Darren recently joined Hazen and Sawyer as a National Water Applications Specialist within the Firm’s Drinking Water Practice. Darren recently retired as an environmental engineer with EPA's Office of Research and Development in Cincinnati, Ohio after 34 years. Darren has investigated and published works on drinking water systems, including work on distribution system corrosion control and water quality; biological water treatment; and iron and arsenic removal. Darren holds a Ph.D. in environmental engineering from the University of Illinois, an M.S. in environmental engineering from the University of Cincinnati, and a B.S. in civil engineering from the University of Akron.