14,813 plants indexed.
OLUSTEE WWT is a secondary treatment plant serving 680 people in Jackson County, Oklahoma. It discharges 227.13 units of treated wastewater daily, with a designed capacity of 227.12 units.
Olympian Village STP is a secondary treatment plant in Olympian Village, Missouri, serving 774 people. It discharges 302.83 megaliters annually and has a designed capacity of 416.39 megaliters.
Oma Sewer District is a projected secondary treatment plant serving 600 people in Oma, Mississippi. It discharges 283.91 cubic meters of treated wastewater daily, supporting local water quality.
Omaha WWTP is a secondary treatment plant in Omaha, Texas, serving a small population of 900. It discharges 412.61 units of treated wastewater daily, with a designed capacity of 757.08 units.
Omega Las in Tifton, Georgia, is a primary treatment plant serving 750 people. It discharges 321.76 units of treated wastewater daily, with a designed capacity of 495.89 units.
ONAGA WWTP is a secondary treatment plant serving Onaga, Kansas. It treats wastewater for 673 residents with a designed capacity of 548.88 volume units and discharges 442.89 volume units.
Onalaska WWTP is an advanced treatment facility serving 1,200 people in Onalaska, Texas. It discharges 416.40 units of treated wastewater daily, with a designed capacity of 567.81 units.
ONARGA STW is an advanced wastewater treatment plant in Onarga, Illinois, serving 1,368 people. It has a designed capacity of 946.35 m³/day and discharges 662.45 m³/day of treated effluent.
Onawa WWTP is a secondary treatment facility serving approximately 3,000 residents in Onawa, Iowa. It discharges treated wastewater into the local watershed, contributing to the Missouri River basin.
ONAWAY STP is a secondary treatment plant serving 1,039 people in Onaway, Michigan. It discharges 378.54 m³/day of treated wastewater, with a designed capacity of 492.10 m³/day.
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.