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•1 , <br />' 13 September 2002 <br /> AGE-NC Project No 97-0290 <br /> tPage 6 of 6 2 <br />' Concentrations of benzene have ' crease in well MW-2 over the past quarter,yet remained <br /> significant at well MW-4 (off-site nzene was detected In wells MW-2 and MW-4 at <br /> concentrations exceeding the State of California-Department of Health Services maximum <br />' contaminant level (MCL) of 10 V g/l <br /> • A total of 165 gallons or 468 kg of gasoline(TPH-g and BTEX)were removed over the first <br /> three months of re-initiation of the SVE system Continued operation of the SVE should <br />' result in diminishing recovery, signifying a reduction of the hydrocarbon impact to soil <br />' 5.0. RECOMMENDATIONS <br />' Based on the findings of the environmental activities recounted in this report, <br /> • AGE recommends monthly monitoring of the SVEJAS operation <br />' 9 The next sampling event should be scheduled for May 2002 <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 subsurface conditions at <br /> the site for the purpose of this investigation was made from review of a limited number of available <br />' data points (soil vapor and 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 /> 1 <br /> 1 <br /> 1 - <br /> • <br /> Advanced GcoEnvironmental,Inc <br /> 1 <br />