PIEDMONT, OK · Canadian County

PIEDMONT MUNICIPAL AUTHORITY 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): OK2000909
System type: Community Water System
Population served: 7,542
Service connections: 2,951
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Monitoring, Regular
—
Combined Radium (-226 and -228)
July 1, 2025 – September 30, 2025
Archived
Monitoring, Regular
—
Combined Uranium
April 1, 2025 – June 30, 2025
Archived
Monitoring, Regular
—
Combined Radium (-226 and -228)
April 1, 2025 – June 30, 2025
Archived
Monitoring, Regular
—
Gross Beta Particle Activity
April 1, 2025 – June 30, 2025
Archived
Monitoring and Reporting (DBP)
—
Chlorine
August 1, 2024 – August 31, 2024
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
January 1, 2024 – March 31, 2024
Resolved
Monitoring, Regular
—
Simazine
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
December 1, 2023 – December 31, 2023
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
October 1, 2023 – December 31, 2023
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
July 1, 2023 – September 30, 2023
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
June 1, 2023 – May 31, 2024
Resolved
Monitoring, Regular
—
Simazine
January 1, 2022 – December 31, 2022
Resolved
Monitoring, Regular
—
Glyphosate
January 1, 2022 – December 31, 2022
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
November 1, 2020 – November 30, 2020
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2020 – December 31, 2020
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2020 – June 30, 2020
Resolved
Monitoring, Regular
—
Glyphosate
January 1, 2019 – March 31, 2019
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
April 1, 2016 – June 30, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
April 1, 2016 – June 30, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
January 1, 2016 – March 31, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
January 1, 2016 – March 31, 2016
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
October 1, 2015 – December 31, 2015
Resolved
Monitoring, Regular
—
Gross Beta Particle Activity
October 1, 2015 – December 31, 2015
Resolved
Monitoring, Regular
—
Combined Uranium
October 1, 2015 – December 31, 2015
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Combined Uranium
July 1, 2015 – September 30, 2015
Resolved
Monitoring, Regular
—
Benzene
January 1, 2014 – December 31, 2019
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2014 – December 31, 2019
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2014 – December 31, 2019
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2014 – December 31, 2019
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2014 – December 31, 2019
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2014 – December 31, 2019
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2014 – December 31, 2019
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2014 – December 31, 2019
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2014 – December 31, 2019
Resolved
Monitoring, Regular
—
Styrene
January 1, 2014 – December 31, 2019
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
November 1, 2010 – November 30, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
July 1, 2009 – September 30, 2009
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
January 1, 2009 – March 31, 2009
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
October 1, 2008 – December 31, 2008
Resolved
Monitoring, Routine (IDSE)
—
Total Haloacetic Acids (HAA5)
November 1, 2007 – January 31, 2008
Resolved
Monitoring, Routine (IDSE)
—
TTHM
November 1, 2007 – January 31, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
October 1, 2007 – December 31, 2007
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
October 1, 2005 – December 31, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
October 1, 2005 – December 31, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
October 1, 2005 – December 31, 2005
Resolved

