On November 19, Chelsea Christenson, PE, CPSWQ, LEED AP BD+C, of Nitsch Engineering will join Maria Bellalta from the Boston Architectural College (BAC), Elliott Laffer from Boston Groundwater Trust, and Robert Uhlig from Halvorson Design Partnership in presenting Sustainability in the City: Solving Environmental Challenges in the Back Bay at ABX. Using the BAC's new Green Alley as a case study, this team will present how close collaboration and creative thinking have helped integrate sustainability into a complex and tight urban site.