Background Information

20 February, 2020

The City of London currently operates five wastewater treatment plants and 38 pumping stations. The wastewater treatment plants are located along the Thames River.

The Wastewater Treatment Plants use:

  • Screens and settling tanks to remove solids;
  • Bacteria to consume organic material and convert ammonia to nitrates;
  • Chemicals to remove phosphorous; and,
  • Ultra-violet light to disinfect.

Material that does not pass through screens is removed and hauled to the landfill. In secondary treatment, bacteria are grown to break down organic material in the aeration section.

Annual Wastewater Treatment Plant Reports for 2019

The Southland Plant was shut down in March 2018 and now is a pumping station with flows directed to the Greenway Wastewater Treatment Plant.


Municipal Class EA Process

This study is being undertaken in accordance with the Municipal Class Environmental Assessment process (MEA, 2000 as amended in 2007, 2011, and 2015). The Environmental Assessment study will be completed in keeping with the Ontario Environmental Assessment Act, and will follow the Master Planning Process of the Municipal Engineers Association. For details on this process, please refer to www.municipalclassea.ca


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