Michelle Carlson, P.E, of BL Companies shows a diagram illustrating the planned installation of a subsurface stormwater systemon the Doubletree Hotel proper .
Experts advise on sustainable issues for Norwalk zoning rewrite thehour.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from thehour.com Daily Mail and Mail on Sunday newspapers.