COUPEVILLE TOWN OF

Washington — Community Water System — PWSID: WA5315550

System Information

PWSID	WA5315550
System Name	COUPEVILLE TOWN OF
System Type	Community Water System
Water Source	Ground Water
Activity Status	Active
Owner Type	Local
EPA Region	10
Serves School	No
Wholesaler	Yes
First Reported	Feb 7, 1981
Last Reported	Dec 11, 2025

Location & Contact

State	Washington
City	Coupeville
ZIP Code	98239
Address	PO Box 725
Organization	COUPEVILLE TOWN OF
Phone	—

Population & Service

Population Served	4,077
Service Connections	1,478

Drinking Water Violations (102)

This water system has 102 violations recorded in the EPA SDWIS database.

Begin Date	End Date	Contaminant	Category	Health-Based	Major	Measured	Federal MCL	State MCL	Status	Return to Compliance	Rule
Oct 1, 2020	Oct 31, 2020	Revised Total Coliform Rule	MON	No	Yes	—	—	—	Resolved	Oct 31, 2020	Revised Total Coliform Rule
Jul 1, 2015	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Sep 15, 2015	Consumer Confidence Rule
Jan 1, 2009	Dec 31, 2009	Nitrate	MR	No	Yes	—	10 mg/L	—	Archived	Dec 31, 2009	Nitrate Rule
Jan 1, 2009	Dec 31, 2009	Nitrate	MR	No	Yes	—	10 mg/L	—	Archived	Dec 31, 2009	Nitrate Rule
Jan 1, 2008	Dec 31, 2010	Carbofuran	MR	No	Yes	—	0.04 mg/L	—	Archived	Dec 31, 2010	Synthetic Organic Chemicals
Jan 1, 2008	Dec 31, 2010	Aldicarb	MR	No	Yes	—	—	—	Archived	Dec 31, 2010	Synthetic Organic Chemicals
Jan 1, 2008	Dec 31, 2010	OXAMYL	MR	No	Yes	—	0.2 mg/L	—	Archived	Dec 31, 2010	Synthetic Organic Chemicals
Jan 1, 2008	Dec 31, 2010	Aldicarb	MR	No	Yes	—	—	—	Archived	Dec 31, 2010	Synthetic Organic Chemicals
Jan 1, 2008	Dec 31, 2010	Aldicarb sulfone	MR	No	Yes	—	—	—	Archived	Dec 31, 2010	Synthetic Organic Chemicals
Jan 1, 2008	Dec 31, 2010	Aldicarb sulfone	MR	No	Yes	—	—	—	Archived	Dec 31, 2010	Synthetic Organic Chemicals
Jan 1, 2008	Dec 31, 2010	OXAMYL	MR	No	Yes	—	0.2 mg/L	—	Archived	Dec 31, 2010	Synthetic Organic Chemicals
Jan 1, 2008	Dec 31, 2010	Carbofuran	MR	No	Yes	—	0.04 mg/L	—	Archived	Dec 31, 2010	Synthetic Organic Chemicals
Jan 1, 2008	Dec 31, 2010	Aldicarb sulfoxide	MR	No	Yes	—	—	—	Archived	Dec 31, 2010	Synthetic Organic Chemicals
Jan 1, 2008	Dec 31, 2010	Aldicarb sulfoxide	MR	No	Yes	—	—	—	Archived	Dec 31, 2010	Synthetic Organic Chemicals
Jan 1, 2007	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 2007	Lead and Copper Rule
Jan 1, 2007	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 2007	Lead and Copper Rule
Jan 1, 2007	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 2007	Lead and Copper Rule
Jan 1, 2007	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 2007	Lead and Copper Rule
Jan 1, 2007	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 2007	Lead and Copper Rule
Jan 1, 2007	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 2007	Lead and Copper Rule
Jan 1, 2007	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 2007	Lead and Copper Rule
Jan 1, 2007	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 2007	Lead and Copper Rule
Jan 1, 2007	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 2007	Lead and Copper Rule
Jan 1, 2007	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 2007	Lead and Copper Rule
Jan 1, 2005	Dec 31, 2005	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2005	Nitrate Rule
Jan 1, 2005	Dec 31, 2005	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2005	Nitrate Rule
Jan 1, 2005	Dec 31, 2005	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2005	Nitrate Rule
Jan 1, 2005	Dec 31, 2005	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2005	Nitrate Rule
Jan 1, 2005	Dec 31, 2005	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2005	Nitrate Rule
Jan 1, 2005	Dec 31, 2005	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2005	Nitrate Rule
Jan 1, 2005	Dec 31, 2005	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2005	Nitrate Rule
Jan 1, 2002	Dec 31, 2004	1,1,2-Trichloroethane	MR	No	Yes	—	0.005 mg/L	—	Resolved	Dec 31, 2004	Volatile Organic Chemicals
Jan 1, 2002	Dec 31, 2004	Vinyl chloride	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 2004	Volatile Organic Chemicals
Jan 1, 2002	Dec 31, 2004	DICHLOROMETHANE	MR	No	Yes	—	0.005 mg/L	—	Resolved	Dec 31, 2004	Volatile Organic Chemicals
Jan 1, 2002	Dec 31, 2004	Nickel	MR	No	Yes	—	—	—	Resolved	Dec 31, 2004	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2004	Nickel	MR	No	Yes	—	—	—	Resolved	Dec 31, 2004	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2004	Nickel	MR	No	Yes	—	—	—	Resolved	Dec 31, 2004	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2004	1,1,1-Trichloroethane	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2004	Volatile Organic Chemicals
Jan 1, 2002	Dec 31, 2004	Styrene	MR	No	Yes	—	0.1 mg/L	—	Resolved	Dec 31, 2004	Volatile Organic Chemicals
Jan 1, 2002	Dec 31, 2004	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2004	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2004	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2004	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2004	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2004	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2004	Fluoride	MR	No	Yes	—	4.0 mg/L	—	Resolved	Dec 31, 2004	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2004	Barium	MR	No	Yes	—	2 mg/L	—	Resolved	Dec 31, 2004	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2004	Carbon tetrachloride	MR	No	Yes	—	0.005 mg/L	—	Resolved	Dec 31, 2004	Volatile Organic Chemicals
Jan 1, 2002	Dec 31, 2004	Fluoride	MR	No	Yes	—	4.0 mg/L	—	Resolved	Dec 31, 2004	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2004	Fluoride	MR	No	Yes	—	4.0 mg/L	—	Resolved	Dec 31, 2004	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2004	Selenium	MR	No	Yes	—	0.05 mg/L	—	Resolved	Dec 31, 2004	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2004	1,2-Dichloropropane	MR	No	Yes	—	0.005 mg/L	—	Resolved	Dec 31, 2004	Volatile Organic Chemicals
Jan 1, 2002	Dec 31, 2004	Selenium	MR	No	Yes	—	0.05 mg/L	—	Resolved	Dec 31, 2004	Inorganic Chemicals

About This Water System

Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.

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