Follow the Erosion and Sediment Control Guideline for Urban Construction during construction and demolition activities. (1)
Retain runoff generated from a minimum of 5 mm depth of rainfall from all site surfaces through infiltration, evapotranspiration, water harvesting and reuse.1,2,3,4
Retain runoff generated from a minimum of 10 mm depth of rainfall from all site surfaces through infiltration, evapotranspiration, water harvesting and reuse.2,3,4
Retain runoff generated from a minimum of 25 mm depth of rainfall from all site surfaces through infiltration, evapotranspiration, water harvesting and reuse.2,3,4,5
Remove 80 per cent of total suspended solids (TSS) on an annual loading basis from all runoff leaving the site based on the post-development level of imperviousness.1
Control the amount of E. Coli directly entering Lake Ontario and waterfront areas as identified in the Wet Weather Flow Management Guidelines.2
Where potable water is used for irrigation, provide drought-tolerant plants for at least 50 per cent of the landscaped site area (including at-grade landscapes, vegetated roofs and walls).1,2
Install water fixtures that achieve at least a 40 per cent reduction in potable water consumption for the building (not including irrigation) over the baseline water fixtures.3,5
Where soft landscaping exists on the site, reduce potable water use for irrigation by 60 per cent. 4,5
Install water fixtures or use non-potable water sources to achieve at least a 50 per cent reduction in potable water consumption for the building (not including irrigation) over the baseline water fixtures.3,5