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Principal, Hanrahan Environmental
Mr. Hanrahan is a Certified Professional in Erosion and Sediment Control and has more than 43 years of industry experience. He has made presentations nationally and in Taiwan, the Dominican Republic, and Canada for many organizations, including the International Erosion Control Association, Land Improvement Contractors of America, the Geotechnical Fabrics Institute, and the American Water Works Association.
His articles have been published in many magazines, including Erosion Control, Land & Water, Geosynthetics, and Landscape Architect & Specifier News.