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+ 0 Phase 11 ESA Work Plan San Joaquin Regional Rail Commission Page 3 Condor will coordinate all work with the San Joaquin County Environmental Health Department (SJCEHD), the Client, and subcontractors. 3.2.2 Direct Push Boring Procedures Prior to commencement of fieldwork, a tailgate safety meeting will be held and the site-specific Health and Safety Plan will be discussed with, and presented to, all field personnel for their signatures (Appendix B). Four direct push borings will be advanced to groundwater near the comers of the Site for the purpose of collecting groundwater samples. The approximate locations of the proposed borings are shown in Figure 3,Appendix A. One groundwater sample will be collected from each boring. It is anticipated that groundwater will be encountered at approximately 40 feet bgs. The groundwater samples will be collected using a push-type groundwater sampler. The sampler and associated push rods will be thoroughly cleaned before each sample is collected using a solution of laboratory-grade, non-phosphate detergent and deionized water, and double rinsing with deionized water. The sampler has a sealed, retrievable stainless steel screen. The sampler will be pushed in a closed position to the desired sampling interval. The sampler push rod will then be retracted to expose the inlet screen. Groundwater will flow hydrostatically from the formation into the inlet screen. A groundwater sample will be retrieved from within the screen with a length of clean, 3/8-inch diameter polyethylene tubing equipped with a check valve at the bottom. The tubing will be hand actuated to draw groundwater up inside the tubing. The groundwater sample will be discharged directly from the tubing into laboratory supplied sample containers. The sample containers will be sealed, labeled, and delivered under chain-of- custody procedures to a California-certified laboratory for analyses. Upon completion of the borings and sampling, the borings will be grouted with neat cement. 4.0 LABORATORY ANALYSES The soil and groundwater samples will be shipped to McCampbell Analytical, Inc., a California-certified laboratory (DHS #1644) located in Pittsburg, California for analysis. The six surface and six subsurface soil samples collected from the former railroad and rail spurs will be analyzed for benzene,toluene,ethyl benzene, and total xylenes (BTEX) by EPA Method 8260B; total petroleum hydrocarbons quantified as gasoline (TPH-G), motor oil (TPH-MO), and diesel (TPH-D) by EPA Method 8015C; and for lead and arsenic by EPA Method 6020A. The six surface and six subsurface soil samples collected around the perimeter of the train depot will be analyzed for organochlorine pesticides by EPA Method 8081B and for lead by EPA Method 6020A. The four groundwater samples will be analyzed for Semi-Volatile Organic Compounds (SVOCs) by EPA Method 827013; for Volatile Organic Constituents (VOCs) by EPA Method 8260B; and for TPH-G, -D, and-MO by EPA Method 8015C. 5.0 REPORTING Condor will prepare a written report detailing the findings of the fieldwork and the laboratory analytical results. The report will include coordinates of sampling locations in a table and on a sample location map. Laboratory analytical results will be summarized in tabular format and the certified laboratory analytical report will be attached. A draft of the report will be submitted to the Client for review and approval prior to submission to SJCEHD.