Snoqualmie Pass, WA · King County

SNOQUALMIE PASS UTILITY DISTRICT 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): WA5381048
System type: Community Water System
Population served: 5,805
Service connections: 902
Ownership: local government
Water source: groundwater (wells)

Violation history

Monitoring, Regular
—
Arsenic
July 1, 2023 – September 30, 2023
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
December 1, 2020 – December 31, 2020
Resolved
Monitoring, Regular
—
Dalapon
January 1, 2014 – December 31, 2022
Resolved
Monitoring, Regular
—
Picloram
January 1, 2014 – December 31, 2022
Resolved
Monitoring, Regular
—
Dinoseb
January 1, 2014 – December 31, 2022
Resolved
Monitoring, Regular
—
2,4,5-TP
January 1, 2014 – December 31, 2022
Resolved
Monitoring, Regular
—
Pentachlorophenol
January 1, 2014 – December 31, 2022
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2013 – October 28, 2013
Resolved
Monitoring, Regular
—
Arsenic
July 1, 2012 – September 30, 2012
Resolved
Monitoring, Regular
—
Arsenic
July 1, 2012 – September 30, 2012
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2011 – October 21, 2011
Resolved
Monitoring, Regular
—
Arsenic
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
Arsenic
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
Arsenic
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Arsenic
January 1, 2007 – March 31, 2007
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Arsenic
October 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Arsenic
October 1, 2006 – December 31, 2006
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 2006 – June 30, 2006
Archived
Monitoring, Regular
—
Ethylbenzene
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Styrene
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Endrin
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
BHC-GAMMA
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Methoxychlor
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Toxaphene
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Simazine
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Hexachlorocyclopentadiene
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Atrazine
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
LASSO
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Heptachlor
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Heptachlor epoxide
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Pentachlorophenol
January 1, 2005 – December 31, 2007
Archived
Monitoring, Regular
—
Chlordane
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Dalapon
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Picloram
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Dinoseb
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
2,4,5-TP
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Pentachlorophenol
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
OXAMYL
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Aldicarb sulfoxide
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Aldicarb sulfone
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Carbofuran
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Aldicarb
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Benzene
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Toluene
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Beryllium, Total
January 1, 2002 – December 31, 2010
Archived
Monitoring, Regular
—
Thallium, Total
January 1, 2002 – December 31, 2010
Archived
Monitoring, Regular
—
Antimony, Total
January 1, 2002 – December 31, 2010
Archived
Monitoring, Regular
—
Selenium
January 1, 2002 – December 31, 2010
Archived
Monitoring, Regular
—
Nickel
January 1, 2002 – December 31, 2010
Archived
Monitoring, Regular
—
Mercury
January 1, 2002 – December 31, 2010
Archived
Monitoring, Regular
—
Fluoride
January 1, 2002 – December 31, 2010
Archived
Monitoring, Regular
—
CYANIDE
January 1, 2002 – December 31, 2010
Archived
Monitoring, Regular
—
Chromium
January 1, 2002 – December 31, 2010
Archived
Monitoring, Regular
—
Cadmium
January 1, 2002 – December 31, 2010
Archived
Monitoring, Regular
—
Barium
January 1, 2002 – December 31, 2010
Archived
Monitoring, Regular
—
Arsenic
January 1, 2002 – December 31, 2010
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
November 1, 1996 – November 30, 1996
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 1996 – August 31, 1996
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
March 1, 1992 – March 31, 1992
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
January 1, 1992 – January 31, 1992
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
January 1, 1992 – January 31, 1992
Archived
Monitoring, Repeat Minor (TCR)
—
Coliform (TCR)
December 1, 1991 – December 31, 1991
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
December 1, 1991 – December 31, 1991
Archived
Monitoring, Regular
—
Nitrate
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Selenium
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Endrin
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
BHC-GAMMA
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Methoxychlor
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Toxaphene
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
2,4-D
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
2,4,5-TP
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Arsenic
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
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
—
Fluoride
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Mercury
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
July 1, 2023 – September 30, 2023	Monitoring, Regular	Arsenic	—	Resolved
December 1, 2020 – December 31, 2020	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
January 1, 2014 – December 31, 2022	Monitoring, Regular	Dalapon	—	Resolved
January 1, 2014 – December 31, 2022	Monitoring, Regular	Picloram	—	Resolved
January 1, 2014 – December 31, 2022	Monitoring, Regular	Dinoseb	—	Resolved
