Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	OK1020504
PWS Name	SHAWNEE MUNICIPAL AUTHORITY
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	29990
County Served	Pottawatomie

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.

Violations

Violation Category Code	Violation Type Description	Rule Name	Contaminant Name	Violation ID	Compliance Status Description	Compliance Period Begin Date	Compliance Period End Date	Is Health Based Ind
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	139732	Known	01-OCT-2025	31-DEC-2025	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	139729	Known	01-JUL-2025	30-SEP-2025	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	139728	Known	01-APR-2025	30-JUN-2025	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	139724	Known	01-JAN-2025	31-MAR-2025	Yes
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	139712	Returned to Compliance	01-SEP-2024	30-SEP-2024	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	139713	Returned to Compliance	01-SEP-2024	30-SEP-2024	No
TT	Monthly Turbidity Exceed (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	139656	Returned to Compliance	01-JUN-2020	30-JUN-2020	Yes
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	139643	Known	01-JUL-2019	30-SEP-2019	No
TT	Monthly Turbidity Exceed (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	139599	Returned to Compliance	01-AUG-2016	31-AUG-2016	Yes
TT	Monthly Turbidity Exceed (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	139590	Returned to Compliance	01-JUL-2015	31-JUL-2015	Yes
TT	Monthly Turbidity Exceed (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	139589	Returned to Compliance	01-JUN-2015	30-JUN-2015	Yes
MR	Monitoring, Routine (IDSE)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	139547	Returned to Compliance	01-DEC-2008	31-JAN-2009	No
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	139518	Returned to Compliance	01-OCT-2008	31-DEC-2008	Yes
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	139520	Returned to Compliance	01-OCT-2008	31-DEC-2008	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	139519	Returned to Compliance	01-JUL-2008	30-SEP-2008	No
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	139515	Returned to Compliance	01-JUL-2008	30-SEP-2008	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	139517	Returned to Compliance	01-APR-2008	30-JUN-2008	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	139514	Returned to Compliance	01-JAN-2008	31-MAR-2008	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	139516	Returned to Compliance	01-JAN-2008	31-MAR-2008	Yes
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	139524	Returned to Compliance	01-JAN-2008	31-MAR-2008	No
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	139512	Returned to Compliance	01-OCT-2007	31-DEC-2007	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	138606	Returned to Compliance	01-OCT-2005	31-DEC-2005	Yes
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Bromate	138805	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Bromate	138705	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Bromate	138905	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Bromate	139005	Returned to Compliance	01-JUL-2005	30-SEP-2005	No
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	137906	Returned to Compliance	01-JUL-2005	30-SEP-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	138005	Returned to Compliance	01-APR-2005	30-JUN-2005	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	137806	Returned to Compliance	01-APR-2005	30-JUN-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	137505	Returned to Compliance	01-JAN-2005	31-MAR-2005	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	137705	Returned to Compliance	01-JAN-2005	31-MAR-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	137105	Returned to Compliance	01-OCT-2004	31-DEC-2004	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	137205	Returned to Compliance	01-OCT-2004	31-DEC-2004	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	137004	Returned to Compliance	01-JUL-2004	30-SEP-2004	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	136904	Returned to Compliance	01-JUL-2004	30-SEP-2004	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	136604	Returned to Compliance	01-JUN-2004	30-JUN-2004	Yes
TT	Monthly Turbidity Exceed (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	136404	Returned to Compliance	01-MAY-2004	31-MAY-2004	Yes
TT	Single Turbidity Exceed (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	136504	Returned to Compliance	01-MAY-2004	31-MAY-2004	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	136704	Returned to Compliance	01-APR-2004	30-JUN-2004	Yes
TT	Monthly Turbidity Exceed (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	136304	Returned to Compliance	01-APR-2004	30-APR-2004	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	136804	Returned to Compliance	01-APR-2004	30-JUN-2004	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	136004	Returned to Compliance	01-JAN-2004	31-MAR-2004	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	136104	Returned to Compliance	01-JAN-2004	31-MAR-2004	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	135804	Returned to Compliance	01-OCT-2003	31-DEC-2003	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	135704	Returned to Compliance	01-OCT-2003	31-DEC-2003	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	135904	Returned to Compliance	01-OCT-2003	31-DEC-2003	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	135303	Returned to Compliance	01-JUL-2003	30-SEP-2003	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	135503	Returned to Compliance	01-JUL-2003	30-SEP-2003	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	135403	Returned to Compliance	01-JUL-2003	30-SEP-2003	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	135103	Returned to Compliance	01-APR-2003	30-JUN-2003	Yes

