WESTPORT, WA · Grays Harbor County
WESTPORT WATER DEPARTMENT 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)
- WA5395300
- System type
- Community Water System
- Population served
- 5,346
- Service connections
- 3,130
- Ownership
- local government
- Water source
- groundwater (wells)
Violation history
Maximum Contaminant Level Violation, Single Sample
Health-basedArsenic
January 1, 2025 – March 31, 2025
ArchivedMaximum Contaminant Level Violation, Single Sample
Health-basedArsenic
October 1, 2024 – December 31, 2024
ArchivedMaximum Contaminant Level Violation, Single Sample
Health-basedArsenic
July 1, 2024 – September 30, 2024
ArchivedMonitoring, Regular
—Arsenic
January 1, 2023 – March 31, 2023
ResolvedMonitoring, Regular
—Arsenic
April 1, 2021 – June 30, 2021
ResolvedMonitoring, Routine (RTCR)
—Revised Total Coliform Rule
October 1, 2017 – October 31, 2017
ResolvedMonitoring, Regular
—2,4,5-TP
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—Dinoseb
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—Picloram
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—Dalapon
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—Pentachlorophenol
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—2,4,5-TP
January 1, 2014 – December 31, 2016
ResolvedMonitoring, Regular
—Pentachlorophenol
January 1, 2014 – December 31, 2016
ResolvedMonitoring, Regular
—Dalapon
January 1, 2014 – December 31, 2016
ResolvedMonitoring, Regular
—Picloram
January 1, 2014 – December 31, 2016
ResolvedMonitoring, Regular
—Dinoseb
January 1, 2014 – December 31, 2016
ResolvedMonitoring, Regular
—Arsenic
July 1, 2009 – September 30, 2009
ResolvedMonitoring, Regular
—Arsenic
July 1, 2009 – September 30, 2009
ResolvedMonitoring, Regular
—Nitrate
January 1, 2007 – December 31, 2007
ResolvedMonitoring, Regular
—Hexachlorocyclopentadiene
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) phthalate
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—Simazine
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) adipate
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—Toxaphene
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—Methoxychlor
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—BHC-GAMMA
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—Endrin
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—1,2,4-Trichlorobenzene
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—cis-1,2-Dichloroethylene
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—DICHLOROMETHANE
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—o-Dichlorobenzene
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—p-Dichlorobenzene
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—Vinyl chloride
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—1,1-Dichloroethylene
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—1,2-Dichloroethane
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—Carbon tetrachloride
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—1,2-Dichloropropane
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—Trichloroethylene
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—Tetrachloroethylene
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—CHLOROBENZENE
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—Benzene
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—Toluene
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—Styrene
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—Ethylbenzene
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—Aldicarb
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—Carbofuran
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—Aldicarb sulfone
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—Aldicarb sulfoxide
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—OXAMYL
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—Pentachlorophenol
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—2,4,5-TP
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—Dinoseb
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—Picloram
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—Dalapon
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—Chlordane
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—Pentachlorophenol
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—Benzo(a)pyrene
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—HEXACHLOROBENZENE
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—Heptachlor epoxide
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—Heptachlor
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—LASSO
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—Atrazine
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Regular
—Toxaphene
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—Dalapon
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—Picloram
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—Dinoseb
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—2,4,5-TP
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—Pentachlorophenol
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—OXAMYL
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—Aldicarb sulfoxide
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—Aldicarb sulfone
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—Carbofuran
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—Aldicarb
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—1,2,4-Trichlorobenzene
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—cis-1,2-Dichloroethylene
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—DICHLOROMETHANE
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—o-Dichlorobenzene
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—p-Dichlorobenzene
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—Vinyl chloride
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—1,1-Dichloroethylene
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—1,2-Dichloroethane
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—Carbon tetrachloride
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—1,2-Dichloropropane
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—Trichloroethylene
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—Tetrachloroethylene
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—CHLOROBENZENE
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—Benzene
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—Toluene
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—Ethylbenzene
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—Styrene
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—Endrin
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—BHC-GAMMA
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—Methoxychlor
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) adipate
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—Simazine
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) phthalate
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—Hexachlorocyclopentadiene
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—Atrazine
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—LASSO
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—Heptachlor
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—Heptachlor epoxide
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—HEXACHLOROBENZENE
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—Benzo(a)pyrene
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—Pentachlorophenol
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—Chlordane
January 1, 2006 – March 31, 2006
ResolvedMonitoring, Regular
—cis-1,2-Dichloroethylene
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—CHLOROBENZENE
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—Tetrachloroethylene
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—Trichloroethylene
