Oak Harbor, WA · Island County
OAK HARBOR CITY OF 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 Washington’s official records. Always confirm current status with Washington before making decisions based on this information.
System facts
- System ID (PWSID)
- WA5362650
- System type
- Community Water System
- Population served
- 23,767
- Service connections
- 8,825
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
Violation history
Monitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
October 1, 2025 – December 31, 2025
ArchivedMonitoring and Reporting (DBP)
—TTHM
October 1, 2025 – December 31, 2025
ArchivedMonitoring and Reporting (DBP)
—TTHM
January 1, 2024 – March 31, 2024
ResolvedMonitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
January 1, 2024 – March 31, 2024
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
August 1, 2013 – August 31, 2013
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
February 1, 1994 – February 28, 1994
ArchivedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
July 1, 1992 – July 31, 1992
ArchivedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
February 1, 1992 – February 29, 1992
ArchivedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
December 1, 1991 – December 31, 1991
ArchivedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
November 1, 1991 – November 30, 1991
ArchivedMaximum Contaminant Level Violation, Average
Health-basedFluoride
May 1, 1983 – September 30, 1983
Archived
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 |
|---|---|---|---|---|
| October 1, 2025 – December 31, 2025 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Archived |
| October 1, 2025 – December 31, 2025 | Monitoring and Reporting (DBP) | TTHM | — | Archived |
| January 1, 2024 – March 31, 2024 | Monitoring and Reporting (DBP) | TTHM | — | Resolved |
| January 1, 2024 – March 31, 2024 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
| August 1, 2013 – August 31, 2013 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| February 1, 1994 – February 28, 1994 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Archived |
| July 1, 1992 – July 31, 1992 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Archived |
| February 1, 1992 – February 29, 1992 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Archived |
| December 1, 1991 – December 31, 1991 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Archived |
| November 1, 1991 – November 30, 1991 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Archived |
| May 1, 1983 – September 30, 1983 | Maximum Contaminant Level Violation, Average | Fluoride | Health-based | Archived |
Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state
Enforcement actions
- June 27, 2024State Compliance achieved1 linked violation
- June 27, 2024State Compliance achieved1 linked violation
- September 30, 2013State Compliance achieved1 linked violation
- September 30, 1992State Violation/Reminder Notice1 linked violation
- July 31, 1992State Violation/Reminder Notice1 linked violation
- January 31, 1992State Violation/Reminder Notice1 linked violation
Contact
OAK HARBOR CITY OF
Phone not on record
Oak Harbor, WA 98277