WISTER, OK · Le Flore County

WISTER Water System

Current status

No open violations on record as of July 4, 2026.

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): OK3004014
System type: Community Water System
Population served: 1,002
Service connections: 612
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Failure Submit IDSE/Subpart V Plan Rpt
—
Total Haloacetic Acids (HAA5)
September 29, 2025 – November 7, 2025
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
July 1, 2023 – December 15, 2023
Resolved
Monitoring, Routine (IDSE)
—
Total Haloacetic Acids (HAA5)
June 1, 2009 – August 31, 2009
Resolved
Monitoring, Routine (IDSE)
—
Total Haloacetic Acids (HAA5)
May 1, 2008 – July 31, 2008
Resolved
Monitoring, Routine (IDSE)
—
TTHM
May 1, 2008 – July 31, 2008
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
November 1, 2005 – November 30, 2005
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
October 1, 2005 – October 31, 2005
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 2000 – December 31, 2000
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 2000 – November 30, 2000
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 2000 – July 31, 2000
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 1999 – September 30, 1999
Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
September 29, 2025 – November 7, 2025	Failure Submit IDSE/Subpart V Plan Rpt	Total Haloacetic Acids (HAA5)	—	Resolved
July 1, 2023 – December 15, 2023	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
June 1, 2009 – August 31, 2009	Monitoring, Routine (IDSE)	Total Haloacetic Acids (HAA5)	—	Resolved
May 1, 2008 – July 31, 2008	Monitoring, Routine (IDSE)	Total Haloacetic Acids (HAA5)	—	Resolved
May 1, 2008 – July 31, 2008	Monitoring, Routine (IDSE)	TTHM	—	Resolved
November 1, 2005 – November 30, 2005	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
October 1, 2005 – October 31, 2005	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
December 1, 2000 – December 31, 2000	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
November 1, 2000 – November 30, 2000	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2000 – July 31, 2000	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
September 1, 1999 – September 30, 1999	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

November 7, 2025State Compliance achieved1 linked violation
November 5, 2025State Violation/Reminder Notice1 linked violation
May 2, 2025State Public Notification received1 linked violation
December 4, 2024State Compliance achieved1 linked violation
August 21, 2024State Violation/Reminder Notice1 linked violation
August 21, 2024State Public Notification requested1 linked violation
June 3, 2024State Public Notification received1 linked violation
December 15, 2023State Compliance achieved1 linked violation
August 30, 2023State Public Notification requested1 linked violation
August 30, 2023State Violation/Reminder Notice1 linked violation
August 4, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 4, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 4, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 4, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 4, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 4, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 4, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 4, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 4, 2016State Compliance achieved1 linked violation
August 4, 2016State Compliance achieved1 linked violation
August 4, 2016State Compliance achieved1 linked violation
August 4, 2016State Compliance achieved1 linked violation
August 4, 2016State Compliance achieved1 linked violation
May 8, 2014State Compliance achieved1 linked violation
May 8, 2014State Compliance achieved1 linked violation
May 8, 2014State Compliance achieved1 linked violation
May 8, 2014State Compliance achieved1 linked violation
May 8, 2014State Compliance achieved1 linked violation
May 8, 2014State Compliance achieved1 linked violation
July 24, 2009Federal Violation/Reminder Notice2 linked violations
December 9, 2008Federal Violation/Reminder Notice2 linked violations
February 3, 2006State Compliance achieved3 linked violations
February 3, 2006State Public Notification received7 linked violations
November 16, 2005State Public Notification requested5 linked violations
April 26, 2001State Violation/Reminder Notice10 linked violations

Contact

WISTER

918-647-7955

WISTER, OK 74966