248 plants indexed. Showing 137 matching current filters.
Aberdeen STP serves approximately 23,515 residents in Aberdeen, Washington. The plant operates under the U.S. Clean Water Act framework, discharging treated wastewater into the Grays Harbor estuary.
Airway Heights WWTP serves 6,220 people in Washington, USA. The plant discharges treated wastewater into local waterways under EPA NPDES regulations.
Alderwood Water and Wastewater Dist serves over 131,000 people in Snohomish County, Washington. The plant is located near Puget Sound and operates under US EPA and Washington state regulations.
Anacortes STP serves approximately 17,644 residents in Anacortes, Washington. The plant is located within 50 km of the coast and discharges into the local watershed.
Arlington Treatment serves approximately 17,930 residents in Arlington, Washington. The plant operates under U.S. EPA and Washington state regulations, discharging treated wastewater into the Stillaguamish River watershed.
Bellingham Post Point TP serves approximately 90,453 people in Bellingham, Washington. The plant is located near the coast and operates under U. S. EPA NPDES permitting.
Benton City S_T FAC is a municipal wastewater treatment plant in Benton City, Washington, serving approximately 3,145 people. It operates under the US Clean Water Act framework with state-level NPDES permitting.
Big Gulch WWTP serves Mukilteo, Washington, treating wastewater for approximately 27,656 residents. The plant operates under U.S. EPA and Washington State regulations, discharging treated effluent into the Puget Sound ecosystem.
Bingen POTW serves approximately 2,955 residents in Bingen, Washington. The plant operates under the U.S. Clean Water Act, with NPDES permits regulating its discharge to protect local water quality.
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.
Blaine STP serves approximately 4,705 residents in Blaine, Washington. Located near Semiahmoo Spit, the plant discharges into the Salish Sea via local waterways.
Bremerton West Plant STP serves approximately 48,000 people in Bremerton, Washington. The facility is located within 50 km of the coast and discharges treated wastewater into the Puget Sound watershed.
Brightwater Treatment Plant in Maltby, Washington serves approximately 597,000 people. It is a major facility in the Puget Sound region, operating under U. S. EPA and Washington State regulations.
Buckley WWTF serves approximately 4,345 residents in Buckley, Washington. The plant operates under U.S. EPA and Washington state regulations 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.
Camas Wastewater Treatment Plant serves approximately 19,620 residents in Camas, Washington. The facility discharges treated effluent into the Columbia River, supporting downstream water quality in the Pacific Northwest.
Carnation Treatment is a municipal wastewater facility serving 1,780 people in Carnation, Washington. It operates under U.S. EPA and Washington State regulations, discharging treated effluent to the Snoqualmie River basin.
Cashmere STP Facility serves 3,075 people in Cashmere, Washington. The plant discharges treated wastewater into the Wenatchee River watershed, which flows to the Columbia River.
Castle Rock WWTP serves 2,130 people in Castle Rock, Washington. The plant operates under the US Clean Water Act, with NPDES permits regulating its discharge.
CENT KITSAP REG STP is a municipal wastewater treatment plant serving approximately 44,476 people in Brownsville, Washington. It operates under the US Clean Water Act framework with NPDES permitting.