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POW"LARAMIDE <br /> Statement of Qualifications �Em konmenta,,LLc <br /> Walter is experienced in the use of a wide variety of investigative and analytical tools. He <br /> has conducted field investigations at active and abandoned mining, industrial, commercial, <br /> and uncontrolled waste disposal sites throughout the United States. His experience <br /> includes the use of a variety of public-domain and proprietary computer codes for <br /> quantitative assessment of groundwater and multi-phase flow, contaminant transport, and <br /> remediation-system design and optimization. <br /> Walter earned his Master of Science degree in hydrology and water resources from the <br /> University of Arizona. He earned his Bachelor of Science degree in geology from the <br /> University of Wisconsin - Madison. He is a registered Professional Geologist in California, <br /> Wisconsin, and Wyoming and a Listed Environmental Scientist in Colorado. Walter is a <br /> member of the American Geophysical Union, the Association of Ground Water Scientists <br /> and Engineers, the American Chemical Society, and the Colorado Groundwater <br /> Association. <br /> Through its associations with other environmental professionals and firms, Laramide offers <br /> additional capabilities in geochemistry, risk assessment, environmental investigation and <br /> remediation, and data management/GIS. <br /> Laramide's staff and affiliated professionals maintain current 40-hour OSHA certification <br /> for operations at hazardous waste sites and MSHA certification for activities at mine sites. <br /> PROJECT EXPERIENCE <br /> We have worked on environmental projects located throughout the United States. <br /> Descriptions of representative project experiences are provided below. Please contact <br /> Laramide with any questions regarding our experience and capabilities to perform specific <br /> projects. <br /> Site Investigation and Remediation <br /> Abandoned LeadlZinc/Gold Mine, Colorado: Walter acted as project manager and <br /> hydrogeoiogist for an Engineering Evaluation/Cost Analysis (EE/CA) of an abandoned <br /> mine near Breckenridge, Colorado. The underground mine had refilled with <br /> groundwater after mining ceased in the 1960s. Groundwater from the mine pool <br /> containing elevated zinc concentrations at near-neutral pH levels discharges through <br /> seeps and springs into an alluvial aquifer and the surface water of a nearby stream <br /> system. One spring was identified as causing the majority of the impact on the stream <br /> system. Aquatic life is adversely impacted by the metal concentrations in the <br /> discharged water. <br /> Groundwater and surface-water samples were collected from a network of monitoring <br /> locations to document the extent of the impacts from the mine discharge. Based on the <br /> geochemical information gathered during the investigation, an innovative in-mine <br /> neutralization system was pilot tested. <br /> The pilot test revealed that the groundwater discharged at the impacted spring did not <br /> emanate from the area of the mine pool affected by the remediation system. An <br /> August 2004 Page 3 of 7 <br />