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20 May 1998 <br /> AGE-NC Project No 95-0130 <br /> Page 5 of 5 <br /> 5.0. RECOMMENDATIONS <br /> Based on the results of this and previous monitoring events, and on AGE's familiarity with the site, <br /> AGE recommends <br /> Installation of the remediation s on regulatory approval of the stem should commence u <br /> • Y P <br /> Remedial Action Work Plan, dated 03 July 1997, submitted to the PHS-EHD for an in-situ <br /> soil vapor extraction/air sparging system within the petroleum hydrocarbon "core area" <br /> • Continued utilization of wells V W-1 C, VW-2A and VW-3 A for chat actenzation of ground <br /> water conditions in the "core area" <br /> • Continued quarterly ground water monitoring The next quarterly monitoring and sampling <br /> is scheduled for May 1998 <br /> • Installation of at least two additional ground water monitoring wells downgradlent of the <br /> site Furthermore, based on the downgradient location of MW-3 relative to the existing and <br /> former UST areas, an additional well should be installed adjacent to MW-3 to monitor <br /> dissolved petroleum hydrocarbons at the top of the saturated zone (the top of the screened <br /> lie interval is approximately 15 feet submerged in ground water) <br /> • Completion of any additional monitoring wells installed at the site with multiple screened <br /> intervals to allow for the extreme fluctuation of ground water elevation in the area <br /> G.O. LIMITATIONS <br /> Our professional services were performed using that degree of care and skill ordinarily exercised by <br /> I environmental consultants practicing in this or similar localities The findings were based upon <br /> analytical results provided by an independent laboratory and a well casing elevation survey <br /> performed by an independent sub contractor Evaluations of the geologic/hydrogeologic conditions <br /> at the site for the purpose of this investigation were made from a limited number of available data <br /> points(I a monitoring well ground water samples), and subsurface conditions may vary away from <br /> these data points No other warranty, expressed or implied, is made as to the professional <br /> recommendations contained in this report <br /> I <br /> Advanced CeoEnvironmental,Inc <br />