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12 February 1996 <br /> AGE-NC Project No. 95-0112 <br /> Page 3 of 3 <br /> Figure 2. <br /> 3. Decontaminate sampling equipment in an Alconox solution and rinse with water prior to each <br /> sampling run. <br /> 4. Collect soil samples at 5-foot intervals. Samples will be collected using a split spoon sampler <br /> loaded with three pre-cleaned 2 by 6-inch brass sleeves. <br /> 5. Preserve soil in the lead sleeve by covering both ends with Teflon sheets, capping and sealing <br /> with tape. <br /> 6. Label and log samples on a chain-of-custody form. <br /> 7. Store samples in a chilled container and transport to a State-certified laboratory for analysis. <br /> Selected soil samples will be analyzed for total petroleum hydrocarbons quantified as gasoline <br /> (TPH-g) and volatile aromatics (benzene, toluene, ethylbenzene and xylenes: BTE&X) in <br /> accordance with EPA methods 8015m and 8020, respectively. <br /> S. Monitor auger returns and soil sample duplicates for the presence of volatile organics using <br /> a photo-ionization detector (PID) pre-calibrated to isobutylene. <br /> 9. Log auger returns and soil sample duplicates in accordance with the Unified Soil <br /> Classification System. <br /> 10. Place auger returns in 55-gallon DOT drums and store on-site pending analytical results of <br /> soil samples. <br /> 11. Backfill boring to surface grade using Portland Cement. <br /> 4.2. REPORT PREPARATION <br /> Details of the drilling and sampling procedures and results of laboratory analysis will be included in <br /> a Quarterly Report. The report will be in a format acceptable to the PHS-EHD and Clv'RXVQCB. The <br /> report will be reviewed and signed by a California Registered Geologist. <br />