Black Diamond, WA · King County

SOUTH AUBURN WATER ASSOCIATION 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): WA5381400
System type: Community Water System
Population served: 212
Service connections: 45
Ownership: privately owned
Water source: groundwater (wells)

Violation history

Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2018 – November 19, 2018
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2015 – October 16, 2015
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
Styrene
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
Toluene
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
Benzene
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2014 – December 31, 2016
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2013 – October 28, 2013
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2008 – December 31, 2010
Archived
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2008 – December 31, 2010
Archived
Monitoring, Regular
—
Vinyl chloride
January 1, 2008 – December 31, 2010
Archived
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2008 – December 31, 2010
Archived
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2008 – December 31, 2010
Archived
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2008 – December 31, 2010
Archived
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2008 – December 31, 2010
Archived
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2008 – December 31, 2010
Archived
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2008 – December 31, 2010
Archived
Monitoring, Regular
—
Trichloroethylene
January 1, 2008 – December 31, 2010
Archived
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2008 – December 31, 2010
Archived
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2008 – December 31, 2010
Archived
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2008 – December 31, 2010
Archived
Monitoring, Regular
—
Benzene
January 1, 2008 – December 31, 2010
Archived
Monitoring, Regular
—
Toluene
January 1, 2008 – December 31, 2010
Archived
Monitoring, Regular
—
Ethylbenzene
January 1, 2008 – December 31, 2010
Archived
Monitoring, Regular
—
Styrene
January 1, 2008 – December 31, 2010
Archived
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2008 – December 31, 2010
Archived
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2008 – December 31, 2010
Archived
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2008 – December 31, 2010
Archived
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Styrene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Benzene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Toluene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2006 – December 31, 2006
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
June 1, 2005 – June 30, 2005
Archived
Monitoring, Regular
—
2,4,5-TP
January 1, 2005 – December 31, 2007
Archived
Monitoring, Regular
—
Dinoseb
January 1, 2005 – December 31, 2007
Archived
Monitoring, Regular
—
Picloram
January 1, 2005 – December 31, 2007
Archived
Monitoring, Regular
—
Dalapon
January 1, 2005 – December 31, 2007
Archived
Monitoring, Regular
—
Pentachlorophenol
January 1, 2005 – December 31, 2007
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 2004 – July 31, 2004
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 2003 – November 30, 2003
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
October 1, 2003 – October 31, 2003
Archived
Monitoring, Regular
—
Cadmium
January 1, 2002 – December 31, 2010
Archived
Monitoring, Regular
—
Barium
January 1, 2002 – December 31, 2010
Archived
Monitoring, Regular
—
Thallium, Total
January 1, 2002 – December 31, 2010
Archived
Monitoring, Regular
—
Beryllium, 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
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
February 1, 1999 – February 28, 1999
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 1998 – July 31, 1998
Archived
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
July 1, 1997 – July 31, 1997
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 1997 – June 30, 1997
Archived
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
May 1, 1997 – May 31, 1997
Archived
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
March 1, 1997 – March 31, 1997
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 1996 – November 30, 1996
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 1996 – September 30, 1996
Archived
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
June 1, 1996 – June 30, 1996
Archived
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
October 1, 1995 – October 31, 1995
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
March 1, 1994 – March 31, 1994
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 1993 – July 31, 1993
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
January 1, 1993 – January 31, 1993
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 1992 – November 30, 1992
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 1992 – August 31, 1992
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 1992 – February 29, 1992
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
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, 2018 – November 19, 2018	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2015 – October 16, 2015	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	Styrene	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	Toluene	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	Benzene	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
