David Dilks, PHD, is a Senior Principal at LimnoTech responsible for the assessment of water quality issues, primarily through the development and application of mathematical models. Dave has directed more than 250 studies on water bodies and watersheds nationwide. This work has included watershed simulation models, hydrodynamic models, and water quality models for conventional and toxic pollutants. Dave has been involved in the TMDL program since its outset, having conducted or served as a technical reviewer for over 200 TMDLs. He has co-authored three national technical guidance manuals on watershed and water quality modeling and assessment and served as a technical reviewer for EPA guidance documents, professional journals, and research proposals. Dave works at LimnoTech’s Corporate Headquarters in Ann Arbor, Michigan.