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Walteff.Weinig, R.G. AdrianBrown <br /> Principal Hydrogeologist <br /> Education <br /> M.S., Hydrology, University of Arizona, 1991 <br /> B.S., Geology,University of Wisconsin, 1983 <br /> Professional Registration <br /> Registered Professional Geologist in California, Wyoming, and Wisconsin <br /> Industry Training <br /> OSHA 40-Hour Hazardous Waste Worker <br /> OSHA 8-Hour Hazardous Waste Site Supervisor <br /> MSHA Certified Surface Miner <br /> Risk Assessment for Environmental Professionals short course, 1990 <br /> Experience <br /> Principal/Senior Hydrogeologist, Adrian Brown Consultants, Inc., 1997-present <br /> -responsibilities include management and performance of hydrologic and hdrogeologie projects related <br /> to site investigation, remediation, mining,and water-resource assessments;multi-phase flow and <br /> contaminant transport modeling for site evaluation and remedial system design; and technical support of <br /> litigation-related projects. <br /> Senior/Project Hydrologist, Hydro Geo Chem, Inc., Tucson Arizona, 1988-1997 <br /> -responsible for successful completion of varied environmental projects including closure of mine <br /> tailings impoundments;evaluation of the extent of groundwater and vadose-zone contamination by <br /> organic and inorganic compounds;development of remedial designs;optimization of groundwater and <br /> vadose-zone monitoring networks;water resources assessments and wellhead protection studies; and <br /> environmental permitting for manufacturing facilities. Extensive experience with broad range of <br /> numerical models,including single-phase and multi-phase modeling in 1,2, and 3 dimensions. <br /> Performed field investigations including monitoring well design and installation, soil-gas surveys, and <br /> remedial system pilot studies. Provided technical support for expert-witness testimony. Projects located <br /> throughout the western and midwestem United States. <br /> Co-op Hydrologist,HNTB, Phoenix, Arizona, 1987 <br /> - developed designs and specifications for subsurface dewatering of concrete structures; prepared storm- <br /> water flow calculations;prepared summary reports for highway drainage system designs. <br />