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—1,2-Dichloropropane
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—Carbon tetrachloride
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—1,2-Dichloroethane
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—1,1-Dichloroethylene
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—Vinyl chloride
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—Chlordane
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—Pentachlorophenol
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—Benzo(a)pyrene
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—HEXACHLOROBENZENE
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—Heptachlor epoxide
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—Heptachlor
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—LASSO
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—Atrazine
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—Hexachlorocyclopentadiene
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) phthalate
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—Simazine
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) adipate
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—Toxaphene
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—Methoxychlor
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—BHC-GAMMA
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—Endrin
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—Pentachlorophenol
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—2,4,5-TP
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—Dinoseb
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—Picloram
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—Dalapon
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—Aldicarb
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—Carbofuran
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—Aldicarb sulfone
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—Aldicarb sulfoxide
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—OXAMYL
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—p-Dichlorobenzene
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—o-Dichlorobenzene
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—1,2,4-Trichlorobenzene
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—DICHLOROMETHANE
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—Benzene
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—Styrene
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—Ethylbenzene
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—Toluene
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—Diquat
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
December 1, 1992 – December 31, 1992
ArchivedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
November 1, 1992 – November 30, 1992
ArchivedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
October 1, 1992 – October 31, 1992
ArchivedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
September 1, 1992 – September 30, 1992
ArchivedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
August 1, 1992 – August 31, 1992
ArchivedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
July 1, 1992 – July 31, 1992
ArchivedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
May 1, 1992 – May 31, 1992
ArchivedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
March 1, 1992 – March 31, 1992
ArchivedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
December 1, 1991 – December 31, 1991
ArchivedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
October 1, 1979 – October 31, 1979
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 |
|---|---|---|---|---|
| January 1, 2025 – March 31, 2025 | Maximum Contaminant Level Violation, Single Sample | Arsenic | Health-based | Archived |
| October 1, 2024 – December 31, 2024 | Maximum Contaminant Level Violation, Single Sample | Arsenic | Health-based | Archived |
| July 1, 2024 – September 30, 2024 | Maximum Contaminant Level Violation, Single Sample | Arsenic | Health-based | Archived |
| January 1, 2023 – March 31, 2023 | Monitoring, Regular | Arsenic | — | Resolved |
| April 1, 2021 – June 30, 2021 | Monitoring, Regular | Arsenic | — | Resolved |
| October 1, 2017 – October 31, 2017 | Monitoring, Routine (RTCR) | Revised Total Coliform Rule | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | 2,4,5-TP | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | Dinoseb | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | Picloram | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | Dalapon | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | Pentachlorophenol | — | Resolved |
| January 1, 2014 – December 31, 2016 | Monitoring, Regular | 2,4,5-TP | — | Resolved |
| January 1, 2014 – December 31, 2016 | Monitoring, Regular | Pentachlorophenol | — | Resolved |
| January 1, 2014 – December 31, 2016 | Monitoring, Regular | Dalapon | — | Resolved |
| January 1, 2014 – December 31, 2016 | Monitoring, Regular | Picloram | — | Resolved |
| January 1, 2014 – December 31, 2016 | Monitoring, Regular | Dinoseb | — | Resolved |
| July 1, 2009 – September 30, 2009 | Monitoring, Regular | Arsenic | — | Resolved |
| July 1, 2009 – September 30, 2009 | Monitoring, Regular | Arsenic | — | Resolved |
| January 1, 2007 – December 31, 2007 | Monitoring, Regular | Nitrate | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | Hexachlorocyclopentadiene | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | Di(2-ethylhexyl) phthalate | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | Simazine | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | Di(2-ethylhexyl) adipate | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | Toxaphene | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | Methoxychlor | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | BHC-GAMMA | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | Endrin | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | 1,2,4-Trichlorobenzene | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | cis-1,2-Dichloroethylene | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | Vinyl chloride | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | 1,1-Dichloroethylene | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | 1,2-Dichloropropane | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | Trichloroethylene | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | Benzene | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | Toluene | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | Styrene | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | Aldicarb | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | Carbofuran | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | Aldicarb sulfone | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | Aldicarb sulfoxide | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | OXAMYL | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | Pentachlorophenol | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | 2,4,5-TP | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | Dinoseb | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | Picloram | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | Dalapon | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | Chlordane | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | Pentachlorophenol | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | Benzo(a)pyrene | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | HEXACHLOROBENZENE | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | Heptachlor epoxide | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | Heptachlor | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | LASSO | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring, Regular | Atrazine | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | Toxaphene | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | Dalapon | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | Picloram | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | Dinoseb | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | 2,4,5-TP | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | Pentachlorophenol | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | OXAMYL | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | Aldicarb sulfoxide | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | Aldicarb sulfone | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | Carbofuran | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | Aldicarb | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | 1,2,4-Trichlorobenzene | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | cis-1,2-Dichloroethylene | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | Vinyl chloride | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | 1,1-Dichloroethylene | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | 1,2-Dichloropropane | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | Trichloroethylene | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | Benzene | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | Toluene | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | Styrene | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | Endrin | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | BHC-GAMMA | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | Methoxychlor | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | Di(2-ethylhexyl) adipate | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | Simazine | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | Di(2-ethylhexyl) phthalate | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | Hexachlorocyclopentadiene | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | Atrazine | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | LASSO | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | Heptachlor | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | Heptachlor epoxide | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | HEXACHLOROBENZENE | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | Benzo(a)pyrene | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | Pentachlorophenol | — | Resolved |
| January 1, 2006 – March 31, 2006 | Monitoring, Regular | Chlordane | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | cis-1,2-Dichloroethylene | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | Trichloroethylene | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | 1,2-Dichloropropane | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | 1,1-Dichloroethylene | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | Vinyl chloride | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | Chlordane | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | Pentachlorophenol | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | Benzo(a)pyrene | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | HEXACHLOROBENZENE | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | Heptachlor epoxide | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | Heptachlor | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | LASSO | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | Atrazine | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | Hexachlorocyclopentadiene | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | Di(2-ethylhexyl) phthalate | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | Simazine | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | Di(2-ethylhexyl) adipate | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | Toxaphene | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | Methoxychlor | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | BHC-GAMMA | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | Endrin | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | Pentachlorophenol | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | 2,4,5-TP | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | Dinoseb | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | Picloram | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | Dalapon | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | Aldicarb | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | Carbofuran | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | Aldicarb sulfone | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | Aldicarb sulfoxide | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | OXAMYL | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | 1,2,4-Trichlorobenzene | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | Benzene | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | Styrene | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | Toluene | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | Diquat | — | Resolved |
| December 1, 1992 – December 31, 1992 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Archived |
| November 1, 1992 – November 30, 1992 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Archived |
| October 1, 1992 – October 31, 1992 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Archived |
| September 1, 1992 – September 30, 1992 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Archived |
| August 1, 1992 – August 31, 1992 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Archived |
| July 1, 1992 – July 31, 1992 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Archived |
| May 1, 1992 – May 31, 1992 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Archived |
| March 1, 1992 – March 31, 1992 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Archived |
| December 1, 1991 – December 31, 1991 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Archived |
| October 1, 1979 – October 31, 1979 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Archived |
Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state
Enforcement actions
- December 4, 2025State Administrative/Compliance Order without penalty issued11 linked violations
- April 4, 2023State Compliance achieved1 linked violation
- August 24, 2021State Compliance achieved1 linked violation
- April 14, 2020State Compliance achieved10 linked violations
- November 14, 2017State Compliance achieved1 linked violation
- October 6, 2009State Compliance achieved3 linked violations
- October 6, 2009State Compliance achieved2 linked violations
- March 11, 2008State Compliance achieved7 linked violations
- January 1, 2008State Compliance achieved2 linked violations
- January 1, 2008State Compliance achieved7 linked violations
- January 1, 2008State Compliance achieved3 linked violations
- January 1, 2008State Compliance achieved5 linked violations
- August 1, 2006State Compliance achieved137 linked violations
- August 1, 2006State Compliance achieved108 linked violations
- August 1, 2006State Compliance achieved151 linked violations
- July 1, 2006State Compliance achieved16 linked violations
- July 1, 2006State Compliance achieved27 linked violations
- September 27, 2005State Compliance achieved94 linked violations
- September 27, 2005State Compliance achieved76 linked violations
- November 30, 1992State Violation/Reminder Notice1 linked violation
- October 31, 1992State Violation/Reminder Notice1 linked violation
- September 30, 1992State Violation/Reminder Notice1 linked violation
- August 31, 1992State Violation/Reminder Notice1 linked violation
- July 31, 1992State Violation/Reminder Notice1 linked violation
- June 30, 1992State Violation/Reminder Notice1 linked violation
- May 31, 1992State Violation/Reminder Notice1 linked violation
- April 30, 1992State Violation/Reminder Notice1 linked violation
- March 31, 1992State Violation/Reminder Notice1 linked violation
- February 29, 1992State Violation/Reminder Notice1 linked violation
Contact
WESTPORT WATER DEPARTMENT
Phone not on record
WESTPORT, WA 98595