January 1, 2014 – December 31, 2022	Monitoring, Regular	2,4,5-TP	—	Resolved
January 1, 2014 – December 31, 2022	Monitoring, Regular	Pentachlorophenol	—	Resolved
July 1, 2013 – October 28, 2013	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2012 – September 30, 2012	Monitoring, Regular	Arsenic	—	Resolved
July 1, 2012 – September 30, 2012	Monitoring, Regular	Arsenic	—	Resolved
July 1, 2011 – October 21, 2011	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	Arsenic	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	Arsenic	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Arsenic	—	Resolved
January 1, 2007 – March 31, 2007	Monitoring, Regular	Arsenic	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	Nitrate	—	Resolved
October 1, 2006 – December 31, 2006	Monitoring, Regular	Arsenic	—	Resolved
October 1, 2006 – December 31, 2006	Monitoring, Regular	Arsenic	—	Resolved
June 1, 2006 – June 30, 2006	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
January 1, 2005 – December 31, 2007	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Styrene	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Endrin	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	BHC-GAMMA	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Methoxychlor	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Toxaphene	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Simazine	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Hexachlorocyclopentadiene	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Atrazine	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	LASSO	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Heptachlor	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Heptachlor epoxide	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Pentachlorophenol	—	Archived
January 1, 2005 – December 31, 2007	Monitoring, Regular	Chlordane	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Dalapon	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Picloram	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Dinoseb	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	2,4,5-TP	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Pentachlorophenol	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	OXAMYL	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Aldicarb sulfoxide	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Aldicarb sulfone	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Carbofuran	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Aldicarb	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Benzene	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Toluene	—	Resolved
January 1, 2002 – December 31, 2010	Monitoring, Regular	Beryllium, Total	—	Archived
January 1, 2002 – December 31, 2010	Monitoring, Regular	Thallium, Total	—	Archived
January 1, 2002 – December 31, 2010	Monitoring, Regular	Antimony, Total	—	Archived
January 1, 2002 – December 31, 2010	Monitoring, Regular	Selenium	—	Archived
January 1, 2002 – December 31, 2010	Monitoring, Regular	Nickel	—	Archived
January 1, 2002 – December 31, 2010	Monitoring, Regular	Mercury	—	Archived
January 1, 2002 – December 31, 2010	Monitoring, Regular	Fluoride	—	Archived
January 1, 2002 – December 31, 2010	Monitoring, Regular	CYANIDE	—	Archived
January 1, 2002 – December 31, 2010	Monitoring, Regular	Chromium	—	Archived
January 1, 2002 – December 31, 2010	Monitoring, Regular	Cadmium	—	Archived
January 1, 2002 – December 31, 2010	Monitoring, Regular	Barium	—	Archived
January 1, 2002 – December 31, 2010	Monitoring, Regular	Arsenic	—	Archived
November 1, 1996 – November 30, 1996	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
August 1, 1996 – August 31, 1996	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
March 1, 1992 – March 31, 1992	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
January 1, 1992 – January 31, 1992	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
January 1, 1992 – January 31, 1992	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
December 1, 1991 – December 31, 1991	Monitoring, Repeat Minor (TCR)	Coliform (TCR)	—	Archived
December 1, 1991 – December 31, 1991	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	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	Endrin	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	BHC-GAMMA	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Methoxychlor	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Toxaphene	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	2,4-D	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	2,4,5-TP	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Arsenic	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	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	Fluoride	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Mercury	—	Archived

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

Enforcement actions

September 25, 2025State Compliance achieved5 linked violations
November 29, 2023State Compliance achieved1 linked violation
January 11, 2021State Compliance achieved1 linked violation
October 3, 2016State Compliance achieved1 linked violation
October 28, 2013State Compliance achieved1 linked violation
December 18, 2012State Compliance achieved1 linked violation
December 18, 2012State Compliance achieved1 linked violation
November 30, 2012State Violation/Reminder Notice2 linked violations
November 29, 2012State Compliance achieved1 linked violation
October 21, 2011State Compliance achieved1 linked violation
July 19, 2011State Compliance achieved1 linked violation
April 27, 2009State Compliance achieved139 linked violations
May 7, 2008State Compliance achieved10 linked violations
April 30, 2008State Compliance achieved43 linked violations
January 1, 2008State Compliance achieved23 linked violations
May 24, 2007State Compliance achieved18 linked violations
January 31, 1992State Violation/Reminder Notice2 linked violations
December 31, 1991State Violation/Reminder Notice1 linked violation

Contact

SNOQUALMIE PASS UTILITY DISTRICT

Phone not on record

Snoqualmie Pass, WA 98068