John Marr, PEChief Operating Officer

John Marr, PE, is our Chief Operating Officer for corporate operations and a principal involved in municipal and industrial surface water assessments for NPDES permitting, waste load allocations, TMDLs, CSO, and stormwater issues. John’s experience features nearly 40 years with LimnoTech working on hundreds of projects and water systems in over two dozen states. His primary engineering expertise is assessment and modeling of water quality, and hydraulic and hydrologic processes of receiving waters, sewers, tunnel hydraulics, and agricultural and urban watersheds. John pioneered the development and use of complex runoff, sewer conveyance, tunnel surge, and water quality models, advancing the confidence in forecasting the costs, benefits and risks of control programs over the full range of environmental conditions and variability. John has BSE and MSE degrees from the University of Michigan. John works at LimnoTech’s Corporate Headquarters in Ann Arbor, Michigan.

Tel: 734-332-1200

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