14,813 plants indexed.
ONEIDA NORTH LAGOON is a secondary wastewater treatment plant serving 465 people in Knox County, Illinois. It discharges treated effluent into local waterways under US EPA and Illinois EPA regulations.
ONEIDA WWTP is a secondary treatment facility serving 70 people in Oneida, Kansas. It discharges 26.50 units of treated wastewater daily, with a designed capacity of 37.85 units.
ONEKAMA STP is a secondary wastewater treatment plant serving Bear Lake, Michigan. It treats approximately 492 m³/day with a designed capacity of 757 m³/day.
ONG WWTP is a secondary treatment plant in Thayer County, Nebraska, serving a small population of 67. It discharges 37.85 units of treated wastewater, operating under US EPA NPDES regulations.
Onion Creek WRP is an advanced treatment plant serving 2,300 people in Bastrop County, Texas. It discharges 757.08 megaliters per year and has a designed capacity of 1,305.96 megaliters.
Onion River SC STP is an advanced wastewater treatment plant in Hingham, Wisconsin, serving 1,242 people. It discharges 378.54 cubic meters per day and is located near the coast of Lake Michigan.
ONONDAGA CAVE STATE PARK wastewater treatment plant serves a small population of 200 in Crossroads, Missouri. It provides secondary treatment and discharges 22.71 cubic meters of treated wastewater.
ONSLOW WWTP is a secondary treatment plant in Jones County, Iowa, serving 216 people. It discharges 75.71 units of treated wastewater daily, with a designed capacity of 113.56 units.
ONSTED STP is an advanced wastewater treatment plant in Cambridge Township, Michigan, serving 813 people. It discharges 264.98 million gallons per year and operates under US EPA NPDES regulations.
Ontario WWTP is a secondary treatment facility serving 495 people in Ontario, Wisconsin. It discharges treated wastewater into local waterways, supporting the Kickapoo River watershed.
OOLITIC WWTP is a secondary treatment plant in Oolitic, Indiana, serving 1,368 people. It discharges 605.67 million gallons per year and has a designed capacity of 681.37 million gallons per year.
Oologah PWA WWT is an advanced wastewater treatment plant in Rogers County, Oklahoma, serving a population of 883. It discharges 378.54 m³/day and has a designed capacity of 1135.62 m³/day.
OOSTBURG STP is an advanced wastewater treatment plant in Oostburg, Wisconsin, serving approximately 2,889 people. It discharges treated water near Lake Michigan, supporting local water quality.
Opal Lagoon is a secondary wastewater treatment plant in Lincoln County, Wyoming, serving a small population of 96. It discharges treated wastewater into the local watershed.
OPP EASTSIDE WWTP in Opp, Alabama, serves about 1,020 people with advanced treatment. The plant discharges 753.30 thousand gallons per day and has a designed capacity of 1,514.16 thousand gallons per day.
Oppelo WWTP is an advanced treatment facility in Conway County, Arkansas, serving a population of 781. It discharges 132.49 megaliters of treated wastewater annually, with a designed capacity of 378.54 megaliters.
Oracle WWTF is a secondary treatment plant serving 1,500 residents in Oracle, Arizona. It discharges 170.34 million gallons per year and has a designed capacity of 302.83 million gallons.
ORAN SAN DISTRICT STP is a secondary treatment plant in Bremer County, Iowa, serving a small population of 100. It discharges 37.85 units of treated wastewater daily.
ORAN WWTP is a secondary treatment plant serving Oran, Missouri, with a design capacity of 643.52 units and a discharge volume of 567.81 units. It operates under the US Clean Water Act framework.
Orange Co Home and Infirmary STP is an advanced treatment plant in Village of Goshen, New York, serving 400 people. It discharges 121.13 megaliters per year and has a designed capacity of 378.54 megaliters per year.