Is WINLOCK CITY OF required to publish a Consumer Confidence Report?

Yes. WINLOCK CITY OF is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is WINLOCK CITY OF’s next Consumer Confidence Report due?

WINLOCK CITY OF’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

WINLOCK, WA · Lewis County

WINLOCK CITY OF Water System

Consumer Confidence Report status

WINLOCK CITY OF must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for WINLOCK CITY OF.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 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): WA5397500
System type: Community Water System
Population served: 3,502
Service connections: 1,040
Ownership: local government
Water source: groundwater (wells)

WINLOCK CITY OF is one of 112 community water systems in Washington in the 3,301 to 10,000 people size category, serving 3,502 people from groundwater.

As of August 1, 2026, its federal record holds 138 entries between 1979 and 2012, all of which EPA lists as closed. Nothing has been added since 2012.

Of the 138, 135 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves volatile organic chemicals, synthetic organic chemicals, and inorganic chemicals.

Violation history

Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2012 – September 25, 2012
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2011 – November 2, 2011
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 2010 – June 30, 2010
Resolved
Monitoring, Regular
—
Aldicarb sulfone
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
Aldicarb sulfoxide
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
OXAMYL
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
Chlordane
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
Pentachlorophenol
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
Benzo(a)pyrene
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
HEXACHLOROBENZENE
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
Heptachlor epoxide
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
Heptachlor
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
LASSO
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
Atrazine
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
Hexachlorocyclopentadiene
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
Simazine
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
Toxaphene
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
Methoxychlor
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
BHC-GAMMA
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
Endrin
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
Pentachlorophenol
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
2,4,5-TP
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
Dinoseb
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
Picloram
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
Dalapon
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
Styrene
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
Ethylbenzene
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
Toluene
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
Benzene
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
CHLOROBENZENE
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
Tetrachloroethylene
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
1,1,2-Trichloroethane
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
Trichloroethylene
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
1,2-Dichloropropane
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
Carbon tetrachloride
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
1,1,1-Trichloroethane
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
1,2-Dichloroethane
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
trans-1,2-Dichloroethylene
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
1,1-Dichloroethylene
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
Vinyl chloride
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
p-Dichlorobenzene
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
o-Dichlorobenzene
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
DICHLOROMETHANE
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
1,2,4-Trichlorobenzene
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
cis-1,2-Dichloroethylene
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
Aldicarb
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
Carbofuran
April 1, 2008 – June 30, 2008
Archived
Monitoring, Regular
—
Benzene
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Toluene
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Styrene
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
Diquat
October 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Diquat
July 1, 2006 – September 30, 2006
Archived
Monitoring, Regular
—
Vinyl chloride
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2006 – December 31, 2006
Archived
Monitoring, Regular
—
Nitrate
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Styrene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Toluene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Benzene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Carbon tetrachloride
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
—
trans-1,2-Dichloroethylene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2005 – December 31, 2007
Archived
Monitoring, Regular
—
Thallium, Total
January 1, 2005 – December 31, 2007
Archived
Monitoring, Regular
—
Beryllium, Total
January 1, 2005 – December 31, 2007
Archived
Monitoring, Regular
—
Antimony, Total
January 1, 2005 – December 31, 2007
Archived
Monitoring, Regular
—
Selenium
January 1, 2005 – December 31, 2007
Archived
Monitoring, Regular
—
Nickel
January 1, 2005 – December 31, 2007
Archived
Monitoring, Regular
—
Mercury
January 1, 2005 – December 31, 2007
Archived
Monitoring, Regular
—
Fluoride
January 1, 2005 – December 31, 2007
Archived
Monitoring, Regular
—
CYANIDE
January 1, 2005 – December 31, 2007
Archived
Monitoring, Regular
—
Chromium
January 1, 2005 – December 31, 2007
Archived
Monitoring, Regular
—
Cadmium
January 1, 2005 – December 31, 2007
Archived
Monitoring, Regular
—
Barium
January 1, 2005 – December 31, 2007
Archived
Monitoring, Regular
—
Arsenic
January 1, 2005 – December 31, 2007
Archived
Monitoring, Regular
—
Styrene
January 1, 2005 – December 31, 2007
Archived
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2005 – December 31, 2007
Archived
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2005 – December 31, 2007
Archived
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2005 – December 31, 2007
Archived
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2005 – December 31, 2007
Archived
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2005 – December 31, 2007
Archived
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2005 – December 31, 2007
Archived
Monitoring, Regular
—
Vinyl chloride
January 1, 2005 – December 31, 2007
Archived
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2005 – December 31, 2007
Archived
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2005 – December 31, 2007
Archived
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2005 – December 31, 2007
Archived
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2005 – December 31, 2007
Archived
Monitoring, Regular
—
Trichloroethylene
January 1, 2005 – December 31, 2007
Archived
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2005 – December 31, 2007
Archived
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2005 – December 31, 2007
Archived
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2005 – December 31, 2007
