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29 December 2003 <br /> AGE-NC Project No 95-0103 <br /> Page 2 of 5 <br /> Collected samples preserved for laboratory analysis were placed In achilled container,under Ice,and <br /> delivered under chain-of-custody to Cal Tech Environmental Laboratories,Inc (CTEL)of Paramount <br /> California, a California Department of Health Services (DHS)-certified laboratories, for analysis <br /> 22 SOIL LOGGING <br /> After sample preservation, soil was extruded from the remaining sleeves and screened utilizing an <br /> organic vapor meter equipped with a photo-Ionization detector(PID Thermo Environmental 580b, <br /> 10 0 eV, calibrated to isobutylene), the readings were recorded on the Boring Logs The soil was <br /> described in accordance with the Unified Soil Classification System A soil profile is depicted In <br /> Appendix B <br /> 23 LABORATORY ANALYSIS OF SOIL SAMPLES <br /> A total of forty-two soil samples were analyzed for <br /> • Total petroleum hydrocarbons quantified as gasoline (TPH-g) by EPA Method 8015 <br /> Modified, <br /> • Benzene,toluene,ethyl benzene and xylene(BTEX)and methyl-tertiary butyl ether(MTBE) <br /> by EPA Methods 8021, and <br /> • Selected samples were analyzed for Methyl-tertiarybutyl ether(MTBE),tertiarybutyl alcohol <br /> (TBA),di-isopropyl ether(DIPE), ethyl tertiary butyl ether(ETBE)and tertiary amyl methyl <br /> ether (TAME) in accordance with EPA Method 8260 Modified <br /> All probe borings were permanently sealed to prevent vertical migration of contaminants Soil borings <br /> were abandoned by backfilling with cement slurry from the total depth to surface grade <br /> 2 4 EQUIPMENT DECONTAMINATION <br /> All probing rods used were cleaned prior to advancement in each probe boring location The sampling <br /> equipment was washed in an Alconox solution and rinsed with water prior to each sampling run to <br /> avoid cross-contamination <br /> Advanced Geo Environmental,Inc <br />