WILLOW, OK · Greer County
WILLOW Water System
Consumer Confidence Report status
WILLOW 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 WILLOW 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)
- OK2002801
- System type
- Community Water System
- Population served
- 114
- Service connections
- 75
- Ownership
- local government
- Water source
- groundwater (wells)
WILLOW is one of 1,277 community water systems in Oklahoma in the 500 or fewer people size category, serving 114 people from groundwater.
As of August 1, 2026, its federal record holds 106 entries between 1993 and 2025, of which 1 remains open; none are health-based.
Of the 106, 99 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, inorganic chemicals, and the Total Coliform Rules.
Violation history
Monitoring, Regular
—Nitrate-Nitrite
April 1, 2025 – June 30, 2025
ResolvedMonitoring, Regular
—ETHYLENE DIBROMIDE
April 1, 2025 – June 30, 2025
ResolvedMonitoring, Regular
—Pentachlorophenol
April 1, 2025 – June 30, 2025
ResolvedMonitoring, Regular
—Benzo(a)pyrene
April 1, 2025 – June 30, 2025
ResolvedMonitoring, Regular
—HEXACHLOROBENZENE
April 1, 2025 – June 30, 2025
ResolvedMonitoring, Regular
—Heptachlor epoxide
April 1, 2025 – June 30, 2025
ResolvedMonitoring, Regular
—Carbofuran
April 1, 2025 – June 30, 2025
ResolvedMonitoring, Regular
—Dinoseb
April 1, 2025 – June 30, 2025
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) phthalate
April 1, 2025 – June 30, 2025
ResolvedMonitoring, Regular
—Simazine
April 1, 2025 – June 30, 2025
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) adipate
April 1, 2025 – June 30, 2025
ResolvedMonitoring, Regular
—Endothall
April 1, 2025 – June 30, 2025
ResolvedMonitoring, Regular
—Diquat
April 1, 2025 – June 30, 2025
ResolvedMonitoring, Regular
—Dalapon
April 1, 2025 – June 30, 2025
ResolvedMonitoring, Regular
—Toxaphene
April 1, 2025 – June 30, 2025
ResolvedLSL Reporting
—LEAD AND COPPER RULE REVISIONS
October 17, 2024
AddressedMonitoring, Regular
—Carbofuran
October 1, 2024 – December 31, 2024
ResolvedMonitoring, Regular
—BHC-GAMMA
October 1, 2024 – December 31, 2024
ArchivedMonitoring, Regular
—OXAMYL
October 1, 2024 – December 31, 2024
ArchivedMonitoring, Regular
—Dinoseb
October 1, 2024 – December 31, 2024
ArchivedMonitoring, Regular
—Hexachlorocyclopentadiene
October 1, 2024 – December 31, 2024
ArchivedMonitoring, Regular
—Carbofuran
October 1, 2024 – December 31, 2024
ArchivedMonitoring, Regular
—Atrazine
October 1, 2024 – December 31, 2024
ArchivedMonitoring, Regular
—Heptachlor
October 1, 2024 – December 31, 2024
ArchivedMonitoring, Regular
—Benzo(a)pyrene
October 1, 2024 – December 31, 2024
ArchivedMonitoring, Regular
—Pentachlorophenol
October 1, 2024 – December 31, 2024
ArchivedMonitoring, Regular
—Total Polychlorinated Biphenyls (PCB)
October 1, 2024 – December 31, 2024
ArchivedMonitoring, Regular
—1,2-DIBROMO-3-CHLOROPROPANE
October 1, 2024 – December 31, 2024
ArchivedMonitoring, Regular
—ETHYLENE DIBROMIDE
October 1, 2024 – December 31, 2024
ArchivedMonitoring, Regular
—Chlordane
October 1, 2024 – December 31, 2024
ArchivedMonitoring, Regular
—Endrin
October 1, 2024 – December 31, 2024
ArchivedMonitoring, Regular
—BHC-GAMMA
October 1, 2024 – December 31, 2024
ArchivedMonitoring, Regular
—Methoxychlor
October 1, 2024 – December 31, 2024
ArchivedMonitoring, Regular
—Toxaphene
October 1, 2024 – December 31, 2024
ArchivedMonitoring, Regular
—Diquat
October 1, 2024 – December 31, 2024
ArchivedMonitoring, Regular
—Glyphosate
October 1, 2024 – December 31, 2024
ArchivedMonitoring, Regular
—OXAMYL
October 1, 2024 – December 31, 2024
ArchivedMonitoring, Regular
—Di(2-ethylhexyl) phthalate
October 1, 2024 – December 31, 2024
ArchivedMonitoring, Regular
—Hexachlorocyclopentadiene
October 1, 2024 – December 31, 2024
ArchivedMonitoring, Regular
—Carbofuran
October 1, 2024 – December 31, 2024
ArchivedMonitoring, Regular
—LASSO
October 1, 2024 – December 31, 2024
ArchivedMonitoring, Regular
—Heptachlor
October 1, 2024 – December 31, 2024
ArchivedMonitoring, Regular
—Benzo(a)pyrene
October 1, 2024 – December 31, 2024
ArchivedMonitoring, Regular
—Pentachlorophenol
October 1, 2024 – December 31, 2024
ArchivedMonitoring, Regular
—1,2-DIBROMO-3-CHLOROPROPANE
October 1, 2024 – December 31, 2024
ArchivedMonitoring, Regular
—ETHYLENE DIBROMIDE
October 1, 2024 – December 31, 2024
ArchivedMonitoring, Regular
—Chlordane
October 1, 2024 – December 31, 2024
ArchivedMonitoring, Regular
—BHC-GAMMA
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
—Di(2-ethylhexyl) adipate