Archived
Monitoring, Regular
—
Benzene
January 1, 2005 – December 31, 2007
Archived
Monitoring, Regular
—
Toluene
January 1, 2005 – December 31, 2007
Archived
Monitoring, Regular
—
Ethylbenzene
January 1, 2005 – December 31, 2007
Archived
Monitoring, Regular
—
Nitrate
January 1, 2003 – December 31, 2003
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 1997 – September 30, 1997
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
December 1, 1991 – December 31, 1991
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
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
Monitoring, Regular
—
Selenium
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Nitrate
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, 2012 – September 25, 2012	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2011 – November 2, 2011	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
June 1, 2010 – June 30, 2010	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
April 1, 2008 – June 30, 2008	Monitoring, Regular	Aldicarb sulfone	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	Aldicarb sulfoxide	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	OXAMYL	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	Chlordane	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	Pentachlorophenol	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	Benzo(a)pyrene	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	HEXACHLOROBENZENE	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	Heptachlor epoxide	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	Heptachlor	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	LASSO	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	Atrazine	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	Hexachlorocyclopentadiene	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	Simazine	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	Toxaphene	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	Methoxychlor	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	BHC-GAMMA	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	Endrin	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	Pentachlorophenol	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	2,4,5-TP	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	Dinoseb	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	Picloram	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	Dalapon	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	Styrene	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	Ethylbenzene	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	Toluene	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	Benzene	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	CHLOROBENZENE	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	Tetrachloroethylene	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	1,1,2-Trichloroethane	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	Trichloroethylene	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	1,2-Dichloropropane	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	Carbon tetrachloride	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	1,1,1-Trichloroethane	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	1,2-Dichloroethane	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	1,1-Dichloroethylene	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	Vinyl chloride	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	p-Dichlorobenzene	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	o-Dichlorobenzene	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	DICHLOROMETHANE	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	Aldicarb	—	Archived
April 1, 2008 – June 30, 2008	Monitoring, Regular	Carbofuran	—	Archived
January 1, 2008 – December 31, 2010	Monitoring, Regular	Benzene	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	Toluene	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	Styrene	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	Nitrate	—	Archived
October 1, 2006 – December 31, 2006	Monitoring, Regular	Diquat	—	Resolved
July 1, 2006 – September 30, 2006	Monitoring, Regular	Diquat	—	Archived
January 1, 2006 – December 31, 2006	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Nitrate	—	Archived
January 1, 2006 – December 31, 2006	Monitoring, Regular	Nitrate	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Styrene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Toluene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Benzene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Carbon tetrachloride	—	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	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Archived
January 1, 2005 – December 31, 2007	Monitoring, Regular	Thallium, Total	—	Archived
January 1, 2005 – December 31, 2007	Monitoring, Regular	Beryllium, Total	—	Archived
January 1, 2005 – December 31, 2007	Monitoring, Regular	Antimony, Total	—	Archived
January 1, 2005 – December 31, 2007	Monitoring, Regular	Selenium	—	Archived
January 1, 2005 – December 31, 2007	Monitoring, Regular	Nickel	—	Archived
January 1, 2005 – December 31, 2007	Monitoring, Regular	Mercury	—	Archived
January 1, 2005 – December 31, 2007	Monitoring, Regular	Fluoride	—	Archived
January 1, 2005 – December 31, 2007	Monitoring, Regular	CYANIDE	—	Archived
January 1, 2005 – December 31, 2007	Monitoring, Regular	Chromium	—	Archived
January 1, 2005 – December 31, 2007	Monitoring, Regular	Cadmium	—	Archived
January 1, 2005 – December 31, 2007	Monitoring, Regular	Barium	—	Archived
January 1, 2005 – December 31, 2007	Monitoring, Regular	Arsenic	—	Archived
January 1, 2005 – December 31, 2007	Monitoring, Regular	Styrene	—	Archived
January 1, 2005 – December 31, 2007	Monitoring, Regular	1,2-Dichloropropane	—	Archived
January 1, 2005 – December 31, 2007	Monitoring, Regular	Carbon tetrachloride	—	Archived
January 1, 2005 – December 31, 2007	Monitoring, Regular	1,1,1-Trichloroethane	—	Archived
January 1, 2005 – December 31, 2007	Monitoring, Regular	1,2-Dichloroethane	—	Archived
January 1, 2005 – December 31, 2007	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Archived
January 1, 2005 – December 31, 2007	Monitoring, Regular	1,1-Dichloroethylene	—	Archived
January 1, 2005 – December 31, 2007	Monitoring, Regular	Vinyl chloride	—	Archived
January 1, 2005 – December 31, 2007	Monitoring, Regular	p-Dichlorobenzene	—	Archived
January 1, 2005 – December 31, 2007	Monitoring, Regular	o-Dichlorobenzene	—	Archived
January 1, 2005 – December 31, 2007	Monitoring, Regular	DICHLOROMETHANE	—	Archived
January 1, 2005 – December 31, 2007	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Archived
January 1, 2005 – December 31, 2007	Monitoring, Regular	Trichloroethylene	—	Archived
January 1, 2005 – December 31, 2007	Monitoring, Regular	1,1,2-Trichloroethane	—	Archived
January 1, 2005 – December 31, 2007	Monitoring, Regular	Tetrachloroethylene	—	Archived
January 1, 2005 – December 31, 2007	Monitoring, Regular	CHLOROBENZENE	—	Archived
January 1, 2005 – December 31, 2007	Monitoring, Regular	Benzene	—	Archived
January 1, 2005 – December 31, 2007	Monitoring, Regular	Toluene	—	Archived
January 1, 2005 – December 31, 2007	Monitoring, Regular	Ethylbenzene	—	Archived
January 1, 2003 – December 31, 2003	Monitoring, Regular	Nitrate	—	Resolved
September 1, 1997 – September 30, 1997	Monitoring, Routine Major (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	Gross Alpha, Excl. Radon and U	—	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
October 1, 1979 – October 31, 1979	Monitoring, Regular	Selenium	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Nitrate	—	Archived

