MIAMI, OK · Ottawa County
MIAMI Water System
Consumer Confidence Report status
MIAMI must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.
As of August 1, 2026, EPA's federal records show no open violations for MIAMI.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 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)
- OK2005813
- System type
- Community Water System
- Population served
- 13,704
- Service connections
- 5,259
- Ownership
- local government
- Water source
- groundwater (wells)
MIAMI is one of 56 community water systems in Oklahoma in the 10,001 to 100,000 people size category, serving 13,704 people from groundwater.
As of August 1, 2026, its federal record holds 71 entries between 2007 and 2024, all of which EPA lists as closed.
Of the 71, 68 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves volatile organic chemicals, the Stage 2 Disinfectants and Disinfection Byproducts Rule, and inorganic chemicals.
Violation history
Monitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
July 1, 2024 – September 30, 2024
ResolvedMonitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
October 1, 2022 – December 31, 2022
ResolvedMonitoring and Reporting (DBP)
—TTHM
October 1, 2022 – December 31, 2022
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2021 – August 30, 2022
ResolvedConsumer Confidence Report Inadequate Reporting
—Consumer Confidence Rule
October 2, 2020 – August 30, 2022
ResolvedConsumer Confidence Report Inadequate Reporting
—Consumer Confidence Rule
December 2, 2019 – August 30, 2022
ResolvedMonitoring, Source Water (GWR)
—E. COLI
October 29, 2019 – February 7, 2020
ResolvedMonitoring, Regular
—Nitrate-Nitrite
January 1, 2019 – December 31, 2019
ResolvedMonitoring, Regular
—Nitrate-Nitrite
January 1, 2019 – December 31, 2019
ResolvedMonitoring, Regular
—Nitrate-Nitrite
January 1, 2019 – December 31, 2019
ResolvedMonitoring, Regular
—Nitrate-Nitrite
January 1, 2019 – December 31, 2019
ResolvedMonitoring, Regular
—cis-1,2-Dichloroethylene
January 1, 2019 – December 31, 2019
ResolvedMonitoring, Regular
—Xylenes, Total
January 1, 2019 – December 31, 2019
ResolvedMonitoring, Regular
—DICHLOROMETHANE
January 1, 2019 – December 31, 2019
ResolvedMonitoring, Regular
—o-Dichlorobenzene
January 1, 2019 – December 31, 2019
ResolvedMonitoring, Regular
—p-Dichlorobenzene
January 1, 2019 – December 31, 2019
ResolvedMonitoring, Regular
—Carbon tetrachloride
January 1, 2019 – December 31, 2019
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
January 1, 2019 – December 31, 2019
ResolvedMonitoring, Regular
—1,2-Dichloroethane
January 1, 2019 – December 31, 2019
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
January 1, 2019 – December 31, 2019
ResolvedMonitoring, Regular
—1,1-Dichloroethylene
January 1, 2019 – December 31, 2019
ResolvedMonitoring, Regular
—1,2,4-Trichlorobenzene
January 1, 2019 – December 31, 2019
ResolvedMonitoring, Regular
—Styrene
January 1, 2019 – December 31, 2019
ResolvedMonitoring, Regular
—Ethylbenzene
January 1, 2019 – December 31, 2019
ResolvedMonitoring, Regular
—Benzene
January 1, 2019 – December 31, 2019
ResolvedMonitoring, Regular
—Toluene
January 1, 2019 – December 31, 2019
ResolvedMonitoring, Regular
—CHLOROBENZENE
January 1, 2019 – December 31, 2019
ResolvedMonitoring, Regular
—Tetrachloroethylene
January 1, 2019 – December 31, 2019
ResolvedMonitoring, Regular
—Vinyl chloride
January 1, 2019 – December 31, 2019
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
January 1, 2019 – December 31, 2019
ResolvedMonitoring, Regular
—Trichloroethylene
January 1, 2019 – December 31, 2019
ResolvedMonitoring, Regular
—1,2-Dichloropropane
January 1, 2019 – December 31, 2019
ResolvedMonitoring, Regular
—Benzene
July 1, 2017 – September 30, 2017
ResolvedMonitoring, Regular
—1,2,4-Trichlorobenzene
July 1, 2017 – September 30, 2017
ResolvedMonitoring, Regular
—DICHLOROMETHANE
July 1, 2017 – September 30, 2017
ResolvedMonitoring, Regular
—Vinyl chloride
July 1, 2017 – September 30, 2017
ResolvedMonitoring, Regular
—1,1-Dichloroethylene
July 1, 2017 – September 30, 2017
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
July 1, 2017 – September 30, 2017
ResolvedMonitoring, Regular
—1,2-Dichloroethane
July 1, 2017 – September 30, 2017
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
July 1, 2017 – September 30, 2017
ResolvedMonitoring, Regular
—Carbon tetrachloride
July 1, 2017 – September 30, 2017
ResolvedMonitoring, Regular
—1,2-Dichloropropane
July 1, 2017 – September 30, 2017
ResolvedMonitoring, Regular
—Trichloroethylene
July 1, 2017 – September 30, 2017
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
July 1, 2017 – September 30, 2017
