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30 October 2015 <br />AGE Project No. 14-3154 <br />Page 2 of 4 <br />glass debris and dust waste streams were not managed/stored on the surface. <br />Trenching on the waste management area footprint and surrounds was conducted to <br />evaluate the limits of waste buried (T1 to T23) and provided for additional Trench soil <br />sampling (T24 to T91). Trench locations are illustrated in Figure 2. <br />Soil samples and grab groundwater samples were collected from borings and trenches. <br />Soil samples were analyzed for CAM 17 metals, volatile organic compounds (VOCs), <br />polychlorinated bi-phenols (PCBs), polynuclear aromatic hydrocarbon (PNA), polycyclic <br />aromatic hydrocarbons (PAH) or semi -volatile organic compounds (SVOCs), Dioxin and <br />Furan and Total petroleum hydrocarbons. Detections of organic compounds are <br />summarized. <br />Analytical results for the CAM 17 analysis detected concentrations are listed in the <br />attached tables. Water sample analysis for CAM 17 Metals is also attached. <br />The majority of the water samples have demonstrated no direct impact to the water <br />quality or significant impact to the shallow groundwater. Trench sample T64 was <br />collected within the waste glass and demonstrated petroleum hydrocarbons presented <br />in the shallow groundwater, below waste. Subsequent samples collected within the <br />excavation area did not have detections of petroleum hydrocarbons. <br />- boring groundwater sampled collected had detections of • and <br />Additionally, soil sample collected in the areas of waste glass have not been impacted <br />by the operations of wastewater and glass waste handling/ burial nor has demonstrated <br />significant residual metals concentrations. None of the detections of metals exceed <br />hazardous waste criteria and the additional analysis of the soil for soluble metals <br />concentrations reportedly present at the glass waste handling/ burial areas have not <br />been hazardous. A total of four shallow soil samples collected outside the waste areas <br />(within former surface water depressions) indicated detections of PCBs. <br />Soil pile samples with detections of metals, were below the CHHSL concentrations and <br />consistently detected low metals concentrations. <br />Generally, tan, brown to dark brown, silts and sands were encountered between surface <br />grade and approximately 15 feet bsg. <br />Advanced GeoEnvironmental, Inc. <br />