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Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
9200638	139729	SIF	State Public Notification received	16-DEC-2025	State	-
9200632	139728	SIF	State Public Notification received	17-SEP-2025	State	-
9200633	139724	SIF	State Public Notification received	22-JUL-2025	State	-
9200627	139712	SIF	State Public Notification received	09-MAY-2025	State	-
9200627	139713	SIF	State Public Notification received	09-MAY-2025	State	-
9200609	139656	SOX	State Compliance achieved	30-JUL-2021	State	Jun2020 Turbidity TT; closed due to system achieving compliance.
9200610	139643	SIF	State Public Notification received	20-NOV-2020	State	-
9200569	139599	SOX	State Compliance achieved	16-FEB-2018	State	-
9200555	10598	SOX	State Compliance achieved	25-JUL-2016	State	AUTOMATIC RETURN TO COMPLIANCE 7/25/2016 - Violations Should be Closed Out because PWS is in complaince.
9200554	53696	SOX	State Compliance achieved	25-JUL-2016	State	AUTOMATIC RETURN TO COMPLIANCE 7/25/2016 - Violations Should be Closed Out because PWS is in complaince.
9200551	62793	SOX	State Compliance achieved	25-JUL-2016	State	AUTOMATIC RETURN TO COMPLIANCE 7/25/2016 - Violations Should be Closed Out because PWS is in complaince.
9200552	72993	SOX	State Compliance achieved	25-JUL-2016	State	AUTOMATIC RETURN TO COMPLIANCE 7/25/2016 - Violations Should be Closed Out because PWS is in complaince.
9200553	94995	SOX	State Compliance achieved	25-JUL-2016	State	AUTOMATIC RETURN TO COMPLIANCE 7/25/2016 - Violations Should be Closed Out because PWS is in complaince.
9200556	121799	SOX	State Compliance achieved	25-JUL-2016	State	AUTOMATIC RETURN TO COMPLIANCE 7/25/2016 - Violations Should be Closed Out because PWS is in complaince.
9200549	193	SOX	State Compliance achieved	25-JUL-2016	State	AUTOMATIC RETURN TO COMPLIANCE 7/25/2016 - Violations Should be Closed Out because PWS is in complaince.
9200550	7993	SOX	State Compliance achieved	25-JUL-2016	State	AUTOMATIC RETURN TO COMPLIANCE 7/25/2016 - Violations Should be Closed Out because PWS is in complaince.
9200545	139590	SFO	State Administrative/Compliance Order with penalty issued	23-SEP-2015	State	95PT (JUL2015)
9200542	139589	SOX	State Compliance achieved	05-SEP-2015	State	-
#F9200537	139547	SOX	State Compliance achieved	08-MAY-2014	ODSWeb	Entered by EPA Region 6 to address ODS incorrect Validation Error ERR00043 - Y5000 was rejected because the water system does not have a Violation matching the Y5000 ID.
9200528	139524	SIE	State Public Notification requested	11-JUN-2009	State	-
9200528	139519	SIE	State Public Notification requested	11-JUN-2009	State	-
9200528	139520	SIE	State Public Notification requested	11-JUN-2009	State	-
9200526	139516	SOX	State Compliance achieved	29-APR-2009	State	COMPLIANCE W/TTHM MCL TOC TT ACHIEVED.PN RESPONSE TO NOV COMPLETED
9200526	139514	SOX	State Compliance achieved	29-APR-2009	State	COMPLIANCE W/TTHM MCL TOC TT ACHIEVED.PN RESPONSE TO NOV COMPLETED
9200526	139518	SOX	State Compliance achieved	29-APR-2009	State	COMPLIANCE W/TTHM MCL TOC TT ACHIEVED.PN RESPONSE TO NOV COMPLETED
9200526	139517	SOX	State Compliance achieved	29-APR-2009	State	COMPLIANCE W/TTHM MCL TOC TT ACHIEVED.PN RESPONSE TO NOV COMPLETED
9200526	139515	SOX	State Compliance achieved	29-APR-2009	State	COMPLIANCE W/TTHM MCL TOC TT ACHIEVED.PN RESPONSE TO NOV COMPLETED
9200526	139512	SOX	State Compliance achieved	29-APR-2009	State	COMPLIANCE W/TTHM MCL TOC TT ACHIEVED.PN RESPONSE TO NOV COMPLETED
9200506	138705	SOX	State Compliance achieved	21-AUG-2007	State	MONITORING (BROMATE) IN COMPLIANCE NOW USING A LABORATORY CERTIFIED IN BROMATE PARAMETER. PN ACHIEVED.
9200506	139005	SOX	State Compliance achieved	21-AUG-2007	State	MONITORING (BROMATE) IN COMPLIANCE NOW USING A LABORATORY CERTIFIED IN BROMATE PARAMETER. PN ACHIEVED.
9200506	138905	SOX	State Compliance achieved	21-AUG-2007	State	MONITORING (BROMATE) IN COMPLIANCE NOW USING A LABORATORY CERTIFIED IN BROMATE PARAMETER. PN ACHIEVED.
9200506	138805	SOX	State Compliance achieved	21-AUG-2007	State	MONITORING (BROMATE) IN COMPLIANCE NOW USING A LABORATORY CERTIFIED IN BROMATE PARAMETER. PN ACHIEVED.
9200538	133501	SOX	State Compliance achieved	05-JUN-2006	State	PWS return to compliance and consent order closed.
9200538	133601	SOX	State Compliance achieved	05-JUN-2006	State	PWS return to compliance and consent order closed.
9200538	133902	SOX	State Compliance achieved	05-JUN-2006	State	PWS return to compliance and consent order closed.
9200538	134002	SOX	State Compliance achieved	05-JUN-2006	State	PWS return to compliance and consent order closed.
9200538	134202	SOX	State Compliance achieved	05-JUN-2006	State	PWS return to compliance and consent order closed.
9200538	134302	SOX	State Compliance achieved	05-JUN-2006	State	PWS return to compliance and consent order closed.
9200538	134403	SOX	State Compliance achieved	05-JUN-2006	State	PWS return to compliance and consent order closed.
9200538	134503	SOX	State Compliance achieved	05-JUN-2006	State	PWS return to compliance and consent order closed.
9200538	134603	SOX	State Compliance achieved	05-JUN-2006	State	PWS return to compliance and consent order closed.
9200538	134703	SOX	State Compliance achieved	05-JUN-2006	State	PWS return to compliance and consent order closed.
9200538	134803	SOX	State Compliance achieved	05-JUN-2006	State	PWS return to compliance and consent order closed.
9200538	134903	SOX	State Compliance achieved	05-JUN-2006	State	PWS return to compliance and consent order closed.
9200538	135003	SOX	State Compliance achieved	05-JUN-2006	State	PWS return to compliance and consent order closed.
9200538	135103	SOX	State Compliance achieved	05-JUN-2006	State	PWS return to compliance and consent order closed.
9200538	135203	SOX	State Compliance achieved	05-JUN-2006	State	PWS return to compliance and consent order closed.
9200538	135303	SOX	State Compliance achieved	05-JUN-2006	State	PWS return to compliance and consent order closed.
9200538	135403	SOX	State Compliance achieved	05-JUN-2006	State	PWS return to compliance and consent order closed.
9200538	135503	SOX	State Compliance achieved	05-JUN-2006	State	PWS return to compliance and consent order closed.

