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When the total depth of the probe was reached (16 feet bgs), a 1-inch diameter slotted PVC pipe was inserted into the open hole following the collection of the soil sample. Groundwater was encountered at a depth of 14 feet bgs. A grab groundwater sample was collected from the PVC pipe using a peristaltic pump. The groundwater was decanted into laboratory-supplied sample containers appropriate to the individual analyses. The sample containers were labeled, packaged and handled as described above. Following collection of the groundwater sample, the PVC pipe was withdrawn from the borehole and the hole backfilled with a cement-bentonite grout to ground surface. Decontamination water generated during the field activities was stored in a sealed 55-gallon Department of Transportation drum and left on- site. RESULTS The results of the field investigation and chemical testing are presented in the following sections. The chemical results are discussed separately for the soil and groundwater and drinking water samples. Laboratory analytical results are summarized in Table 1 and the laboratory report is included in Appendix A. Field Observations Subsurface conditions encountered during the investigation consisted primarily of fine-grained sands and clays with some intermittent gravel lenses to the maximum depth explored of 16 feet bgs. A distinct groundwater table was encountered at 14 feet bgs, although the soil was generally moist below 10 feet. The boring log is included as Appendix B to this report. No odor was detected during the field investigation. Chemical Test Results One soil sample from the boring, DM-1, was submitted to the laboratory for chemical analysis. The concentrations of TPH-g, TPH-d, BTEX, MTBE, Halogenated Volatile Organics and Semivolatile Organic Compounds were below laboratory detection limits. Where established, California Department of Health Services (DHS) regulatory criteria for hazardous waste were used as a framework for the discussion for the chemical test results for metals. According to DHS Regulations (California Code of Regulations, Title 22, Division 4, Chapter 30, Article 11), a solid waste is considered hazardous if the total concentration in the solid waste of a listed compound exceeds the Total Threshold Limit Concentration(TTLC). If the total concentration in the solid waste is greater than a value of ten times the Soluble Threshold Limit Concentration (STLC), the solid material is not necessarily considered hazardous, but would be evaluated further using the Waste Extraction Test (WET). If the total concentration is less than or equal to ten times the STLC, the material can be considered non-hazardous without further testing. The total concentrations of the metal constituents in DM-1 were below the TTLC and ten times the STLC. Groundwater samples from DM-1 were analyzed for TPH-g, TPH-d, BTEX, and MTBE and with the exception of toluene, the concentration of the analytes was below laboratory detection limits. The concentration of toluene was reported as 0.53 ppb, which is well below the California Drinking Water Standard for toluene of 150 ppb. The concentration of the CAM-17 metals reported by the laboratory DAMES&MOORE 3