Dr. Guha has a 20-Years of experience in hydrogeology and environmental engineering - specializing in development of subsurface numerical models to predict groundwater levels and fate-and-transport of solutes in the subsurface; field hydrogeologic investigations, encompassing design of pumping tests, dewatering design, packer tests, slug tests, tracer tests, low-flow sampling, and groundwater and soil remedial investigations (includes R&D design on new remedial technologies). Design work includes experience in Water Supply, Fossil Power, Nuclear, and Mining industry. Experience in geo-risk analysis, geological mapping, and landslide simulations. Hillol is a licensed Professional Engineer and a licensed Professional Geologist.