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WES WATKINS	15761	Yes	Intake	Surface water	Permanent	Active
TWIN LAKES I I	30062	Yes	Intake	Surface water	Permanent	Active
TWIN LAKES I	30061	Yes	Intake	Surface water	Permanent	Active
DISTRIBUTION SYSTEM	17262	No	Distribution System/Zone	-	-	Active
TOC RAW	23130	No	Sampling Station	-	-	Active
COMBINED RAW WATER SAMPLE POINT	30063	No	Sampling Station	-	-	Active
POE01 - WTP	22443	No	Sampling Station	-	-	Inactive
AIRPORT TOWER	30256	No	Storage	-	-	Active
PARK TOWER	30257	No	Storage	-	-	Active
KICKAPOO TOWER	30259	No	Storage	-	-	Active
EDWARDS TOWER	30260	No	Storage	-	-	Active
SHAWNEE WTP	10888	No	Treatment Plant	-	-	Active

1 - 12 of 12

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
SHAWNEE WTP	10888	Rapid Mix	Particulate removal
SHAWNEE WTP	10888	Filtration, Rapid Sand	Particulate removal
SHAWNEE WTP	10888	Sedimentation	Particulate removal
SHAWNEE WTP	10888	Sedimentation	Particulate removal
SHAWNEE WTP	10888	Sedimentation	Particulate removal
SHAWNEE WTP	10888	Filtration, Rapid Sand	Particulate removal
SHAWNEE WTP	10888	Filtration, Rapid Sand	Particulate removal
SHAWNEE WTP	10888	Sedimentation	Particulate removal
SHAWNEE WTP	10888	Sedimentation	Particulate removal
SHAWNEE WTP	10888	Sedimentation	Particulate removal
SHAWNEE WTP	10888	Coagulation	Particulate removal
SHAWNEE WTP	10888	Chlorine Dioxide	Disinfection
SHAWNEE WTP	10888	Chloramines	Disinfection
SHAWNEE WTP	10888	Filtration, Rapid Sand	Particulate 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.

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