14,814 plants indexed. Showing 5,627 matching current filters.
Pasco STP serves about 61,000 residents in Pasco, Washington, treating municipal wastewater before discharge. The plant operates under the U.S. Clean Water Act's NPDES permitting program.
Palouse Treatment Facility serves the town of Palouse, Washington, treating wastewater for approximately 1,015 residents. The plant discharges into the local watershed, contributing to the Palouse River basin.
OTHELLO SEWAGE LAGOONS serves Adams County, Washington, treating wastewater for approximately 7,420 people. The plant operates under the U.S. Clean Water Act, which requires secondary treatment for municipal facilities of this scale.
Orting S_T Facility serves approximately 6,770 residents in Orting, Washington. The plant operates under U.S. Clean Water Act regulations for municipal wastewater treatment.
Oroville S_T Facility is a municipal wastewater treatment plant serving Oroville, Washington, USA. It serves a population of 2,570 and operates under the US Clean Water Act framework.
OMAK STP serves Omak, Washington, treating wastewater for approximately 4,728 residents. The plant operates under the U.S. Clean Water Act framework, with state-level NPDES permitting ensuring environmental compliance.
Whidbey NavalAir Station Oak Harbor is a wastewater treatment plant in Island County, Washington, serving approximately 7,500 people. The facility operates under U.S. EPA NPDES regulations for municipal wastewater.
North Bend Treatment Plant serves approximately 5,830 residents in North Bend, Washington. It operates under the U.S. Clean Water Act, ensuring treated wastewater meets federal and state standards before discharge.
NEWPORT STP serves Newport, Washington, treating wastewater for approximately 3,040 residents. The plant operates under U.S. EPA and Washington state regulations, discharging into the Pend Oreille River watershed.
Moses Lake STP serves approximately 10,820 residents in Moses Lake, Washington. The plant discharges into the local watershed, supporting water quality in the Columbia River basin.
Sand Dunes WWTP serves 16,836 people in Grant County, Washington. The plant operates under the US Clean Water Act, with NPDES permits regulating its discharge to protect local water quality.
Montesano WWPCP serves 3,232 people in Montesano, Washington, discharging treated wastewater into the Chehalis River basin. The plant operates under the US Clean Water Act NPDES permit program.
MONROE STP serves approximately 17,330 people in Monroe, Washington. The plant operates under the US Clean Water Act, with a designed capacity of 1.00 million gallons per day.
Medical Lake STP serves approximately 6,860 residents in Medical Lake, Washington. The plant operates under U.S. Clean Water Act regulations for municipal wastewater treatment.
LYNDEN STP serves Lynden, Washington, treating wastewater from approximately 12,060 residents. The plant operates under U.S. Clean Water Act regulations with NPDES permitting.
West Longview WWTP serves approximately 16,629 people in Longview, Washington. The plant discharges treated wastewater into the Columbia River basin, supporting downstream water quality in the Pacific Northwest.
Cowlitz Water Pollution Control Plant in Longview, Washington serves approximately 39,877 people. The facility operates under the U.S. Clean Water Act, discharging treated wastewater into the Columbia River system.
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.
LA CENTER STP serves approximately 2,935 residents in La Center, Washington. The plant treats municipal wastewater before discharging into the local watershed.
KITTITAS STP serves the community of Kittitas, Washington, treating wastewater for approximately 1,430 residents. The plant is located inland, over 50 km from the coast, and discharges into the local watershed.
UtilityRadar indexes 14814 wastewater treatment plants in United States, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, ORTING S_T FACILITY has the highest designed capacity at 1 m3/day.