Lowham Walsh, LLC

Lowham Walsh LLC, a subsidiary of Ecology and Environment, is an engineering and environmental consulting company specializing in applied hydrologic science, civil and environmental engineering analyses and design.  Founded in 1997 and reestablished in 2010, Lowham Walsh is a leader in water management for the petroleum industry throughout Wyoming and the Western U.S. and is a growing force in the civil infrastructure consulting engineering community.  We provide a wide range of environmental services, including hydrologic analysis and stream gaging, reservoir design and hydraulic analysis; environmental impact assessment and monitoring for landfills and mining activities; oil and gas development; asbestos testing, preparation of plans for abatement, and removal oversight; industrial hygiene investigations; site assessments; permitting requirements; and Geographic Information Systems (GIS) mapping and analyses.   Our offices are located in Lander and Gillette, Wyoming; and Bismarck, North Dakota.