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Richard L Nenry <br />Chief Hvdroaeoloaist <br />Confidential Site, CA: Senior hydrogeologist, performed <br />hydrogeologic characterization and evaluation of in-situ <br />enhanced bioremediation of chlorinated solvents. Modeled <br />potential subsurface remediation alternatives using VENTING <br />and BIOPLUMEII. <br />Proposed Limestone Mine, CO: Senior hydrogeologist, <br />performed hydrogeologic characterization and water quality <br />monitoring for a proposed limestone mine to support a CMLRD <br />t 12 permit. Evaluated the effect of mining on the aquifer <br />beneath the site and the potential to influence migration of <br />contaminants from a landfill north of the site. Studied the <br />occurrence of selenium in site soils, its potential for leaching, <br />and impact to groundwater. <br />Proposed Limestone Mine, CO: Senior hydrogeologist, <br />conducted 3-D geologic modeling using TECHBASE to support <br />preliminary mien design efforts and estimation of ore reserves. <br />Rocky Flats Environmental Technology Site, Jefferson <br />County, CO: Senior hydrogeologist, provided geological and <br />hydrological support for a gravel mine permit on the buffer <br />zone. <br />US Ecology, LLRW Disposal Facility, Beatty, NV: Chief <br />hydrogeologist, conducted a pathways analysis in support of a <br />landfill liner waiver application. Analysis included a <br />determination of the optimal waste cell and cover design using <br />the HELP model, and predictive modeling of a waste release to <br />the vadose zone to determine its impact on groundwater water <br />quality in the saturated zone. The release simulation modeling <br />was performed using the UNSAT2 and MOC codes. The <br />pathways evaluation resulted in a successful liner waiver <br />application that saved the client over $2M in design, <br />engineering, and maintenance costs. <br />US Ecology, Ward Valley Low-level Radioactive Waste <br />(LLRW) Land Disposal Facility, Mojave Desert, southern <br />CA: Chief hydrogeologist, prepared comprehensive geologic, <br />mineral resource, geochemical, surface water, and groundwater <br />characterization sections for the license application of the <br />LLRW land disposal facility. Studies included the <br />interpretation of subsurface geological, geotechnical and <br />geophysical data to depths over 2,000 feet, evaluation of water <br />quality data from monitoring wells over 900 feet deep, <br />geochemical modeling using PHREEQE and MINTEQA2, <br /> <br />