Marc S. Theisen, formerly the Director of Business Development of SI Geosolutions, has over 20 years of experience in geosynthetics and erosion control and is a Certified Professional in Erosion and Sediment Control (CPESC). He is Chairman of the Erosion Control Technology Council (ECTC), a Directing member of the Geosynthetics Institute (GSI), and is a member and formerly served as Technical Vice President of the International Erosion Control Association (IECA). For those of you looking to contact Marc at his new venture,The Erosion Control Alliance, he can be reached at 3118 Bee Tree Lane, Signal Mountain, TN 37377 Phone: 423-605-5251 Fax: 423-886-9859 e-mail: marcmel@bellsouth.net.

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