Renton, WA · King County
KING COUNTY WATER DISTRICT NO 90 Water System
Consumer Confidence Report status
KING COUNTY WATER DISTRICT NO 90 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 no open violations for KING COUNTY WATER DISTRICT NO 90.
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 Washington’s official records. Always confirm current status with Washington before making decisions based on this information.
System facts
- System ID (PWSID)
- WA5341150
- System type
- Community Water System
- Population served
- 20,100
- Service connections
- 8,081
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
KING COUNTY WATER DISTRICT NO 90 is one of 111 community water systems in Washington in the 10,001 to 100,000 people size category, serving 20,100 people from surface water.
As of August 1, 2026, its federal record holds 44 entries between 2003 and 2024, all of which EPA lists as closed.
Of the 44, 42 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 volatile organic chemicals, the Consumer Confidence Rule, and inorganic chemicals.
Violation history
Consumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2024 – February 19, 2025
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2021 – August 26, 2021
ResolvedMonitoring, Regular
—Nitrate
January 1, 2007 – December 31, 2007
ResolvedMonitoring, Regular
—Toluene
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—1,2,4-Trichlorobenzene
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—cis-1,2-Dichloroethylene
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—DICHLOROMETHANE
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—o-Dichlorobenzene
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—p-Dichlorobenzene
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—Vinyl chloride
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—1,1-Dichloroethylene
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—1,2-Dichloroethane
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—Carbon tetrachloride
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—1,2-Dichloropropane
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—Trichloroethylene
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—Tetrachloroethylene
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—CHLOROBENZENE
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—Benzene
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—Ethylbenzene
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—Styrene
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—cis-1,2-Dichloroethylene
January 1, 2005 – March 31, 2005
ResolvedMonitoring, Regular
—1,2,4-Trichlorobenzene
January 1, 2005 – March 31, 2005
ResolvedMonitoring, Regular
—o-Dichlorobenzene
January 1, 2005 – March 31, 2005
ResolvedMonitoring, Regular
—p-Dichlorobenzene
January 1, 2005 – March 31, 2005
ResolvedMonitoring, Regular
—Vinyl chloride
January 1, 2005 – March 31, 2005
ResolvedMonitoring, Regular
—1,1-Dichloroethylene
January 1, 2005 – March 31, 2005
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
January 1, 2005 – March 31, 2005
ResolvedMonitoring, Regular
—1,2-Dichloroethane
January 1, 2005 – March 31, 2005
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
January 1, 2005 – March 31, 2005
ResolvedMonitoring, Regular
—Carbon tetrachloride
January 1, 2005 – March 31, 2005
ResolvedMonitoring, Regular
—1,2-Dichloropropane
January 1, 2005 – March 31, 2005
ResolvedMonitoring, Regular
—Trichloroethylene
January 1, 2005 – March 31, 2005
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
January 1, 2005 – March 31, 2005
ResolvedMonitoring, Regular
—Tetrachloroethylene
January 1, 2005 – March 31, 2005
ResolvedMonitoring, Regular
—CHLOROBENZENE
January 1, 2005 – March 31, 2005
ResolvedMonitoring, Regular
—Benzene
January 1, 2005 – March 31, 2005
ResolvedMonitoring, Regular
—Toluene
January 1, 2005 – March 31, 2005
ResolvedMonitoring, Regular
—Ethylbenzene
January 1, 2005 – March 31, 2005
ResolvedMonitoring, Regular
—Styrene
January 1, 2005 – March 31, 2005
ResolvedMonitoring, Regular
—DICHLOROMETHANE
January 1, 2005 – March 31, 2005
ResolvedMonitoring, Regular
—Nitrate
January 1, 2003 – December 31, 2003
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| July 1, 2024 – February 19, 2025 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| July 1, 2021 – August 26, 2021 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| January 1, 2007 – December 31, 2007 | Monitoring, Regular | Nitrate | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | Toluene | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | 1,2,4-Trichlorobenzene | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | cis-1,2-Dichloroethylene | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | Vinyl chloride | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | 1,1-Dichloroethylene | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | 1,2-Dichloropropane | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | Trichloroethylene | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | Benzene | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | Styrene | — | Resolved |
| January 1, 2005 – March 31, 2005 | Monitoring, Regular | cis-1,2-Dichloroethylene | — | Resolved |
| January 1, 2005 – March 31, 2005 | Monitoring, Regular | 1,2,4-Trichlorobenzene | — | Resolved |
| January 1, 2005 – March 31, 2005 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| January 1, 2005 – March 31, 2005 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| January 1, 2005 – March 31, 2005 | Monitoring, Regular | Vinyl chloride | — | Resolved |
| January 1, 2005 – March 31, 2005 | Monitoring, Regular | 1,1-Dichloroethylene | — | Resolved |
| January 1, 2005 – March 31, 2005 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| January 1, 2005 – March 31, 2005 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| January 1, 2005 – March 31, 2005 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| January 1, 2005 – March 31, 2005 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| January 1, 2005 – March 31, 2005 | Monitoring, Regular | 1,2-Dichloropropane | — | Resolved |
| January 1, 2005 – March 31, 2005 | Monitoring, Regular | Trichloroethylene | — | Resolved |
| January 1, 2005 – March 31, 2005 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| January 1, 2005 – March 31, 2005 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| January 1, 2005 – March 31, 2005 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| January 1, 2005 – March 31, 2005 | Monitoring, Regular | Benzene | — | Resolved |
| January 1, 2005 – March 31, 2005 | Monitoring, Regular | Toluene | — | Resolved |
| January 1, 2005 – March 31, 2005 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| January 1, 2005 – March 31, 2005 | Monitoring, Regular | Styrene | — | Resolved |
| January 1, 2005 – March 31, 2005 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| January 1, 2003 – December 31, 2003 | Monitoring, Regular | Nitrate | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- February 19, 2025State Compliance achieved1 linked violation
- August 26, 2021State Compliance achieved1 linked violation
- March 12, 2008State Compliance achieved11 linked violations
- January 1, 2008State Compliance achieved8 linked violations
- August 30, 2005State Compliance achieved51 linked violations
- August 30, 2005State Compliance achieved60 linked violations
- August 30, 2005State Compliance achieved41 linked violations
- July 31, 1992State Violation/Reminder Notice1 linked violation
- November 30, 1991State Violation/Reminder Notice1 linked violation
Common questions
Is KING COUNTY WATER DISTRICT NO 90 required to publish a Consumer Confidence Report?
- Yes. KING COUNTY WATER DISTRICT NO 90 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 KING COUNTY WATER DISTRICT NO 90’s next Consumer Confidence Report due?
- KING COUNTY WATER DISTRICT NO 90’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does KING COUNTY WATER DISTRICT NO 90 have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for KING COUNTY WATER DISTRICT NO 90.
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
KING COUNTY WATER DISTRICT NO 90
Phone not on record
Renton, WA 98059