248 plants indexed. Showing 28 matching current filters.
Carbonado S T FAC is a secondary wastewater treatment plant in Carbonado, Washington, serving 610 people. It discharges 113.56 megaliters annually and is designed for 378.54 megaliters, operating under U.S. EPA NPDES regulations.
Eatonville STP is a secondary treatment plant serving 2,775 people in Eatonville, Washington. It discharges treated wastewater into the local watershed, ultimately draining to the Pacific Ocean.
ELMA STP is a secondary wastewater treatment plant serving 3,540 people in Elma, Washington. It discharges 791.15 million gallons per year into the local watershed.
Everson S_T Facility is a secondary wastewater treatment plant serving 3,837 people in Everson, Washington. It discharges 454.25 million gallons per year and operates under US EPA NPDES regulations.
Forks Treat STP is a secondary wastewater treatment plant in Forks, Washington, serving approximately 3,120 people. It discharges treated effluent into local waterways within the Olympic Peninsula watershed.
Grand Mound WWTP is a secondary treatment facility serving 2,232 people in Centralia, Washington. It discharges 378.54 megaliters of treated wastewater annually, operating under U.S. EPA NPDES regulations.
McCleary STP is an advanced wastewater treatment plant serving approximately 1,981 residents in McCleary, Washington. It discharges treated effluent into the local watershed, supporting downstream water quality in Grays Harbor County.
RYDERWOOD STP is a secondary wastewater treatment plant in Ryderwood, Washington, serving a small population of 380. It discharges 378.54 cubic meters of treated wastewater daily.
Skagit Co SD2 Big Lake WWTP is a secondary treatment plant serving 1,835 people in Big Lake, Washington. It discharges treated wastewater into the local watershed, ultimately draining to Puget Sound.
South Bend STP CS is a secondary treatment plant serving 1,635 people in Pacific County, Washington. It discharges 632.16 million gallons per year, operating under the US Clean Water Act framework.
South Prairie Area wastewater treatment plant serves 482 people in South Prairie, Washington, with secondary treatment. It discharges treated wastewater into the local watershed, contributing to the Puyallup River basin.
Wilkeson STP is a secondary treatment plant serving 475 residents in Wilkeson, Washington. It discharges treated wastewater into the local watershed, ultimately draining to the Puget Sound.
Birch Bay STP serves 5,500 people in Cottonwood Beach, Washington. The plant operates under the US Clean Water Act NPDES permitting program for municipal wastewater treatment.
Burlington Treatment serves 9,074 people in Burlington, Washington. The plant operates under the US Clean Water Act NPDES permit program, discharging treated wastewater into the Skagit River basin.
Friday Harbor STP serves 2,680 residents in Friday Harbor, Washington. The plant discharges treated wastewater into the surrounding marine environment of the Salish Sea.
Hoquiam Wastewater Treatment Plant serves 8,650 people in Hoquiam, Washington. Located within 50 km of the coast, it discharges into Grays Harbor estuary on the Pacific coast.
Lake Stevens STP serves approximately 28,210 people in Snohomish County, Washington. The plant operates under the U.S. Clean Water Act and discharges treated wastewater into the local watershed.
Long Beach WWTP serves approximately 3,475 residents in Long Beach, Washington. The plant has a designed capacity of 1.00 million gallons per day and is located near the Pacific coast.
LUMMI TRIBE STP serves approximately 3,022 people in Whatcom County, Washington. The plant is located within 50 km of the coast and discharges into the local watershed.
North Bay WWTP in Belfair, Washington, serves a population of 4,175. The plant operates under the U.S. Clean Water Act, with a designed capacity of 1.00 million gallons per day.