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Mr Michael J. Infurna Jr. P.G., S.R.E.H.S. August 2, 2006 Page 4 • Total petroleum hydrocarbons as gasoline (TPHg); benzene, toluene, ethylbenzene, and total xylenes (BTEX), and methyl tertiary butyl ether (MTBE) with sample preparation by EPA Method 5030B and DHS LUFT analytical method, and • Total petroleum hydrocarbons as diesel (TPHd) and total petroleum hydrocarbons as motor oil (TPHmo) with sample preparation by EPA Method 3550B and DHS LUFT analytical method. Thirteen soil samples were analyzed with the above methods. Two samples were submitted from each of borings HA-1 through HA-5. One sample was submitted from each of the shallow borings HA-6 and HA-7. One sample duplicate was analyzed for quality analysis/quality control purposes; the analytical laboratory performed a laboratory split of sample HA-1-S-1.5'. Analytical results and PID readings for soil samples collected during this investigation are included in Table 1. Copies of the laboratory analytical reports and chain-of-custody forms are provided in Attachment 2. The field investigation was conducted in accordance with the soil boring permit requirements and SECOR's approved work plan. Auger cuttings and limited decon-fluids were containerized in a Department of Transportation (DOT)-rated drum and retained onsite pending the results of soil analyses. Sampling Onsite Well Based on field observations during the investigation and preliminary soil sample analytical results, PG&E requested that SECOR collect a water sample from the well immediately south of the heavy equipment storage shed (Figure 2). PG&E contacted California Department of Water Resources (DWR) to acquire well construction details for the onsite well, which were not available. 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 well sampling. On June 30, 2006, SECOR mobilized to the Site to purge and sample the onsite well. A pressure tank and a spigot are located adjacent to the well head. Based on the dimensions of the pressure tank the capacity of the tank was estimated to be approximately 90 gallons. Prior to purging the well, the spigot was cleaned with a brush, Liquinox or equivalent, and deionized water. The well and pressure tank were purged of standing water by running water from the spigot and recording the temperature, pH, and conductivity periodically during the purging process. The purge parameters were recorded on groundwater sampling field data sheets. Approximately 280 gallons were purged and the purge parameters stabilized prior to sampling. A copy of the groundwater sampling field data sheet is included as Attachment I:\PG&E\2nd Pz II\report\Final PGE French Camp 2nd Phase II.doc