Maple Valley, WA · King County
BILLINGTON 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)
- WA5380710
- System type
- Community Water System
- Population served
- 34
- Service connections
- 11
- Ownership
- privately owned
- Water source
- groundwater (wells)
Violation history
Monitoring, Routine (RTCR)
—Revised Total Coliform Rule
March 1, 2025 – March 31, 2025
ResolvedMonitoring, Regular
—cis-1,2-Dichloroethylene
April 1, 2014 – June 30, 2014
ResolvedMonitoring, Regular
—DICHLOROMETHANE
April 1, 2014 – June 30, 2014
ResolvedMonitoring, Regular
—o-Dichlorobenzene
April 1, 2014 – June 30, 2014
ResolvedMonitoring, Regular
—p-Dichlorobenzene
April 1, 2014 – June 30, 2014
ResolvedMonitoring, Regular
—Vinyl chloride
April 1, 2014 – June 30, 2014
ResolvedMonitoring, Regular
—1,1-Dichloroethylene
April 1, 2014 – June 30, 2014
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
April 1, 2014 – June 30, 2014
ResolvedMonitoring, Regular
—1,2-Dichloroethane
April 1, 2014 – June 30, 2014
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
April 1, 2014 – June 30, 2014
ResolvedMonitoring, Regular
—Carbon tetrachloride
April 1, 2014 – June 30, 2014
ResolvedMonitoring, Regular
—1,2,4-Trichlorobenzene
April 1, 2014 – June 30, 2014
ResolvedMonitoring, Regular
—Trichloroethylene
April 1, 2014 – June 30, 2014
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
April 1, 2014 – June 30, 2014
ResolvedMonitoring, Regular
—Tetrachloroethylene
April 1, 2014 – June 30, 2014
ResolvedMonitoring, Regular
—CHLOROBENZENE
April 1, 2014 – June 30, 2014
ResolvedMonitoring, Regular
—Benzene
April 1, 2014 – June 30, 2014
ResolvedMonitoring, Regular
—Toluene
April 1, 2014 – June 30, 2014
ResolvedMonitoring, Regular
—Ethylbenzene
April 1, 2014 – June 30, 2014
ResolvedMonitoring, Regular
—Styrene
April 1, 2014 – June 30, 2014
ResolvedMonitoring, Regular
—1,2-Dichloropropane
April 1, 2014 – June 30, 2014
ResolvedInitial Tap Sampling for Pb and Cu
—Lead and Copper Rule
January 1, 2014 – April 20, 2015
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| March 1, 2025 – March 31, 2025 | Monitoring, Routine (RTCR) | Revised Total Coliform Rule | — | Resolved |
| April 1, 2014 – June 30, 2014 | Monitoring, Regular | cis-1,2-Dichloroethylene | — | Resolved |
| April 1, 2014 – June 30, 2014 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| April 1, 2014 – June 30, 2014 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| April 1, 2014 – June 30, 2014 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| April 1, 2014 – June 30, 2014 | Monitoring, Regular | Vinyl chloride | — | Resolved |
| April 1, 2014 – June 30, 2014 | Monitoring, Regular | 1,1-Dichloroethylene | — | Resolved |
| April 1, 2014 – June 30, 2014 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| April 1, 2014 – June 30, 2014 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| April 1, 2014 – June 30, 2014 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| April 1, 2014 – June 30, 2014 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| April 1, 2014 – June 30, 2014 | Monitoring, Regular | 1,2,4-Trichlorobenzene | — | Resolved |
| April 1, 2014 – June 30, 2014 | Monitoring, Regular | Trichloroethylene | — | Resolved |
| April 1, 2014 – June 30, 2014 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| April 1, 2014 – June 30, 2014 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| April 1, 2014 – June 30, 2014 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| April 1, 2014 – June 30, 2014 | Monitoring, Regular | Benzene | — | Resolved |
| April 1, 2014 – June 30, 2014 | Monitoring, Regular | Toluene | — | Resolved |
| April 1, 2014 – June 30, 2014 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| April 1, 2014 – June 30, 2014 | Monitoring, Regular | Styrene | — | Resolved |
| April 1, 2014 – June 30, 2014 | Monitoring, Regular | 1,2-Dichloropropane | — | Resolved |
| January 1, 2014 – April 20, 2015 | Initial Tap Sampling for Pb and Cu | Lead and Copper Rule | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- April 9, 2025State Compliance achieved1 linked violation
- April 20, 2015State Compliance achieved1 linked violation
- October 1, 2014State Compliance achieved20 linked violations
Contact
BILLINGTON
Phone not on record
Maple Valley, WA 98038-8643