248 plants indexed.
MESA S_T FACILITY is a secondary wastewater treatment plant in Mesa, Washington, serving 440 people. It discharges 158.99 units of treated effluent and has a designed capacity of 234.69 units.
Metaline Falls S_T FAC is a secondary treatment plant serving 238 people in Pend Oreille Village, Washington. It discharges treated wastewater into the local watershed under U.S. EPA NPDES regulations.
Metaline Municipal STP is a secondary treatment plant serving 160 people in Metaline, Washington. It discharges 166.56 units of treated wastewater, operating under US EPA and Washington state regulations.
MORTON STP is a secondary wastewater treatment plant serving 1,125 people in Morton, Washington. It discharges 757.08 cubic meters per day and has a designed capacity of 2,346.95 cubic meters per day.
Mossyrock S_T Facility is a secondary wastewater treatment plant in Lewis County, Washington, serving a small population of 533. It discharges treated effluent into the local watershed, supporting downstream water quality.
NACHES STP is a secondary wastewater treatment plant serving 725 people in Naches, Washington. It discharges treated effluent into the local watershed within the Yakima River basin.
Naselle Youth Camp STF is a secondary treatment plant in Grays Harbor County, Washington, serving 300 people. It discharges 132.49 volume units and operates under US Clean Water Act regulations.
North Bonneville S_T FAC is a secondary wastewater treatment plant in Washington, USA, serving 965 people with a discharge volume of 473.18 units. It operates under the US Clean Water Act framework.
Oakesdale S_T Facility is a secondary wastewater treatment plant in Whitman County, Washington, serving approximately 450 people. It discharges 946.35 cubic meters of treated effluent daily.
Pacific Beach STP is a secondary treatment plant serving 1,950 people in Pacific Beach, Washington. It discharges 378.54 m³/day of treated wastewater near the Pacific coast.
Pateros S_T Facility is a secondary wastewater treatment plant serving 630 people in Pateros, Washington. It discharges treated effluent into the Columbia River basin.
Penn Cove SD STP is a secondary treatment plant serving 577 people in Penn Cove Park, Washington. It discharges 151.42 megaliters of treated wastewater annually near the coast of Puget Sound.
Peshastin POTW is a secondary treatment plant serving 1,016 people in Peshastin, Washington. It discharges treated wastewater into the local watershed, supporting downstream water quality in the Wenatchee River basin.
Pomeroy WWTP is a secondary treatment plant serving 1,425 people in Pomeroy, Washington. It discharges treated wastewater into the local watershed, operating under U.S. EPA NPDES regulations.
Reardan S_T Facility is a secondary wastewater treatment plant serving 608 residents in Reardan, Washington. It discharges 151.42 volume units daily and operates under US EPA NPDES regulations.
REPUBLIC S_T FACILITY is a secondary wastewater treatment plant in Ferry County, Washington, serving 1,220 people. It discharges 264.98 thousand cubic meters annually and operates under US EPA NPDES regulations.
Rock Island WWTP is a projected secondary treatment plant in Rock Island, Washington, serving a population of 1,075. It discharges treated wastewater into the local watershed.
Rockford S_T Facility is a secondary wastewater treatment plant serving 447 people in Freeman, Washington. It discharges 492.10 volume units and operates under U.S. EPA NPDES permitting.
ROOSEVELT LAGOON is a secondary treatment plant serving 50 people in Klickitat County, Washington. It discharges 18.93 megaliters of treated wastewater annually.
Rosalia S_T Facility is a secondary wastewater treatment plant serving 640 residents in Rosalia, Washington, USA. It operates under the US Clean Water Act with an NPDES permit framework.