Nick Petruzzi Nick Petruzzi is a Senior Engineer at Cox-Colvin & Associates, Inc. in Plain City, Ohio. Since 2004, Nick has been involved with the evaluation, design, construction, and operation of both established and innovative remedial alternatives for the treatment of contaminated soil and groundwater at industrial facilities under various regulatory programs. In addition, he provides management/technical support for clients with hazardous waste, NPDES, and air permits. Hydrogeological investigation, vadose zone and groundwater modeling, report preparation, and cost estimating are also among his responsibilities. Nick’s academic background includes extensive design, testing, and implementation of groundwater field sampling devices; and novel research in the realm of groundwater colloidal/microbial mobilization and characterization. Nick is a member of the ITRC Green and Sustainable Remediation Team. He earned a bachelor's degree in Geology and Environmental Science from Ashland University in Ashland, Ohio in 2002 and a master’s degree in Environmental Engineering from the University of Notre Dame in South Bend, Indiana in 2004. Nick is a registered professional engineer in Ohio.