He also has significant engineering experience in the areas of design, construction management, operations assistance, maintenance, and community acceptance. Serving as a civil and environmental engineering consultant for private, institutional, and governmental clients, Mr. Dutill has major nationwide expert witness and project experience in hydrology, stormwater management, flooding, drainage, runoff, sewer systems, sanitary sewage, wastewater treatment, backups, overflows, septic systems, surface water, groundwater, hydrogeology, erosion, grading, hydraulics, and floodplains