CALUMET, OK · Canadian County
CALUMET Water System
Consumer Confidence Report status
CALUMET 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 1 item for CALUMET that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
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)
- OK2000904
- System type
- Community Water System
- Population served
- 600
- Service connections
- 366
- Ownership
- local government
- Water source
- groundwater (wells)
CALUMET is one of 511 community water systems in Oklahoma in the 501 to 3,300 people size category, serving 600 people from groundwater.
As of August 1, 2026, its federal record holds 35 entries between 2003 and 2025, of which 1 remains open; none are health-based.
Of the 35, 33 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 synthetic organic chemicals, the Radionuclides and Revised Rad Rule, and inorganic chemicals.
Violation history
Maximum Contaminant Level Violation, Single Sample
Health-basedNitrate-Nitrite
October 1, 2025 – December 31, 2025
ArchivedMaximum Contaminant Level Violation, Single Sample
Health-basedNitrate-Nitrite
July 1, 2025 – September 30, 2025
ArchivedLSL Reporting
—LEAD AND COPPER RULE REVISIONS
October 17, 2024
AddressedMonitoring, Regular
—LASSO
October 1, 2024 – December 31, 2024
ResolvedMonitoring, Regular
—Heptachlor epoxide
October 1, 2024 – December 31, 2024
ResolvedMonitoring, Regular
—2,4-D
October 1, 2024 – December 31, 2024
ResolvedMonitoring, Regular
—Benzo(a)pyrene
October 1, 2024 – December 31, 2024
ResolvedMonitoring, Regular
—Pentachlorophenol
October 1, 2024 – December 31, 2024
ResolvedMonitoring, Regular
—Total Polychlorinated Biphenyls (PCB)
October 1, 2024 – December 31, 2024
ResolvedMonitoring, Regular
—1,2-DIBROMO-3-CHLOROPROPANE
October 1, 2024 – December 31, 2024
ResolvedMonitoring, Regular
—Chlordane
October 1, 2024 – December 31, 2024
ResolvedMonitoring, Regular
—BHC-GAMMA
October 1, 2024 – December 31, 2024
ResolvedMonitoring, Regular
—Diquat
October 1, 2024 – December 31, 2024
ResolvedMonitoring, Regular
—Endothall
October 1, 2024 – December 31, 2024
ResolvedMonitoring, Regular
—Glyphosate
October 1, 2024 – December 31, 2024
ResolvedMonitoring, Regular
—Picloram
October 1, 2024 – December 31, 2024
ResolvedMonitoring, Regular
—Dinoseb
October 1, 2024 – December 31, 2024
ResolvedMonitoring, Regular
—Atrazine
October 1, 2024 – December 31, 2024
ResolvedMonitoring, Regular
—Carbofuran
October 1, 2024 – December 31, 2024
ResolvedMonitoring, Regular
—Endrin
July 1, 2024 – September 30, 2024
ResolvedMonitoring, Regular
—Diquat
July 1, 2024 – September 30, 2024
ResolvedMonitoring, Regular
—Simazine
July 1, 2024 – September 30, 2024
ResolvedMonitoring, Regular
—Picloram
July 1, 2024 – September 30, 2024
ResolvedMonitoring, Regular
—Dinoseb
July 1, 2024 – September 30, 2024
ResolvedMonitoring, Regular
—Carbofuran
July 1, 2024 – September 30, 2024
ResolvedMonitoring, Regular
—LASSO
July 1, 2024 – September 30, 2024
ResolvedMonitoring, Regular
—Heptachlor
July 1, 2024 – September 30, 2024
ResolvedMonitoring, Regular
—Pentachlorophenol
July 1, 2024 – September 30, 2024
ResolvedMonitoring, Regular
—Chlordane
July 1, 2024 – September 30, 2024
ResolvedMonitoring, Regular
—Dalapon
July 1, 2024 – September 30, 2024
ResolvedMonitoring, Regular
—Combined Radium (-226 and -228)
January 1, 2023 – December 31, 2025
ArchivedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
January 1, 2023 – December 31, 2025
ArchivedMonitoring, Regular
—Gross Beta Particle Activity
January 1, 2023 – December 31, 2025
ArchivedMonitoring, Source Water (GWR)
—E. COLI
November 24, 2015 – June 18, 2019
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
December 1, 2003 – December 31, 2003
Resolved
Archived closed in EPA's records (typically due to age or a data correction)Addressed corrective action reported, pending final confirmationResolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| October 1, 2025 – December 31, 2025 | Maximum Contaminant Level Violation, Single Sample | Nitrate-Nitrite | Health-based | Archived |
| July 1, 2025 – September 30, 2025 | Maximum Contaminant Level Violation, Single Sample | Nitrate-Nitrite | Health-based | Archived |