July 1, 2013 – October 28, 2013	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	DICHLOROMETHANE	—	Archived
January 1, 2008 – December 31, 2010	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Archived
January 1, 2008 – December 31, 2010	Monitoring, Regular	Vinyl chloride	—	Archived
January 1, 2008 – December 31, 2010	Monitoring, Regular	1,1-Dichloroethylene	—	Archived
January 1, 2008 – December 31, 2010	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Archived
January 1, 2008 – December 31, 2010	Monitoring, Regular	1,2-Dichloroethane	—	Archived
January 1, 2008 – December 31, 2010	Monitoring, Regular	1,1,1-Trichloroethane	—	Archived
January 1, 2008 – December 31, 2010	Monitoring, Regular	Carbon tetrachloride	—	Archived
January 1, 2008 – December 31, 2010	Monitoring, Regular	1,2-Dichloropropane	—	Archived
January 1, 2008 – December 31, 2010	Monitoring, Regular	Trichloroethylene	—	Archived
January 1, 2008 – December 31, 2010	Monitoring, Regular	1,1,2-Trichloroethane	—	Archived
January 1, 2008 – December 31, 2010	Monitoring, Regular	Tetrachloroethylene	—	Archived
January 1, 2008 – December 31, 2010	Monitoring, Regular	CHLOROBENZENE	—	Archived
January 1, 2008 – December 31, 2010	Monitoring, Regular	Benzene	—	Archived
January 1, 2008 – December 31, 2010	Monitoring, Regular	Toluene	—	Archived
January 1, 2008 – December 31, 2010	Monitoring, Regular	Ethylbenzene	—	Archived
January 1, 2008 – December 31, 2010	Monitoring, Regular	Styrene	—	Archived
January 1, 2008 – December 31, 2010	Monitoring, Regular	p-Dichlorobenzene	—	Archived
January 1, 2008 – December 31, 2010	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Archived
January 1, 2008 – December 31, 2010	Monitoring, Regular	o-Dichlorobenzene	—	Archived
January 1, 2007 – December 31, 2007	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Styrene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Nitrate	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Benzene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Toluene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Ethylbenzene	—	Resolved
June 1, 2005 – June 30, 2005	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
January 1, 2005 – December 31, 2007	Monitoring, Regular	2,4,5-TP	—	Archived
January 1, 2005 – December 31, 2007	Monitoring, Regular	Dinoseb	—	Archived
January 1, 2005 – December 31, 2007	Monitoring, Regular	Picloram	—	Archived
January 1, 2005 – December 31, 2007	Monitoring, Regular	Dalapon	—	Archived
January 1, 2005 – December 31, 2007	Monitoring, Regular	Pentachlorophenol	—	Archived
July 1, 2004 – July 31, 2004	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
November 1, 2003 – November 30, 2003	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
October 1, 2003 – October 31, 2003	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	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	Thallium, Total	—	Archived
January 1, 2002 – December 31, 2010	Monitoring, Regular	Beryllium, 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
February 1, 1999 – February 28, 1999	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
July 1, 1998 – July 31, 1998	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
July 1, 1997 – July 31, 1997	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Archived
June 1, 1997 – June 30, 1997	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
May 1, 1997 – May 31, 1997	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Archived
March 1, 1997 – March 31, 1997	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Archived
November 1, 1996 – November 30, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
September 1, 1996 – September 30, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
June 1, 1996 – June 30, 1996	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Archived
October 1, 1995 – October 31, 1995	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Archived
March 1, 1994 – March 31, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
July 1, 1993 – July 31, 1993	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
January 1, 1993 – January 31, 1993	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
November 1, 1992 – November 30, 1992	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
August 1, 1992 – August 31, 1992	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
February 1, 1992 – February 29, 1992	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived

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

Enforcement actions

November 19, 2018State Compliance achieved1 linked violation
July 16, 2018State Compliance achieved20 linked violations
November 7, 2016State Compliance achieved1 linked violation
October 16, 2015State Compliance achieved1 linked violation
October 28, 2013State Compliance achieved1 linked violation
August 21, 2007State Compliance achieved9 linked violations
June 19, 2007State Compliance achieved50 linked violations
June 19, 2007State Compliance achieved142 linked violations
June 19, 2007State Compliance achieved40 linked violations
January 1, 2007State Compliance achieved4 linked violations
August 31, 1999State Violation/Reminder Notice14 linked violations
January 31, 1993State Violation/Reminder Notice3 linked violations
November 30, 1992State Violation/Reminder Notice1 linked violation
August 31, 1992State Violation/Reminder Notice1 linked violation
June 30, 1992State Violation/Reminder Notice1 linked violation
May 31, 1992State Violation/Reminder Notice1 linked violation

Contact

SOUTH AUBURN WATER ASSOCIATION

Phone not on record

Black Diamond, WA 98010