Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	OK1020515
PWS Name	CHECOTAH PWA
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	3481
County Served	McIntosh

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
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	119718	Known	01-JUL-2025	30-SEP-2025	Yes
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	119716	Open	01-JUL-2025	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	119714	Returned to Compliance	01-JUN-2025	30-JUN-2025	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	119715	Returned to Compliance	01-JUN-2025	30-JUN-2025	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	119717	Known	01-APR-2025	30-JUN-2025	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	119709	Known	01-OCT-2024	31-DEC-2024	Yes
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorite	119708	Returned to Compliance	01-JUL-2024	31-JUL-2024	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	119679	Returned to Compliance	01-JUL-2023	30-SEP-2023	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	119678	Returned to Compliance	01-JUL-2023	30-SEP-2023	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	119654	Returned to Compliance	01-JUN-2020	30-JUN-2020	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	119655	Returned to Compliance	01-APR-2020	30-JUN-2020	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	119643	Returned to Compliance	01-JAN-2019	31-MAR-2019	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	119644	Returned to Compliance	01-JAN-2019	31-MAR-2019	Yes
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	119642	Returned to Compliance	01-NOV-2018	30-NOV-2018	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	119638	Returned to Compliance	01-OCT-2018	31-DEC-2018	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	119637	Returned to Compliance	01-JUL-2018	30-SEP-2018	Yes
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	119635	Returned to Compliance	01-JUL-2018	31-JUL-2018	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	119628	Returned to Compliance	01-JAN-2018	31-MAR-2018	Yes
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	119625	Known	01-OCT-2017	31-DEC-2017	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	119626	Returned to Compliance	01-OCT-2017	31-DEC-2017	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	119620	Returned to Compliance	01-JUL-2017	30-SEP-2017	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	119615	Returned to Compliance	01-APR-2017	30-JUN-2017	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	119606	Returned to Compliance	01-JAN-2017	31-MAR-2017	Yes
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	119611	Returned to Compliance	01-JAN-2017	31-MAR-2017	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	119597	Returned to Compliance	01-OCT-2016	31-DEC-2016	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	119599	Returned to Compliance	01-JUL-2016	30-SEP-2016	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	119580	Returned to Compliance	01-JUL-2015	30-SEP-2015	Yes
TT	Monthly Turbidity Exceed (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	119578	Returned to Compliance	01-JUN-2015	30-JUN-2015	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	119579	Returned to Compliance	01-APR-2015	30-JUN-2015	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	119577	Returned to Compliance	01-JAN-2015	31-MAR-2015	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	119566	Returned to Compliance	01-NOV-2013	30-NOV-2013	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	119565	Returned to Compliance	01-JUL-2013	30-SEP-2013	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	119564	Returned to Compliance	01-APR-2013	30-JUN-2013	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	119563	Returned to Compliance	01-JAN-2013	31-MAR-2013	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	119561	Returned to Compliance	01-OCT-2012	31-OCT-2012	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	119562	Returned to Compliance	01-OCT-2012	31-DEC-2012	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	119560	Returned to Compliance	01-JUL-2012	30-SEP-2012	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	119557	Returned to Compliance	01-APR-2012	30-JUN-2012	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	119556	Returned to Compliance	01-JAN-2011	31-MAR-2011	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	119555	Returned to Compliance	01-OCT-2010	31-DEC-2010	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	119554	Returned to Compliance	01-JUL-2010	30-SEP-2010	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	119553	Returned to Compliance	01-APR-2010	30-JUN-2010	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	119552	Returned to Compliance	01-JAN-2010	31-MAR-2010	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	119550	Returned to Compliance	01-OCT-2009	31-DEC-2009	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	119549	Returned to Compliance	01-JUL-2009	30-SEP-2009	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	119548	Returned to Compliance	01-JUL-2009	30-SEP-2009	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	119547	Returned to Compliance	01-JUL-2009	30-SEP-2009	Yes
TT	Monthly Turbidity Exceed (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	119546	Returned to Compliance	01-JUL-2009	31-JUL-2009	Yes
TT	Monthly Turbidity Exceed (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	119542	Returned to Compliance	01-MAY-2009	31-MAY-2009	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	119543	Returned to Compliance	01-APR-2009	30-JUN-2009	Yes

