FAIRLAND, OK · Ottawa County
OTTAWA CO RWD # 4 Water System
Consumer Confidence Report status
OTTAWA CO RWD # 4 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 OTTAWA CO RWD # 4.
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)
- OK2005801
- System type
- Community Water System
- Population served
- 652
- Service connections
- 1,422
- Ownership
- local government
- Water source
- groundwater (wells)
OTTAWA CO RWD # 4 is one of 511 community water systems in Oklahoma in the 501 to 3,300 people size category, serving 652 people from groundwater.
As of August 1, 2026, its federal record holds 56 entries between 2014 and 2024, all of which EPA lists as closed.
All 56 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 Radionuclides and Revised Rad Rule, and synthetic organic chemicals.
Violation history
Monitoring, Regular
—Glyphosate
July 1, 2024 – September 30, 2024
ResolvedMonitoring, Regular
—Glyphosate
July 1, 2024 – September 30, 2024
ResolvedMonitoring, Regular
—Glyphosate
July 1, 2024 – September 30, 2024
ResolvedMonitoring, Regular
—Glyphosate
July 1, 2024 – September 30, 2024
ResolvedMonitoring, Regular
—Glyphosate
July 1, 2024 – September 30, 2024
ResolvedMonitoring and Reporting (DBP)
—Chlorine
October 1, 2020 – December 31, 2020
ResolvedMonitoring and Reporting (DBP)
—Chlorine
October 1, 2020 – December 31, 2020
ResolvedMonitoring and Reporting (DBP)
—Chlorine
October 1, 2020 – December 31, 2020
ResolvedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
January 1, 2018 – March 31, 2018
ResolvedMonitoring, Regular
—Gross Beta Particle Activity
January 1, 2018 – March 31, 2018
ResolvedMonitoring, Regular
—Combined Radium (-226 and -228)
January 1, 2018 – March 31, 2018
ResolvedMonitoring, Regular
—Combined Uranium
January 1, 2018 – March 31, 2018
ResolvedMonitoring, Regular
—Arsenic
January 1, 2018 – March 31, 2018
ResolvedMonitoring, Regular
—1,2-Dichloropropane
October 1, 2017 – December 31, 2017
ResolvedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
October 1, 2017 – December 31, 2017
ResolvedMonitoring, Regular
—1,2,4-Trichlorobenzene
October 1, 2017 – December 31, 2017
ResolvedMonitoring, Regular
—cis-1,2-Dichloroethylene
October 1, 2017 – December 31, 2017
ResolvedMonitoring, Regular
—Xylenes, Total
October 1, 2017 – December 31, 2017
ResolvedMonitoring, Regular
—o-Dichlorobenzene
October 1, 2017 – December 31, 2017
ResolvedMonitoring, Regular
—p-Dichlorobenzene
October 1, 2017 – December 31, 2017
ResolvedMonitoring, Regular
—Vinyl chloride
October 1, 2017 – December 31, 2017
ResolvedMonitoring, Regular
—1,1-Dichloroethylene
October 1, 2017 – December 31, 2017
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
October 1, 2017 – December 31, 2017
ResolvedMonitoring, Regular
—1,2-Dichloroethane
October 1, 2017 – December 31, 2017
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
October 1, 2017 – December 31, 2017
ResolvedMonitoring, Regular
—Carbon tetrachloride
October 1, 2017 – December 31, 2017
ResolvedMonitoring, Regular
—Trichloroethylene
October 1, 2017 – December 31, 2017
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
October 1, 2017 – December 31, 2017
ResolvedMonitoring, Regular
—Tetrachloroethylene
October 1, 2017 – December 31, 2017
ResolvedMonitoring, Regular
—CHLOROBENZENE
October 1, 2017 – December 31, 2017
ResolvedMonitoring, Regular
—Toluene
October 1, 2017 – December 31, 2017
ResolvedMonitoring, Regular
—Ethylbenzene
October 1, 2017 – December 31, 2017
ResolvedMonitoring, Regular
—Styrene
October 1, 2017 – December 31, 2017
ResolvedMonitoring, Regular
—cis-1,2-Dichloroethylene
July 1, 2017 – September 30, 2017
ResolvedMonitoring, Regular
—Gross Beta Particle Activity
July 1, 2017 – September 30, 2017
ResolvedMonitoring, Regular
—Combined Uranium
July 1, 2017 – September 30, 2017
ResolvedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
