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Meet the CEPSCI Team


John C. Hayes, Ph.D., P.E. -
Dr. Hayes has over thirty (30) years of Photo of John Hayesexperience in research, teaching and consulting involving hydrology, erosion prevention, water quality sedimentology analysis. Throughout this period, his primary emphasis has been the impact of changing land use on the environment. He has focused on providing technical training to contractors, engineers, surveyors, landscape architects involved in urban development. Co-author of the text, Hydrology and Sedimentology of Small Catchments, Dr. Hayes led technical development of South Carolina’s Certified Erosion Prevention and Sediment Control Inspector (CEPSCI) program which recently received the 2006 Outstanding Team Award from the Cooperative Extension Service. Since joining Clemson University in 1985, he has been an associate professor, professor, department chair, and associate dean for environmental conservation. He is located in Clemson, South Carolina. In addition to the CEPSCI program, Dr. Hayes also led development and implementation for a Certified Stormwater Plan Reviewer (CSPR) for South Carolina. Results from his research and outreach activities are used in the design, installation and inspection of almost all regulated construction sites in South Carolina. He has also presented numerous workshops and invited papers across the country dealing with design or inspection of erosion and sediment controls and other environmental issues.


Cal Sawyer photoCalvin Sawyer, Ph.D. - Dr. Sawyer is the Associate Director for Clemson University's Center for Watershed Excellence, and he has extensive experience in the Clemson University Extension and Public Service Program.  In his role as Coastal Environmental Quality Specialist, he investigated and educated individuals about nonpoint source pollution, aquatic nuisance species, and toxic algae. In 2003, be began work as the Extension Water Quality Coordinator at Clemson where, among other endeavors, he coordinated development and implementation of numerous water quality programs throughout the state such as Carolina Clear, South Carolina's Certified Erosion Prevention and Sediment Control Inspector (CEPSCI) and Certified Stormwater Plan Reviewer (CSPR). Dr. Sawyer routinely provides water quality and stormwater-related information to various clientele groups, including homeowners, community and government officials, public works and planning staffs, engineers, landscape architects, developers, contractors, and other professional decision-makers. He also interacts regularly with colleagues within the USDA Southern Region network, which aligns geographically with the EPA Regions 4 and 6. He currently holds a faculty position in the Department of Agricultural and Biological Engineering. Dr. Sawyer is a recipient of the Silver Hammer Award from the National Partnership for Reinventing Government and the Office of the Vice President as well as the 2001 and 2003 AT&T Communications Awards and the 2006 Clemson University Cooperative Extension Service Team Award for Superior Performance.