WESTERN WAHKIAKUM

Washington — Community Water System — PWSID: WA5395167

System Information

PWSID	WA5395167
System Name	WESTERN WAHKIAKUM
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	CATHLAMET
ZIP Code	98612
Address	PO BOX 248
Organization	WESTERN WAHKIAKUM
Phone	—

Population & Service

Population Served	791
Service Connections	362

Drinking Water Violations (64)

This water system has 64 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, 2023	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Oct 4, 2023	Consumer Confidence Rule
Jan 1, 2014	Dec 31, 2014	Total Haloacetic Acids (HAA5)	MR	No	Yes	—	0.060 mg/L	—	Resolved	Dec 31, 2014	Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2014	Dec 31, 2014	TTHM	MR	No	Yes	—	0.080 mg/L	—	Resolved	Dec 31, 2014	Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2007	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 2007	Lead and Copper Rule
Jan 1, 2007	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 2007	Lead and Copper Rule
Jan 1, 2007	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 2007	Lead and Copper Rule
Jan 1, 2007	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 2007	Lead and Copper Rule
Jan 1, 2007	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 2007	Lead and Copper Rule
Jan 1, 2007	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 2007	Lead and Copper Rule
Jan 1, 2007	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 2007	Lead and Copper Rule
Jan 1, 2007	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 2007	Lead and Copper Rule
Jan 1, 2007	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 2007	Lead and Copper Rule
Jan 1, 2005	Dec 31, 2007	Antimony, Total	MR	No	Yes	—	0.006 mg/L	—	Resolved	Dec 31, 2007	Inorganic Chemicals
Jan 1, 2005	Dec 31, 2007	Fluoride	MR	No	Yes	—	4.0 mg/L	—	Resolved	Dec 31, 2007	Inorganic Chemicals
Jan 1, 2005	Dec 31, 2007	Mercury	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 2007	Inorganic Chemicals
Jan 1, 2005	Dec 31, 2007	Mercury	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 2007	Inorganic Chemicals
Jan 1, 2005	Dec 31, 2007	Mercury	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 2007	Inorganic Chemicals
Jan 1, 2005	Dec 31, 2007	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Dec 31, 2007	Arsenic Rule
Jan 1, 2005	Dec 31, 2007	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Dec 31, 2007	Arsenic Rule
Jan 1, 2005	Dec 31, 2007	Arsenic	MR	No	Yes	—	0.010 mg/L	—	Resolved	Dec 31, 2007	Arsenic Rule
Jan 1, 2005	Dec 31, 2007	Chromium	MR	No	Yes	—	0.1 mg/L	—	Resolved	Dec 31, 2007	Inorganic Chemicals
Jan 1, 2005	Dec 31, 2007	Chromium	MR	No	Yes	—	0.1 mg/L	—	Resolved	Dec 31, 2007	Inorganic Chemicals
Jan 1, 2005	Dec 31, 2007	Chromium	MR	No	Yes	—	0.1 mg/L	—	Resolved	Dec 31, 2007	Inorganic Chemicals
Jan 1, 2005	Dec 31, 2007	Thallium, Total	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 2007	Inorganic Chemicals
Jan 1, 2005	Dec 31, 2007	Thallium, Total	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 2007	Inorganic Chemicals
Jan 1, 2005	Dec 31, 2007	Thallium, Total	MR	No	Yes	—	0.002 mg/L	—	Resolved	Dec 31, 2007	Inorganic Chemicals
Jan 1, 2005	Dec 31, 2007	Beryllium, Total	MR	No	Yes	—	0.004 mg/L	—	Resolved	Dec 31, 2007	Inorganic Chemicals
Jan 1, 2005	Dec 31, 2007	Beryllium, Total	MR	No	Yes	—	0.004 mg/L	—	Resolved	Dec 31, 2007	Inorganic Chemicals
Jan 1, 2005	Dec 31, 2007	Beryllium, Total	MR	No	Yes	—	0.004 mg/L	—	Resolved	Dec 31, 2007	Inorganic Chemicals
Jan 1, 2005	Dec 31, 2007	Fluoride	MR	No	Yes	—	4.0 mg/L	—	Resolved	Dec 31, 2007	Inorganic Chemicals
Jan 1, 2005	Dec 31, 2007	Fluoride	MR	No	Yes	—	4.0 mg/L	—	Resolved	Dec 31, 2007	Inorganic Chemicals
Jan 1, 2005	Dec 31, 2007	Antimony, Total	MR	No	Yes	—	0.006 mg/L	—	Resolved	Dec 31, 2007	Inorganic Chemicals
Jan 1, 2005	Dec 31, 2007	Barium	MR	No	Yes	—	2 mg/L	—	Resolved	Dec 31, 2007	Inorganic Chemicals
Jan 1, 2005	Dec 31, 2007	Barium	MR	No	Yes	—	2 mg/L	—	Resolved	Dec 31, 2007	Inorganic Chemicals
Jan 1, 2005	Dec 31, 2007	Barium	MR	No	Yes	—	2 mg/L	—	Resolved	Dec 31, 2007	Inorganic Chemicals
Jan 1, 2005	Dec 31, 2007	Cadmium	MR	No	Yes	—	0.005 mg/L	—	Resolved	Dec 31, 2007	Inorganic Chemicals
Jan 1, 2005	Dec 31, 2007	Cadmium	MR	No	Yes	—	0.005 mg/L	—	Resolved	Dec 31, 2007	Inorganic Chemicals
Jan 1, 2005	Dec 31, 2007	Cadmium	MR	No	Yes	—	0.005 mg/L	—	Resolved	Dec 31, 2007	Inorganic Chemicals
Jan 1, 2005	Dec 31, 2007	Cadmium	MR	No	Yes	—	0.005 mg/L	—	Resolved	Dec 31, 2007	Inorganic Chemicals
Jan 1, 2005	Dec 31, 2007	Cadmium	MR	No	Yes	—	0.005 mg/L	—	Resolved	Dec 31, 2007	Inorganic Chemicals
Jan 1, 2005	Dec 31, 2007	Cadmium	MR	No	Yes	—	0.005 mg/L	—	Resolved	Dec 31, 2007	Inorganic Chemicals
Jan 1, 2005	Dec 31, 2007	Cadmium	MR	No	Yes	—	0.005 mg/L	—	Resolved	Dec 31, 2007	Inorganic Chemicals
Jan 1, 2005	Dec 31, 2007	Cadmium	MR	No	Yes	—	0.005 mg/L	—	Resolved	Dec 31, 2007	Inorganic Chemicals
Jan 1, 2005	Dec 31, 2007	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2007	Inorganic Chemicals
Jan 1, 2005	Dec 31, 2007	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2007	Inorganic Chemicals
Jan 1, 2005	Dec 31, 2007	CYANIDE	MR	No	Yes	—	0.2 mg/L	—	Resolved	Dec 31, 2007	Inorganic Chemicals
Jan 1, 2005	Dec 31, 2007	Nickel	MR	No	Yes	—	—	—	Resolved	Dec 31, 2007	Inorganic Chemicals
Jan 1, 2005	Dec 31, 2007	Nickel	MR	No	Yes	—	—	—	Resolved	Dec 31, 2007	Inorganic Chemicals
Jan 1, 2005	Dec 31, 2007	Nickel	MR	No	Yes	—	—	—	Resolved	Dec 31, 2007	Inorganic Chemicals
Jan 1, 2005	Dec 31, 2007	Selenium	MR	No	Yes	—	0.05 mg/L	—	Resolved	Dec 31, 2007	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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