less paved area = less stormwater run-off = more returned to the ground
<<< average precipitation yearly in Montréal: +/- 162 days = +/- 10m >>>
TO LANDFILL
TO LANDFILL
topography considerations
LHJM --- very minimal slope
 ratio of turf area to
 Œblack top¹ has room
for improvement
File written by Adobe Photoshop® 5.0File written by Adobe Photoshop® 5.0
[stormwater retention] pervious materials / xeriscape
Christopher Alexander
³9% parking maximum so as not to destroy land²
Christopher Alexander
LEAD Technologies Inc. V1.01
permit water to enter ground by virtue
of porous materials or by large spaces
in material [gravel, crushed stone, open
paving blocks] used for driveways,
parking areas, walkways, + patios
MINIMIZE RUNOFF
INCREASE INFILTRATION