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16 October 1997 <br /> AGE=NC.Project No. 96-0232 <br /> y Page 4.of 5 <br /> 3.3. ANALYTICAL RESULTS,-OF- SOIL SAMPLES'.,, <br /> A total,of.sixteen-soil,samples:from P-1 through P-5. were submitted_to a MAI for analysis_of <br /> oxygenated.petrofeum-hydrocarbon compounds,(MTBE, ETBE, TBA, PIPE and TANiE)..MTBE , <br /> `,was detected in a'soil sample collected from-P-1,at 35 feet (P1-35)ata concentration of 140 parts <br /> per billion(ppb, reported as micrograms per kilogram). The laboratory analysis'of the other selected " <br />' soil samples did'nat detect any,MTBE, ETBE, DIPE;TBA'or TAME. <br /> -Analytical-.results,of soil samples are summarized•in Table 1 -Analytical Re'sirlts of Soil Samples <br /> Figures 3 depicts'the analysis of oxygenated'petroleum-hydrocarbon compounds beneath the site in <br />' Identification No: 79918 to +79929 80500 to <br /> cross sectional.view. The•laboratory,reports (MAi , <br /> 80513, 80560 to 80564 and..81095 to 81'101)and chain-of-custody are•include'd'iIi Appendix B x <br /> 3:4. ANALYTICAL RESULTS OF GROUND WATER SAMPLES <br /> A-total elevdn ground water samples from-P-1 through P-5 were submitted to MAI.for analysis <br /> of MTBE; ETBE,-TBA,.DIPE and TAME. MTBE was,detected from PLI at intervals between 23 <br /> to 27 feet bsg{P1-23-to 27) and 46 to 54 feet bsg(P1-46 to.50) and from P-5 at an interval between. <br /> 21 to 25feet-bsg`(P5-21 to'25) at concentrations of 4.10,ppb, 72 }'pb.and 160 ppb (reported•as'- <br /> micrograms per liter), respectively: TBA was detected'froin P1-23 to 27; P1=46 to 50 and P5-21 to <br /> 25 at concentrations of 25 h'J Ippb and 6.6,ppb, respectively., <br /> r Analytical results of ground water samples are are in,Table.2 -Analytical Results of Ground. <br /> 1 -Water Samples_ The laboratory' 'eporrt (MAI Identification No..79932 to,7.9935, 80495 t6-80498' x <br /> -. 80567 to 80568 and 81104�to-811.05),and chain-of-c_ustody are-included in Appendix B' <br /> 4A,- -SUMMARY AND,CONCLUSIONS ^,~ <br /> Based an the results of soil•boring activities in'August and,September .1997, AGE.concludes:; <br /> „L'abor'atory data-indicates' -that:oxygenated ;petroleum-hydrocarbon` compounds were <br /> encountered froth P-1 between 2' and 50,fe' bsg and from P-S between 21 to,25 feet bsg. <br /> Field ob'nervations P113•readins jabotatory,data and historical.ground .'wafer sampling. <br /> erforined at the.Site <br /> Appendix C dix suggests that the MTBE'ground water plume has taken., <br /> P ( ) <br /> a' relative_ly° narrow, elongated oval shape '(Figure 5-.Approximate Extent•of Dissolved ; <br />,. MTBE): Laterally' the dissolved MTBE'plume.,appears to have migr'ated off-site in a <br /> southwest-direction'and extend••towards a domestic water W'r l located approximately 100 feet ; <br /> F Advan"d GeoEnvironmental,Inc. <br />