12,948 plants indexed worldwide.
Plants located within 50 km of a coastline.
Oczyszczalnia Ploty is a secondary treatment plant in Płoty, Poland, serving 638 people. It discharges 90.97 m³/day of treated wastewater and has a designed capacity of 7,000 m³/day.
Oczyszczalnia sciekow Suchy Dab is a secondary treatment plant serving 617 people in Suchy Dab, Poland. It discharges 87.98 m3/day of treated wastewater and has a designed capacity of 3275 m3/day.
Oczyszczalnia Ścieków w Komarowie is a secondary treatment plant serving Modrzewie, Poland. It discharges treated wastewater near the Baltic Sea coast, handling a daily volume of 663.59 m³.
Odeborgs avloppsreningsverk is an advanced wastewater treatment plant serving Ödeborg, Sweden. It treats wastewater for approximately 3,932 people with a designed capacity of 6,000 m³/day.
Odeceixe wastewater treatment plant serves the town of Odeceixe in Aljezur, Faro, Portugal. It provides advanced treatment for a population of 3,500 and discharges treated water near the coast.
Odemira wastewater treatment plant serves 2,200 people in Odemira, Portugal, with advanced treatment and a designed capacity of 4,000 m³/day. It discharges treated effluent into the local watershed, ultimately draining to the Atlantic Ocean.
Ods avloppsreningsverk is an advanced wastewater treatment plant in Gudmundrå distrikt, Kramfors, Sweden, serving approximately 5,300 people. It discharges treated wastewater into the local water system near the Baltic coast.
Oelixdorf wastewater treatment plant in Kollmoor, Schleswig-Holstein, Germany, serves 1,630 people with secondary treatment. The plant is now closed, with a designed capacity of 4,000 m³/day and an average discharge volume of 412.51 m³/day.
Oeversee wastewater treatment plant in Schleswig-Holstein, Germany, serves 1,587 people with secondary treatment. The plant is now closed, having discharged into the Treene river system.
OGENS wastewater treatment plant in Ogens, Vaud, Switzerland, serves a small population of 164 with secondary treatment. It discharges 74.44 m³/day of treated effluent into local waterways.
OGILVIE STP is a secondary wastewater treatment plant in Ogilvie, Minnesota, serving 348 people. It discharges 336.90 volume units daily with a designed capacity of 870.64 units.
Ohai wastewater treatment plant in Wallace Takitimu Community, Southland, New Zealand, serves 307 people with secondary treatment. It discharges 218.00 units of treated wastewater, operating under New Zealand's national environmental standards.
Ohope wastewater treatment plant in Ōhope, Bay of Plenty, New Zealand, serves approximately 2,850 people with secondary treatment. It discharges treated wastewater near the coast, supporting local water quality.
Oil Springs Lagoons is a secondary treatment plant serving 1,114 people in Oil Springs, Ontario, Canada. It discharges treated wastewater into local waterways within the Great Lakes Basin.
Ojo Zarco de Fuentes is a secondary wastewater treatment plant in Jesús María, Jalisco, Mexico, serving 863 people with a designed capacity of 86.40 volume units.
Olahaugen p is a secondary treatment plant in Erdal, Norway, serving 158 people. It discharges 68.52 m³/day of treated wastewater near the coast of Vestland county.
Olaviken wastewater treatment plant in Erdal, Norway serves 127 people with secondary treatment. It discharges treated wastewater near the coast of Vestland county.
OLD LEAKE SKIPMARSH LANE STW is a secondary treatment plant in Boston, England, serving approximately 2,597 people. It discharges 578.18 cubic meters of treated wastewater daily.
Oldendorf wastewater treatment plant in Krummendiek, Schleswig-Holstein, Germany, serves a population of 1,124 with secondary treatment. The plant is now closed.
Oldenswort wastewater treatment plant in Schleswig-Holstein, Germany, serves a population of 878 with secondary treatment. The plant is closed and located within 10 km of the North Sea coast.