Cole Sigmon was a graduate student with Dr. Linden from 2008-2011 and graduated with a MS聽in Environmental Engineering. 聽 聽During his聽time at the 精品SM在线影片 he researched ozonation of wastewater for inactivation of viruses. 聽After graduation, he went on to work as an Engineer at Boulder Wastewater Treatment Plant and he is now Engineering Project Manager for the City of Boulder, Colorado.