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2.0 Scope of Work <br /> The scope of work for the investigation was presented in IT's workplan dated February 2, 2001, <br /> which was approved for implementation by Caltrans (IT, 2001 a). The following scope of work <br /> was conducted: <br /> 1. Permitting and Mobilization <br /> 2. Field Investigation <br /> 3. Laboratory Analyses <br /> 4. Site Investigation Report Preparation <br /> 2.1 Planning and Permitting <br /> Planning and permitting included a pre-work site visit, preparation of a workplan and health and <br /> safety plan, and acquisition of required permits. <br /> A pre-work site visit was conducted at the site on January 9, 2001,by Mr. Don Bransford of IT <br /> and Mr. Michael Robinson of Caltrans. Locations for soil borings were observed, and the scope <br /> of work and objectives were discussed. <br /> A site-specific health and safety plan(IT, 2001b)was prepared for the site in general accordance <br /> with 29 CFR 1910.120 and Title 8, California Code of Regulations, Section 5192. The health <br /> and safety plan included safety procedures for work to be performed at the site, chemical hazard <br /> information, site safety officers, and preferred medical emergency locations. <br /> Drilling permits were obtained from the San Joaquin County Public Health Services, <br /> Environmental Health Division (PHS-EHD) for two borings advanced to groundwater. A <br /> encroachment permit was obtained from Caltrans for this project. Copies of the permits are <br /> presented in Appendix A. <br /> 2.2 Field Investigation <br /> The field investigation was conducted on February 7 through February 9, 2001. This task <br /> included a geophysical survey to evaluate the presence of underground fuel storage tanks (USTs) <br /> on selected parcels and the advancement of 55 soil borings for collection of soil samples. <br /> Temporary well casing was inserted into two of the boring to facilitate collection of groundwater <br /> grab samples. The horizontal and vertical locations of the borings were established using a <br /> Trimble GPS Pathfinder TM Pro XRS global positioning system (GPS). The GPS utilized a GPS <br /> SacDP-N:Irnncjp]iProjectsl8218111641ReportII20 Austin repon.doc 2-1 <br /> S/?1/01 <br />