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30 August 2006 AGE-NC Project No. 06-1467 Page 3 of 4 grade(bsg). Soil samples will be collected in four selected borings at depths of 1, 3 and 5 feet bsg; soil samples will be collected in four borings at depths of 2 and 4 feet bsg; and a single soil sample will be collected at a depth of 5 feet in one boring(to be placed outside of any apparent fill dirt area and utilized for"background"analysis). Proposed probe boring locations area illustrated in Figure 2. Field procedures for advancement of probe boring and collection of soil samples are presented in Sections 5.1 and 5.2. The discrete soil samples will be submitted to a State of California Department of Health Services (DHS)-certified laboratory and composited 4:1 by depth (e.g. four 1-foot samples will be composited). Selected composite samples will be analyzed for the following constituents: • California Assessment Manual (CAM) 17 metals using various EPA Methods; • Organochlorine Pesticides using EPA Method 8081; • A petroleum carbon-chain analysis using EPA Method 8015; • Benzene,toluene,ethylbenzene,and total xylenes(BTEX)using EPA Method 8260 or 8020; • Reactivity, Corrosivity and Ignitability(RCI) using various EPA Methods; • Abbreviated 96-hour Screen Bioassay(toxicity); • Volatile organic compounds using EPA Method 8260; and • Semi-Volatile organic compounds using EPA Method 8270. Laboratory reports for soil analyses, testing methods, laboratory quality assurance/quality control (QA/QC) reports, and sample chain of custody documentation will be presented in a report with findings and recommendations. 4.3. REPORT PREPARATION Upon completion of field work and receipt of final laboratory analysis, a report will be prepared presenting the findings of the investigation. The report will include a description of the work performed and results of the sampling and analysis. 5.0. FIELD PROCEDURES All field procedures will be overseen by an AGE representative under the supervision of a California Professional Geologist. Procedures for the advancement of soil boring, soil sampling, equipment Advanced GeoEnvironmental,Inc.