July 1, 2017 – September 30, 2017
ResolvedMonitoring, Regular
—p-Dichlorobenzene
July 1, 2017 – September 30, 2017
ResolvedMonitoring, Regular
—o-Dichlorobenzene
July 1, 2017 – September 30, 2017
ResolvedMonitoring, Regular
—DICHLOROMETHANE
July 1, 2017 – September 30, 2017
ResolvedMonitoring, Regular
—1,2,4-Trichlorobenzene
July 1, 2017 – September 30, 2017
ResolvedMonitoring, Regular
—Combined Radium (-226 and -228)
July 1, 2017 – September 30, 2017
ResolvedMonitoring, Regular
—Vinyl chloride
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
—Carbon tetrachloride
July 1, 2017 – September 30, 2017
ResolvedMonitoring, Regular
—1,2-Dichloropropane
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
—Styrene
July 1, 2017 – September 30, 2017
ResolvedMonitoring, Regular
—Nitrate-Nitrite
January 1, 2017 – December 31, 2017
ResolvedMonitoring, Source Water (GWR)
—E. COLI
September 17, 2015 – March 21, 2018
ResolvedMonitoring, Regular
—Combined Uranium
January 1, 2014 – December 31, 2016
ResolvedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
January 1, 2014 – December 31, 2016
ResolvedMonitoring, Regular
—Gross Beta Particle Activity
January 1, 2014 – December 31, 2016
ResolvedMonitoring, Regular
—Combined Radium (-226 and -228)
January 1, 2014 – December 31, 2016
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | Glyphosate | — | Resolved |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | Glyphosate | — | Resolved |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | Glyphosate | — | Resolved |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | Glyphosate | — | Resolved |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | Glyphosate | — | Resolved |
| October 1, 2020 – December 31, 2020 | Monitoring and Reporting (DBP) | Chlorine | — | Resolved |
| October 1, 2020 – December 31, 2020 | Monitoring and Reporting (DBP) | Chlorine | — | Resolved |
| October 1, 2020 – December 31, 2020 | Monitoring and Reporting (DBP) | Chlorine | — | Resolved |
| January 1, 2018 – March 31, 2018 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Resolved |
| January 1, 2018 – March 31, 2018 | Monitoring, Regular | Gross Beta Particle Activity | — | Resolved |
| January 1, 2018 – March 31, 2018 | Monitoring, Regular | Combined Radium (-226 and -228) | — | Resolved |
| January 1, 2018 – March 31, 2018 | Monitoring, Regular | Combined Uranium | — | Resolved |
| January 1, 2018 – March 31, 2018 | Monitoring, Regular | Arsenic | — | Resolved |
| October 1, 2017 – December 31, 2017 | Monitoring, Regular | 1,2-Dichloropropane | — | Resolved |
| October 1, 2017 – December 31, 2017 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Resolved |
| October 1, 2017 – December 31, 2017 | Monitoring, Regular | 1,2,4-Trichlorobenzene | — | Resolved |
| October 1, 2017 – December 31, 2017 | Monitoring, Regular | cis-1,2-Dichloroethylene | — | Resolved |
| October 1, 2017 – December 31, 2017 | Monitoring, Regular | Xylenes, Total | — | Resolved |
| October 1, 2017 – December 31, 2017 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| October 1, 2017 – December 31, 2017 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| October 1, 2017 – December 31, 2017 | Monitoring, Regular | Vinyl chloride | — | Resolved |
| October 1, 2017 – December 31, 2017 | Monitoring, Regular | 1,1-Dichloroethylene | — | Resolved |
| October 1, 2017 – December 31, 2017 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| October 1, 2017 – December 31, 2017 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| October 1, 2017 – December 31, 2017 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| October 1, 2017 – December 31, 2017 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| October 1, 2017 – December 31, 2017 | Monitoring, Regular | Trichloroethylene | — | Resolved |