1 - 50 of 116

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
9155038	119718	SFL	State Administrative/Compliance Order without penalty issued	20-OCT-2025	State	3Q2025 TTHM MCL
9155035	119715	SOX	State Compliance achieved	07-OCT-2025	State	-
9155034	119714	SOX	State Compliance achieved	07-OCT-2025	State	-
9155033	119717	SFL	State Administrative/Compliance Order without penalty issued	04-SEP-2025	State	2Q2025 TTHM MCL
9155029	119709	SFL	State Administrative/Compliance Order without penalty issued	13-FEB-2025	State	4Q2024 TTHM MCL
9155027	119708	SOX	State Compliance achieved	06-DEC-2024	State	-
9155022	119678	SIF	State Public Notification received	16-NOV-2023	State	-
9155021	119679	SIF	State Public Notification received	16-NOV-2023	State	-
9155010	119654	SOX	State Compliance achieved	13-AUG-2021	State	-
9155011	119655	SOX	State Compliance achieved	13-AUG-2021	State	-
9155003	119560	SOX	State Compliance achieved	24-NOV-2020	State	Stage 2 TTHM & HAA5 MCL & TOC TT; closed due to all requirements have been fulfilled.
9155003	119562	SOX	State Compliance achieved	24-NOV-2020	State	Stage 2 TTHM & HAA5 MCL & TOC TT; closed due to all requirements have been fulfilled.
9155003	119563	SOX	State Compliance achieved	24-NOV-2020	State	Stage 2 TTHM & HAA5 MCL & TOC TT; closed due to all requirements have been fulfilled.
9155003	119564	SOX	State Compliance achieved	24-NOV-2020	State	Stage 2 TTHM & HAA5 MCL & TOC TT; closed due to all requirements have been fulfilled.
9155003	119565	SOX	State Compliance achieved	24-NOV-2020	State	Stage 2 TTHM & HAA5 MCL & TOC TT; closed due to all requirements have been fulfilled.
9155003	119597	SOX	State Compliance achieved	24-NOV-2020	State	Stage 2 TTHM & HAA5 MCL & TOC TT; closed due to all requirements have been fulfilled.
9155003	119599	SOX	State Compliance achieved	24-NOV-2020	State	Stage 2 TTHM & HAA5 MCL & TOC TT; closed due to all requirements have been fulfilled.
9155003	119606	SOX	State Compliance achieved	24-NOV-2020	State	Stage 2 TTHM & HAA5 MCL & TOC TT; closed due to all requirements have been fulfilled.
9155003	119615	SOX	State Compliance achieved	24-NOV-2020	State	Stage 2 TTHM & HAA5 MCL & TOC TT; closed due to all requirements have been fulfilled.
9155003	119620	SOX	State Compliance achieved	24-NOV-2020	State	Stage 2 TTHM & HAA5 MCL & TOC TT; closed due to all requirements have been fulfilled.
9155003	119626	SOX	State Compliance achieved	24-NOV-2020	State	Stage 2 TTHM & HAA5 MCL & TOC TT; closed due to all requirements have been fulfilled.
9155003	119628	SOX	State Compliance achieved	24-NOV-2020	State	Stage 2 TTHM & HAA5 MCL & TOC TT; closed due to all requirements have been fulfilled.
9155003	119637	SOX	State Compliance achieved	24-NOV-2020	State	Stage 2 TTHM & HAA5 MCL & TOC TT; closed due to all requirements have been fulfilled.
9155003	119638	SOX	State Compliance achieved	24-NOV-2020	State	Stage 2 TTHM & HAA5 MCL & TOC TT; closed due to all requirements have been fulfilled.
9155003	119643	SOX	State Compliance achieved	24-NOV-2020	State	Stage 2 TTHM & HAA5 MCL & TOC TT; closed due to all requirements have been fulfilled.
9155003	119644	SOX	State Compliance achieved	24-NOV-2020	State	Stage 2 TTHM & HAA5 MCL & TOC TT; closed due to all requirements have been fulfilled.
9155003	119557	SOX	State Compliance achieved	24-NOV-2020	State	Stage 2 TTHM & HAA5 MCL & TOC TT; closed due to all requirements have been fulfilled.
9154995	119635	SOX	State Compliance achieved	05-SEP-2019	State	July 2018 Chlorine TT; closed due to system achieving compliance with NOV.
9154992	118205	SFO	State Administrative/Compliance Order with penalty issued	23-MAY-2019	State	Stage 2 TTHM & HAA5 MCL & TOC TT
9154992	119580	SFO	State Administrative/Compliance Order with penalty issued	23-MAY-2019	State	Stage 2 TTHM & HAA5 MCL & TOC TT
9154992	119579	SFO	State Administrative/Compliance Order with penalty issued	23-MAY-2019	State	Stage 2 TTHM & HAA5 MCL & TOC TT
9154992	119577	SFO	State Administrative/Compliance Order with penalty issued	23-MAY-2019	State	Stage 2 TTHM & HAA5 MCL & TOC TT
9154992	119556	SFO	State Administrative/Compliance Order with penalty issued	23-MAY-2019	State	Stage 2 TTHM & HAA5 MCL & TOC TT
9154992	119555	SFO	State Administrative/Compliance Order with penalty issued	23-MAY-2019	State	Stage 2 TTHM & HAA5 MCL & TOC TT
9154992	119554	SFO	State Administrative/Compliance Order with penalty issued	23-MAY-2019	State	Stage 2 TTHM & HAA5 MCL & TOC TT
9154992	116504	SFO	State Administrative/Compliance Order with penalty issued	23-MAY-2019	State	Stage 2 TTHM & HAA5 MCL & TOC TT
9154992	116705	SFO	State Administrative/Compliance Order with penalty issued	23-MAY-2019	State	Stage 2 TTHM & HAA5 MCL & TOC TT
9154992	116905	SFO	State Administrative/Compliance Order with penalty issued	23-MAY-2019	State	Stage 2 TTHM & HAA5 MCL & TOC TT
9154992	117305	SFO	State Administrative/Compliance Order with penalty issued	23-MAY-2019	State	Stage 2 TTHM & HAA5 MCL & TOC TT
9154992	117805	SFO	State Administrative/Compliance Order with penalty issued	23-MAY-2019	State	Stage 2 TTHM & HAA5 MCL & TOC TT
9154992	118005	SFO	State Administrative/Compliance Order with penalty issued	23-MAY-2019	State	Stage 2 TTHM & HAA5 MCL & TOC TT
9154992	118606	SFO	State Administrative/Compliance Order with penalty issued	23-MAY-2019	State	Stage 2 TTHM & HAA5 MCL & TOC TT
9154992	119006	SFO	State Administrative/Compliance Order with penalty issued	23-MAY-2019	State	Stage 2 TTHM & HAA5 MCL & TOC TT
9154992	119306	SFO	State Administrative/Compliance Order with penalty issued	23-MAY-2019	State	Stage 2 TTHM & HAA5 MCL & TOC TT
9154992	119509	SFO	State Administrative/Compliance Order with penalty issued	23-MAY-2019	State	Stage 2 TTHM & HAA5 MCL & TOC TT
9154992	119512	SFO	State Administrative/Compliance Order with penalty issued	23-MAY-2019	State	Stage 2 TTHM & HAA5 MCL & TOC TT
9154992	119515	SFO	State Administrative/Compliance Order with penalty issued	23-MAY-2019	State	Stage 2 TTHM & HAA5 MCL & TOC TT
9154992	119518	SFO	State Administrative/Compliance Order with penalty issued	23-MAY-2019	State	Stage 2 TTHM & HAA5 MCL & TOC TT
9154992	119524	SFO	State Administrative/Compliance Order with penalty issued	23-MAY-2019	State	Stage 2 TTHM & HAA5 MCL & TOC TT
9154992	119528	SFO	State Administrative/Compliance Order with penalty issued	23-MAY-2019	State	Stage 2 TTHM & HAA5 MCL & TOC TT

