Secondary treatment level wastewater plants

18,358 plants indexed worldwide.

Biological process removes dissolved organic matter after primary treatment.

18,358 plants

Bowerston WWTP and Sewer System

Bowerston, Ohio, United States

Bowerston WWTP and Sewer System serves 414 residents in Bowerston, Ohio, providing secondary treatment. The plant discharges 151.42 megaliters annually and operates under US EPA NPDES regulations.

Secondary 414

Brilliant Water and Sewer District

Brilliant, Ohio, United States

Brilliant Water and Sewer District is a secondary treatment plant serving 2,438 residents in Brilliant, Ohio. It discharges 757.08 cubic meters of treated wastewater daily.

Secondary 2,438

Bradner WWTP and Sewer System

Bradner, Ohio, United States

Bradner WWTP and Sewer System is a secondary treatment plant serving approximately 1,171 people in Bradner, Ohio. It discharges treated wastewater into local waterways within the Lake Erie basin.

Secondary 1,171

Batavia WWTP and Sewer System

Batavia, Ohio, United States

Batavia WWTP and Sewer System is a secondary treatment plant serving 1,617 people in Batavia, Ohio. It discharges 757.08 cubic meters of treated wastewater daily, with a designed capacity of 908.50 cubic meters.

Secondary 1,617

Chickasaw WWTP and Sewers

Mercer County, Ohio, United States

Chickasaw WWTP and Sewers is a secondary treatment plant in Mercer County, Ohio, serving 364 people. It discharges 189.27 m³/day and has a designed capacity of 897.14 m³/day.

Secondary 364

Jenera WWTP and Sewer System

Jenera, Ohio, United States

Jenera WWTP and Sewer System serves 235 residents in Jenera, Ohio, with secondary treatment. The plant discharges 75.71 thousand gallons per day and has a designed capacity of 83.28 thousand gallons per day.

Secondary 235

Fort Recovery WWTP and Sewers

Mercer County, Ohio, United States

Fort Recovery WWTP and Sewers is a secondary treatment plant serving 1,450 people in Mercer County, Ohio. It discharges 325.55 million gallons per year and has a designed capacity of 946.35 million gallons.

Secondary 1,450

Oakwood WWTP and Sewer System

Oakwood, Ohio, United States

Oakwood WWTP and Sewer System is a secondary treatment plant serving 675 residents in Oakwood, Ohio. It discharges 302.83 megaliters annually and operates under US EPA NPDES regulations.

Secondary 675

Florida WWTP and Sewer System

Henry County, Ohio, United States

Florida WWTP and Sewer System serves 509 people in Henry County, Ohio, with secondary treatment. The plant discharges 113.56 million gallons per year and has a designed capacity of 181.70 million gallons.

Secondary 509

Hocking Co Haydenville WWTP

Hocking County, Ohio, United States

Hocking Co Haydenville WWTP is a secondary treatment plant in Hocking County, Ohio, serving 290 people. It discharges 121.13 million gallons per year and has a designed capacity of 87.06 million gallons per year.

Secondary 290

Sherwood WWTP and Sewer System

Defiance County, Ohio, United States

Sherwood WWTP and Sewer System is a secondary treatment plant in Defiance County, Ohio, serving 801 people. It discharges treated wastewater into local waterways, supporting the Maumee River watershed.

Secondary 801

Ney WWTP and Sewers

Ney, Ohio, United States

Ney WWTP and Sewers is a secondary treatment plant serving the village of Ney, Ohio. It treats wastewater for a population of 364 with a designed capacity of 155.20 volume units.

Secondary 364

Auglaize Pines Subdivision WWTP

Defiance, Ohio, United States

Auglaize Pines Subdivision WWTP is a secondary treatment plant serving 100 people in Defiance, Ohio, USA. It discharges 37.85 m³/day of treated wastewater.

Secondary 100

Defiance Co Auglaize River Lagoon WWTP

Summit Township, Michigan, United States

Defiance Co Auglaize River Lagoon WWTP is a secondary treatment plant in Summit Township, Michigan, serving 1,800 people. It discharges 681.37 million gallons per year into the Auglaize River watershed.

Secondary 1,800

Defiance Co Evansport WWTP and Sewer System

Evansport, Ohio, United States

Defiance Co Evansport WWTP and Sewer System is a secondary treatment plant serving 304 residents in Evansport, Ohio. It discharges 75.71 megaliters of treated wastewater annually.

Secondary 304

Hoytville WWTP and Sewer System

Hoytville, Ohio, United States

Hoytville WWTP and Sewer System is a secondary treatment plant serving 296 people in Hoytville, Ohio. It discharges 75.71 megaliters of treated wastewater annually, with a designed capacity of 136.27 megaliters.

Secondary 296

Mount Blanchard WWTP and Sewers

Hancock County, Ohio, United States

Mount Blanchard WWTP and Sewers is a secondary treatment plant serving 484 people in Hancock County, Ohio. It discharges 170.34 million gallons per year into local waterways.

Secondary 484

Vanlue WWTP and Sewer System

Vanlue, Ohio, United States

Vanlue WWTP and Sewer System serves the village of Vanlue, Ohio, with secondary treatment for a population of 371. The plant discharges treated wastewater into local waterways, supporting the Blanchard River watershed.

Secondary 371

Rawson WWTP and Sewer System

Hancock County, Ohio, United States

Rawson WWTP and Sewer System serves approximately 1,015 people in Hancock County, Ohio, with secondary treatment. The plant discharges treated wastewater into local waterways, supporting the regional water quality framework.

Secondary 1,015

NWWSD Custar WWTP and Sewers

Wood County, Ohio, United States

NWWSD Custar WWTP and Sewers is a secondary treatment plant serving 436 people in Wood County, Ohio. It discharges 151.42 megaliters per year and has a designed capacity of 189.27 megaliters.

Secondary 436
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