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Mr Michael J. Infurna Jr. P.G., S.R.E.H.S. August 2, 2006 Page 3 field work. Because of health and safety considerations, SECOR coordinated with PG&E and arrangements were made to have PG&E staff present on site during the investigation. Prior to the commencement of field activities, SECOR submitted to SJCEHD the required work plan, HASP, permit applications and forms, boring permit fees, and a proposed schedule. SJCEHD approved the work plan and issued boring permit SR # 0046695. A copy of the soil boring permit is included in Attachment 1. Also prior to field activities, the Site was marked for utility clearance, and SECOR contacted Underground Service Alert (USA) to mark various agency sub-surface utilities (Reference Number 169722). On May 19, 2 5 SECOR field staff mobilized to the Site to complete the scope of work. Field staff han augered the five proposed soil borings (HA-1 to HA-5) at the locations shown on Figures 2 and 3. Based on field observations including odor, soil discoloration, and photo-ionization detector (PID) readings, two additional borings (HA-6 and HA-7) were also advanced at the request of PG&E staff onsite. Borings HA-1 through HA-5 were hand augered to depths of approximately 3.3 to 3.75 feet below ground surface (bgs). The proposed depth of 5 feet bgs was not achieved in any of the borings due to refusal on what appeared to be a hard pan approximately 3.3 to 3.75 feet bgs. Two additional borings (HA-6 and HA-7) were advanced to depths of 1.0 feet bgs and 2.5 feet bgs at the request of PG&E staff onsite. SECOR field staff unsuccessfully attempted to advance a hole through the hard pan using a large pry bar to enable sample collection of the soil below. Discrete in-place soil samples were collected from the borings with a clean impact sampler. The work plan proposed samples to be collected at depths of 2 feet bgs and 5 feet bgs unless the hardpan encountered in the previous investigation was again encountered. Under these circumstances, samples were to be collected at depths of 1.5 feet bgs and just above the hard par,. Because the hard pan was encountered, the samples submitted for analyses from boring HA-1 through HA-5 were collected from depths of 1.5 feet bgs and 3.0 or 3.5 feet bgs (Table 1). The samples from borings HA-6 and HA-7 were collected at depths of 0.5 feet bgs and 2.0 feet bgs, respectively (see Table 1). The soil samples were collected with a decontaminated impact sampler in new brass sample sleeves and were field-screened for volatile organic compounds using a calibrated PID. The samples sleeves were immediately covered with Teflon sheets and plastic end caps, labeled, recorded on a chain-of-custody form, and placed into a cooler with ice for transport to Calscience Environmental Laboratories Inc. in Garden Grove, California, a state-certified analytical laboratory. The soil samples were submitted under chain-of-custody protocol for analyses in accordance with the following analytical program: 1:1PG&E\2nd Pz liveport\Final PGE French Camp 2nd Phase 11.doc