SW Edmonton Police Station
City of Edmonton
Edmonton, AB

Al-Terra’s main challenge was to incorporate sustainable, low impact development (LID) solutions to site drainage to achieve LEED Silver certification for this 2.4 hectare site. Roof runoff is collected in a cistern and re-used for irrigation, and for toilet flushing. Parking lot runoff is collected in bioswales (gently sloped sides filled with vegetation), and made available for infiltration and uptake by vegetation. A great deal of research was undertaken on permeable pavers to further reduce runoff, but this element was not pursued following a cost-benefit analysis.