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Line 75:
Line 75: − *Use a combination of increased topsoil depths, perforated storm sewers, stormwater management facility, and an infiltration facility to provide quality, quantity, and reduce runoff volumes to match pre-development.+ − *Even with favorable soils and maximum use of infiltration techniques, site still requires quantity control storage for large storm events.+ Line 87:
Line 87: − *Large portion of the roof proposed as green roof and cistern proposed in underground parking to capture remaining volume to meet 5 mm target. Water to be used for irrigation and carwash stations.+ − *Quality target achieved as majority of site is ‘clean’ roof water or directed to pervious area. Underground storage tank provided to satisfy municipal release rates to receiving storm sewer system.+ − *Final design required both LIDs to reduce the overall runoff volumes, but also sub-surface storage chambers to provide quantity control to meet municipal requirements.+ − +
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'''Stormwater Management Strategy'''
'''Stormwater Management Strategy'''
#Use a combination of increased topsoil depths, perforated storm sewers, stormwater management facility, and an infiltration facility to provide quality, quantity, and reduce runoff volumes to match pre-development.
#Even with favorable soils and maximum use of infiltration techniques, site still requires quantity control storage for large storm events.
<h3>Example 3: 3775-4005 Dundas St West (includes 2-6 Humber Hill Ave), Toronto</h3>
<h3>Example 3: 3775-4005 Dundas St West (includes 2-6 Humber Hill Ave), Toronto</h3>
'''Stormwater Strategy'''
'''Stormwater Strategy'''
#Large portion of the roof proposed as green roof and cistern proposed in underground parking to capture remaining volume to meet 5 mm target. Water to be used for irrigation and carwash stations.
#Quality target achieved as majority of site is ‘clean’ roof water or directed to pervious area. Underground storage tank provided to satisfy municipal release rates to receiving storm sewer system.
#Final design required both LIDs to reduce the overall runoff volumes, but also sub-surface storage chambers to provide quantity control to meet municipal requirements.
Due to underground parking limited opportunities for infiltration LIDs but used green roof to promote evapotranspiration, and cistern to reduce runoff volumes.
Due to underground parking limited opportunities for infiltration LIDs but used green roof to promote evapotranspiration, and cistern to reduce runoff volumes.
==Data Analysis/Modelling==
==Data Analysis/Modelling==