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' David A. Sholes <br /> ' Senior Project Geologist <br /> Environmental Services Division <br /> ' REPRESENTATIVE PROJECTS <br /> ' ■ UST Program Manager, western United States <br /> Program manager including oversight of tank removal activities, initial investigative gas <br /> and soil remediation, quarterly monitoring, closure plans, and negotiations with <br /> regulatory agencies. Project included approximately 30 sites in the western United <br /> States. <br /> ■ Soil and Groundwater Investigation and Remediation, Fresno County <br /> Project manager of soil and groundwater investigation at Fresno industrial site. Past site <br /> uses included several bulk storage facilities for petroleum based fuels and manufacturing <br /> ' processes that included degreasing, plating, and paint operations. Each former site use <br /> left impacts to soil and/or groundwater. Multiple agreements with PRPs were negotiated <br /> to facilitate clean-up of the site. <br /> ' ■ Feasibility Study and Wastewater Disposal Design, Fresno County <br /> Project manager for geologic and hydrologic investigation of proposed disposal areas for <br /> a 200-employee facility in Fresno County. Issues of concern were impacts to shallow <br /> groundwater and nearby surface waters from high nitrates in wastewater. The <br /> investigation included water quality studies and evaluating aquifer characteristics. <br /> ' ■ Solid Waste Assessment Test (SWAT), Madera County <br /> Project manager for investigation of two landfills in Madera County. The landfills were <br /> ' former burn dumps. Issues of concern were organic and inorganic compounds within the <br /> landfills, hydrogeologic conditions beneath the landfills, and impacts to groundwater <br /> beneath them. Both landfills were closed without additional investigation or remediation. <br /> ' ■ Evaluation and Monitoring, Sanitary Landfills, Kern County <br /> Project manager evaluating hydrogeology and groundwater chemistry at sanitary landfill <br /> ' sites in Kern County. Issues of concern were regional groundwater flow patterns, <br /> upgradient groundwater chemistry, and the extent of landfill-derived organic and <br /> inorganic compounds in groundwater beneath and downgradient of the landfill. <br /> t3-516F.S (6/97) 2 The Twining Laboratories, Inc. <br />