| October 17, 2024 | LSL Reporting | LEAD AND COPPER RULE REVISIONS | — | Addressed |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | LASSO | — | Resolved |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | Heptachlor epoxide | — | Resolved |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | 2,4-D | — | Resolved |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | Benzo(a)pyrene | — | Resolved |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | Pentachlorophenol | — | Resolved |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | Total Polychlorinated Biphenyls (PCB) | — | Resolved |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | 1,2-DIBROMO-3-CHLOROPROPANE | — | Resolved |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | Chlordane | — | Resolved |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | BHC-GAMMA | — | Resolved |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | Diquat | — | Resolved |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | Endothall | — | Resolved |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | Glyphosate | — | Resolved |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | Picloram | — | Resolved |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | Dinoseb | — | Resolved |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | Atrazine | — | Resolved |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | Carbofuran | — | Resolved |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | Endrin | — | Resolved |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | Diquat | — | Resolved |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | Simazine | — | Resolved |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | Picloram | — | Resolved |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | Dinoseb | — | Resolved |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | Carbofuran | — | Resolved |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | LASSO | — | Resolved |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | Heptachlor | — | Resolved |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | Pentachlorophenol | — | Resolved |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | Chlordane | — | Resolved |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | Dalapon | — | Resolved |
| January 1, 2023 – December 31, 2025 | Monitoring, Regular | Combined Radium (-226 and -228) | — | Archived |
| January 1, 2023 – December 31, 2025 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Archived |
| January 1, 2023 – December 31, 2025 | Monitoring, Regular | Gross Beta Particle Activity | — | Archived |
| November 24, 2015 – June 18, 2019 | Monitoring, Source Water (GWR) | E. COLI | — | Resolved |
| December 1, 2003 – December 31, 2003 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
Archived closed in EPA's records (typically due to age or a data correction)Addressed corrective action reported, pending final confirmationResolved addressed and confirmed by the state
Enforcement actions
- February 19, 2026State Violation/Reminder Notice12 linked violations
- November 26, 2025State Public Notification requested9 linked violations
- July 16, 2025State Public Notification requested9 linked violations
- July 11, 2025State Public Notification received10 linked violations
- July 11, 2025State Violation/Reminder Notice9 linked violations
- June 30, 2025State Public Notification received36 linked violations
- June 30, 2025State Public Notification received29 linked violations
- April 10, 2025State Compliance achieved37 linked violations
- March 6, 2025State Public Notification requested46 linked violations
- March 6, 2025State Violation/Reminder Notice31 linked violations
- August 4, 2016State Compliance achieved12 linked violations
- August 4, 2016State Compliance achieved8 linked violations
- August 4, 2016State Compliance achieved1 linked violation
- August 4, 2016State Compliance achieved1 linked violation
- August 4, 2016State Compliance achieved9 linked violations
- August 4, 2016State Compliance achieved9 linked violations
- March 18, 2016State Public Notification requested1 linked violation
- December 10, 2013State Public Notification received1 linked violation
- November 9, 2001State Administrative/Compliance Order with penalty issued3 linked violations
- January 1, 1998State Compliance achieved1 linked violation
- August 26, 1997State Administrative/Compliance Order without penalty issued1 linked violation
- December 7, 1993State Compliance achieved1 linked violation
- May 10, 1991State Compliance achievedgeneral compliance action — not tied to a specific violation on record
- May 6, 1991State Boil Water Ordergeneral compliance action — not tied to a specific violation on record
Common questions
Is CALUMET required to publish a Consumer Confidence Report?
- Yes. CALUMET 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 CALUMET’s next Consumer Confidence Report due?
- CALUMET’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does CALUMET have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show 1 item for CALUMET that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
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
CALUMET
405-893-2323
CALUMET, OK 73014-0190