Todd Redder, PE, is a senior environmental and water resources engineer whose principal expertise is the development and application of mathematical models for the evaluation of hydrodynamics, water quality, sediment transport, contaminant fate and transport, and ecosystem response in watersheds, rivers, lakes, and estuarine systems. He has served as the technical lead on numerous projects, including a wide range of advanced modeling applications involving EFDC, RCA/A2EM, WASP, SWAT, HSPF and other simulation frameworks. Todd also specializes in the design and implementation of custom web-based data management and decision-support tools, which are tailored to meet specific client and project needs. In addition, he has applied his computer programming and database development skills to generate an extensive collection of desktop-based modeling and data analysis tools and database/GIS applications for internal and client use. Todd works at LimnoTech’s Corporate Headquarters in Ann Arbor, Michigan.