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21 July 2015 <br /> AGE Project No. 14-3154 <br /> Page 14 of 15 <br /> Additional soil from the established trenches will be excavated to expose soil for another <br /> sampling event. Each soil sample will be collected with a metric soil sampling slide- <br /> hammer, loaded with a pre-cleaned steel sleeve. Appropriately sealed and labeled <br /> samples will be placed in a chilled container under ice and transported under chain-of- <br /> custody procedure to a CDPH-certified laboratory. Each sample sleeve will be labeled <br /> with trench designation, depth, time, date and sampler's initials. Soils encountered in <br /> the trenches will be visually classified by AGE personnel in accordance with the USCS. <br /> Additionally, soil samples will be field-screened for presence of volatile organic <br /> compounds using an OVM. <br /> Selected soil samples collected from the trenches will be analyzed for the suite of <br /> chemicals listed in the above LABORATORY ANALYSIS section. <br /> AGE anticipates 20 samples to be analyzed for the production chemicals of concern; <br /> however each will be selected to evaluate selected chemicals based on location and <br /> distribution. Laboratory reports for analyses, testing methods, laboratory quality <br /> assurance/quality control (QA/QC) reports, and sample chain-of-custody documentation <br /> will be presented in a report with the findings and recommendations. <br /> EQUIPMENT DECONTAMINATION/WASTE MANAGEMENT <br /> All sampling tools used for sample collection will be thoroughly rinsed with clean water <br /> after being washed with a solution of Alconox. All down-hole drilling equipment will be <br /> pressure washed prior to starting each boring. All rinseate generated during drilling will <br /> be containerized in a properly drum, and stored on-site in an area lacking public access. <br /> Disposal alternatives will be evaluated based on results of soil and water analysis. <br /> Waste media will be disposed if required or will be mitigated on the surface areas. <br /> REPORTING <br /> The results of the investigation will be submitted in a report. The report will include a <br /> description of work performed and the results of soil and groundwater sampling. <br /> Conclusions and recommendations will also be included in the reports, if applicable. <br /> Reports will be in a format acceptable to CRWQCB guidelines, and will be reviewed and <br /> signed by a California Professional Geologist. <br /> Advanced GeoEnvironmentnl,Inc. <br />