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10 August 2015 <br /> AGE Project No. 14-3154 <br /> Page 2 of 3 <br /> Soil samples and grab groundwater samples were collected from borings and trenches <br /> have demonstrated no direct impact to the water quality or significant impact to the <br /> shallow groundwater. Additionally, soil sample collected in the areas of waste glass <br /> have not been impacted by the operations of wastewater and glass waste handling/ <br /> burial nor has demonstrated significant residual metals concentrations. None of the <br /> detections of metals exceed hazardous waste criteria and the additional analysis of the <br /> soil for soluble metals concentrations reportedly present at the glass waste handling/ <br /> burial areas have not been hazardous. Soil pile samples with detections of metals, were <br /> below the CHHSL concentrations and consistently detected low metals concentrations. <br /> Soil samples were analyzed for CAM 17 metals. Analytical results for the CAM 17 <br /> analysis detected concentrations are listed in the attached tables. Water sample <br /> analysis for CAM 17 Metals is also attached. <br /> Generally, tan, brown to dark brown, silts and sands were encountered between surface <br /> grade and approximately 15 feet bsg. <br /> PROPOSED WASTE DISPOSAL <br /> During the investigation of the former PA site, the majority of the trenches <br /> demonstrated minor percentages of glass. A set of trenches at the southwest boundary <br /> of the property (T46, T48, T50, T58 and T59) demonstrated a differing thickness <br /> (topology) of the potentially buried waste. The waste strata over native soil ranged from <br /> 18 inches at trench T46 to 10 feet deep at trench T58. <br /> Remediation at this location will involve use of the excavator or backhoe, which will <br /> trench down to native soil beneath any waste discovered (the current soil cap will be <br /> removed). <br /> AGE anticipates that approximately 2,000 square feet of area (30 to 35 feet north to soil <br /> and 65-70 feet east to west) has demonstrates some waste glass and debris, with a <br /> variable thickness. Removal of the waste to a Class II landfill is proposed. Trenching or <br /> excavations will remove the waste and be required to adequately define the horizontal <br /> and vertical extent of the potentially buried waste. Excavation to will be required to <br /> depths of 10 feet at some locations, with the use of an excavator through the <br /> encountered waste glass and near native soil. <br /> The excavation producing a volume of 650 cubic yards of exposed and potential waste, <br /> will remove the waste and reduce future need to mitigate waste. Waste glass is <br /> proposed to be loaded into end dump trucks for transport to Forward Landfill under <br /> special waste manifest. Waste which has been stockpiled will be loaded for trucking and <br /> disposal at an appropriate landfill. <br /> Advanced GeoEnvironmental,Inc. <br />