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Timothy DeGraff, MS, PWS
Principal, Senior Wetland Scientist
Mr. DeGraff is a Certified Professional Wetland Scientist who has co-instructed the 40-hour wetland delineation course offered through San Francisco State University. Mr. DeGraff has received a BS in Environmental Biology from Plymouth State University and a MS in Environmental Management from University of San Francisco. He has conducted wetland delineations throughout the United States with extensive experience in California. Mr. DeGraff manages complex projects and is a regulatory specialist who has obtained numerous permit authorizations for large projects involving wetlands, endangered species, and water quality issues. He has also overseen compliance with permit conditions throughout the various stages of project implementation. Currently, Mr. DeGraff supervises over 13 biologists and is responsible for coordinating field activities and the completion of work products.
Mr. DeGraff has served as the lead biologist for wetland mitigation/restoration projects and has developed restoration and enhancement designs including planting plans, soil specifications, and conceptual grading plans to meet the mitigation requirements of the U.S. Army Corps of Engineers (Corps). He has prepared and implemented vegetation monitoring reports for restored wetlands, including development of sampling protocols and contingency measures to meet performance criteria. Mr. DeGraff is also experienced in designing and permitting wetland mitigation and wildlife conservation banks in California.
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