Sewage
In the past waste water was dumped into the lake and thus caused the waters off Toronto to become polluted. Since then the city has treated water from households and industry and commercial consumers before it returns to Lake Ontario.
Most of the sewage treatment facilities are located along the lake and sludge is sent to dumps and to other facilities in the province:
- Ashbridge's Bay Waste Treatment Plant
- Humber Bay Waste Treatment Plant
- North Toronto Waste Treatment Plant
- Highland Creek Waste Treatment Plant
- Dee Avenue Laboratory
Public works projects initiated by the city involves items like repairing sewers, water networks, and maintaining city facilities.
There are approximately 1600 storm sewers that drain rainwater to creeks in rivers in the city. Accidental runoff from sanitary sewers have led to severe pollution in a number of water ways.
Critical waterways used to drain water in the city include:
- Humber River
- Don River
- Highland Creek
- Taylor-Massey Creek
- Etobicoke Creek
- Black Creek
Read more about this topic: Toronto Works And Emergency Services