Retained to investigate the Science World site, the former EXPO 86 Ontario Pavilion, to complete a human health risk assessment to determine if it was “safe” for Science World to open its doors to the public. Engaged by Bosa Development to investigate the lands now occupied by Citygate – our early work at this site included yet another risk assessment, the first used in connection with the redevelopment of a former industrial site to a residential use in Greater Vancouver.  For more than a decade, we continued with Bosa Development through the first four of the total five phases of this development.