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IL <br /> L12 June 1998 <br /> AGE-NC,Project,No.9$-0308 <br /> Page 5 of 7In <br /> - <br /> Groundwater was encountered in each boring at a depth of approximately 12 feet bsg.Boring logs <br /> are included in Appendix A. <br /> l4:2 FIELDEVIDENCE OF HYDROCARBON-IMPACTED SOIL AND GROUND WATER <br /> L Slight to moderate petroleum hydrocarbon odor was noted in'duplicate soil samples collected from <br /> P 1 between 12 and'20'feet bsg, <br /> L No`0ftv1eum;liyli ► —;sample collectedffrom probing <br /> P1, <br /> LOrganic vapor'was detected in soil sample duplicates from P at depths between 10 and 15 feet bsg <br /> using a PID at concentrations as,-high as 3,$parts per million(ppm). <br /> L <br /> 4.3 ANALYTICAL RESULTS OF SOIL SAMPLES <br /> LA-totalof four soil;saMples{ a fiom P1, were submitted foF laboratory analysis sis of <br /> TPH-g,BTEX and MTBEuas detected in'a soil salnple collected from P1 at a depth of 12 <br /> L feet bsg with a concentration o Moll fpm; reported as milligrams per kilogram). <br /> BTE&X compounds weredetected ria soil sample collected from P, of a depth of 15 feet bsg at <br /> concentrations ranging up t was dtd of the analysed <br /> L samples.'Analytical results of"soil samples are summar6d.in Table 1. The laboratbry'report(Castle <br /> Analytical Laboratory Lab,No. 14$5)and chain-of-custody form are included in Appendix B. <br /> L OIC . ' -13 ver I +ci *bf MTBE,DIPE,TAME,ETBE and <br /> Sol <br /> TBA. The results of,the analysis.did not detect MTBE, DtPE,;TAME, ETBE or TBA above <br /> laboratory reporting, limits. Analytical results of soil samples are 'summarized in Table 1 The: <br /> laboratory report(American Envirvnlnental Network'Client Project I.D.No. 10666)and chain-of- <br /> _custody are included in Appendix C. <br /> 4.4. ANALYTICAL RESULTS OF GROUND WATER-SAMPLES <br /> Llam' was detected at <br /> . �.g <br /> a concentration c 1, ;.reported as.microgamy per liter,or,ugn)and two <br /> L BTE&X eompoun&l were.detected at concentrations ranging as-high as'50 ppb: Wow <br /> T- W1 IFE,Tom:E l AI were Iaot ' <br /> Analytical results of the grab:ground water sample are summarizedin Table 2.yI ie laboratory reports <br /> Advanced GeoEovimnmenul,Inc. <br />