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i y <br /> , Il <br /> i <br /> 26 March 1999° <br /> • AGE-NC Project No 98-0426 <br /> r <br /> Page 3 of 6 <br /> I i <br /> backfilled over their entire depthwith Portland cement,using a tremmie pipe ' <br /> 1 I u <br /> 33 LOGGING <br /> The remainder of the acetate sleeve was cut open for examination A sample of the soil was screened <br /> for the presence of'organic vapor using an organic vapor meter equipped with a photo-ionization <br /> detector (PID Thermo Environmerital 580A,,10 OeV, , calibrated to isobutylene), and the'readings <br /> were recorded on the bonng logs Soil was visually described in accordance with the,Umfied Soil <br /> Classification System (Bonng Logs, Appendix A) r <br /> 3 4 `LABORATORY ANALYSIS <br /> Samples collected following the piping removal and selected soil samples and the grab water <br /> samples collected from each probing were analyzed for + <br /> i <br /> • Total petroleum hydrocarbons quantified as gasoline (TPH-g) in accordance with EPA <br /> I Methods 5030/8015m <br /> 1 <br /> z • Volatile aromatics (benzene, toluene, ethylbenzene and xylenes BTEX) with methyl tdrt- <br />' butyl ether (MTBE) in accordance with EPA method 8020/602 <br />' Soil and water samples analyzed from probings B 1 through B3 were also analyzed for i <br /> 1 <br /> i 1 Y <br /> • Y Oxygenated compounds (di-isopropyl ether [DIPE], ethyl tert-butyl ether [ETBE], MTBE, <br />' tert-amyl methyl',ether'[,TAME], and tert-butanol [TBA]) in accordance with EPA Method <br /> 8260 modified <br /> � ' 1 <br /> 4.0. FINDINGS <br /> 5 <br /> 41 ' STRATIGRAPHY, 1 u <br /> Silt was the dominant soil,type encountered at the site Organic clay was encountered in the bottom t <br /> of the sample collected from a,depth of 10 feet bsg in probing B2 Sand was encountered in the n <br /> lower portion of the samples collected at a depth of 15 feet bsg in probmgs B 1 and B4, at a depth <br />' of 25 feet bsg in probings B2 through B6, at a depth of 30 feet bsg in probing B3 and at a depth of, <br /> i� 35 feet bsg in probing B5 Clay was encountered in the bottom portion of the sample collected from <br /> 1 <br /> 1 <br /> , 1 <br /> Advanced GeoEnvoronmentai,Inc <br /> 1 t <br /> r o <br />