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

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2025 – September 30, 2025	Monitoring, Regular	Combined Radium (-226 and -228)	—	Archived
April 1, 2025 – June 30, 2025	Monitoring, Regular	Combined Uranium	—	Archived
April 1, 2025 – June 30, 2025	Monitoring, Regular	Combined Radium (-226 and -228)	—	Archived
April 1, 2025 – June 30, 2025	Monitoring, Regular	Gross Beta Particle Activity	—	Archived
August 1, 2024 – August 31, 2024	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2024 – March 31, 2024	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	Simazine	—	Resolved
December 1, 2023 – December 31, 2023	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
October 1, 2023 – December 31, 2023	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
July 1, 2023 – September 30, 2023	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
June 1, 2023 – May 31, 2024	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2022 – December 31, 2022	Monitoring, Regular	Simazine	—	Resolved
January 1, 2022 – December 31, 2022	Monitoring, Regular	Glyphosate	—	Resolved
November 1, 2020 – November 30, 2020	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
October 1, 2020 – December 31, 2020	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
April 1, 2020 – June 30, 2020	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2019 – March 31, 2019	Monitoring, Regular	Glyphosate	—	Resolved
April 1, 2016 – June 30, 2016	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
April 1, 2016 – June 30, 2016	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Resolved
January 1, 2016 – March 31, 2016	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Resolved
January 1, 2016 – March 31, 2016	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
October 1, 2015 – December 31, 2015	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
October 1, 2015 – December 31, 2015	Monitoring, Regular	Gross Beta Particle Activity	—	Resolved
October 1, 2015 – December 31, 2015	Monitoring, Regular	Combined Uranium	—	Resolved
July 1, 2015 – September 30, 2015	Maximum Contaminant Level Violation, Single Sample	Combined Uranium	Health-based	Resolved
January 1, 2014 – December 31, 2019	Monitoring, Regular	Benzene	—	Resolved
January 1, 2014 – December 31, 2019	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2014 – December 31, 2019	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2014 – December 31, 2019	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2014 – December 31, 2019	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2014 – December 31, 2019	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2014 – December 31, 2019	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2014 – December 31, 2019	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2014 – December 31, 2019	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2014 – December 31, 2019	Monitoring, Regular	Styrene	—	Resolved
November 1, 2010 – November 30, 2010	Monitoring, Source Water (GWR)	E. COLI	—	Resolved
July 1, 2009 – September 30, 2009	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Resolved
January 1, 2009 – March 31, 2009	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Resolved
October 1, 2008 – December 31, 2008	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Resolved
November 1, 2007 – January 31, 2008	Monitoring, Routine (IDSE)	Total Haloacetic Acids (HAA5)	—	Resolved
November 1, 2007 – January 31, 2008	Monitoring, Routine (IDSE)	TTHM	—	Resolved
October 1, 2007 – December 31, 2007	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Resolved
October 1, 2005 – December 31, 2005	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Resolved
October 1, 2005 – December 31, 2005	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Resolved
October 1, 2005 – December 31, 2005	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved

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

Enforcement actions

July 11, 2025State Violation/Reminder Notice10 linked violations
July 9, 2025State Compliance achieved64 linked violations
May 19, 2025State Compliance achieved62 linked violations
October 21, 2024State Violation/Reminder Notice12 linked violations
May 28, 2024State Public Notification requested22 linked violations
March 29, 2024State Compliance achieved10 linked violations
March 14, 2023State Violation/Reminder Notice9 linked violations
March 14, 2023State Violation/Reminder Notice6 linked violations
January 15, 2022State Public Notification received10 linked violations
March 6, 2021State Public Notification received12 linked violations
March 6, 2021State Public Notification received10 linked violations
March 6, 2021State Public Notification received11 linked violations
March 31, 2020State Compliance achieved31 linked violations
June 10, 2019State Compliance achieved9 linked violations
May 31, 2019State Public Notification requested13 linked violations
May 31, 2019State Public Notification requested18 linked violations
August 4, 2016State Compliance achieved7 linked violations
August 4, 2016State Compliance achieved7 linked violations
August 4, 2016State Compliance achieved6 linked violations
August 4, 2016State Compliance achieved14 linked violations
August 4, 2016State Compliance achieved8 linked violations
August 4, 2016State Compliance achieved13 linked violations
February 20, 2015State Compliance achieved2 linked violations
February 20, 2015State Compliance achieved11 linked violations
December 28, 2010Federal Compliance achieved1 linked violation
August 13, 2010State Compliance achieved20 linked violations
November 5, 2009State Administrative/Compliance Order with penalty issued20 linked violations

Contact

PIEDMONT MUNICIPAL AUTHORITY

405-373-2000

PIEDMONT, OK 73078