October 1, 2024 – December 31, 2024
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) phthalate
October 1, 2024 – December 31, 2024
ResolvedMonitoring, Regular
—Dinoseb
October 1, 2024 – December 31, 2024
ResolvedMonitoring, Regular
—Hexachlorocyclopentadiene
October 1, 2024 – December 31, 2024
ResolvedMonitoring, Regular
—Atrazine
October 1, 2024 – December 31, 2024
ResolvedMonitoring, Regular
—LASSO
October 1, 2024 – December 31, 2024
ResolvedMonitoring, Regular
—Heptachlor
October 1, 2024 – December 31, 2024
ResolvedMonitoring, Regular
—Dinoseb
July 1, 2024 – September 30, 2024
ArchivedMonitoring, Regular
—2,4-D
July 1, 2024 – September 30, 2024
ArchivedMonitoring, Regular
—Endrin
July 1, 2024 – September 30, 2024
ResolvedMonitoring, Regular
—Nitrate-Nitrite
July 1, 2024 – September 30, 2024
ResolvedMonitoring, Regular
—Methoxychlor
July 1, 2024 – September 30, 2024
ArchivedMonitoring, Regular
—Glyphosate
July 1, 2024 – September 30, 2024
ArchivedMonitoring, Regular
—Picloram
July 1, 2024 – September 30, 2024
ArchivedMonitoring, Regular
—Hexachlorocyclopentadiene
July 1, 2024 – September 30, 2024
ArchivedMonitoring, Regular
—Chlordane
July 1, 2024 – September 30, 2024
ArchivedMonitoring, Regular
—Toxaphene
July 1, 2024 – September 30, 2024
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) adipate
July 1, 2024 – September 30, 2024
ResolvedMonitoring, Regular
—Dinoseb
July 1, 2024 – September 30, 2024
ResolvedMonitoring, Regular
—Hexachlorocyclopentadiene
July 1, 2024 – September 30, 2024
ResolvedMonitoring, Regular
—Heptachlor
July 1, 2024 – September 30, 2024
ResolvedMonitoring, Regular
—Heptachlor epoxide
July 1, 2024 – September 30, 2024
ResolvedMonitoring, Regular
—2,4,5-TP
July 1, 2024 – September 30, 2024
ResolvedMonitoring, Regular
—HEXACHLOROBENZENE
July 1, 2024 – September 30, 2024
ResolvedMonitoring, Regular
—Total Polychlorinated Biphenyls (PCB)
July 1, 2024 – September 30, 2024
ResolvedMonitoring, Regular
—ETHYLENE DIBROMIDE
July 1, 2024 – September 30, 2024
ResolvedMonitoring, Regular
—Diquat
July 1, 2024 – September 30, 2024
ArchivedMonitoring, Regular
—OXAMYL
July 1, 2024 – September 30, 2024
ArchivedMonitoring, Regular
—Simazine
July 1, 2024 – September 30, 2024
ArchivedMonitoring, Regular
—2,4,5-TP
July 1, 2024 – September 30, 2024
ArchivedMonitoring, Regular
—Benzo(a)pyrene
July 1, 2024 – September 30, 2024
ArchivedMonitoring, Regular
—Chlordane
July 1, 2024 – September 30, 2024
ArchivedMonitoring, Regular
—Endrin
July 1, 2024 – September 30, 2024
ArchivedMonitoring, Regular
—BHC-GAMMA
July 1, 2024 – September 30, 2024
ArchivedMonitoring and Reporting (DBP)
—Chlorine
October 1, 2023 – December 31, 2023
ResolvedMonitoring, Regular
—Selenium
January 1, 2023 – December 31, 2025
ArchivedMonitoring, Regular
—Antimony, Total
January 1, 2023 – December 31, 2025
ArchivedMonitoring, Regular
—Mercury
January 1, 2023 – December 31, 2025
ArchivedMonitoring, Regular
—Nitrate-Nitrite
January 1, 2022 – March 31, 2022
ResolvedMonitoring, Regular
—Nitrate-Nitrite
January 1, 2022 – March 31, 2022
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2017 – November 20, 2017
ResolvedMonitoring, Regular
—Nitrate-Nitrite
January 1, 2016 – December 31, 2016
ResolvedMonitoring, Regular
—Nitrate-Nitrite
January 1, 2016 – December 31, 2016
ResolvedMaximum Contaminant Level Violation, Single Sample
Health-basedNitrate-Nitrite
October 1, 2015 – December 31, 2015
ResolvedMaximum Contaminant Level Violation, Single Sample
Health-basedNitrate-Nitrite
January 1, 2015 – December 31, 2015
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2014 – February 24, 2016
ResolvedMonitoring, Regular
—Combined Radium (-226 and -228)
January 1, 2014 – December 31, 2016
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
August 1, 2013 – August 31, 2013
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
July 1, 2010 – July 31, 2010
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
May 1, 2010 – May 31, 2010
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
April 1, 2010 – April 30, 2010
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
August 1, 2009 – August 31, 2009
ResolvedMonitoring, Regular
—Nitrate-Nitrite
January 1, 2006 – December 31, 2006
ResolvedMaximum Contaminant Level Violation, Average
Health-basedNitrate
October 1, 1995 – December 31, 1995
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
May 1, 1994 – May 31, 1994
ResolvedMaximum Contaminant Level Violation, Average
Health-basedNitrate
August 16, 1993 – November 15, 1993
Resolved
