IONE WATER DEPT

Washington — Community Water System — PWSID: WA5335900

System Information

PWSID	WA5335900
System Name	IONE 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	Ion
ZIP Code	99139
Address	PO Box 498
Organization	IONE WATER DEPT
Phone	—

Population & Service

Population Served	2,395
Service Connections	295

Drinking Water Violations (27)

This water system has 27 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, 2024	Jul 31, 2024	Revised Total Coliform Rule	MON	No	No	—	—	—	Resolved	Jul 31, 2024	Revised Total Coliform Rule
Oct 1, 2013	Oct 31, 2013	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Oct 31, 2013	Total Coliform Rule
Jul 1, 2011	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Sep 19, 2011	Consumer Confidence Rule
Jul 1, 2010	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Nov 9, 2010	Consumer Confidence Rule
Apr 1, 2009	Jun 30, 2009	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Jun 30, 2009	Arsenic Rule
Apr 1, 2009	Jun 30, 2009	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Jun 30, 2009	Arsenic Rule
Apr 1, 2009	Jun 30, 2009	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Jun 30, 2009	Arsenic Rule
Apr 1, 2009	Jun 30, 2009	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Jun 30, 2009	Arsenic Rule
Jan 1, 2008	Mar 31, 2008	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Mar 31, 2008	Arsenic Rule
Jan 1, 2008	Mar 31, 2008	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Mar 31, 2008	Arsenic Rule
Jan 1, 2008	Mar 31, 2008	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Mar 31, 2008	Arsenic Rule
Jan 1, 2008	Mar 31, 2008	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Mar 31, 2008	Arsenic Rule
Jan 1, 2008	Mar 31, 2008	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Mar 31, 2008	Arsenic Rule
Jan 1, 2008	Mar 31, 2008	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Mar 31, 2008	Arsenic Rule
Jan 1, 2008	Mar 31, 2008	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Mar 31, 2008	Arsenic Rule
Jan 1, 2008	Mar 31, 2008	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Mar 31, 2008	Arsenic Rule
Sep 1, 2000	Sep 30, 2000	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Sep 30, 2000	Total Coliform Rule
Sep 1, 2000	Sep 30, 2000	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Sep 30, 2000	Total Coliform Rule
Sep 1, 2000	Sep 30, 2000	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Sep 30, 2000	Total Coliform Rule
Aug 1, 1995	Aug 31, 1995	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Aug 31, 1995	Total Coliform Rule
Feb 1, 1995	Feb 28, 1995	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Feb 28, 1995	Total Coliform Rule
Feb 1, 1994	Feb 28, 1994	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Feb 28, 1994	Total Coliform Rule
Feb 1, 1994	Feb 28, 1994	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Feb 28, 1994	Total Coliform Rule
Aug 1, 1992	Aug 31, 1992	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Aug 31, 1992	Total Coliform Rule
Aug 1, 1992	Aug 31, 1992	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Aug 31, 1992	Total Coliform Rule
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
—	—		—	No	No	—	—	—	—	—	—

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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