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25 August 1995 <br /> AGE-NC Project No. 95-0136 <br /> Page 4 of 4 <br /> ' 5:0. CONCLUSIONS <br /> Low concentrations of petroleum hydrocarbons continue to be detected in samples from MW-1 and <br /> MW-4, which are down gradient of the former UST excavation. Based upon the results of the <br /> ground water samples, we recommend installation of an in-well aeration system in the immediate <br /> ' vicinity of wells MW-1 and MW-4. An air compressor or blower should be installed at the site to <br /> inject air into the ground water within wells MW-1 and MW4. An addtional blower should be <br /> connected to,the wells to'extract any hydrocarbon sparged from the ground water. <br /> 6.0. LIMITATIONS <br /> Our rofessional services were performed using that degree of care and skill ordinarily exercised-by <br /> P P g gr <br /> environmental consultants practicing in this or similar localities. The findings were mainly based upon <br /> ' analytical results provided by an independent laboratory. Evaluations of the geologic conditions at <br /> the site have been made from a limited number of available data points (i.e. monitoring wells); and <br /> subsurface conditions may vary away from these data points. No other warranty, expressed or <br /> implied, is made as to the professional recommendations contained in this report. <br /> I <br /> 1 r <br />