Resolved addressed and confirmed by the stateAddressed corrective action reported, pending final confirmationArchived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| April 1, 2025 – June 30, 2025 | Monitoring, Regular | Nitrate-Nitrite | — | Resolved |
| April 1, 2025 – June 30, 2025 | Monitoring, Regular | ETHYLENE DIBROMIDE | — | Resolved |
| April 1, 2025 – June 30, 2025 | Monitoring, Regular | Pentachlorophenol | — | Resolved |
| April 1, 2025 – June 30, 2025 | Monitoring, Regular | Benzo(a)pyrene | — | Resolved |
| April 1, 2025 – June 30, 2025 | Monitoring, Regular | HEXACHLOROBENZENE | — | Resolved |
| April 1, 2025 – June 30, 2025 | Monitoring, Regular | Heptachlor epoxide | — | Resolved |
| April 1, 2025 – June 30, 2025 | Monitoring, Regular | Carbofuran | — | Resolved |
| April 1, 2025 – June 30, 2025 | Monitoring, Regular | Dinoseb | — | Resolved |
| April 1, 2025 – June 30, 2025 | Monitoring, Regular | Di(2-ethylhexyl) phthalate | — | Resolved |
| April 1, 2025 – June 30, 2025 | Monitoring, Regular | Simazine | — | Resolved |
| April 1, 2025 – June 30, 2025 | Monitoring, Regular | Di(2-ethylhexyl) adipate | — | Resolved |
| April 1, 2025 – June 30, 2025 | Monitoring, Regular | Endothall | — | Resolved |
| April 1, 2025 – June 30, 2025 | Monitoring, Regular | Diquat | — | Resolved |
| April 1, 2025 – June 30, 2025 | Monitoring, Regular | Dalapon | — | Resolved |
| April 1, 2025 – June 30, 2025 | Monitoring, Regular | Toxaphene | — | Resolved |
| October 17, 2024 | LSL Reporting | LEAD AND COPPER RULE REVISIONS | — | Addressed |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | Carbofuran | — | Resolved |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | BHC-GAMMA | — | Archived |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | OXAMYL | — | Archived |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | Dinoseb | — | Archived |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | Hexachlorocyclopentadiene | — | Archived |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | Carbofuran | — | Archived |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | Atrazine | — | Archived |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | Heptachlor | — | Archived |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | Benzo(a)pyrene | — | Archived |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | Pentachlorophenol | — | Archived |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | Total Polychlorinated Biphenyls (PCB) | — | Archived |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | 1,2-DIBROMO-3-CHLOROPROPANE | — | Archived |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | ETHYLENE DIBROMIDE | — | Archived |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | Chlordane | — | Archived |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | Endrin | — | Archived |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | BHC-GAMMA | — | Archived |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | Methoxychlor | — | Archived |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | Toxaphene | — | Archived |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | Diquat | — | Archived |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | Glyphosate | — | Archived |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | OXAMYL | — | Archived |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | Di(2-ethylhexyl) phthalate | — | Archived |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | Hexachlorocyclopentadiene | — | Archived |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | Carbofuran | — | Archived |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | LASSO | — | Archived |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | Heptachlor | — | Archived |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | Benzo(a)pyrene | — | Archived |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | Pentachlorophenol | — | Archived |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | 1,2-DIBROMO-3-CHLOROPROPANE | — | Archived |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | ETHYLENE DIBROMIDE | — | Archived |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | Chlordane | — | Archived |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | BHC-GAMMA | — | 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 | Di(2-ethylhexyl) adipate | — | Resolved |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | Di(2-ethylhexyl) phthalate | — | Resolved |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | Dinoseb | — | Resolved |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | Hexachlorocyclopentadiene | — | Resolved |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | Atrazine | — | Resolved |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | LASSO | — | Resolved |
