MYDC0201.JPGDuffield Associates has been a leader in sustainable site design, Low Impact Development (LID), innovative stormwater management, and green infrastructure for over 30 years.  Our areas of expertise include Low Impact Development Site Design, Brownfield Redevelopment, Sustainable Stormwater Management, Innovative Wastewater, On-site Renewable Energy, Materials Reuse and Recycled Content and Construction Waste Management.