SUMAS WATER DEPT

Washington — Community Water System — PWSID: WA5384870

System Information

PWSID	WA5384870
System Name	SUMAS WATER DEPT
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	Sumas
ZIP Code	98295
Address	PO Box 9
Organization	SUMAS WATER DEPT
Phone	—

Population & Service

Population Served	1,740
Service Connections	838

Drinking Water Violations (77)

This water system has 77 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
Jul 1, 2013	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Oct 21, 2013	Consumer Confidence Rule
Jul 1, 2011	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Sep 1, 2011	Consumer Confidence Rule
Jan 1, 2008	Dec 31, 2010	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2010	Inorganic Chemicals
Jan 1, 2008	Dec 31, 2010	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Dec 31, 2010	Arsenic Rule
Jan 1, 2008	Dec 31, 2010	Fluoride	MR	No	Yes	—	4.0 mg/L	—	Resolved	Dec 31, 2010	Inorganic Chemicals
Jan 1, 2008	Dec 31, 2010	Mercury	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 2010	Inorganic Chemicals
Jan 1, 2008	Dec 31, 2010	Selenium	MR	No	Yes	—	0.05 mg/L	—	Resolved	Dec 31, 2010	Inorganic Chemicals
Jan 1, 2008	Dec 31, 2010	Nickel	MR	No	Yes	—	—	—	Resolved	Dec 31, 2010	Inorganic Chemicals
Jan 1, 2008	Dec 31, 2010	Barium	MR	No	Yes	—	2 mg/L	—	Resolved	Dec 31, 2010	Inorganic Chemicals
Jan 1, 2008	Dec 31, 2010	Chromium	MR	No	Yes	—	0.1 mg/L	—	Resolved	Dec 31, 2010	Inorganic Chemicals
Jan 1, 2008	Dec 31, 2010	Beryllium, Total	MR	No	Yes	—	0.004 mg/L	—	Resolved	Dec 31, 2010	Inorganic Chemicals
Jan 1, 2008	Dec 31, 2010	Cadmium	MR	No	Yes	—	0.005 mg/L	—	Resolved	Dec 31, 2010	Inorganic Chemicals
Jan 1, 2008	Dec 31, 2010	Antimony, Total	MR	No	Yes	—	0.006 mg/L	—	Resolved	Dec 31, 2010	Inorganic Chemicals
Jan 1, 2008	Dec 31, 2010	Thallium, Total	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 2010	Inorganic Chemicals
Jan 1, 2007	Dec 31, 2007	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2007	Nitrate Rule
Jan 1, 2007	Dec 31, 2007	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2007	Nitrate Rule
Jan 1, 2007	Dec 31, 2007	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2007	Nitrate Rule
Jan 1, 2007	Dec 31, 2007	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2007	Nitrate Rule
Jan 1, 2007	Dec 31, 2007	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2007	Nitrate Rule
Jan 1, 2007	Dec 31, 2007	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2007	Nitrate Rule
Aug 1, 2006	Aug 31, 2006	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Aug 31, 2006	Total Coliform Rule
Jul 1, 2006	Jul 31, 2006	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Jul 31, 2006	Total Coliform Rule
Jun 1, 2006	Jun 30, 2006	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Jun 30, 2006	Total Coliform 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
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
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
Jan 1, 2006	Dec 31, 2006	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2006	Nitrate Rule
Jan 1, 2005	Dec 31, 2007	Diquat	MR	No	Yes	—	0.02 mg/L	—	Resolved	Dec 31, 2007	Synthetic Organic Chemicals
Jan 1, 2005	Dec 31, 2007	Diquat	MR	No	Yes	—	0.02 mg/L	—	Resolved	Dec 31, 2007	Synthetic Organic Chemicals
Jan 1, 2005	Dec 31, 2007	ETHYLENE DIBROMIDE	MR	No	Yes	—	0.00005 mg/L	—	Resolved	Dec 31, 2007	Synthetic Organic Chemicals
Jan 1, 2005	Dec 31, 2007	ETHYLENE DIBROMIDE	MR	No	Yes	—	0.00005 mg/L	—	Resolved	Dec 31, 2007	Synthetic Organic Chemicals
Jan 1, 2005	Dec 31, 2007	ETHYLENE DIBROMIDE	MR	No	Yes	—	0.00005 mg/L	—	Resolved	Dec 31, 2007	Synthetic Organic Chemicals
Jan 1, 2005	Dec 31, 2007	ETHYLENE DIBROMIDE	MR	No	Yes	—	0.00005 mg/L	—	Resolved	Dec 31, 2007	Synthetic Organic 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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