| October 1, 2024 – December 31, 2024 | Monitoring, Regular | Heptachlor | — | Resolved |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | Dinoseb | — | Archived |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | 2,4-D | — | Archived |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | Endrin | — | Resolved |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | Nitrate-Nitrite | — | Resolved |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | Methoxychlor | — | Archived |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | Glyphosate | — | Archived |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | Picloram | — | Archived |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | Hexachlorocyclopentadiene | — | Archived |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | Chlordane | — | Archived |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | Toxaphene | — | Resolved |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | Di(2-ethylhexyl) adipate | — | Resolved |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | Dinoseb | — | Resolved |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | Hexachlorocyclopentadiene | — | Resolved |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | Heptachlor | — | Resolved |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | Heptachlor epoxide | — | Resolved |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | 2,4,5-TP | — | Resolved |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | HEXACHLOROBENZENE | — | Resolved |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | Total Polychlorinated Biphenyls (PCB) | — | Resolved |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | ETHYLENE DIBROMIDE | — | Resolved |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | Diquat | — | Archived |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | OXAMYL | — | Archived |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | Simazine | — | Archived |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | 2,4,5-TP | — | Archived |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | Benzo(a)pyrene | — | Archived |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | Chlordane | — | Archived |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | Endrin | — | Archived |
| July 1, 2024 – September 30, 2024 | Monitoring, Regular | BHC-GAMMA | — | Archived |
| October 1, 2023 – December 31, 2023 | Monitoring and Reporting (DBP) | Chlorine | — | Resolved |
| January 1, 2023 – December 31, 2025 | Monitoring, Regular | Selenium | — | Archived |
| January 1, 2023 – December 31, 2025 | Monitoring, Regular | Antimony, Total | — | Archived |
| January 1, 2023 – December 31, 2025 | Monitoring, Regular | Mercury | — | Archived |
| January 1, 2022 – March 31, 2022 | Monitoring, Regular | Nitrate-Nitrite | — | Resolved |
| January 1, 2022 – March 31, 2022 | Monitoring, Regular | Nitrate-Nitrite | — | Resolved |
| July 1, 2017 – November 20, 2017 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| January 1, 2016 – December 31, 2016 | Monitoring, Regular | Nitrate-Nitrite | — | Resolved |
| January 1, 2016 – December 31, 2016 | Monitoring, Regular | Nitrate-Nitrite | — | Resolved |
| October 1, 2015 – December 31, 2015 | Maximum Contaminant Level Violation, Single Sample | Nitrate-Nitrite | Health-based | Resolved |
| January 1, 2015 – December 31, 2015 | Maximum Contaminant Level Violation, Single Sample | Nitrate-Nitrite | Health-based | Resolved |
| July 1, 2014 – February 24, 2016 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| January 1, 2014 – December 31, 2016 | Monitoring, Regular | Combined Radium (-226 and -228) | — | Resolved |
| August 1, 2013 – August 31, 2013 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| July 1, 2010 – July 31, 2010 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| May 1, 2010 – May 31, 2010 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| April 1, 2010 – April 30, 2010 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| August 1, 2009 – August 31, 2009 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| January 1, 2006 – December 31, 2006 | Monitoring, Regular | Nitrate-Nitrite | — | Resolved |
| October 1, 1995 – December 31, 1995 | Maximum Contaminant Level Violation, Average | Nitrate | Health-based | Resolved |
