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r 1 <br /> 07 February 1999 <br /> AGE-NC Project No �95-0135 <br /> Page 4 of 4 <br /> • The fuel additives DIPE, TAME, ETBE and MTBE were detected on the site MTBE was <br /> detected at concentrations exceeding the State of California action level <br /> • 4 I <br /> 5.0. RECOMMENDATIONS <br /> F <br /> Based on the results of this and previous investigations, AGE recommends <br /> • Continued quarterly monitoring of the site The next monitoring event should conducted in <br /> March 2000 <br /> Additional soil borings should be installed to assess ,the lateral extent of hydrocarbon- <br /> impacted soil north of the former UST area and in the area of well MW-1 <br /> • Additional ground water monitoring wells should be installed to determine the lateral extent <br /> of hydrocarbon-impacted ground water, south of the former UST area and north and west of <br /> well MW-1 Additional ground water investigation is required northeast and northwest of the <br /> site <br /> • Once the soil and ground water impact has been defined, a work plan should be prepared for <br /> feasibility testing to evaluate various remedial alternatives at the site <br /> G.D. LIMITATIONS <br /> I 5 <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 on k <br />�+ analytical results provided,by an independent laboratory Evaluations of the geologic/hydrogeologic <br /> conditions at the site for the purpose of this investigation are made from a limited number of_ <br /> I available data points (i a 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 /> r 5 <br /> r � <br /> V J 1 s <br /> 5 <br /> Advanced GeoEnvironmental;Enc y <br /> 5 r <br /> I � <br /> 7 <br />