| October 1, 2017 – December 31, 2017 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| October 1, 2017 – December 31, 2017 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| October 1, 2017 – December 31, 2017 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| October 1, 2017 – December 31, 2017 | Monitoring, Regular | Toluene | — | Resolved |
| October 1, 2017 – December 31, 2017 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| October 1, 2017 – December 31, 2017 | Monitoring, Regular | Styrene | — | Resolved |
| July 1, 2017 – September 30, 2017 | Monitoring, Regular | cis-1,2-Dichloroethylene | — | Resolved |
| July 1, 2017 – September 30, 2017 | Monitoring, Regular | Gross Beta Particle Activity | — | Resolved |
| July 1, 2017 – September 30, 2017 | Monitoring, Regular | Combined Uranium | — | Resolved |
| July 1, 2017 – September 30, 2017 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Resolved |
| July 1, 2017 – September 30, 2017 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| July 1, 2017 – September 30, 2017 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| July 1, 2017 – September 30, 2017 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| July 1, 2017 – September 30, 2017 | Monitoring, Regular | 1,2,4-Trichlorobenzene | — | Resolved |
| July 1, 2017 – September 30, 2017 | Monitoring, Regular | Combined Radium (-226 and -228) | — | Resolved |
| July 1, 2017 – September 30, 2017 | Monitoring, Regular | Vinyl chloride | — | 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 | Carbon tetrachloride | — | Resolved |
| July 1, 2017 – September 30, 2017 | Monitoring, Regular | 1,2-Dichloropropane | — | 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 | Styrene | — | Resolved |
| January 1, 2017 – December 31, 2017 | Monitoring, Regular | Nitrate-Nitrite | — | Resolved |
| September 17, 2015 – March 21, 2018 | Monitoring, Source Water (GWR) | E. COLI | — | Resolved |
| January 1, 2014 – December 31, 2016 | Monitoring, Regular | Combined Uranium | — | Resolved |
| January 1, 2014 – December 31, 2016 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Resolved |
| January 1, 2014 – December 31, 2016 | Monitoring, Regular | Gross Beta Particle Activity | — | Resolved |
| January 1, 2014 – December 31, 2016 | Monitoring, Regular | Combined Radium (-226 and -228) | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- February 19, 2026State Violation/Reminder Notice37 linked violations
- June 26, 2025State Compliance achieved8 linked violations
- October 26, 2018State Public Notification received32 linked violations
- June 14, 2018State Violation/Reminder Notice10 linked violations
- June 14, 2018State Public Notification requested31 linked violations
- March 21, 2018State Compliance achieved10 linked violations
- February 13, 2018State Public Notification requested50 linked violations
- February 13, 2018State Violation/Reminder Notice17 linked violations
- February 13, 2018State Violation/Reminder Notice39 linked violations
- November 13, 2017State Violation/Reminder Notice32 linked violations
- November 13, 2017State Public Notification requested30 linked violations
- November 2, 2017State Compliance achieved39 linked violations
- March 18, 2016State Violation/Reminder Notice24 linked violations
- September 8, 1995State Compliance achieved3 linked violations
Common questions
Is OTTAWA CO RWD # 4 required to publish a Consumer Confidence Report?
- Yes. OTTAWA CO RWD # 4 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 OTTAWA CO RWD # 4’s next Consumer Confidence Report due?
- OTTAWA CO RWD # 4’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does OTTAWA CO RWD # 4 have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for OTTAWA CO RWD # 4.
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
OTTAWA CO RWD # 4
918-540-1893
FAIRLAND, OK 74343