Secondary treatment level wastewater plants

18,358 plants indexed worldwide.

Biological process removes dissolved organic matter after primary treatment.

18,358 plants

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

Savannah WWTP and Sewer System

Ashland County, Ohio, United States

Savannah WWTP and Sewer System serves 372 people in Ashland County, Ohio, with secondary treatment. The plant discharges 132.49 megaliters annually and has a designed capacity of 189.27 megaliters.

Secondary 372

Republic WWTP and Sewers

Seneca County, Ohio, United States

Republic WWTP and Sewers in Seneca County, Ohio, serves 650 people with secondary treatment. The plant discharges 227.13 million gallons per year and has a designed capacity of 283.91 million gallons.

Secondary 650

Bloomville WWTP and Sewers

Bloomville, Ohio, United States

Bloomville WWTP and Sewers is a secondary treatment plant serving approximately 1,045 residents in Bloomville, Ohio. It discharges 363.40 megaliters per year into local waterways within the Lake Erie basin.

Secondary 1,045

Mount Victory WWTP and Sewer System

Hardin County, Ohio, United States

Mount Victory WWTP and Sewer System serves 955 people in Hardin County, Ohio, with secondary treatment. The plant discharges treated wastewater into local waterways within the Scioto River basin.

Secondary 955

Edison WWTP and Sewer System

Delaware County, Ohio, United States

Edison WWTP and Sewer System serves 437 people in Delaware County, Ohio, with secondary treatment. The plant discharges treated wastewater into local waterways, supporting the Olentangy River watershed.

Secondary 437

Stryker WWTP and Sewer System

Pulaski, Ohio, United States

Stryker WWTP and Sewer System is a secondary treatment plant serving Pulaski, Ohio. It treats wastewater for approximately 1,595 people with a designed capacity of 1,324.89 volume units.

Secondary 1,595

Pioneer WWTP and Sewer System

Pioneer, Ohio, United States

Pioneer WWTP and Sewer System serves 1,460 people in Pioneer, Ohio, with secondary treatment. It discharges 416.40 units of treated wastewater daily, operating at 68.7% of its 605.66-unit design capacity.

Secondary 1,460

New Washington WWTP and Sewers

Crawford County, Ohio, United States

New Washington WWTP and Sewers serves Crawford County, Ohio, providing secondary treatment for a small population of 987. The plant discharges 378.54 cubic meters per day and has a designed capacity of 567.81 cubic meters per day.

Secondary 987

Uniopolis WWTP and Sewer System

Uniopolis, Ohio, United States

Uniopolis WWTP and Sewer System is a secondary treatment plant serving 350 people in Uniopolis, Ohio. It discharges 102.21 million gallons per year into local waterways.

Secondary 350

New Vienna WWTP and Sewer System

New Vienna, Ohio, United States

New Vienna WWTP and Sewer System is a secondary treatment plant serving 1,100 people in New Vienna, Ohio. It discharges 302.83 m³/day of treated wastewater.

Secondary 1,100
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