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20 January 2015 • • <br /> AGE Project No. 15-3317 <br /> Page 2 of 4 <br /> 2.2. SOIL PROBE BORINGS AND SAMPLING <br /> A total of four shallow soil borings are proposed inside of the site's building structure. <br /> Soil borings will be advanced in near the south, southeast, and southwest areas of the <br /> building (Figure 2). <br /> Soil vapor samples will be collected from each boring at approximately one foot (sub <br /> slab) bsg and at a depth of four feet bsg. <br /> 2.3. LABORATORY ANALYSIS <br /> Soil vapor samples will be analyzed by a California Department of Public Health <br /> (CDPH)-certified laboratory for the following constituents: <br /> Volatile organic compounds in accordance with EPA Method 8260. <br /> Laboratory reports for soil sample and groundwater analyses, testing methods, <br /> laboratory quality assurance/quality control (QA/QC) reports, and sample chain-of- <br /> custody documentation will be presented in a report with the findings and <br /> recommendations. <br /> 2.4. REPORT PREPARATION <br /> Upon completion of initial field work and receipt of final laboratory analysis, a report will <br /> be prepared presenting findings of the investigation. The report of findings will include <br /> descriptions of work performed and results of sampling and analysis. Also, conclusions <br /> and applicable recommendations will be included in the reports. Reports will be in a <br /> format acceptable to the EHD, and will be reviewed and signed by a California <br /> Professional Geologist. <br /> 3.0. FIELD PROCEDURES <br /> All field procedures will be overseen by an AGE representative working under the <br /> supervision of a California Professional Geologist. Procedures for advancing the soil <br /> boring, collection and analysis of soil vapor samples, equipment decontamination and <br /> sample handling are presented below. <br /> 3.1. SOIL BORING ADVANCEMENT <br /> A total of four (4) soil borings will be advanced using a truck-mounted probe or van- <br /> mounted Geoprobe® 5400 equipped with 1.25-inch probing rods. The probe rig will <br /> Advanced CeoEnvironmental,Inc. <br />