18,358 plants indexed worldwide.
Biological process removes dissolved organic matter after primary treatment.
RYDERWOOD STP is a secondary wastewater treatment plant in Ryderwood, Washington, serving a small population of 380. It discharges 378.54 cubic meters of treated wastewater daily.
TOUTLE STP is a secondary treatment plant in Cowlitz County, Washington, serving approximately 1,100 people. It discharges 946.35 cubic meters of treated wastewater daily into the local watershed.
Coupeville STP is a secondary treatment plant serving 2,155 people in Coupeville, Washington. It discharges 757 m³/day of treated wastewater near the coast of Puget Sound.
CONCRETE TREATMENT is a secondary wastewater treatment plant in Concrete, Washington, serving 641 people. It discharges 143.85 million gallons per year into the Skagit River basin.
SEKIU STP is a secondary wastewater treatment plant serving 538 people in Port Angeles, Washington. It discharges 378.54 m³/day of treated effluent near the Strait of Juan de Fuca.
Clallam Bay STP is a secondary treatment plant serving 780 people in Clallam Bay, Washington. It discharges approximately 454 m³/day and is located within 10 km of the Pacific coast.
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.
Carbonado S T FAC is a secondary wastewater treatment plant in Carbonado, Washington, serving 610 people. It discharges 113.56 megaliters annually and is designed for 378.54 megaliters, operating under U.S. 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.
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.
ASOTIN MUNICIPAL STP serves Vineland, Washington, treating wastewater for 1,255 people with secondary treatment. The plant discharges 355.83 million gallons per year into the local watershed.
Duffield WWTP and Collection System is a secondary treatment plant serving 1,500 people in Clinchport, Virginia. It discharges 567.81 megaliters of treated wastewater annually.
RIVANNA WWTP is a secondary treatment plant in Palmyra, Virginia, serving a small population of 200. It discharges 56.78 megaliters of treated wastewater annually, with a designed capacity of 151.42 megaliters.
Hickory Flats Jonesville is a secondary wastewater treatment plant in Lee County, Virginia, serving about 7,400 people. It discharges treated effluent into local waterways, supporting the region's environmental health.
Austinville WWTP and Coll Sys is a secondary treatment plant serving 182 people in Austinville, Virginia. It discharges 75.71 thousand gallons per day into local waterways.
The Bastian WWTP and Collection System in Hicksville, Virginia, serves a small population of 400 with secondary treatment. It discharges 378.54 cubic meters of treated wastewater daily, operating under the US Clean Water Act framework.
PULASKI CO CS is a projected secondary wastewater treatment plant in Newbern, Virginia, serving 240 people. It discharges 114.48 volume units and is located inland, away from coastal zones.
Stoney Creek STP is a secondary treatment plant serving 700 people in Shenandoah County, Virginia. It discharges 340.69 thousand cubic meters of treated wastewater annually.
MCGAHEYSVILLE STP andCS is a secondary wastewater treatment plant in Rockingham County, Virginia, serving 460 people. It discharges treated effluent into local waterways, supporting the Shenandoah River watershed.
Wintergreen Mountain STP is a secondary treatment plant in Nelson County, Virginia, serving approximately 3,000 people. It discharges treated wastewater into the local watershed, contributing to the James River basin.