| May 1, 1994 – May 31, 1994 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| August 16, 1993 – November 15, 1993 | Maximum Contaminant Level Violation, Average | Nitrate | Health-based | Resolved |
Resolved addressed and confirmed by the stateAddressed corrective action reported, pending final confirmationArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- February 19, 2026State Public Notification requested11 linked violations
- February 19, 2026State Violation/Reminder Notice12 linked violations
- November 24, 2025State Compliance achieved29 linked violations
- October 8, 2025State Compliance achieved1 linked violation
- August 13, 2025State Violation/Reminder Notice30 linked violations
- August 13, 2025State Public Notification requested30 linked violations
- May 16, 2025State Compliance achieved29 linked violations
- May 16, 2025State Compliance achieved29 linked violations
- May 16, 2025State Compliance achieved1 linked violation
- May 15, 2025State Public Notification received90 linked violations
- May 15, 2025State Public Notification received87 linked violations
- April 9, 2025State Public Notification requested3 linked violations
- April 9, 2025State Public Notification requested3 linked violations
- April 9, 2025State Violation/Reminder Notice3 linked violations
- April 9, 2025State Violation/Reminder Notice3 linked violations
- March 6, 2025State Public Notification requested87 linked violations
- March 6, 2025State Violation/Reminder Notice87 linked violations
- January 29, 2025State Compliance achieved1 linked violation
- January 29, 2025State Compliance achieved1 linked violation
- December 23, 2024State Compliance achieved1 linked violation
- November 22, 2024State Public Notification requested90 linked violations
- November 22, 2024State Violation/Reminder Notice90 linked violations
- May 13, 2024State Public Notification received1 linked violation
- May 13, 2024State Public Notification received3 linked violations
- May 13, 2024State Public Notification received1 linked violation
- May 13, 2024State Public Notification received1 linked violation
- March 28, 2024State Compliance achieved1 linked violation
- March 28, 2024State Compliance achieved1 linked violation
- March 28, 2024State Compliance achieved1 linked violation
- February 28, 2024State Public Notification requested3 linked violations
- February 28, 2024State Violation/Reminder Notice3 linked violations
- January 12, 2024State Compliance achieved1 linked violation
- January 12, 2024State Compliance achieved1 linked violation
- December 15, 2023State Violation/Reminder Notice1 linked violation
- December 15, 2023State Public Notification requested1 linked violation
- December 15, 2023State Violation/Reminder Notice1 linked violation
- December 15, 2023State Public Notification requested1 linked violation
- October 16, 2023State Compliance achieved1 linked violation
- August 30, 2023State Public Notification requested1 linked violation
- August 30, 2023State Violation/Reminder Notice1 linked violation
- July 3, 2023State Public Notification received2 linked violations
- July 3, 2023State Public Notification received1 linked violation
- July 3, 2023State Public Notification received1 linked violation
- July 3, 2023State Public Notification received1 linked violation
- June 7, 2023State Compliance achieved1 linked violation
- June 7, 2023State Compliance achieved1 linked violation
- June 2, 2023State Compliance achieved1 linked violation
- April 4, 2023State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
- April 4, 2023State Public Notification requested1 linked violation
- April 4, 2023State Violation/Reminder Notice1 linked violation
- April 4, 2023State Public Notification requested1 linked violation
- April 4, 2023State Violation/Reminder Notice1 linked violation
- April 4, 2023State Public Notification received1 linked violation
- April 4, 2023State Public Notification received1 linked violation
- April 4, 2023State Public Notification received1 linked violation
- April 4, 2023State Public Notification received1 linked violation
- April 4, 2023State Public Notification received1 linked violation
- April 4, 2023State Public Notification received1 linked violation
- April 4, 2023State Public Notification received1 linked violation
- April 4, 2023State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
- April 4, 2023State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
- April 4, 2023State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