ResolvedMonitoring, Regular
—Tetrachloroethylene
July 1, 2017 – September 30, 2017
ResolvedMonitoring, Regular
—CHLOROBENZENE
July 1, 2017 – September 30, 2017
ResolvedMonitoring, Regular
—Toluene
July 1, 2017 – September 30, 2017
ResolvedMonitoring, Regular
—Ethylbenzene
July 1, 2017 – September 30, 2017
ResolvedMonitoring, Regular
—Styrene
July 1, 2017 – September 30, 2017
ResolvedMonitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
January 1, 2017 – March 31, 2017
ResolvedMonitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
October 1, 2016 – December 31, 2016
ResolvedMonitoring, Regular
—Toluene
October 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—Benzene
October 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—CHLOROBENZENE
October 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—Tetrachloroethylene
October 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
October 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—1,2-Dichloropropane
October 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—Carbon tetrachloride
October 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
October 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—1,2-Dichloroethane
October 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
October 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—1,1-Dichloroethylene
October 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—Vinyl chloride
October 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—p-Dichlorobenzene
October 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—o-Dichlorobenzene
October 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—DICHLOROMETHANE
October 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—Xylenes, Total
October 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—cis-1,2-Dichloroethylene
October 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—1,2,4-Trichlorobenzene
October 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—Styrene
October 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—Nitrate-Nitrite
January 1, 2007 – December 31, 2007
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| July 1, 2024 – September 30, 2024 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
| October 1, 2022 – December 31, 2022 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
| October 1, 2022 – December 31, 2022 | Monitoring and Reporting (DBP) | TTHM | — | Resolved |
| July 1, 2021 – August 30, 2022 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| October 2, 2020 – August 30, 2022 | Consumer Confidence Report Inadequate Reporting | Consumer Confidence Rule | — | Resolved |
| December 2, 2019 – August 30, 2022 | Consumer Confidence Report Inadequate Reporting | Consumer Confidence Rule | — | Resolved |
| October 29, 2019 – February 7, 2020 | Monitoring, Source Water (GWR) | E. COLI | — | Resolved |
| January 1, 2019 – December 31, 2019 | Monitoring, Regular | Nitrate-Nitrite | — | Resolved |
| January 1, 2019 – December 31, 2019 | Monitoring, Regular | Nitrate-Nitrite | — | Resolved |
| January 1, 2019 – December 31, 2019 | Monitoring, Regular | Nitrate-Nitrite | — | Resolved |
| January 1, 2019 – December 31, 2019 | Monitoring, Regular | Nitrate-Nitrite | — | Resolved |
| January 1, 2019 – December 31, 2019 | Monitoring, Regular | cis-1,2-Dichloroethylene | — | Resolved |
| January 1, 2019 – December 31, 2019 | Monitoring, Regular | Xylenes, Total | — | Resolved |
| January 1, 2019 – December 31, 2019 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| January 1, 2019 – December 31, 2019 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| January 1, 2019 – December 31, 2019 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| January 1, 2019 – December 31, 2019 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| January 1, 2019 – December 31, 2019 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| January 1, 2019 – December 31, 2019 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| January 1, 2019 – December 31, 2019 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| January 1, 2019 – December 31, 2019 | Monitoring, Regular | 1,1-Dichloroethylene | — | Resolved |
| January 1, 2019 – December 31, 2019 | Monitoring, Regular | 1,2,4-Trichlorobenzene | — | Resolved |
| January 1, 2019 – December 31, 2019 | Monitoring, Regular | Styrene | — | Resolved |
| January 1, 2019 – December 31, 2019 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| January 1, 2019 – December 31, 2019 | Monitoring, Regular | Benzene | — | Resolved |
| January 1, 2019 – December 31, 2019 | Monitoring, Regular | Toluene | — | Resolved |
