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McCormick and Baxter Memorandum Page 5 <br /> Disposal Profile Sampling <br /> Office 2: This sample was collected near the southwest corner of <br /> the command post approximately 1.5 feet east of the building corner <br /> and 1.5 feet below the roof. The sample appeared to have been <br /> untreated wood. <br /> Office 3: This sample was collected near the north entrance of the <br /> command post behind a filing cabinet. The sample location was on <br /> the east wall approximately 5 feet from the door and 2 feet above <br /> the floor. A wall stud sample was collected by breaking through <br /> the sheet rock. <br /> Office 4: This sample was collected near the west entrance of the <br /> command post behind a divider wall, to the north of the door, <br /> approximately 2 feet above the floor. A wall stud sample was <br /> collected by breaking through the chicken wire and plaster outer <br /> covering. <br /> DISCUSSION OF SAMPLE RESULTS <br /> It must be noted that none of the samples sent to the laboratory <br /> came from the eight loads of material sent to the Stockton City <br /> Landfill (SCL) . The majority of the samples collected did not <br /> represent the matrix of the material sent to the SCL, ie. concrete <br /> was sampled but not sent to the landfill. <br /> During the July 5, 1994 sampling event the sample team used a low <br /> level quality control sampling approach as they expected non-detect <br /> levels of PCPs in the sampled materials. Samples Debris A and <br /> Debris C consisted of pieces of wood of unknown origin picked off <br /> the ground. These could easily have been cross contaminated pieces <br /> from other areas of the site and do not truly represent materials <br /> earlier sent to the SCL. <br /> Sample Debris B was of concrete. No concrete was sent to the <br /> landfill. Samples Debris D and Debris E were of treated wood which <br /> is not representative of the material sent to SCL. Samples Debris <br /> D and Debris E were taken to determine PCP levels in treated wood. <br /> Materials sampled during this event were sent to a Class I landfill <br /> except for the concrete which was sent to a recycling facility. <br /> Samples gathered on July 14, 1994 were gathered by TAT and the OSC. <br /> Sample 714-CP was concrete and is not representative of debris sent <br /> to the SCL. Sample 714-RP was of treated wood and was collected to <br /> further characterize PCP levels in treated wood. This sample is <br /> not representative of material sent to SCL. Samples 714-FP and <br /> 714-MFP were collected by TAT and the OSC with more care given to <br />