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GES <br /> • GENESIS ENGINEERING&REDEVELOPMENT <br /> The closest and most available land for background sampling that has similar conditions to <br /> the Site prior to landfilling is the farm area immediately east of the Site. Prior to landfilling, <br /> the Site was close to or below sea level, and surrounded by levees. Review of the U.S. <br /> Department of Agriculture Soil Conservation Service Holt Quadrangle Soil Map shows the <br /> soil in the vicinity of the Site consists primarily of clay loam. GE&R's logging of native <br /> soils beneath the drill mud fill on Site suggests that the Site is underlain by clay loam similar <br /> to that identified on the adjacent property proposed for background sampling. As such, <br /> native soils on Site and on the adjacent property should exhibit similar natural chemical <br /> properties. <br /> The Work Plan incorporates the following documents, which are included as Appendices: <br /> 1. Sampling and Analysis Plan("SAP")—Appendix A <br /> 2. Quality Assurance Project Plan("QAPP")—Appendix B <br /> 3. Health and Safety Plan ("HASP")—Appendix C <br /> 3.1 Task 1 —Pre-Field Activities <br /> • Pre-field activities include negotiating a property access agreement, marking proposed <br /> reconnaissance boring locations; obtaining required permits; managing and scheduling <br /> subcontractors; field logistics and coordination; and notifying RWQCB staff of scheduled <br /> field tasks. Pre-field activities will commence upon RWQCB approval of this Work Plan. <br /> 3.2 Task 2—Collecting Reconnaissance Soil Samples <br /> Samples of clay loam in the vicinity of the Site will be collected and analyzed to establish <br /> background soil concentrations. The proposed background borings are located east of the <br /> former Arcady Disposal Facility, as shown of Figure 3. Thirteen soil samples will provide <br /> chemical data to establish background soil quality and assist in determining soil cleanup <br /> goals for closure of the Site. Soil sampling and analysis will be conducted in accordance <br /> with the SAP (Appendix A)and QAPP (Appendix B). <br /> • William DePaoli Property 3 of 5 <br /> Work Plan to Establish Background Soil Concenhations <br /> February 2012 <br />