System achieved compliance, administratively closed.
9160629164155SOXState Compliance achieved03-NOV-2021StateStage 2 TTHM & HAA5 MCL & TOC TT; all requirements have been fulfilled.
9160629164216SOXState Compliance achieved03-NOV-2021StateStage 2 TTHM & HAA5 MCL & TOC TT; all requirements have been fulfilled.
9160629164214SOXState Compliance achieved03-NOV-2021StateStage 2 TTHM & HAA5 MCL & TOC TT; all requirements have been fulfilled.
9160629164213SOXState Compliance achieved03-NOV-2021StateStage 2 TTHM & HAA5 MCL & TOC TT; all requirements have been fulfilled.
9160629164210SOXState Compliance achieved03-NOV-2021StateStage 2 TTHM & HAA5 MCL & TOC TT; all requirements have been fulfilled.
9160629164202SOXState Compliance achieved03-NOV-2021StateStage 2 TTHM & HAA5 MCL & TOC TT; all requirements have been fulfilled.
9160629164200SOXState Compliance achieved03-NOV-2021StateStage 2 TTHM & HAA5 MCL & TOC TT; all requirements have been fulfilled.
9160629164198SOXState Compliance achieved03-NOV-2021StateStage 2 TTHM & HAA5 MCL & TOC TT; all requirements have been fulfilled.
9160629164196SOXState Compliance achieved03-NOV-2021StateStage 2 TTHM & HAA5 MCL & TOC TT; all requirements have been fulfilled.
9160629164194SOXState Compliance achieved03-NOV-2021StateStage 2 TTHM & HAA5 MCL & TOC TT; all requirements have been fulfilled.
9160629164192SOXState Compliance achieved03-NOV-2021StateStage 2 TTHM & HAA5 MCL & TOC TT; all requirements have been fulfilled.
9160629164190SOXState Compliance achieved03-NOV-2021StateStage 2 TTHM & HAA5 MCL & TOC TT; all requirements have been fulfilled.
9160629164188SOXState Compliance achieved03-NOV-2021StateStage 2 TTHM & HAA5 MCL & TOC TT; all requirements have been fulfilled.
9160629164186SOXState Compliance achieved03-NOV-2021StateStage 2 TTHM & HAA5 MCL & TOC TT; all requirements have been fulfilled.
9160629164165SOXState Compliance achieved03-NOV-2021StateStage 2 TTHM & HAA5 MCL & TOC TT; all requirements have been fulfilled.
9160629164162SOXState Compliance achieved03-NOV-2021StateStage 2 TTHM & HAA5 MCL & TOC TT; all requirements have been fulfilled.
9160629164158SOXState Compliance achieved03-NOV-2021StateStage 2 TTHM & HAA5 MCL & TOC TT; all requirements have been fulfilled.
9160629164153SOXState Compliance achieved03-NOV-2021StateStage 2 TTHM & HAA5 MCL & TOC TT; all requirements have been fulfilled.
9160624164232SIFState Public Notification received18-NOV-2020State -
9160621164249SIFState Public Notification received18-NOV-2020State -
9160628164223SIFState Public Notification received18-NOV-2020State -
9160627164225SIFState Public Notification received18-NOV-2020State -
9160622164248SIFState Public Notification received18-NOV-2020State -
9160626164234SIFState Public Notification received18-NOV-2020State -
9160625164228SIFState Public Notification received18-NOV-2020State -
9160623164233SIFState Public Notification received18-NOV-2020State -
9160620164226SIFState Public Notification received23-JUL-2020State -
9160620164227SIFState Public Notification received23-JUL-2020State -
9160588164185SIFState Public Notification received21-NOV-2019StateDistributed with CCR
9160570164169SOXState Compliance achieved30-SEP-2019StateRTC
9160545164179SIAState Violation/Reminder Notice17-NOV-2017State -
9160538164167SIAState Violation/Reminder Notice03-JAN-2017State -
91605377396SOXState Compliance achieved26-JUL-2016StateAUTOMATIC RETURN TO COMPLIANCE 7/26/2016 - Violations Should be Closed Out because PWS is in complaince.
916053678491SOXState Compliance achieved26-JUL-2016StateAUTOMATIC RETURN TO COMPLIANCE 7/26/2016 - Violations Should be Closed Out because PWS is in complaince.
9160520164142SOXState Compliance achieved10-JUL-2015StateCCR RTC
9160517164143SOXState Compliance achieved17-MAR-2015StateSOC RTc
9160517164144SOXState Compliance achieved17-MAR-2015StateSOC RTc
  • 1 - 50 of 68

PWS Facilities


All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
CHIKASKIA RIVER15830YesIntakeSurface waterPermanentActive
RESERVOIR30820YesIntakeSurface waterPermanentActive
CLEARWELL29113NoClear Well - - Inactive
DISTRIBUTION SYSTEM17303NoDistribution System/Zone - - Active
BOOSTER PUMP STATION30646NoPump Facility - - Active
RAW WATER PUMP STATION30647NoPump Facility - - Active
POE01 - WTP22487NoSampling Station - - Active
TOC RAW23175NoSampling Station - - Active
GROUND STORAGE TANK BY PLANT22986NoStorage - - Active
GROUND STORAGE TANK BY PLANT - SMALL22987NoStorage - - Active
WEST END OF TOWN EST22988NoStorage - - Active
BLACKWELL WTP10930NoTreatment Plant - - Active
  • 1 - 12 of 12

PWS Treatment Processes


Treatment Processes

Facility NameFacility IDTreatment ProcessTreatment Objective
BLACKWELL WTP10930Gaseous Chlorination, PostDisinfection
BLACKWELL WTP10930CoagulationParticulate removal
BLACKWELL WTP10930pH AdjustmentCorrosion control
BLACKWELL WTP10930SedimentationParticulate removal
BLACKWELL WTP10930SedimentationParticulate removal
BLACKWELL WTP10930Chlorine DioxideDisinfection by-products control
BLACKWELL WTP10930pH Adjustment, PreInorganics removal
BLACKWELL WTP10930Filtration, Rapid SandParticulate removal
BLACKWELL WTP10930Gaseous Chlorination, PreDisinfection
BLACKWELL WTP10930Lime - Soda Ash AdditionSoftening (hardness removal)
  • 1 - 10 of 10

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.