SALLISAW, OK · Sequoyah County

SEQUOYAH CO. RWD #8 Water System

Current status

1 open health-based violation on record as of July 4, 2026, alongside 1 other open item(s). See the violation history below for contaminant and status details.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace Oklahoma’s official records. Always confirm current status with Oklahoma before making decisions based on this information.

System facts

System ID (PWSID): OK1020210
System type: Community Water System
Population served: 13,460
Service connections: 5,386
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
April 1, 2025 – April 30, 2025
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2025 – April 30, 2025
Resolved
LSL Reporting
—
LEAD AND COPPER RULE REVISIONS
October 17, 2024
Addressed
LSL Inventory
Health-based
LEAD AND COPPER RULE REVISIONS
October 17, 2024
Addressed
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
November 1, 2021 – November 30, 2021
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
February 1, 2020 – February 29, 2020
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
Benzene
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
Toluene
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
Styrene
January 1, 2020 – December 31, 2022
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2020 – March 31, 2020
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2020 – December 31, 2022
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
October 1, 2019 – October 31, 2019
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
December 1, 2015 – December 31, 2015
Resolved
Monitoring and Reporting (DBP)
—
TTHM
November 1, 2013 – January 31, 2014
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
November 1, 2013 – January 31, 2014
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
August 1, 2013 – October 31, 2013
Resolved
Monitoring and Reporting (DBP)
—
TTHM
August 1, 2013 – October 31, 2013
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
March 1, 2008 – March 31, 2008
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
January 1, 2007 – March 31, 2007
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
October 1, 2006 – December 31, 2006
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
January 1, 2003 – March 31, 2003
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
May 1, 1999 – May 31, 1999
Archived

Resolved addressed and confirmed by the stateAddressed corrective action reported, pending final confirmationArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
April 1, 2025 – April 30, 2025	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
April 1, 2025 – April 30, 2025	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 17, 2024	LSL Reporting	LEAD AND COPPER RULE REVISIONS	—	Addressed
October 17, 2024	LSL Inventory	LEAD AND COPPER RULE REVISIONS	Health-based	Addressed
November 1, 2021 – November 30, 2021	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
February 1, 2020 – February 29, 2020	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	Benzene	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	Toluene	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	Styrene	—	Resolved
January 1, 2020 – March 31, 2020	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
October 1, 2019 – October 31, 2019	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
December 1, 2015 – December 31, 2015	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
November 1, 2013 – January 31, 2014	Monitoring and Reporting (DBP)	TTHM	—	Resolved
November 1, 2013 – January 31, 2014	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
August 1, 2013 – October 31, 2013	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
August 1, 2013 – October 31, 2013	Monitoring and Reporting (DBP)	TTHM	—	Resolved
March 1, 2008 – March 31, 2008	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
January 1, 2007 – March 31, 2007	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
October 1, 2006 – December 31, 2006	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
January 1, 2003 – March 31, 2003	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
May 1, 1999 – May 31, 1999	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived

Resolved addressed and confirmed by the stateAddressed corrective action reported, pending final confirmationArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

July 28, 2023State Public Notification received55 linked violations
March 14, 2023State Public Notification requested119 linked violations
January 12, 2022State Administrative/Compliance Order without penalty issued92 linked violations
July 25, 2016State Compliance achieved59 linked violations
July 25, 2016State Compliance achieved6 linked violations
July 25, 2016State Compliance achieved4 linked violations
April 18, 2008State Violation/Reminder Notice31 linked violations
May 1, 2007State Administrative/Compliance Order with penalty issued37 linked violations
May 1, 2007State Public Notification requested19 linked violations
January 22, 2004State Compliance achieved33 linked violations

Contact

SEQUOYAH CO. RWD #8

918-775-9672

SALLISAW, OK 74955-0627