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ameO <br /> Grab groundwater samples will be analyzed for TPH quantified as diesel (TPHd; carbon range <br /> CIO to C25) using U.S. EPA Method 8015M; BTEX using U.S. EPA Method 8260; and PAHs <br /> using U.S. EPA Method 8270C SIM. <br /> 4.3 QUALITY ASSURANCE/QUALITY CONTROL PROCEDURES <br /> Blind field duplicate groundwater samples will be collected at one of the sampling locations. <br /> The duplicate samples will be stored in the manner of the primary samples and will be <br /> submitted to the analytical laboratory for the same analysis as the primary samples. Because <br /> of the heterogeneous nature of soil samples, a soil field duplicate will not be collected. <br /> An equipment blank will be collected from non-disposable groundwater sampling equipment <br /> (i.e., the stainless steel bailer) if used for groundwater sample collection. The equipment blank <br /> will be collected by pouring laboratory-supplied deionized water through the decontaminated <br /> stainless steel bailer. The equipment blank samples will be stored in the manner of the primary <br /> samples and will be submitted to the analytical laboratory for the same analysis as the primary <br /> samples. <br /> A trip blank (deionized water) will be prepared by the laboratory to accompany the shipment of <br /> sample containers. The trip blank will be stored in the manner of the primary samples and <br /> submitted to the analytical laboratory for VOC analysis. <br /> 4.4 BOREHOLE DESTRUCTION AND SURVEYING <br /> Following completion of sampling activities, soil and groundwater borings will be grouted to <br /> ground surface using a tremie pipe in accordance with San Joaquin County boring permit <br /> requirements. The ground surface at all sampling locations will be repaired to match <br /> surrounding conditions (asphalt or concrete patch) and in accordance with permit <br /> requirements. AMEC will obtain horizontal location information for all boring locations using a <br /> global positioning system (GPS) device. <br /> 5.0 REPORTING <br /> After analytical results have been received, AMEC will prepare a report documenting field <br /> activities and analytical results. The report will include a description of field and analytical <br /> methods, tables and figures presenting analytical results, and a discussion of the results. <br /> 6.0 SCHEDULE <br /> Field work can commence within 4 weeks of obtaining approval of this Work Plan, contingent <br /> upon receipt of necessary permits. Field activities are expected to be conducted over a 1-to <br /> 2-day period (depending on the number of contingency locations that will be necessary) and <br /> AMEC Geomatrix, Inc. <br /> X:\16000s\161130\4000\OffSiteEastWP 061511\1 txt,cvrs,Itrs\text.docx 6 <br />