248 plants indexed. Showing 184 matching current filters.
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.
Liberty Lake STP serves 9,255 residents in Liberty Lake, Washington, as part of the municipal wastewater infrastructure. The plant operates under the U.S. Clean Water Act, with NPDES permits regulating its discharge to protect local water quality.
Yelm Wastewater Treat and Reclaim serves approximately 7,000 residents in North Yelm, Washington. The plant operates under U.S. Clean Water Act regulations with a designed capacity of 1.00 million gallons per day.
Winthrop S_T Facility serves Oroville, Washington, treating wastewater for approximately 510 residents. The plant operates under U.S. Clean Water Act regulations for small communities.
Winslow Treatment serves Bainbridge Island, Washington, with a designed capacity of 1.00 million gallons per day. The plant treats wastewater from a population of 2,385 and discharges into the Puget Sound ecosystem.
Sunnyside POTW is a municipal wastewater treatment plant serving approximately 16,010 people in Sunnyside, Washington. It operates under the U.S. Clean Water Act framework.
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.
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.
UtilityRadar indexes 248 wastewater treatment plants in Washington, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, BIRCH BAY STP has the highest designed capacity at 1 m3/day.