HELIX Landscape Architect R. Brad Lewis, ASLA will be a presenter at the U.S. Green Building Chapter Meeting on September 21, 2011, to be held at the Urban Corps facility located at 3127 Jefferson Street, San Diego, CA.  Brad will present a case study example of the HELIX headquarters pilot project for the new Sustainable Sites Initiative (SITES), which is a rating system design to establish and encourage sustainable practices in landscape design, construction, operations, and maintenance.  Guests at this event will also be invited to tour the Rooftop Garden at the Urban Corps’ LEED certified facility.  The Rooftop Garden features an “edible wall”, drought-tolerant landscaping, native plants, a water capture system, and composting and vermiposting stations.