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20 February 2006 <br /> {i AG&NC-99-0570 <br /> Page 4 of 4 <br /> process TPH-d was not detected in any of the samples analyzed / <br /> • BTEX compounds were detected in wells MW-1 and MW-2 at maximum concentrations of <br /> 5 6 µg/l benzene (MW-1), 5 3 µg/1 toluene (MW-1), 45 µg/1 ethylbenzene (MW-2), and <br />' 9 7 µg/l xylenes (MW-1) MTBE was detected in well MW-1 at a concentration of 22 µg/l <br /> i J <br /> • The concentrations of TPH-g, BTEX compounds, and MTBE in well MW-1 decreased <br /> significantly compared to the last monitoring event in July 2005 The concentrations of <br /> TPH-g and ethylbenzene in well MW-2 increased,the concentrations of toluene and xylenes <br /> decreased <br /> 1 r <br /> SA. RECOMMENDATIONS <br />' Based upon the findings ndings of the November 2005 monitoring event, AGE recommends <br />' Continuation of quarterly ground water monitoring events The first quarter monitoring event <br /> was conducted on 06 February 2006 <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 mainly <br /> rupon analytical results provided by an independent laboratory Evaluations of the hydrogeologic <br /> conditions at the site have been made from a limited number of available data points(i e ,monitoring <br />' wells and ground water samples) and subsurface conditions may vary away from these data points <br /> No other warranty,expressed or implied,is made as to the professional interpretations,opinions,and <br /> recommendations contained in this report <br /> i <br /> Advanced GeoEnvironmental,Inc <br /> i <br />