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01 March 1999 <br /> AGE-NC Project No. 95-0103 <br /> Page 8 of 8 <br /> 5.0. RECOMMENDATIONS <br /> Based upon data collected over the quarter at the site, AGE recommends: <br /> • Continual operation of the SVE/lAS system to aide in addressing the portions of the site with <br /> residual hydrocarbon-impacted soil and/or hydrocarbon-impacted ground water. <br /> • Continued monthly and quarterly ground water monitoring. The next ground water <br /> monitoring event is scheduled for March. During this quarter soil samples should be <br /> collected in accordance with the work pian addendum, dated 11 February 1998. <br /> • Abandon well MW-7 located east of the site, if the PHS-EHD agrees. The adjacent property <br /> is being sold and is in escrow. <br /> • During the next quarterly sampling event,collect water samples from vapor wells VE-3, VE- <br /> 5 and VE-6 and vapor well VW-2, if possible. <br /> • Based on the data from the next sampling event, prepare a work plan addendum to treat the <br /> off-site hydrocarbons in the areas of well MW-3. <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. Evaluation of the geologic/hydrogeologic <br /> conditions at the site for the purpose of this investigation have been made from review of reports <br /> prepared by previous consultants and AGE, and a limited number of available data points (e.g., <br /> ground water and vapor samples collected from monitoring wells and extraction wells). Subsurface <br /> conditions may vary away from these data points. No other warranty, expressed or implied, is made <br /> as to the professional recommendations contained in this report. <br /> Advanced GeoEnvironmentai,Inc. <br />