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→Example 3: Costco Distribution Centre
'''Stormwater Management Strategy'''
'''Stormwater Management Strategy'''
#A series of sub-surface infiltration chambers providing on-site retention/infiltration of the 5mm storm, water balance to reduce runoff volumes, and storage of the 100-year storm;
#A series of sub-surface infiltration chambers providing on-site retention/infiltration of the 5mm storm, water balance to reduce runoff volumes, and storage of the 100-year storm;
#Quality treatment provided using an oil/grit separator immediately upstream of each of the infiltration chambers, filtration through the infiltration chamber, and finally a stormwater management facility provided prior to discharging from the site.
#Quality treatment provided using an [[Oil and Grit Separator|oil/grit]] separator immediately upstream of each of the infiltration chambers, filtration through the [[infiltration chamber]], and finally a stormwater management facility provided prior to discharging from the site.
#Final erosion control provided within the stormwater management facility, controlling release rates to maintain the existing condition erosion exceedance values.
#Final erosion control provided within the stormwater management facility, controlling release rates to maintain the existing condition erosion exceedance values.
#Final design required both LIDs to reduce the overall runoff volumes, but also sub-surface storage chambers to provide quantity control for rare storm events up to the 100-year design storm. Due to large area required for truck parking, limited opportunities for more landscaping to promote [[evapotranspiration]], runoff volumes increased beyond ability of LIDs to negate the need for quantity control.
#Final design required both LIDs to reduce the overall runoff volumes, but also sub-surface storage chambers to provide quantity control for rare storm events up to the 100-year design storm. Due to large area required for truck parking, limited opportunities for more landscaping to promote [[evapotranspiration]], runoff volumes increased beyond ability of LIDs to negate the need for quantity control.