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Oct-08-01 04: 14P • • P. 12 • Soil samples will be field-screened foretroleum h observations(odor,color,staining, p hydrocarbons using a P1D an etc.). d held Geoprobe Borings-Sequence 2 • Soil samples for laboratory analysis will be obtained using the Geoprobe system. • Grab groundwater samples for laboratory analysis will be obtained btamed by installing a temporary well point into the water table,collecting the sample using a disposable bailer,and transferring the sample into appropriate water sample containers. CPT Borings-Sequence 2 ` • Soil samples will be obtained for laboratory analysis either using the Simulprobe TM sampler or by using a slide hammer and sample barrel. The decision about whether to collect the soil samples using the Simulprobe TM methodology or slide-hammer methodology will be made based on site-specific conditions encountered during Sequence 1 work. • Grab groundwater samples will be obtained for laboratory analysis either using the Simulprobe TM sampler or by installing a temporary well point,collecting the sample with a disposable bailer or peristaltic pump,and then transferring the sample into appropriate water sample containers. The decision about whether to collect the grab groundwater samples using the Simulprobe TM methodology or a temporary well point methodology will be made based on site-specific conditions encountered during Sequence 1 work. 3.4 Laboratory Analysis The soil and graboundwater samples ples will be submitted to a California State Certified analytical laboratory and analyzed for the same parameters as specified in the April 13, 2001,Work Plan,which are summarized in Table 2. 4.0 Reporting The SAC results will be reported in a manner consistent with discussions held with the RWQCB at the August 15,2001,meeting. The results will be presented to the RWQCB at the next quarterly meeting with KMEP,which is scheduled for November 15,2001. Consistent with the April 13,2001,Work Plan,the presentation will include a description of the field investigations and an assessment of the extent of affected soil and groundwater in the source area. In addition,recommendations for additional work,if any,will be provided. This additional work could include investigations in the area identified in the April 13,2001, Work Plan as the Phase 2 Characterization area, the area east of the site boundary at the neighboring private residence on Cook Road,and in the source area where deeper investigations would require protective investigation methods to be used to avoid vertical cross-contamination to deeper zones. The results of the SAC,along with any additional work that may be performed after ' discussions with the RWQCB,will be incorporated into an investigation report that will SCQ'LAW3M-WO0124MI e