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. GES GENESIS ENGINEERING&REDEVELOPMENT 3.1 Site Reconnaissance, Preparation, and Restoration A Site reconnaissance will be conducted to locate and mark the proposed boring locations. The boring locations shall also be evaluated for access routes. Traffic control setup (signs, barricades, etc.) and maintenance will be in accordance with the Work Area Traffic Control Handbook(W.A.T.C.H. Manual, endorsed by the American Public Works Association). Site preparation will include clearing the proposed boring locations of underground utilities and other obstructions for subsurface activities. The proposed boring locations will be adjusted as required based on the subsurface survey and other access or obstruction issues. Upon completion of field sampling activities, disturbed areas at the Site will be restored to a level that, as closely as practical, approximates the conditions encountered prior to starting field work. 3.2 Drilling Techniques All borings will be hand augured to a depth of 5 feet below ground surface ("bgs"), as an added precaution to avoid subsurface utilities or other structures. All drilling activities will conform to state and local regulations and will be coordinated by a Professional Geologist. The following procedures will be used for the drilling of each reconnaissance groundwater boring and collection of soil and reconnaissance groundwater samples. 3.2.1 Direct Push Direct-push drilling technology will be used to advance two borings for reconnaissance groundwater sampling. The direct push drilling process consists of a truck mounted direct- push hydraulic system used to push Geoprobe® and Hydropuncho assemblies to selected depth intervals. Using the Geoprobe tools, continuous soil samples will be collected for lithologic interpretation to an estimated depth of 45 feet bgs. At 5 foot depth intervals, soil samples will be collected for laboratory analyses. The bottom of the borehole will be advanced using the HydropuncO assembly to an estimated depth interval of 45-50 feet. At the selected depth interval the rod is retracted, exposing disposable retractable screen. All direct-push boreholes will be abandoned according to state and local guidelines. Completed boreholes will be grouted from the bottom up using a tremie pipe with a high- solids bentonite grout or bentonite Hole Plug®. The borehole will be backfilled to within 1- 2303 West Lane 3 of 11 Site Investigation Work Plan May 2009