GGR334H1 Final: Study Guide for Final
24 Oct 2017
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Document Summary
One of the major water issues in toronto is stormwater management especially in the old core because of the use of combined sewers. Stormwater: drains roads, roofs, some homes and weeping tiles. When there is heavy rain, combined sewers leads to rain in the sanitary drain, cso"s, unsafe beaches, polluted water in parks ravines and basement flooding. Terms: combined sewer, sanitary sewer, bypass, overflow, primary/ secondary/ tertiary waste water treatment. Proposed tanks and tunnels (hrt- primary and chlorine) Not full stormwater and sewer separation (foundation drain) The ijc declared toronto and region a great lakes area of concern in 1987. 80 combined sewer outfalls, 30 of which were directly into the lake. 2600 storm sewer outfalls, 70 of which were directly into the lake. Toronto annually has 14 billion litres of sewage contaminated bypasses directly into the lake w/out primary or secondary treatment. All sanitary sewage receives at least secondary treatment.