- April 4, 2023State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
- April 4, 2023State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
- April 4, 2023State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
- March 14, 2023State Public Notification requested1 linked violation
- March 14, 2023State Violation/Reminder Notice1 linked violation
- February 8, 2023State Compliance achieved1 linked violation
- August 2, 2022State Compliance achieved7 linked violations
- May 25, 2022State Public Notification requested2 linked violations
- May 25, 2022State Violation/Reminder Notice2 linked violations
- March 1, 2022State Public Notification requested2 linked violations
- March 1, 2022State Violation/Reminder Notice2 linked violations
- November 24, 2021State Compliance achieved1 linked violation
- November 18, 2021State Public Notification requested1 linked violation
- November 18, 2021State Violation/Reminder Notice1 linked violation
- November 18, 2021State Public Notification requested1 linked violation
- November 18, 2021State Violation/Reminder Notice1 linked violation
- November 18, 2021State Public Notification requested1 linked violation
- November 18, 2021State Violation/Reminder Notice1 linked violation
- November 18, 2021State Violation/Reminder Notice1 linked violation
- November 18, 2021State Public Notification requested1 linked violation
- November 18, 2021State Public Notification requested1 linked violation
- November 18, 2021State Violation/Reminder Notice1 linked violation
- June 14, 2018State Public Notification requested1 linked violation
- June 14, 2018State Violation/Reminder Notice1 linked violation
- April 23, 2018State Compliance achieved1 linked violation
- December 4, 2017State Compliance achieved1 linked violation
- December 4, 2017State Compliance achieved1 linked violation
- November 20, 2017State Compliance achieved1 linked violation
- November 17, 2017State Violation/Reminder Notice1 linked violation
- May 24, 2017State Compliance achieved4 linked violations
- May 10, 2017State Compliance achieved1 linked violation
- May 10, 2017State Compliance achieved1 linked violation
- April 20, 2017State Public Notification requested1 linked violation
- April 20, 2017State Violation/Reminder Notice1 linked violation
- April 20, 2017State Violation/Reminder Notice1 linked violation
- April 20, 2017State Public Notification requested1 linked violation
- April 20, 2017State Violation/Reminder Notice4 linked violations
- April 20, 2017State Public Notification requested4 linked violations
- 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
- 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
- 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
- February 24, 2016State Compliance achieved1 linked violation
- December 2, 2015State Public Notification received1 linked violation
- December 1, 2015State Public Notification requested1 linked violation
- December 1, 2015State Administrative/Compliance Order with penalty issued1 linked violation
- October 5, 2015State Public Notification received1 linked violation
- September 29, 2015State Public Notification requested1 linked violation
- September 29, 2015State Administrative/Compliance Order with penalty issued1 linked violation
- January 14, 2015State Violation/Reminder Notice1 linked violation
- November 27, 2013State Public Notification received1 linked violation
- August 31, 2013State Compliance achieved1 linked violation
- August 9, 2010State Violation/Reminder Notice1 linked violation
- August 9, 2010State Public Notification requested1 linked violation
- April 30, 2010State Compliance achieved1 linked violation
- April 8, 2010State Violation/Reminder Notice1 linked violation
- April 8, 2010State Public Notification requested1 linked violation
- April 8, 2010State Public Notification requested1 linked violation
- April 8, 2010State Violation/Reminder Notice1 linked violation
- February 11, 2010State Compliance achieved2 linked violations
- January 27, 2010State Public Notification requested1 linked violation
- January 27, 2010State Violation/Reminder Notice1 linked violation
- December 14, 2009State Violation/Reminder Notice1 linked violation
- December 14, 2009State Public Notification requested1 linked violation
- December 14, 2009State Violation/Reminder Notice1 linked violation
- December 14, 2009State Public Notification requested1 linked violation
- December 14, 2009State Public Notification requested1 linked violation
