West Richland, WA · Benton County

WEST RICHLAND 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): WA5394900
System type: Community Water System
Population served: 21,231
Service connections: 7,188
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Monitoring, Regular
—
Nitrate
January 1, 2021 – December 31, 2021
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2020 – March 31, 2020
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2020 – March 31, 2020
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2015 – September 3, 2015
Resolved
Monitoring, Regular
—
2,4,5-TP
July 1, 2008 – September 30, 2008
Resolved
Monitoring, Regular
—
Pentachlorophenol
July 1, 2008 – September 30, 2008
Resolved
Monitoring, Regular
—
Dalapon
July 1, 2008 – September 30, 2008
Resolved
Monitoring, Regular
—
Picloram
July 1, 2008 – September 30, 2008
Resolved
Monitoring, Regular
—
Dinoseb
July 1, 2008 – September 30, 2008
Resolved
Monitoring, Regular
—
Diquat
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Diquat
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Diquat
January 1, 2005 – December 31, 2007
Archived
Monitoring, Regular
—
Diquat
January 1, 2005 – December 31, 2007
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
April 1, 1996 – April 30, 1996
Archived
Monitoring, Regular
—
Arsenic
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Barium
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Cadmium
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Chromium
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Mercury
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Nitrate
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Selenium
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Fluoride
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
January 1, 2021 – December 31, 2021	Monitoring, Regular	Nitrate	—	Resolved
January 1, 2020 – March 31, 2020	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2020 – March 31, 2020	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
July 1, 2015 – September 3, 2015	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2008 – September 30, 2008	Monitoring, Regular	2,4,5-TP	—	Resolved
July 1, 2008 – September 30, 2008	Monitoring, Regular	Pentachlorophenol	—	Resolved
July 1, 2008 – September 30, 2008	Monitoring, Regular	Dalapon	—	Resolved
July 1, 2008 – September 30, 2008	Monitoring, Regular	Picloram	—	Resolved
July 1, 2008 – September 30, 2008	Monitoring, Regular	Dinoseb	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Diquat	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Diquat	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Diquat	—	Archived
January 1, 2005 – December 31, 2007	Monitoring, Regular	Diquat	—	Resolved
April 1, 1996 – April 30, 1996	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Arsenic	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Barium	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Cadmium	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Chromium	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Mercury	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Nitrate	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Selenium	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Fluoride	—	Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

March 11, 2022State Compliance achieved1 linked violation
May 6, 2020State Compliance achieved1 linked violation
May 6, 2020State Compliance achieved1 linked violation
September 3, 2015State Compliance achieved1 linked violation
November 20, 2008State Compliance achieved17 linked violations
November 20, 2008State Compliance achieved8 linked violations
October 19, 1994State Violation/Reminder Notice1 linked violation
June 30, 1993Federal Proposed Administrative Order Issuedgeneral compliance action — not tied to a specific violation on record

Contact

WEST RICHLAND CITY OF

Phone not on record

West Richland, WA 99353