14,814 plants indexed. Showing 5,627 matching current filters.
Kennewick POTW is a municipal wastewater treatment plant serving approximately 74,665 people in Kennewick, Washington. It operates under the U. S. Clean Water Act and EPA NPDES permitting framework.
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.
Granite Falls STP serves approximately 3,370 residents in Granite Falls, Washington. The plant operates under the U.S. Clean Water Act, ensuring treated wastewater meets environmental standards before discharge.
GRANDVIEW STP serves approximately 10,920 residents in Grandview, Washington. The plant operates under the U.S. Clean Water Act, which requires secondary treatment for municipal wastewater.
GOLDENDALE POTW serves Centerville, Washington, treating wastewater for approximately 3,425 residents. The plant operates under U.S. Clean Water Act regulations for small communities.
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.
Ferndale STP serves approximately 11,530 residents in Ferndale, Washington. The plant operates under the U.S. Clean Water Act, with a designed capacity of 1.00 million gallons per day.
Enumclaw WWTP serves approximately 10,920 residents in Enumclaw, Washington. The plant operates under U.S. Clean Water Act regulations with a designed capacity of 1.00 million gallons per day.
Ellensburg STP serves approximately 18,250 people in Ellensburg, Washington. The plant discharges treated wastewater into the Yakima River basin, supporting local water quality and downstream ecosystems.
East Wenatchee STP serves approximately 13,220 people in East Wenatchee, Washington. The plant discharges treated wastewater into the Columbia River basin, supporting local water quality.
Duvall WWTP serves approximately 6,715 residents in Duvall, Washington. The plant operates under U.S. Clean Water Act regulations, ensuring treated effluent meets state water quality standards before discharge.
DAYTON STP serves Dayton, Washington, treating wastewater for approximately 3,068 residents. The plant operates under U.S. EPA and Washington state regulations, discharging into the local watershed.
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.
Connell STP is a municipal wastewater treatment plant serving approximately 5,150 people in Connell, Washington. The facility operates under the U.S. Clean Water Act framework, with state-issued NPDES permits governing its discharge.
College Place WWTP serves approximately 8,780 people in Walla Walla County, Washington. The plant operates under the US Clean Water Act, which mandates secondary treatment for municipal wastewater facilities.
COLFAX STP is a municipal wastewater treatment plant serving approximately 2,845 residents in Colfax, Washington, United States. It operates under the U.S. Clean Water Act and EPA NPDES permitting framework.
Clarkston STP serves approximately 7,200 residents in Clarkston, Washington. The plant discharges into the Snake River system, a major tributary of the Columbia River.
Chewelah S_T Facility is a municipal wastewater treatment plant serving approximately 2,610 residents in Chewelah, Washington, United States. It operates under the US Clean Water Act framework.
CHEHALIS STP serves approximately 9,591 people in Chehalis, Washington. The plant operates under the U.S. Clean Water Act, with a designed capacity of 1.00 million gallons per day.
CENTRALIA STP serves 17,140 people in Lewis County, Washington. The plant operates under the US Clean Water Act and NPDES permit program.
UtilityRadar indexes 14814 wastewater treatment plants in United States, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, HOQUIAM WASTEWATER TREATMENT PLANT has the highest designed capacity at 1 m3/day.