- December 14, 2009State Violation/Reminder Notice1 linked violation
- November 23, 2009State Public Notification requested1 linked violation
- November 23, 2009State Violation/Reminder Notice1 linked violation
- April 27, 2009State Public Notification requested1 linked violation
- April 27, 2009State Violation/Reminder Notice1 linked violation
- April 7, 2009State Compliance achieved1 linked violation
- October 18, 2007State Compliance achieved3 linked violations
- October 2, 2007State Public Notification received2 linked violations
- July 27, 2007State Administrative/Compliance Order with penalty issued2 linked violations
- July 27, 2007State Public Notification requested2 linked violations
- June 27, 2007State Public Notification received2 linked violations
- June 22, 2007State Compliance achieved1 linked violation
- March 15, 2007State Violation/Reminder Notice1 linked violation
- March 15, 2007State Public Notification requested1 linked violation
- February 6, 2007State Violation/Reminder Notice1 linked violation
- February 6, 2007State Violation/Reminder Notice1 linked violation
- February 5, 2007State Public Notification requested1 linked violation
- February 5, 2007State Violation/Reminder Notice1 linked violation
- July 19, 2006State Public Notification received1 linked violation
- July 19, 2006State Public Notification received1 linked violation
- July 10, 2006State Public Notification requested1 linked violation
- July 10, 2006State Boil Water Order1 linked violation
- July 10, 2006State Boil Water Order1 linked violation
- July 10, 2006State Public Notification requested1 linked violation
- June 5, 2006State Compliance achieved1 linked violation
- June 5, 2006State Public Notification received1 linked violation
- May 25, 2006State Public Notification requested1 linked violation
- May 25, 2006State Violation/Reminder Notice1 linked violation
- May 17, 2006State Compliance achieved1 linked violation
- May 17, 2006State Public Notification received6 linked violations
- May 17, 2006State Compliance achieved1 linked violation
- May 17, 2006State Compliance achieved1 linked violation
- February 22, 2006State Compliance achieved1 linked violation
- February 22, 2006State Compliance achieved1 linked violation
- February 16, 2006State Public Notification requested1 linked violation
- February 16, 2006State Violation/Reminder Notice1 linked violation
- January 17, 2006State Public Notification requested1 linked violation
- January 17, 2006State Violation/Reminder Notice1 linked violation
- December 19, 2005State Public Notification requested1 linked violation
- December 6, 2005State Compliance achieved1 linked violation
- December 6, 2005State Public Notification received1 linked violation
- November 16, 2005State Violation/Reminder Notice1 linked violation
- November 16, 2005State Public Notification requested1 linked violation
- October 20, 2005State Violation/Reminder Notice3 linked violations
- August 15, 2005State Violation/Reminder Notice1 linked violation
- August 15, 2005State Public Notification requested1 linked violation
- June 15, 2005State Violation/Reminder Notice1 linked violation
- June 15, 2005State Public Notification requested1 linked violation
- November 20, 2003State Violation/Reminder Notice1 linked violation
- November 20, 2003State Public Notification requested1 linked violation
- November 4, 2003State Compliance achieved1 linked violation
- November 4, 2003State Compliance achieved1 linked violation
- November 4, 2003State Public Notification received2 linked violations
- October 22, 2003State Violation/Reminder Notice1 linked violation
- October 22, 2003State Public Notification requested1 linked violation
- October 22, 2003State Violation/Reminder Notice1 linked violation
- October 21, 2003State Public Notification received1 linked violation
- October 21, 2003State Compliance achieved1 linked violation
- October 6, 2003State Public Notification requested1 linked violation
- October 6, 2003State Violation/Reminder Notice1 linked violation
- May 2, 1994State Administrative/Compliance Order without penalty issued14 linked violations
Common questions
Is WILLOW required to publish a Consumer Confidence Report?
- Yes. WILLOW 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 WILLOW’s next Consumer Confidence Report due?
- WILLOW’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does WILLOW have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show 1 item for WILLOW 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
WILLOW
580-287-3398
WILLOW, OK 73673-0055