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10 January 1996 <br /> AGE-NC Project No 95-0105 - - <br /> Page 4 of 4 <br /> 4 2 LABORATORY REPORT OF GROUND WATER MONITORING <br /> N TPH-d or BTE&X were detected during the October 1995 sampling However, <br /> No TPH-g, g <br /> tetrachloroethylene was detected in MW-2 and MW-3 at concentrations of 2 ggA (parts per billion <br /> ppb) and 19 ppb, respectively, and trichloroethylene was detected in MW-3 at 0 61 ppm Analytical <br /> results of ground water samples are summarized on Table 2 The laboratory report and chain-of- <br /> custody are presented in Appendix B <br /> ' 5.0. CONCLUSIONS AND RECOMMENDATIONS <br /> No petroleum hydrocarbons were detected during the October sampling However, none of the <br /> ' monitoring wells present at the site are down-gradient of the former UST locations In a meeting held <br /> on 4 December 1995, the PHS-EHD stated that a down-gradient monitoring well will have to be <br /> installed off-site Furthermore, additional assessment of remaining hydrocarbon-impacted soil north <br /> ' and west of the site will be required <br /> A Work PIan Addendum for the advancement of several soil probings and installation of at least one <br /> M down-gradient monitoring well at the site has been submitted to the PHS-EHD Upon approval of <br /> the Work Plan Addendum, AGE will schedule work at the site The next quarterly ground water <br /> momtonng should also be scheduled for January 1996 <br /> ' 6.0. LIMITATIONS <br /> Our professional services were performed using that degree of care and skill ordinarily exercised by <br /> environmental consultants practicing in this or similar localities The findings were based upon <br /> analytical results provided by an independent laboratory Evaluations of the geologiclhydrogeologic <br /> conditions at the site for the purpose of this investigation are made from a limited number of available <br /> ' data points(i a monitoring wells, soil samples) and subsurface conditions may vary away from these <br /> data points No other warranty, expressed or implied, is made as to the professional recommendations <br /> contained in this report <br /> 1 <br /> 1 <br />