Wastewater treatment plant
facility to treat sewage
John Oliver Memorial Sewer Plant
Onsite sewage facility
Sha Tin Sewage Treatment Works
constructed wetland
Point Loma Wastewater Treatment Plant
Newtown Creek Wastewater Treatment Plant
septic tank
Deer Island Waste Water Treatment Plant
Sacramento Regional Wastewater Treatment Plant
Grand Canyon Water Reclamation Plant
Hyperion sewage treatment plant
International Boundary Wastewater Treatment Plant
Hibbing Disposal Plant
Digester
Tillman Water Reclamation Plant
Western Treatment Plant
Crossness Sewage Treatment Works
Christchurch wastewater treatment plant