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PWS ID	OK3006809
PWS Name	SEQUOYAH CO. RWD #4
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water purchased
Primacy Type	State
Is Wholesaler?	No
Population Served	1750
County Served	Sequoyah

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
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	314123	Returned to Compliance	01-JAN-2025	31-JAN-2025	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	314122	Returned to Compliance	01-JAN-2025	31-JAN-2025	No
MR	Failure Submit IDSE/Subpart V Plan Rpt	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	314118	Returned to Compliance	30-JUN-2018	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	314117	Returned to Compliance	01-APR-2018	30-JUN-2018	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	314115	Returned to Compliance	01-JAN-2018	31-MAR-2018	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	314116	Returned to Compliance	01-OCT-2017	31-DEC-2017	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	314114	Returned to Compliance	01-JUL-2017	30-SEP-2017	Yes
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	314111	Returned to Compliance	01-OCT-2013	30-NOV-2013	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	314112	Returned to Compliance	01-OCT-2013	30-NOV-2013	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	314108	Returned to Compliance	01-MAY-2009	31-MAY-2009	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	314105	Returned to Compliance	01-JUN-2005	30-JUN-2005	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	313804	Returned to Compliance	01-SEP-2003	30-SEP-2003	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	313603	Returned to Compliance	01-JUN-2003	30-JUN-2003	No
MR	Monitoring, Repeat Minor (TCR)	Total Coliform Rule	Coliform (TCR)	313503	Returned to Compliance	01-MAY-2003	31-MAY-2003	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	13599	Returned to Compliance	01-OCT-1998	31-OCT-1998	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	313198	Returned to Compliance	01-SEP-1998	30-SEP-1998	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	107197	Returned to Compliance	01-SEP-1997	30-SEP-1997	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	91795	Returned to Compliance	01-MAY-1995	31-MAY-1995	No

1 - 18 of 18

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
9145839	314122	SIF	State Public Notification received	30-JUN-2025	State	-
9145839	314123	SIF	State Public Notification received	30-JUN-2025	State	-
9145827	314116	SOX	State Compliance achieved	24-APR-2019	State	Stage 2 DBP TTHM MCL; closed NOVs 18-1 & 18-2, due to system achieving compliance.
9145827	314114	SOX	State Compliance achieved	24-APR-2019	State	Stage 2 DBP TTHM MCL; closed NOVs 18-1 & 18-2, due to system achieving compliance.
9145827	314118	SOX	State Compliance achieved	24-APR-2019	State	Stage 2 DBP TTHM MCL; closed NOVs 18-1 & 18-2, due to system achieving compliance.
9145827	314117	SOX	State Compliance achieved	24-APR-2019	State	Stage 2 DBP TTHM MCL; closed NOVs 18-1 & 18-2, due to system achieving compliance.
9145827	314115	SOX	State Compliance achieved	24-APR-2019	State	Stage 2 DBP TTHM MCL; closed NOVs 18-1 & 18-2, due to system achieving compliance.
9145815	313198	SOX	State Compliance achieved	04-AUG-2016	State	AUTOMATIC RETURN TO COMPLIANCE 8/4/2016 - Violations Should be Closed Out because PWS is in complaince.
9145813	91795	SOX	State Compliance achieved	04-AUG-2016	State	AUTOMATIC RETURN TO COMPLIANCE 8/4/2016 - Violations Should be Closed Out because PWS is in complaince.
9145816	13599	SOX	State Compliance achieved	04-AUG-2016	State	AUTOMATIC RETURN TO COMPLIANCE 8/4/2016 - Violations Should be Closed Out because PWS is in complaince.
9145814	107197	SOX	State Compliance achieved	04-AUG-2016	State	AUTOMATIC RETURN TO COMPLIANCE 8/4/2016 - Violations Should be Closed Out because PWS is in complaince.
9145811	314111	SOX	State Compliance achieved	04-DEC-2014	State	It was the decision of DEQ to not pursue any TTHMs and HAA5s monitoring from 10-1-2013 through March-31-2014. All violation will be migrated as validated and then return to compliance. ERH 12/03/2014
9145811	314112	SOX	State Compliance achieved	04-DEC-2014	State	It was the decision of DEQ to not pursue any TTHMs and HAA5s monitoring from 10-1-2013 through March-31-2014. All violation will be migrated as validated and then return to compliance. ERH 12/03/2014
9145809	314108	SIE	State Public Notification requested	27-JUL-2009	State	-
9145305	314105	SIE	State Public Notification requested	15-AUG-2005	State	-
9145604	313603	SOX	State Compliance achieved	17-NOV-2003	State	Migrated - SOX date determined by receipt of Public Notice
9145504	313503	SOX	State Compliance achieved	17-NOV-2003	State	Migrated - SOX date determined by receipt of Public Notice
9145704	313804	SOX	State Compliance achieved	17-NOV-2003	State	Migrated - SOX date determined by receipt of Public Notice

1 - 18 of 18

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
SALLISAW	17012	Yes	Consecutive Connection	Surface water	Permanent	Active
DISTRIBUTION SYSTEM	18945	No	Distribution System/Zone	-	-	Active
MAIN PUMP STATION	29136	No	Pump Facility	-	-	Active
TOWER PUMP STATION	29137	No	Pump Facility	-	-	Active
EAST PUMP STATION	30407	No	Pump Facility	-	-	Active
STORAGE TOWER 1	29138	No	Storage	-	-	Active
STORAGE TOWER 2	29139	No	Storage	-	-	Active

1 - 7 of 7

Treatment Processes

No treatment process(es) found. EPA has no record of treatment process(es) reported by the primacy agency for this water system.

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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