| January 1, 2019 – December 31, 2019 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| January 1, 2019 – December 31, 2019 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| January 1, 2019 – December 31, 2019 | Monitoring, Regular | Vinyl chloride | — | Resolved |
| January 1, 2019 – December 31, 2019 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| January 1, 2019 – December 31, 2019 | Monitoring, Regular | Trichloroethylene | — | Resolved |
| January 1, 2019 – December 31, 2019 | Monitoring, Regular | 1,2-Dichloropropane | — | Resolved |
| July 1, 2017 – September 30, 2017 | Monitoring, Regular | Benzene | — | Resolved |
| July 1, 2017 – September 30, 2017 | Monitoring, Regular | 1,2,4-Trichlorobenzene | — | Resolved |
| July 1, 2017 – September 30, 2017 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| July 1, 2017 – September 30, 2017 | Monitoring, Regular | Vinyl chloride | — | Resolved |
| July 1, 2017 – September 30, 2017 | Monitoring, Regular | 1,1-Dichloroethylene | — | Resolved |
| July 1, 2017 – September 30, 2017 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| July 1, 2017 – September 30, 2017 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| July 1, 2017 – September 30, 2017 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| July 1, 2017 – September 30, 2017 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| July 1, 2017 – September 30, 2017 | Monitoring, Regular | 1,2-Dichloropropane | — | Resolved |
| July 1, 2017 – September 30, 2017 | Monitoring, Regular | Trichloroethylene | — | Resolved |
| July 1, 2017 – September 30, 2017 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| July 1, 2017 – September 30, 2017 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| July 1, 2017 – September 30, 2017 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| July 1, 2017 – September 30, 2017 | Monitoring, Regular | Toluene | — | Resolved |
| July 1, 2017 – September 30, 2017 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| July 1, 2017 – September 30, 2017 | Monitoring, Regular | Styrene | — | Resolved |
| January 1, 2017 – March 31, 2017 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
| October 1, 2016 – December 31, 2016 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
| October 1, 2009 – December 31, 2009 | Monitoring, Regular | Toluene | — | Resolved |
| October 1, 2009 – December 31, 2009 | Monitoring, Regular | Benzene | — | Resolved |
| October 1, 2009 – December 31, 2009 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| October 1, 2009 – December 31, 2009 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| October 1, 2009 – December 31, 2009 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| October 1, 2009 – December 31, 2009 | Monitoring, Regular | 1,2-Dichloropropane | — | Resolved |
| October 1, 2009 – December 31, 2009 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| October 1, 2009 – December 31, 2009 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| October 1, 2009 – December 31, 2009 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| October 1, 2009 – December 31, 2009 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| October 1, 2009 – December 31, 2009 | Monitoring, Regular | 1,1-Dichloroethylene | — | Resolved |
| October 1, 2009 – December 31, 2009 | Monitoring, Regular | Vinyl chloride | — | Resolved |
| October 1, 2009 – December 31, 2009 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| October 1, 2009 – December 31, 2009 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| October 1, 2009 – December 31, 2009 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| October 1, 2009 – December 31, 2009 | Monitoring, Regular | Xylenes, Total | — | Resolved |
| October 1, 2009 – December 31, 2009 | Monitoring, Regular | cis-1,2-Dichloroethylene | — | Resolved |
| October 1, 2009 – December 31, 2009 | Monitoring, Regular | 1,2,4-Trichlorobenzene | — | Resolved |
| October 1, 2009 – December 31, 2009 | Monitoring, Regular | Styrene | — | Resolved |
| January 1, 2007 – December 31, 2007 | Monitoring, Regular | Nitrate-Nitrite | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- December 8, 2010Federal Compliance achieved1 linked violation
Common questions
Is MIAMI required to publish a Consumer Confidence Report?
- Yes. MIAMI is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is MIAMI’s next Consumer Confidence Report due?
- MIAMI’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does MIAMI have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for MIAMI.
What is a Consumer Confidence Report?
- A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.
Contact
MIAMI
918-542-9251
MIAMI, OK 74355