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03 November 2003 <br /> AGE-NC Project No. 03-1055 <br /> Page 6 of 6 <br /> material. The exposed ends of the sample sleeve will be covered with Teflon sheets, capped and <br /> sealed with tape. <br /> Soil samples will be collected from soil stockpiles by digging approximately one foot into the soil <br /> stockpile. Soil samples will be collected by hand sampling methods using a stainless steel or carbon <br /> steel trowel, by pressing a metric soil sampling hammer and one 6-inch long by 2-inch diameter <br /> brass sleeve into the soil stockpile. <br /> Following sample collection, each sample sleeve will be labeled with the boring location, depth, <br /> time,date and sampler's initials.Appropriately sealed and labeled samples will be placed in a chilled <br /> container under ice and transported under chain-of-custody procedure to a DHS-certified laboratory. <br /> 4.3. EXCAVATION BACKFILLING PROCEDURES <br /> The excavation will be backfilled with clean fill sand and/or pea gravel mixtures. The excavation <br /> will be backfilled and compacted in five-foot lifts. <br /> 4.4. EQUIPMENT DECONTAMINATION <br /> All sampling tools used for sample collection will be thoroughly washed with a solution of Alconox <br /> and rinsed with clean water prior to each sampling location. <br /> 4.5. REPORT PREPARATION <br /> Upon completion of field work and receipt of final laboratory analysis, a report will be prepared <br /> presenting the findings of the investigation. The report will include a description of the work <br /> performed and the results of the sampling and analysis; the laboratory reports for ground water <br /> analyses,testing methods,laboratory quality assurance/quality control(QA/QC)reports,and sample <br /> chain of custody documentation will be included in an appendix. hi addition, conclusions and <br /> applicable recommendations will be included in the report.The report will be in a format acceptable <br /> to the EHD and the Central Valley Regional Water Quality Control Board(CVRWQCB), and will <br /> be reviewed and signed by a California Registered Geologist. <br /> Advanced CeoEnvironmental,Inc. <br />