Lummi Island, WA · Whatcom County

SUNSET WATER & MAINTENANCE ASSOC 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): WA5306514
System type: Community Water System
Population served: 35
Service connections: 20
Ownership: privately owned
Water source: groundwater (wells)

Violation history

Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2025 – September 29, 2025
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2024 – September 30, 2024
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2023 – September 27, 2023
Resolved
Monitoring, Regular
—
Dinoseb
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Dalapon
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Pentachlorophenol
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
2,4,5-TP
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Picloram
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Nitrate
January 1, 2022 – December 31, 2022
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2021 – October 7, 2021
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2020 – December 31, 2020
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2020 – September 19, 2023
Resolved
Monitoring, Regular
—
Arsenic
January 1, 2020 – December 31, 2022
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2018 – November 29, 2018
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2014 – December 22, 2014
Resolved
Monitoring, Regular
—
2,4,5-TP
January 1, 2014 – December 31, 2022
Archived
Monitoring, Regular
—
Pentachlorophenol
January 1, 2014 – December 31, 2022
Archived
Monitoring, Regular
—
Dinoseb
January 1, 2014 – December 31, 2022
Archived
Monitoring, Regular
—
Picloram
January 1, 2014 – December 31, 2022
Archived
Monitoring, Regular
—
Dalapon
January 1, 2014 – December 31, 2022
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 2006 – October 31, 2006
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 2006 – August 31, 2006
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 2005 – October 31, 2005
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 2005 – August 31, 2005
Archived
Monitoring, Regular
—
Toluene
April 1, 2005 – June 30, 2005
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
April 1, 2005 – June 30, 2005
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
April 1, 2005 – June 30, 2005
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
April 1, 2005 – June 30, 2005
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
April 1, 2005 – June 30, 2005
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
April 1, 2005 – June 30, 2005
Resolved
Monitoring, Regular
—
Vinyl chloride
April 1, 2005 – June 30, 2005
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
April 1, 2005 – June 30, 2005
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
April 1, 2005 – June 30, 2005
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
April 1, 2005 – June 30, 2005
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
April 1, 2005 – June 30, 2005
Resolved
Monitoring, Regular
—
Carbon tetrachloride
April 1, 2005 – June 30, 2005
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
April 1, 2005 – June 30, 2005
Resolved
Monitoring, Regular
—
Trichloroethylene
April 1, 2005 – June 30, 2005
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
April 1, 2005 – June 30, 2005
Resolved
Monitoring, Regular
—
Tetrachloroethylene
April 1, 2005 – June 30, 2005
Resolved
Monitoring, Regular
—
CHLOROBENZENE
April 1, 2005 – June 30, 2005
Resolved
Monitoring, Regular
—
Benzene
April 1, 2005 – June 30, 2005
Resolved
Monitoring, Regular
—
Ethylbenzene
April 1, 2005 – June 30, 2005
Resolved
Monitoring, Regular
—
Styrene
April 1, 2005 – June 30, 2005
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
Styrene
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
Toluene
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
Benzene
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2005 – March 31, 2005
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
November 1, 2004 – November 30, 2004
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
July 1, 2025 – September 29, 2025	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2024 – September 30, 2024	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2023 – September 27, 2023	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	Dinoseb	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Dalapon	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Pentachlorophenol	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	2,4,5-TP	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Picloram	—	Archived
January 1, 2022 – December 31, 2022	Monitoring, Regular	Nitrate	—	Resolved
July 1, 2021 – October 7, 2021	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2020 – December 31, 2020	Monitoring, Regular	Nitrate	—	Resolved
January 1, 2020 – September 19, 2023	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	Arsenic	—	Resolved
July 1, 2018 – November 29, 2018	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2014 – December 22, 2014	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2014 – December 31, 2022	Monitoring, Regular	2,4,5-TP	—	Archived
January 1, 2014 – December 31, 2022	Monitoring, Regular	Pentachlorophenol	—	Archived
January 1, 2014 – December 31, 2022	Monitoring, Regular	Dinoseb	—	Archived
January 1, 2014 – December 31, 2022	Monitoring, Regular	Picloram	—	Archived
January 1, 2014 – December 31, 2022	Monitoring, Regular	Dalapon	—	Archived
October 1, 2006 – October 31, 2006	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
August 1, 2006 – August 31, 2006	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
October 1, 2005 – October 31, 2005	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
August 1, 2005 – August 31, 2005	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
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	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	Styrene	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	Toluene	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	Benzene	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
November 1, 2004 – November 30, 2004	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived

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

Enforcement actions

September 29, 2025State Compliance achieved1 linked violation
September 30, 2024State Compliance achieved1 linked violation
June 20, 2024State Compliance achieved1 linked violation
September 27, 2023State Compliance achieved1 linked violation
September 19, 2023State Compliance achieved1 linked violation
September 1, 2023State Compliance achieved1 linked violation
September 1, 2023State Compliance achieved1 linked violation
October 7, 2021State Compliance achieved1 linked violation
July 30, 2021State Compliance achieved1 linked violation
November 29, 2018State Compliance achieved1 linked violation
December 18, 2017State Compliance achieved1 linked violation
December 22, 2014State Compliance achieved1 linked violation
July 20, 2005State Compliance achieved40 linked violations
July 20, 2005State Compliance achieved81 linked violations

Contact

SUNSET WATER & MAINTENANCE ASSOC

Phone not on record

Lummi Island, WA 98262