Okanogan, WA · Okanogan County

DUCK LAKE 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): WA5320200
System type: Community Water System
Population served: 635
Service connections: 190
Ownership: privately owned
Water source: groundwater (wells)

Violation history

Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2014 – February 22, 2017
Resolved
Monitoring, Regular
—
Trichloroethylene
April 1, 2011 – June 30, 2011
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
April 1, 2011 – June 30, 2011
Resolved
Monitoring, Regular
—
Tetrachloroethylene
April 1, 2011 – June 30, 2011
Resolved
Monitoring, Regular
—
CHLOROBENZENE
April 1, 2011 – June 30, 2011
Resolved
Monitoring, Regular
—
Benzene
April 1, 2011 – June 30, 2011
Resolved
Monitoring, Regular
—
Toluene
April 1, 2011 – June 30, 2011
Resolved
Monitoring, Regular
—
Ethylbenzene
April 1, 2011 – June 30, 2011
Resolved
Monitoring, Regular
—
Styrene
April 1, 2011 – June 30, 2011
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
April 1, 2011 – June 30, 2011
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
April 1, 2011 – June 30, 2011
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
April 1, 2011 – June 30, 2011
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
April 1, 2011 – June 30, 2011
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
April 1, 2011 – June 30, 2011
Resolved
Monitoring, Regular
—
Vinyl chloride
April 1, 2011 – June 30, 2011
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
April 1, 2011 – June 30, 2011
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
April 1, 2011 – June 30, 2011
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
April 1, 2011 – June 30, 2011
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
April 1, 2011 – June 30, 2011
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
April 1, 2011 – June 30, 2011
Resolved
Monitoring, Regular
—
Carbon tetrachloride
April 1, 2011 – June 30, 2011
Resolved
Monitoring, Regular
—
OXAMYL
January 1, 2008 – December 31, 2010
Archived
Monitoring, Regular
—
Aldicarb sulfoxide
January 1, 2008 – December 31, 2010
Archived
Monitoring, Regular
—
Aldicarb sulfone
January 1, 2008 – December 31, 2010
Archived
Monitoring, Regular
—
Carbofuran
January 1, 2008 – December 31, 2010
Archived
Monitoring, Regular
—
Aldicarb
January 1, 2008 – December 31, 2010
Archived
Monitoring, Regular
—
OXAMYL
January 1, 2008 – December 31, 2010
Archived
Monitoring, Regular
—
Aldicarb sulfoxide
January 1, 2008 – December 31, 2010
Archived
Monitoring, Regular
—
Aldicarb sulfone
January 1, 2008 – December 31, 2010
Archived
Monitoring, Regular
—
Carbofuran
January 1, 2008 – December 31, 2010
Archived
Monitoring, Regular
—
Aldicarb
January 1, 2008 – December 31, 2010
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 1999 – August 31, 1999
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
May 1, 1997 – May 31, 1997
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 1995 – September 30, 1995
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 1993 – September 30, 1993
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 1993 – August 31, 1993
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 1993 – July 31, 1993
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
June 1, 1992 – June 30, 1992
Archived
Monitoring, Regular
—
Nitrate
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Selenium
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Arsenic
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
January 1, 2014 – February 22, 2017	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
April 1, 2011 – June 30, 2011	Monitoring, Regular	Trichloroethylene	—	Resolved
April 1, 2011 – June 30, 2011	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
April 1, 2011 – June 30, 2011	Monitoring, Regular	Tetrachloroethylene	—	Resolved
April 1, 2011 – June 30, 2011	Monitoring, Regular	CHLOROBENZENE	—	Resolved
April 1, 2011 – June 30, 2011	Monitoring, Regular	Benzene	—	Resolved
April 1, 2011 – June 30, 2011	Monitoring, Regular	Toluene	—	Resolved
April 1, 2011 – June 30, 2011	Monitoring, Regular	Ethylbenzene	—	Resolved
April 1, 2011 – June 30, 2011	Monitoring, Regular	Styrene	—	Resolved
April 1, 2011 – June 30, 2011	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
April 1, 2011 – June 30, 2011	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
April 1, 2011 – June 30, 2011	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
April 1, 2011 – June 30, 2011	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
April 1, 2011 – June 30, 2011	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
April 1, 2011 – June 30, 2011	Monitoring, Regular	Vinyl chloride	—	Resolved
April 1, 2011 – June 30, 2011	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
April 1, 2011 – June 30, 2011	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
April 1, 2011 – June 30, 2011	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
April 1, 2011 – June 30, 2011	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
April 1, 2011 – June 30, 2011	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
April 1, 2011 – June 30, 2011	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	OXAMYL	—	Archived
January 1, 2008 – December 31, 2010	Monitoring, Regular	Aldicarb sulfoxide	—	Archived
January 1, 2008 – December 31, 2010	Monitoring, Regular	Aldicarb sulfone	—	Archived
January 1, 2008 – December 31, 2010	Monitoring, Regular	Carbofuran	—	Archived
January 1, 2008 – December 31, 2010	Monitoring, Regular	Aldicarb	—	Archived
January 1, 2008 – December 31, 2010	Monitoring, Regular	OXAMYL	—	Archived
January 1, 2008 – December 31, 2010	Monitoring, Regular	Aldicarb sulfoxide	—	Archived
January 1, 2008 – December 31, 2010	Monitoring, Regular	Aldicarb sulfone	—	Archived
January 1, 2008 – December 31, 2010	Monitoring, Regular	Carbofuran	—	Archived
January 1, 2008 – December 31, 2010	Monitoring, Regular	Aldicarb	—	Archived
August 1, 1999 – August 31, 1999	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
May 1, 1997 – May 31, 1997	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
September 1, 1995 – September 30, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
September 1, 1993 – September 30, 1993	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
August 1, 1993 – August 31, 1993	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
July 1, 1993 – July 31, 1993	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
June 1, 1992 – June 30, 1992	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Nitrate	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Selenium	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Arsenic	—	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

February 22, 2017State Compliance achieved1 linked violation
August 16, 2011State Compliance achieved20 linked violations
May 31, 1992State Violation/Reminder Notice2 linked violations
February 29, 1992State Violation/Reminder Notice1 linked violation
October 31, 1991State Violation/Reminder Notice1 linked violation

Contact

DUCK LAKE WATER ASSOCIATION

Phone not on record

Okanogan, WA 98840-8221