248 plants indexed.
DAVENPORT LAGOON is a secondary wastewater treatment plant in Davenport, Washington, serving 1,780 people. It discharges 605.67 megaliters per year and operates under the US Clean Water Act NPDES permit system.
DEER PARK POTW is a secondary treatment plant in Spokane County, Washington, serving 3,675 people. It discharges 972.85 units of treated wastewater and has a designed capacity of 2,634.64 units.
Diamond Lake STP is a secondary treatment plant in Pend Oreille County, Washington, serving 1,698 people. It discharges 276.34 million gallons per year and operates under U.S. EPA NPDES regulations.
Eastsound WD STP is a secondary treatment plant serving 1,500 people on Orcas Island, Washington. It discharges treated wastewater into the marine environment near the San Juan Islands.
Eatonville STP is a secondary treatment plant serving 2,775 people in Eatonville, Washington. It discharges treated wastewater into the local watershed, ultimately draining to the Pacific Ocean.
ELBE STP is a secondary treatment plant serving 176 people in Elbe, Washington. It discharges 30.28 megaliters of treated wastewater annually, with a designed capacity of 37.85 megaliters.
ELMA STP is a secondary wastewater treatment plant serving 3,540 people in Elma, Washington. It discharges 791.15 million gallons per year into the local watershed.
Endicott S_T Facility is a secondary treatment plant serving 360 people in Endicott, Washington. It discharges 567.81 volume units and operates under US EPA NPDES regulations.
ENTIAT S_T FACILITY is a secondary treatment plant in Chelan County, Washington, serving 1,635 people. It discharges 302.83 megaliters per year and operates under US EPA NPDES regulations.
Everson S_T Facility is a secondary wastewater treatment plant serving 3,837 people in Everson, Washington. It discharges 454.25 million gallons per year and operates under US EPA NPDES regulations.
FAIRFIELD STP is a secondary wastewater treatment plant serving Fairfield, Washington, USA. It treats approximately 595 residents with a designed capacity of 427.75 volume units and discharges 302.83 volume units.
Farmington S_T FAC is a secondary wastewater treatment plant in Farmington, Washington, serving a small population of 123. It discharges treated water into the local watershed, contributing to the region's water quality management.
Fisherman Bay STP is a secondary treatment plant serving Lopez Village, Washington. It discharges treated wastewater near the coast of San Juan County, with a design capacity of 185.48 volume units.
Forks Treat STP is a secondary wastewater treatment plant in Forks, Washington, serving approximately 3,120 people. It discharges treated effluent into local waterways within the Olympic Peninsula watershed.
Freeland WWS is an advanced wastewater treatment plant projected to serve 1,427 people in Island County, Washington. It discharges 681.37 megaliters annually and is located within 10 km of the coast.
GARFIELD S_T FACILITY is a secondary wastewater treatment plant in Elberton, Washington, serving 640 people. It discharges 264.98 million gallons per year and operates under US EPA NPDES regulations.
GEORGE STP is a secondary wastewater treatment plant serving 690 people in George, Washington. It discharges 113.56 million gallons per year and has a designed capacity of 272.55 million gallons per year.
Glenwood STP and Collection is a secondary treatment plant serving 808 people in Glenwood, Washington. It discharges 208.20 megaliters of treated wastewater annually and operates under the US Clean Water Act framework.
Grand Coulee STP is a secondary treatment plant serving 1,884 people in Grand Coulee, Washington. It discharges 783.58 thousand cubic meters of treated wastewater annually, operating under the US Clean Water Act.
Grand Mound WWTP is a secondary treatment facility serving 2,232 people in Centralia, Washington. It discharges 378.54 megaliters of treated wastewater annually, operating under U.S. EPA NPDES regulations.