Wastewater History

The Evolution Of Kingston's Sewers

Like other Canadian Municipalities, the City of Kingston has sewers dating back to the late 1800s and early 1900s. Therefore, much of the original city area is serviced by a combined sewer system. Generally, the combined sewer area is located in the central area and downtown, bordered by Sir John A. Macdonald Blvd to the west, Third Avenue to the North and Lake Ontario to the south and Great Cataraqui River to the east.

Within the Combined Sewer Area, the City of Kingston collects the storm water runoff and sanitary wastewater and transfers it to the Ravensview Water Pollution Control Plant for treatment. During periods of heavy rainfall and snowmelt, the City has been forced to bypass varying quantities of storm water and sanitary wastewater to the Great Cataraqui River and Lake Ontario. The City does this to avoid sanitary sewer backups into homes and businesses in the central and downtown areas, due to the overloading of the sewer system.

Kingston's Sanitary Sewer System Evolution

  • 1800s
    City is established and all wastewater and storm water is discharged directly to the lake and river.
  • 1950s
    Due to regulatory changes, interceptors are installed to direct all flow to the sewage treatment plant and sewers are separated into sanitary and storm were planned for all new developments.
  • 1990s
    The Pollution Control Plan (PCP) is completed and several identified capital works projects are initiated based on report recommendations.
  • 2000 to Present
    The PCP is updated in 2001, several capital works projects are completed and several more projects are initiated.