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June 30, 2016. Blacksburg, Virginia. <br />
 In one of the labs Marc Edwards oversees, a series of tests are being down on various types of water heaters to determine there susceptibility to the growth of the legionella bacteria. During the Flint, MI water crisis 12 people have died from exposure to legionella. <br />
Marc Edwards is a civil engineering/environmental engineer and the Charles P. Lunsford Professor of Civil and Environmental Engineering at Virginia Tech. He is an expert in water quality and corrosion, and his work in Washington DC  and in Flint, Michigan helped to expose high levels of lead contamination in the water supplies of those two cities, triggering investigations into the cause of the pollution.