Cole Sigmon was a graduate student with Dr. Linden from 2008-2011 and graduated with a MS in Environmental Engineering.   During his time at the Â鶹¹ÙÍø he researched ozonation of wastewater for inactivation of viruses.  After graduation, he went on to work as an Engineer at Â鶹¹ÙÍø Wastewater Treatment Plant and he is now Engineering Project Manager for the City of Â鶹¹ÙÍø, Colorado.