Kennewick, WA · Benton County
KENNEWICK 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)
- WA5338100
- System type
- Community Water System
- Population served
- 118,164
- Service connections
- 39,118
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
Violation history
Monitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
April 1, 2023 – June 30, 2023
ResolvedMonitoring and Reporting (DBP)
—TTHM
April 1, 2023 – June 30, 2023
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
August 1, 1993 – August 31, 1993
ArchivedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
October 1, 1979 – October 31, 1979
Archived
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| April 1, 2023 – June 30, 2023 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
| April 1, 2023 – June 30, 2023 | Monitoring and Reporting (DBP) | TTHM | — | Resolved |
| August 1, 1993 – August 31, 1993 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Archived |
| October 1, 1979 – October 31, 1979 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Archived |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- August 8, 2023State Compliance achieved1 linked violation
- August 8, 2023State Compliance achieved1 linked violation
- December 8, 2016State Compliance achieved1 linked violation
- December 8, 2016State Compliance achieved1 linked violation
- October 20, 2016State Compliance achieved1 linked violation
Contact
KENNEWICK CITY OF
Phone not on record
Kennewick, WA 99336