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activities were conducted under the supervision of FR's California Professional Geologist (PG). Soil boring logs are provided in Appendix C. Soil samples were collected with a Geoprobe Large Bore Sampler that measures 2 feet by 1.5 inches and is capable of recovering discrete samples inside removable liners that measure up to 320 mL in volume. The liner is a thin-walled tube that fits inside the sample tube, facilitates retrieval of the sample, and may be used for storage when applicable. No headspace was present in the tube once the sample was collected. When a soil sample was collected, both ends of a given tube were immediately covered with Teflon tape, capped with polyethylene lids, and packed in an ice chest to maintain a minimum 4 degrees Centigrade temperature to minimize potential volatilization prior to delivery to the laboratory. The samples were labeled with the sample identification number and the sampling depth. Soil samples were collected from soil borings SB1 through SB3 and analyzed for one or more of the following analytical suites:volatile organic compounds (VOCs)via EPA Method 8260B; total petroleum hydrocarbons (TPH) (full-range organics) via EPA Method 8015B; and CAM 17 Metals via EPA Methods 6010B and 7471A Three (3) soil vapor probes were installed at soil borings SB1 through SB3 and soil vapor samples were collected for analysis of VOCs using EPA Method TO-15. Soil gas sampling was performed by hydraulically pushing soil gas probes to depths of approximately 5 feet bgs. The borings were capped to the surface with dedicated tubing to collect soil vapor at approximately 5 feet bgs. The sample locations were sealed to the surface (sans sample tubing) using grout and a collection shroud. Soil gas sample locations were evacuated of air using a pump, and shut-in test was conducted during purging and sampling to ensure sample extraction from the probe location. The probes were purged at a flow rate of two liters per minute, and a minimum three probe tubing volume was extracted prior to sampling. Vapor samples were collected into dedicated laboratory provided Summa canisters using dedicated Teflon and Masterflex tubing. All tubing was discarded between sampling locations. Sample flow rate was set from 0.5 to 1 liters per minute and measured using a flow meter. Three (3) borings were advanced to a depth of 25 bgs, and Groundwater was encountered at approximately 23 bgs. Borehole groundwater samples were collected via temporary monitoring wells using dedicated Teflon and Masterflex tubing and a check valve sample head. Groundwater samples collected in laboratory preserved sample containers for VOCs, and containers were confirmed to have no annular head-space. Following collection of samples, each borehole was backfilled with neat cement under the supervision of the San Joaquin County Environmental Health Department and restored to pre-drilling condition by applying patching materials. All soil and groundwater samples were kept in a cooler on ice following sample collection. Samples were transported directly to the laboratory for analysis following the completion of field activities. 4.0 Field Observations Soil boring logs are provided in Appendix C. Soil samples were screened in the field for volatile organic compounds using a photoionization detector (PID) instrument. Field indicators of potential chemical impact, including discoloration, degradation, or odor, or elevated PID readings were not identified in any of the soil samples collected from the borings. Phase II Limited Subsurface Investigation Fulcrum Resources Environmental 2546 Turnpike Road,Stockton, California 95206 202107-8656 8