No. 2698 approving/authorizing the execution of an addendum to the Master Agency Agreement (Phase II Environmental Site Assessment at Oliver Industrial Park)

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Ms. Ann Kolata June 15, 2010 S131061.400.0001 Page 3 Area 15 — This area is located in the north central portion of Building #41A and is the location of former PCB - containing transformers and quench oil pits. Potential COCs include SVOCs and PCBs. Four soil borings are proposed. Area 20 - This area is located in the western portion of the Site to the west of Building #35 in the area of a former loading dock, as well as within the footprint of Building #356. During demolition activities, discolored soils were encountered in this area. Potential COCs include metals. Six soil borings are proposed. Building 46 — When this former building, located in the southwestern -most portion of the Site, was demolished solvents and paint waste were discovered. Although portions of soil and waste were removed from the Site and properly disposed, COCs including SVOCs, VOCs, and metals may remain at the Site. Three soil borings are proposed. Specific Scope of Phase 11 Work Hull proposes to perform the following tasks to address the objectives of the Phase II ESA, as described below: Task 1 Historical Data Review and Compilation; Generation of Phase II ESA Scope of Work and Health & Safety Plan; Project Management Hull has reviewed historical documentation to develop this Scope of Work and clarified certain data with Grauvogel & Associates, the City's contractor charged with oversight of environmental matters during demolition activities at the Site. Hull will also generate a Site - specific Health & Safety Plan that will be followed during implementation of the Phase 11 ESA Scope of Work. This task also includes project management duties including coordination with the laboratory and drilling subcontractors. Task 2 Intrusive Phase II Investigation of Soil The primary elements of the intrusive investigation include: direct -push soil borings to anticipated depths of approximately 4 to 20 ft. below ground surface (bgs); 2. analysis of one surface sample and, as applicable, one subsurface soil sample per soil boring - collected using a direct -push drilling rig — and to be tested for: • up to 99 samples collected at 42 soil borings, including quality assurance /quality control (QA/QC) samples, for Resource Conservation and Recovery Act metals using Method SW 846 6010/7000; • up to 48 samples collected at 15 soil borings, including QA/QC samples, for VOCs using Indiana Modified Method 5035; • up to 103 samples collected at 44 soil borings, including QA/QC samples, for SVOCs using Method SW846 8270/8270 SIM; and • up to 46 samples collected at 38 soil borings, including QA/QC samples, for PCBs using Method SW846 8081. Please note that Hull will collect and submit subsurface soil samples to the