SYLVIA LAKE

Washington — Community Water System — PWSID: WA5386710

System Information

PWSID	WA5386710
System Name	SYLVIA LAKE
System Type	Community Water System
Water Source	Ground Water
Activity Status	Inactive
Owner Type	Private
EPA Region	10
Serves School	No
Wholesaler	No
First Reported	Feb 7, 1981
Last Reported	Dec 11, 2025

Location & Contact

State	Washington
City	Gig Harbor
ZIP Code	98335-0336
Address	Northwest Region
Organization	SYLVIA LAKE
Phone	—

Population & Service

Population Served	358
Service Connections	139

Drinking Water Violations (31)

This water system has 31 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
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	Aldicarb sulfoxide	MR	No	Yes	—	—	—	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	OXAMYL	MR	No	Yes	—	0.2 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	Carbofuran	MR	No	Yes	—	0.04 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, 2006	Dec 31, 2006	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2006	Nitrate Rule
Jan 1, 2006	Dec 31, 2006	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2006	Nitrate Rule
Jan 1, 2006	Dec 31, 2006	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2006	Nitrate Rule
Jan 1, 2006	Dec 31, 2006	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2006	Nitrate Rule
Jan 1, 2006	Dec 31, 2006	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2006	Nitrate Rule
Jan 1, 2006	Dec 31, 2006	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2006	Nitrate Rule
Jan 1, 2006	Dec 31, 2006	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2006	Nitrate Rule
Jul 1, 2005	Jul 31, 2005	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Jul 31, 2005	Total Coliform Rule
Oct 1, 2004	Oct 31, 2004	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Oct 31, 2004	Total Coliform Rule
Jun 1, 1998	Jun 30, 1998	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Jun 30, 1998	Total Coliform Rule
Jun 1, 1998	Jun 30, 1998	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Jun 30, 1998	Total Coliform Rule
Jun 1, 1998	Jun 30, 1998	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Jun 30, 1998	Total Coliform Rule
Oct 1, 1995	Oct 31, 1995	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Oct 31, 1995	Total Coliform Rule
Oct 1, 1979	Oct 31, 1979	Fluoride	MR	No	No	—	4.0 mg/L	—	Archived	Oct 31, 1979	Inorganic Chemicals
Oct 1, 1979	Oct 31, 1979	Mercury	MR	No	No	—	0.002 mg/L	—	Archived	Oct 31, 1979	Inorganic Chemicals
Oct 1, 1979	Oct 31, 1979	Nitrate	MR	No	No	—	10 mg/L	—	Archived	Oct 31, 1979	Nitrate Rule
Oct 1, 1979	Oct 31, 1979	Arsenic	MR	No	No	—	0.010 mg/L	—	Archived	Oct 31, 1979	Arsenic Rule
Oct 1, 1979	Oct 31, 1979	Cadmium	MR	No	No	—	0.005 mg/L	—	Archived	Oct 31, 1979	Inorganic Chemicals
Oct 1, 1979	Oct 31, 1979	Gross Alpha, Excl. Radon and U	MR	No	No	—	15 pCi/L	—	Archived	Oct 31, 1979	Radionuclides and Revised Rad Rule
Oct 1, 1979	Oct 31, 1979	Barium	MR	No	No	—	2 mg/L	—	Archived	Oct 31, 1979	Inorganic Chemicals
Oct 1, 1979	Oct 31, 1979	Selenium	MR	No	No	—	0.05 mg/L	—	Archived	Oct 31, 1979	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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