COULEE CITY TOWN OF

Washington — Community Water System — PWSID: WA5315300

System Information

PWSID	WA5315300
System Name	COULEE CITY TOWN OF
System Type	Community Water System
Water Source	Ground Water
Activity Status	Active
Owner Type	Local
EPA Region	10
Serves School	No
Wholesaler	No
First Reported	Feb 7, 1981
Last Reported	Dec 11, 2025

Location & Contact

State	Washington
City	Coulee City
ZIP Code	99115
Address	PO Box 398
Organization	COULEE CITY TOWN OF
Phone	—

Population & Service

Population Served	944
Service Connections	369

Drinking Water Violations (26)

This water system has 26 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, 2025	Jan 31, 2025	Revised Total Coliform Rule	MON	No	Yes	—	—	—	Resolved	Jan 31, 2025	Revised Total Coliform Rule
Jun 1, 2022	Jun 30, 2022	Revised Total Coliform Rule	MON	No	Yes	—	—	—	Resolved	Jun 30, 2022	Revised Total Coliform Rule
May 1, 2022	May 31, 2022	Revised Total Coliform Rule	MON	No	Yes	—	—	—	Resolved	May 31, 2022	Revised Total Coliform Rule
Apr 1, 2022	Apr 30, 2022	Revised Total Coliform Rule	MON	No	Yes	—	—	—	Resolved	Apr 30, 2022	Revised Total Coliform Rule
Jan 1, 2022	Dec 31, 2022	Total Haloacetic Acids (HAA5)	MR	No	Yes	—	0.060 mg/L	—	Resolved	Dec 31, 2022	Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2022	Dec 31, 2022	TTHM	MR	No	Yes	—	0.080 mg/L	—	Resolved	Dec 31, 2022	Stage 2 Disinfectants and Disinfection Byproducts Rule
May 1, 2011	May 31, 2011	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	May 31, 2011	Total Coliform Rule
Jul 1, 2010	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Oct 13, 2010	Consumer Confidence Rule
Dec 1, 1995	Dec 31, 1995	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Dec 31, 1995	Total Coliform Rule
Nov 1, 1995	Nov 30, 1995	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Nov 30, 1995	Total Coliform Rule
Oct 19, 1994	Nov 18, 1994	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Nov 18, 1994	Total Coliform Rule
Aug 1, 1993	Aug 31, 1993	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Aug 31, 1993	Total Coliform Rule
Aug 1, 1993	Aug 31, 1993	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Aug 31, 1993	Total Coliform Rule
Feb 1, 1993	Feb 28, 1993	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Feb 28, 1993	Total Coliform Rule
Feb 1, 1993	Feb 28, 1993	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Feb 28, 1993	Total Coliform Rule
Jan 1, 1993	Jan 31, 1993	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Jan 31, 1993	Total Coliform Rule
Jan 1, 1993	Jan 31, 1993	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Jan 31, 1993	Total Coliform Rule
Nov 1, 1992	Nov 30, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Nov 30, 1992	Total Coliform Rule
Nov 1, 1992	Nov 30, 1992	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Archived	Nov 30, 1992	Total Coliform Rule
Sep 1, 1992	Sep 30, 1992	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Sep 30, 1992	Total Coliform Rule
Sep 1, 1992	Sep 30, 1992	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Sep 30, 1992	Total Coliform Rule
Aug 1, 1992	Aug 31, 1992	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Aug 31, 1992	Total Coliform Rule
Aug 1, 1992	Aug 31, 1992	Coliform (TCR)	MR	No	No	—	5% of samples	—	Archived	Aug 31, 1992	Total Coliform Rule
Feb 1, 1992	Feb 29, 1992	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Feb 29, 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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