EPA · discharge permits by state

Discharge permits in Washington

8,573Current permits
82Major dischargers
592Individual permits

A major discharger is one EPA rates as significant on volume, toxicity or the water it reaches; the rest are minors. An individual permit is written for one operation, while general permit coverage applies a statewide permit to a site that qualifies for it.

By what is permitted in Washington

By city

Permits

Major dischargers first. Not every permit in Washington is listed here.

Permit holder	NPDES ID	City	Program	Discharger	Receiving water
ABERDEEN STP	WA0037192	ABERDEEN	Publicly owned treatment works	Major
ALCOA WENATCHEE LLC	WA0000680	MALAGA		Major	Hammond Lake-Columbia River
ANACORTES WWTP	WA0020257	ANACORTES	Publicly owned treatment works	Major
BELLINGHAM STP	WA0023744	BELLINGHAM	Publicly owned treatment works	Major	Squalicum Creek-Frontal Bellingham Bay
BP CHERRY POINT REFINERY	WA0022900	BLAINE		Major	Terrell Creek-Frontal Birch Bay
BREMERTON STP	WA0029289	BREMERTON	Publicly owned treatment works	Major
CENTRALIA STP	WA0020982	CENTRALIA	Publicly owned treatment works	Major	Scammon Creek-Shehalis River
CHAMBERS CREEK STP	WA0039624	UNIVERSITY PLACE	Publicly owned treatment works	Major	City of Tacoma-Frontal Commencement Bay
CHEHALIS WATER RECLAMATION FACILITY	WA0021105	CHEHALIS	Publicly owned treatment works	Major	Dillenbaugh Creek-Chehalis River
CLARK COUNTY	WAR044001	VANCOUVER	Large municipal storm sewer systems	Major	Lake River-Frontal Columbia River
DAWN MINING COMPANY LLC - MIDNITE MINE	WA0025721	WELLPINIT		Major	BLUE CREEK
EDMONDS STP	WA0024058	EDMONDS	Publicly owned treatment works	Major
ELLENSBURG POTW	WA0024341	ELLENSBURG	Publicly owned treatment works	Major	Manastash Creek-Yakima River
ELMA STP	WA0023132	ELMA	Publicly owned treatment works	Major	Newman Creek-Chehalis River
ENUMCLAW STP	WA0020575	ENUMCLAW	Publicly owned treatment works	Major	Boise Creek-White River
EVERETT WATER POLLUTION CONTROL FACILITY	WA0024490	EVERETT	Publicly owned treatment works	Major	Snohomish River-Frontal Possession Sound
GEORGIA-PACIFIC CONSUMER OPERATIONS LLC	WA0000256	CAMAS		Major	Lake River-Frontal Columbia River
GRANDVIEW POTW	WA0052205	GRANDVIEW	Publicly owned treatment works	Major	Byron Ponds-Yakima River
HF SINCLAIR PUGET SOUND REFINING LLC	WA0002941	ANACORTES		Major	Fidalgo Island-Frontal Padilla Bay
HOQUIAM STP	WA0020915	HOQUIAM	Publicly owned treatment works	Major
INLAND EMPIRE PAPER COMPANY	WA0000825	SPOKANE		Major	Chester Creek-Spokane River
INTALCO ALUMINUM CORP FERNDALE	WA0002950	FERNDALE		Major	Terrell Creek-Frontal Birch Bay
KAISER ALUMINUM WASHINGTON, LLC.	WA0000892	SPOKANE		Major	Chester Creek-Spokane River
KENNEWICK POTW	WA0044784	KENNEWICK	Publicly owned treatment works	Major	City of Kennewick-Columbia River
KING COUNTY	WAR044501	SEATTLE	Large municipal storm sewer systems	Major	Shell Creek-Frontal Puget Sound
KING COUNTY BRIGHTWATER WWTP	WA0032247	WOODINVILLE	Publicly owned treatment works	Major
KING COUNTY SOUTH WWTP	WA0029581	RENTON	Publicly owned treatment works	Major	Green River
KING COUNTY WEST POINT WWTP	WA0029181	SEATTLE	Publicly owned treatment works	Major	Lake Washington-Sammamish River
KITSAP COUNTY CENTRAL KITSAP WWTP	WA0030520	POULSBO	Publicly owned treatment works	Major
LAKOTA WWTP	WA0022624	FEDERAL WAY	Publicly owned treatment works	Major
LANXESS CORPORATION	WA0000281	KALAMA		Major	Little Kalama River-Kalama River
LIBERTY LAKE SEWER & WATER DIST	WA0045144	LIBERTY LAKE	Publicly owned treatment works	Major	Liberty Creek-Spokane River
LOTT BUDD INLET WATER RECLAMATION FACILITY	WA0037061	OLYMPIA	Publicly owned treatment works	Major	Ellis Creek-Frontal Budd Inlet
LYNNWOOD STP	WA0024031	EDMONDS	Publicly owned treatment works	Major
MARINE PARK STP	WA0024368	VANCOUVER	Publicly owned treatment works	Major	Hayden Island-Columbia River
MCKINLEY PAPER COMPANY WASHINGTON MILL	WA0002925	PORT ANGELES		Major
MIDWAY SEWER DISTRICT WWTP	WA0020958	DES MOINES	Publicly owned treatment works	Major
MILLER CREEK WWTP	WA0022764	NORMANDY PARK	Publicly owned treatment works	Major
MT VERNON WWTP	WA0024074	MOUNT VERNON	Publicly owned treatment works	Major	Skagit River
NIPPON DYNAWAVE PACKAGING COMPANY LONGVIEW	WA0000124	LONGVIEW		Major	City of Longview-Frontal Columbia River