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Mr. Chris Dressel March 4,2014 Page 13 of 18 samples will be collected from each probe location and a minimum of two groundwater samples will be collected from this area. 4)Buried Foundation and Debris Four(4) soil probes will be advanced surrounding WPI GP-4 (where soil impacts were identified in the 2012 Phase II ESA, northwest corner of open lot south of Building 113) using the step-out procedure outlined in the Indiana RCG. The soil probes will be advanced to the water table. Soil samples will be collected from each probe and a minimum of two groundwater samples will be collected from the location. In addition, fourteen (14) soil probes will be advanced within the perimeter of the buried foundation and debris outside of GP-4. Background information indicates that this area is comprised of at 3-5 feet of buried foundation and debris. Also, a portion of the area was formerly occupied by a paint shop. The soil probes will be advanced to a minimum depth of 8 feet below the ground surface. Soil samples will be collected from each probe location. A minimum of four soil probes will be advanced to the water table from which a groundwater sample will be collected. If field conditions dictate, additional soil probes maybe advanced to the water table and additional groundwater samples would be collected. Conversely, if less buried debris is encountered then the number of soil probes may be reduced from fourteen. Analytical Work Soil and/or groundwater samples collected during this assessment will be collected in appropriate containers and submitted to an approved laboratory for analysis. Specifically, the analyses described below, where applicable, were obtained from the Indiana Department of Environmental Management (IDEM) Remediation Program Guide — Table 3.1, Potential Petroleum Contaminants,updated July 9,2012. I) Transformer Room #3 Samples obtained at this location will be submitted for the following analysis: • Polychlorinated Biphenyls(PCBs) (EPA Method 8082); For estimating purposes, this proposal includes costs to analyze up to two (2) soil samples and two(2)groundwater samples each.