Laserfiche WebLink
` OES-Idkew ld Market <br /> September 26,1994 <br /> Page-3- <br /> of I 1 feet below the ground surface Light- to medium brown sand, with minor amounts of silt was <br /> present from a depth of approximately 11 feet to approximately 21 feet below the ground surface <br /> The soil samples were generally moist and field scieenmg measurements indicated no evidence of <br /> petroleum hydrocarbons The approximate locations of soil samples are shown the Figure 3, Append". <br /> A, and in the site geologic cross-section presented in Figure 4, Appendix A The geologic logs are <br /> presented in Figures 5 and 6, Appendix A <br /> I <br /> The soil cuttings from each boring were added to the existing stockpile on site SB I and SB2 l <br /> were tremae-grouted with a cement slurry containing 5 per cent by weight bentonite After the grout <br /> settled, each borehole was topped off with additional grout The soil samples were hard delivered { <br /> within 12-hours of collection following chain-of-custody procedures to GeoAnalytical Laboratories in <br /> Modesto, California, for analyses <br /> 5.0 LABORATORY ANALYSES <br /> The soil samples collected from SB 1 and SB2 at vertical depths of approximately 15 and 20 <br /> feet below the ground surface were retained for laboratory analyses The soil samples were analyzed <br /> for benzene, toluene, ethyl benzene, and total xylene (BTEX) by EPA Method 8020, for LOW <br /> petroleum hydrocarbons, quantified as gasoline (TPH-G) by Method 5030/LUFT, and for Ethyl <br /> Dibromide (EDB) by method LUFT The results of the laboratory analyses are presented in Table I <br /> Laboratory report sheets indicating analytical methods used, detection hilts, and results of analyses <br /> are presented in Appendix B <br /> TABLE 1 <br /> Idlewild Market - Soil Investigation <br /> Soil Sample Laboratory Results <br /> I B T E X TPH-G EDB <br /> Detection 50 50 50 50 25 50 <br /> f Sample I D Limits µgAg pg/kg 4&g PgAg mg/kg tnbIg <br /> 1458-SBI-15 ND ND ND ND ND ND <br /> 145R-SBI-20 ND ND ND ND ND ND <br /> 145R-SB2-15 ND ND ND ND ND ND <br /> 145R-SB2-20 ND ND ND ND ND ND <br /> I Unit Conversions <br /> pg/kg parts per billion(ppb) B T EX=benzene toluere ethyl benzene and xylene <br />• mglkg parts per million(ppm) TPH-G=total petroleum hydrocarbons quantified as gasoline <br /> EDB=ethyl dibromide <br /> ND=none detected at or above laboratory detection limits <br /> LSI CONDOR <br />