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20 July 1995 <br /> AGE-NC-95-0113 <br />' Page 4 of 5 f <br />' 4 2 ANALYTICAL RESULTS OF SOIL SAMPLES <br /> A total of 10 soil samples were submitted to the laboratory for analysis TPH-g and BTE&X were <br />' detected m two of the ten samples(B1-10 and B2-15) at concentrations ranging from 0 007 mg/kg <br /> (ppm) to 260 ppm <br />' Lead(TTLC)was detected in four of the ten samples at concentrations ranging from 5 3 ppm (B2- <br /> 15)to 230 ppm(B 1-10) Because the TTLC concentration of lead exceeded background levels (12 <br />' ppm)m B1-10, the sample was also analyzed for STLC lead STLC lead was detected m B1-10 at <br /> 2 7 mg/l(ppm) Analytical results are summarized on Table 1 The laboratory report and chain-of- <br /> custody are included in Appendix C <br /> 4 3 ANALYTICAL RESULTS OF GROUND WATER SAMPLES <br /> No TPH-g or BTE&X were detected in the ground water sample collected from MW-1 on 25 May <br /> 1995 The laboratory report and chain-of-custody are included in Appendix D <br /> 5.0. CONCLUSIONS AND RECOMMENDATIONS <br /> 5 1 HYDROCARBON IMPACTED SOIL <br /> EBased upon the analytical results of soil samples collected during this investigation, hydrocarbon- <br /> impacted soil at the site appears to be limited to the immediate area of boring B 1, beneath the <br /> building Only very low concentrations of hydrocarbons were detected in boring B2 at a depth of 15 <br /> rfeet, indicating that impacted soil in neither laterally or horizontally extensive However, we <br /> recommend the installation of one additional slant soil boring north of B 1, under the building to assess <br /> the northern extent of impacted soil at the site Upon completion of the assessment, remedial <br /> alternatives for the impacted soil can be considered <br /> 5 2 HYDROCARBON IMPACTED GROUND WATER <br /> Since no petroleum hydrocarbons were detected in the sample from MW-1, it does not appear that <br /> ground water has been impacted at the site However,we recommend collection of a confirmation <br /> water sample from MW-1, in the following quarter <br /> I <br />