1 - 50 of 114

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
LAKE EUFAULA	31617	Yes	Intake	Surface water	Permanent	Active
DEEP FORK ARM OF LAKE EUFAULA	15770	Yes	Intake	Surface water	Permanent	Inactive
DISTRIBUTION SYSTEM	17269	No	Distribution System/Zone	-	-	Active
RAW WATER PUMP STATION	30654	No	Pump Facility	-	-	Active
POE01 - WTP	22456	No	Sampling Station	-	-	Active
TOC RAW	23137	No	Sampling Station	-	-	Active
GROUND STORAGE AT THE PLANT	22816	No	Storage	-	-	Active
BUSINESS 69 STANDPIPE	22814	No	Storage	-	-	Inactive
SOUTH STANDPIPE	22815	No	Storage	-	-	Inactive
CHECOTAH WTP NEW	25574	No	Treatment Plant	-	-	Active
CHECOTAH WTP	10895	No	Treatment Plant	-	-	Inactive

1 - 11 of 11

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
CHECOTAH WTP	10895	Gaseous Chlorination, Post	Disinfection
CHECOTAH WTP	10895	Gaseous Chlorination, Pre	Disinfection
CHECOTAH WTP	10895	Filtration, Rapid Sand	Particulate removal
CHECOTAH WTP	10895	Fluoridation	Other
CHECOTAH WTP NEW	25574	Chlorine Dioxide	Disinfection
CHECOTAH WTP NEW	25574	Hypochlorination, Pre	Disinfection
CHECOTAH WTP NEW	25574	Flocculation	Particulate removal
CHECOTAH WTP NEW	25574	Sedimentation	Organics removal
CHECOTAH WTP NEW	25574	Filtration, Rapid Sand	Organics removal

1 - 9 of 9

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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