Wastewater plants in Ontario

485 plants indexed. Showing 30 matching current filters.

30 plants matching filters

Port Darlington WPCP

Clarington, Ontario

Port Darlington WPCP in Clarington, Ontario serves about 27,000 people. The plant is operational and located within 50 km of the Lake Ontario coast.

Not Reported 27,321 Medium

Courtice WPCP

Clarington, Ontario

Courtice WPCP in Clarington, Ontario, Canada serves approximately 56,664 people. The plant is operational and located within 50 km of the coast, discharging into the Lake Ontario watershed.

Not Reported 56,664 Medium

Corbett Creek WPCP

Whitby, Ontario

Corbett Creek WPCP in Whitby, Ontario, Canada, serves approximately 94,454 people as an operational municipal wastewater treatment facility. It is located within 50 km of the Lake Ontario coast.

Not Reported 94,454 Medium

Harmony Creek WPCP

Oshawa, Ontario

Harmony Creek WPCP is a municipal wastewater treatment plant in Oshawa, Ontario, Canada, serving approximately 66,217 people. It is located within 50 km of the coast and operates under Canadian provincial regulations.

Not Reported 66,217 Medium

Greenway Pollution Control Centre

London, Ontario

Greenway Pollution Control Centre serves London, Ontario, Canada, treating wastewater for approximately 255,739 people. The plant is operational and discharges into the Thames River watershed, which flows into Lake St. Clair and ultimately the Great

Not Reported 255,739 Medium

City of Guelph Wastewater Treatment Plant

Guelph, Ontario

The City of Guelph Wastewater Treatment Plant serves over 100,000 residents in Ontario, Canada. It is an operational facility discharging treated effluent into the Speed River, part of the Great Lakes Basin.

Not Reported 102,325 Medium

Burlington Skyway Wastewater Treatment Plant

Burlington, Ontario

Burlington Skyway Wastewater Treatment Plant serves over 212,000 residents in Burlington, Ontario, Canada. It is a key facility in the Halton Region's wastewater infrastructure, discharging treated effluent into Lake Ontario.

Not Reported 212,481 Medium

Oakville Southwest Wastewater Treatment Plant

Oakville, Ontario

Oakville Southwest Wastewater Treatment Plant serves 60,359 people in Oakville, Ontario, Canada. The plant is operational and located near Lake Ontario.

Not Reported 60,359 Medium

Baker Road Wastewater Treatment Plant

Grimsby, Ontario

Baker Road Wastewater Treatment Plant serves Grimsby, Ontario, Canada, treating wastewater for approximately 18,309 residents. The plant is operational and located within 50 km of Lake Ontario's coastline.

Not Reported 18,309 Medium

Port Weller Wastewater Treatment Plant

St. Catharines, Ontario

Port Weller Wastewater Treatment Plant serves St. Catharines, Ontario, Canada, treating wastewater for approximately 82,850 people. The plant is located near the Welland Canal and discharges into Lake Ontario.

Not Reported 82,850 Medium

Port Dalhousie Wastewater Treatment Plant

St. Catharines, Ontario

Port Dalhousie Wastewater Treatment Plant serves St. Catharines, Ontario, Canada, treating wastewater for over 71,000 residents. It is located on Lake Ontario and operates under Canadian provincial regulations.

Not Reported 71,248 Medium

Lou Romano Water Reclamation Plant

Windsor, Ontario

Lou Romano Water Reclamation Plant serves Windsor, Ontario, treating wastewater for approximately 317,000 residents. The plant is a key part of the region's water infrastructure, discharging into the Detroit River watershed.

Not Reported 316,940 Medium

Mid Halton Wastewater Treatment Plant

Oakville, Ontario

Mid Halton Wastewater Treatment Plant serves Oakville, Ontario, Canada, treating wastewater for over 104,000 residents. It is located near Lake Ontario and operates under Canadian provincial regulations.

Not Reported 104,503 Medium

Ravensview Wastewater Treatment

Kingston, Ontario

Ravensview Wastewater Treatment serves Kingston, Ontario, Canada, treating wastewater for approximately 110,862 people. The plant is operational and discharges into the St. Lawrence River watershed.

Not Reported 110,862 Medium

Kitchener Wastewater Treatment Plant

Kitchener, Ontario

Kitchener Wastewater Treatment Plant serves approximately 146,000 residents in Kitchener, Ontario, Canada. The facility is operational and discharges treated effluent into the Grand River watershed.

Not Reported 146,333 Medium

CATARAQUI BAY WASTEWATER TREATMENT

Kingston, Ontario

Cataraqui Bay Wastewater Treatment serves Kingston, Ontario, treating wastewater for approximately 65,542 residents. The plant discharges into the Cataraqui River near Lake Ontario, supporting the local watershed.

Not Reported 65,542 Medium

Water Pollution Control Plant

Thunder Bay, Ontario

The Water Pollution Control Plant in Thunder Bay, Ontario serves over 107,000 people. It is an operational facility located near the coast of Lake Superior, Canada's largest Great Lake.

Not Reported 107,764 Medium

Belleville Wastewater Treatment Facility

Belleville, Ontario

Belleville Wastewater Treatment Facility serves approximately 48,607 people in Belleville, Ontario, Canada. The plant is operational and located near the coast of Lake Ontario.

Not Reported 48,607 Medium

Water Pollution Control Centre

Barrie, Ontario

Water Pollution Control Centre in Barrie, Ontario, Canada, serves over 106,000 people. The operational plant is located within 50 km of Lake Huron's shoreline.

Not Reported 106,626 Medium

Duffin Creek WPCP

Pickering, Ontario

Duffin Creek WPCP in Pickering, Ontario, serves over 725,000 people as a major wastewater treatment facility in the Greater Toronto Area. It discharges into Lake Ontario, supporting the region's water quality and ecosystem.

Not Reported 725,257 Medium

Frequently asked

How many wastewater treatment plants are in Ontario?

UtilityRadar indexes 485 wastewater treatment plants in Ontario, with treatment level, capacity, operator and discharge data on each record.

Who operates wastewater treatment in Ontario?

Among the plants on this page, the most-referenced operator is City of London Wastewater. UtilityRadar's records show 1 plant linked to this operator.

What is the largest wastewater treatment plant in Ontario?

Among the indexed plants, Port Darlington WPCP has the highest designed capacity at 1 m3/day.

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