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(YVATC <br /> Following soil and groundwater sample collection, the borings will be backfilled with neat <br /> cement grout to the ground surface. All drill cuttings, if any, will be stored on-site in a 5- <br /> gallon container pending laboratory results. <br /> Sample Analysis <br /> The soil and groundwater samples from the borings will be immediately placed in a cooler with <br /> ice and delivered under chain-of-custody documentation to a State-certified analytical <br /> laboratory. Soil and groundwater samples will be analyzed TPHg, TPHd and BTEX by EPA <br /> Methods 8015/8020; and MTBE, 1,2-dibromoethane (EDB), 1,2-dichloroethane (1,2-DCA), <br /> and additional oxygenate fuel additives including tertiary amyl ether (TAME), di-isopropyl <br /> ether (DIPE), ethyl tertiary butyl ether (ETBE), and tertiary butyl alcohol (TBA) by EPA <br /> Method 8260. <br /> Report Preparation <br /> A summary report will be prepared for submittal to PHS/EHD. The report will include a <br /> description of all field activities, laboratory analytical results, and well/boring logs. All work <br /> described in this workplan will be performed under the direction of a California Registered <br /> Professional Engineer. All work will be performed in accordance with ATC's Site Safety Plan <br /> (SSP) and Quality Control/Quality Assurance Plan on file with PHS/EHD. <br /> Projected Schedule <br /> Once approval of this workplan has been received, ATC will confirm a schedule for drilling <br /> activities. ATC will notify PHS/EHD at least 48 hours prior to beginning any field activities. <br /> The summary report will be submitted to PHS/EHD approximately three to four weeks after <br /> the completion of field activities. <br /> 92054.0006\REPORTS\WORKPLAN.DOC 5 <br />