The International Erosion Control Association (IECA) reports that member Craig Knock passed away on 27 December 2009. He was a leader in the field of erosion control, landscaping and hydroseeding, and he was only one of three professionals in South Dakota to become a Certified Professional in Erosion & Sediment Control (CPESC). He specialized in reclamation of various mines and oil fields. We extend our sympathies to his family and friends.
