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Matthew J. Rodrigues <br />Re:Proposal to Provide a Corridor Study <br />October 23, 2009 <br />Page 2 <br />Database; Record <br />Search Radius <br />Federal RCRA Generators List <br />Site and Adjoining <br />State-Equivalent NPL List ECSIS <br />1.0 mile <br />State Fire Marshal's Spill Response List <br />0.5 miles <br />Oregon Permitted Landfill List <br />0.5 miles <br />State Leaking (L )UST List <br />0.5 miles <br />State Certified UST List <br />Site and Adjoining <br />Task 1b: Site Reconnaissance <br />PBS shall conduct a Project Corridor reconnaissance that shall consist of systematically traversing the <br />Corridor and viewing adjacent properties from roadways and public access areas. Photographs <br />documenting Project Corridor observations shall be provided with the final report. The reconnaissance <br />shall be used to identify potential sources of contamination that could impact the proposed project <br />during construction or that could result in Agency acquiring contaminated property. PBS is not allowed <br />to enter any private property or contact the property owners or occupants without a permit of entry <br />supplied by the Agency. <br />Task 1c: Historical Research <br />PBS shall conduct historical research to identify past uses of the Project Corridor and adjacent <br />properties. Such research shall include one or more of the following: <br />• Sanborn Fire insurance Maps <br />• Aerial Photographs <br />• Reverse City Directories <br />• Historic property ownership/occupancy records or building permits <br />The resource (or combination of resources) selected must, if possible, provide historic information <br />regarding land use back at least 50 years at 10 year intervals, or PBS will demonstrate that such <br />information is not readily available. <br />Task 1 d: Corridor Study Report <br />PBS shall prepare a draft Corridor Study report summarizing the information obtained through Work <br />Tasks 1 a, 1 b and 1 c. The report shall include field observations, environmental database information, <br />historic land use, a scaled map showing the location of all identified potential sources of contamination, <br />photographs, copies of historic data, copies of state and federal databases, copies of relevant portions <br />of the Oregon Department of Environmental Quality files for sites which may impact Project <br />construction, an AASHTO Initial Site Assessment Checklist (a single page document) and any other <br />relevant documentation. The report shall include conclusions that identify specific sources of <br />contamination that could impact the Project Corridor or the proposed construction work. The report <br />shall also include recommendations for further investigation or remediation, along with cost estimates <br />for such work. PBS shall use the Agencies report template to structure the report. <br />