26,154 plants indexed worldwide.
Plants where treatment level information is not publicly available.
Selah S_T Facility is a wastewater treatment plant in Selah, Washington, serving a population of approximately 5,100. It operates under the US Clean Water Act and EPA NPDES permitting framework.
Raymond STP is a municipal wastewater treatment plant in Pacific County, Washington, serving a population of 3,664. The facility has a designed capacity of 1.00 million gallons per day.
Prosser WWTP serves approximately 5,780 people in Benton County, Washington. The plant discharges treated wastewater into the regional watershed, supporting local water quality and downstream ecosystems.
PE ELL S_T FACILITY is a wastewater treatment plant in Centralia, Washington, serving approximately 635 people. It operates under the US Clean Water Act framework.
Okanogan S_T FAC is a wastewater treatment plant serving approximately 2,585 people in Okanogan, Washington, USA. The facility discharges into the local watershed within the Columbia River basin.
Ocean Shores STP serves about 10,600 residents in Washington State. The plant discharges treated wastewater near the Pacific coast, operating under U.S. EPA and state regulations.
Tumwater Reclaimed Water Plant is a projected facility in Tumwater, Washington, serving approximately 19,638 people. It is designed to support water reclamation and reuse in the Pacific Northwest region.
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.
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.
Leavenworth City of POTW serves approximately 1,970 residents in Leavenworth, Washington. The plant treats municipal wastewater before discharging into the local watershed.
Kalama Wastewater Treatment Plant serves the city of Kalama, Washington, USA. It treats wastewater from approximately 2,515 residents and discharges into the local watershed.
Ephrata S_T Facility is a municipal wastewater treatment plant serving approximately 6,890 people in Ephrata, Washington, United States. It operates under the US Clean Water Act framework.
COLVILLE SEW LAGOON is a municipal wastewater treatment plant serving Colville, Washington. It treats wastewater for approximately 5,116 residents and discharges into the local watershed.
Cle Elum S_T Facility is a municipal wastewater treatment plant serving Cle Elum, Washington, USA. It treats wastewater from a population of approximately 4,168 under the US Clean Water Act.
Cheney S_T Facility is a municipal wastewater treatment plant serving Cheney, Washington, USA. It serves a population of approximately 10,790 and operates under the US Clean Water Act framework.
Chelan City of POTW serves 3,627 people in Chelan Falls, Washington. The plant operates under the US Clean Water Act, with NPDES permits regulating its discharge.
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.
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.
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.
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.