Ms. Tallman is a quantitative hydrogeologist and Principal with the Montana GSI office. She has 19 years of experience in the consulting industry. Ms. Tallman leads quantitative hydrogeologists, geologists, and environmental scientists in providing high quality hydrogeologic characterization and interpretation for a variety of groundwater issues. Ms. Tallman’s technical strength is in hydrogeologic characterization and groundwater flow and solute transport modeling. She actively performs numerical modeling and oversees others in numerical modeling projects to aid clients in project planning and solving groundwater issues. She has vast experience preparing and executing study designs to characterize bedrock groundwater systems for the purpose of quantifying dewatering rates and designing dewatering programs for the mining industry. She also has extensive experience characterizing and simulating systems to evaluate potential impacts as part of permitting actions, such as, aquifer protection permits, discharge permits, NEPA, and other permits. Ms. Tallman has characterized and simulated groundwater flow and solute transport for multiple projects to evaluate potential receptors, remedial alternatives, remedial design, and as part performance monitoring. In addition, she is sought after to provide out of the box planning/problem solving and to review technical work performed by others.
The projects she has worked on span the globe including sites in Africa, South America, Central America, Mexico, Canada, the Pacific Islands, and across the USA. She regularly interacts with industrial and mining clients, lawyers, Department of Environmental Quality (DEQ) multiple states, Environmental Protection Agency (EPA) Region 8, Bureau of Land Management (BLM), US Army Corp of Engineers (USACE), and Ghana Ministry of Mining.