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

Enforcement actions

September 16, 2014State Compliance achieved1 linked violation
September 25, 2012State Compliance achieved1 linked violation
November 2, 2011State Compliance achieved1 linked violation
June 9, 2011State Compliance achieved20 linked violations
July 31, 2010State Compliance achieved1 linked violation
April 27, 2007State Compliance achieved137 linked violations
April 27, 2007State Compliance achieved27 linked violations
January 1, 2007State Compliance achieved1 linked violation
January 1, 2007State Compliance achieved5 linked violations
January 1, 2007State Compliance achieved1 linked violation
August 23, 1994Federal issued Formal Notice of Violation1 linked violation
December 31, 1991State Public Notification received8 linked violations
December 31, 1991State Public Notification requested9 linked violations
December 31, 1991State Violation/Reminder Notice1 linked violation
August 31, 1991State Site Visit for enforcement purposes2 linked violations

Common questions

Is WINLOCK CITY OF required to publish a Consumer Confidence Report?: Yes. WINLOCK CITY OF is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is WINLOCK CITY OF’s next Consumer Confidence Report due?: WINLOCK CITY OF’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does WINLOCK CITY OF have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for WINLOCK CITY OF.
What is a Consumer Confidence Report?: A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

WINLOCK CITY OF

Phone not on record

WINLOCK, WA 98596