WEST UNION ELEM SD 1

Oregon — Non-Transient Non-Community — PWSID: OR4193774

System Information

PWSID	OR4193774
System Name	WEST UNION ELEM SD 1
System Type	Non-Transient Non-Community
Water Source	Ground Water
Activity Status	Active
Owner Type	Local
EPA Region	10
Serves School	Yes
Wholesaler	No
First Reported	Jan 12, 1983
Last Reported	Dec 23, 2025

Location & Contact

State	Oregon
City	HILLSBORO
ZIP Code	97124
Address	7705 NE JACOBSEN ST
Organization	WEST UNION ELEM SD 1
Phone	971-246-1045

Population & Service

Population Served	350
Service Connections	1

Drinking Water Violations (109)

This water system has 109 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
May 1, 2016	May 31, 2016	Revised Total Coliform Rule	MON	No	Yes	—	—	—	Archived	May 31, 2016	Revised Total Coliform Rule
Apr 1, 2016	Apr 30, 2016	Revised Total Coliform Rule	MON	No	Yes	—	—	—	Archived	Apr 30, 2016	Revised Total Coliform Rule
Jul 1, 2013	Sep 30, 2013	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Sep 30, 2013	Total Coliform Rule
Apr 1, 2013	Jun 30, 2013	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Jun 30, 2013	Total Coliform Rule
Jan 1, 2012	Dec 31, 2012	COLIPHAGE	MR	No	Yes	—	—	—	Resolved	Dec 31, 2012	Ground Water Rule
Jan 1, 2012	Dec 31, 2012	COLIPHAGE	MR	No	Yes	—	—	—	Resolved	Dec 31, 2012	Ground Water Rule
Apr 1, 2011	Jun 30, 2011	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Jun 30, 2011	Total Coliform Rule
Apr 1, 2011	Jun 30, 2011	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Jun 30, 2011	Total Coliform Rule
Jan 1, 2010	Dec 31, 2010	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2010	Nitrate Rule
Jan 1, 2010	Dec 31, 2010	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2010	Nitrate Rule
Jan 1, 2010	Mar 31, 2010	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Mar 31, 2010	Total Coliform Rule
Jan 1, 2010	Mar 31, 2010	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Mar 31, 2010	Total Coliform Rule
Feb 1, 2007	Feb 28, 2007	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Feb 28, 2007	Total Coliform Rule
Jan 1, 2007	Mar 31, 2007	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Mar 31, 2007	Total Coliform Rule
Jan 1, 2004	Dec 31, 2004	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2004	Nitrate Rule
Jan 1, 2003	Mar 31, 2003	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Mar 31, 2003	Total Coliform Rule
Jan 1, 2002	Dec 31, 2004	Chlordane	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 2004	Synthetic Organic Chemicals
Jan 1, 2002	Dec 31, 2010	Mercury	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 2010	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2010	Mercury	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 2010	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2010	Nickel	MR	No	Yes	—	—	—	Resolved	Dec 31, 2010	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2010	Nickel	MR	No	Yes	—	—	—	Resolved	Dec 31, 2010	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2010	Antimony, Total	MR	No	Yes	—	0.006 mg/L	—	Resolved	Dec 31, 2010	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2010	Antimony, Total	MR	No	Yes	—	0.006 mg/L	—	Resolved	Dec 31, 2010	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2010	Antimony, Total	MR	No	Yes	—	0.006 mg/L	—	Resolved	Dec 31, 2010	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2010	Thallium, Total	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 2010	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2010	Thallium, Total	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 2010	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2010	Thallium, Total	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 2010	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2010	Beryllium, Total	MR	No	Yes	—	0.004 mg/L	—	Resolved	Dec 31, 2010	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2004	1,2-DIBROMO-3-CHLOROPROPANE	MR	No	Yes	—	0.0002 mg/L	—	Resolved	Dec 31, 2004	Synthetic Organic Chemicals
Jan 1, 2002	Dec 31, 2010	Cadmium	MR	No	Yes	—	0.005 mg/L	—	Resolved	Dec 31, 2010	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2010	Cadmium	MR	No	Yes	—	0.005 mg/L	—	Resolved	Dec 31, 2010	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2010	Cadmium	MR	No	Yes	—	0.005 mg/L	—	Resolved	Dec 31, 2010	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2004	cis-1,2-Dichloroethylene	MR	No	Yes	—	0.07 mg/L	—	Resolved	Dec 31, 2004	Volatile Organic Chemicals
Jan 1, 2002	Dec 31, 2010	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2010	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2010	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2010	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2010	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2010	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2004	Heptachlor	MR	No	Yes	—	0.0004 mg/L	—	Resolved	Dec 31, 2004	Synthetic Organic Chemicals
Jan 1, 2002	Dec 31, 2004	Heptachlor epoxide	MR	No	Yes	—	0.0002 mg/L	—	Resolved	Dec 31, 2004	Synthetic Organic 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	LASSO	MR	No	Yes	—	—	—	Resolved	Dec 31, 2004	Synthetic Organic Chemicals
Jan 1, 2002	Dec 31, 2004	ETHYLENE DIBROMIDE	MR	No	Yes	—	0.00005 mg/L	—	Resolved	Dec 31, 2004	Synthetic Organic Chemicals
Jan 1, 2002	Dec 31, 2010	Beryllium, Total	MR	No	Yes	—	0.004 mg/L	—	Resolved	Dec 31, 2010	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2004	Endrin	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 2004	Synthetic Organic Chemicals
Jan 1, 2002	Dec 31, 2010	Nickel	MR	No	Yes	—	—	—	Resolved	Dec 31, 2010	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2004	Di(2-ethylhexyl) phthalate	MR	No	Yes	—	0.006 mg/L	—	Resolved	Dec 31, 2004	Synthetic Organic Chemicals
Jan 1, 2002	Dec 31, 2004	Picloram	MR	No	Yes	—	0.5 mg/L	—	Resolved	Dec 31, 2004	Synthetic Organic Chemicals
Jan 1, 2002	Dec 31, 2010	Selenium	MR	No	Yes	—	0.05 mg/L	—	Resolved	Dec 31, 2010	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2004	HEXACHLOROBENZENE	MR	No	Yes	—	0.001 mg/L	—	Resolved	Dec 31, 2004	Synthetic Organic Chemicals
Jan 1, 2002	Dec 31, 2010	Selenium	MR	No	Yes	—	0.05 mg/L	—	Resolved	Dec 31, 2010	Inorganic Chemicals
Jan 1, 2002	Dec 31, 2010	Beryllium, Total	MR	No	Yes	—	0.004 mg/L	—	Resolved	Dec 31, 2010	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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