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Ay� <br /> SEIC ® R <br /> 1 t <br /> Groundwater has been monitored and sampled on a quarterly basis from 1991 to the present M <br /> During the year of 1997, groundwater was not monitored or sampled During the past year (2003) <br /> groundwater flow has been toward the northeast Maximum reported concentration of MtBE and <br /> TBA during the fourth quarter 2003 were 140 ppb (MW-11)and 160,000 ppb (MW-7), respectively <br /> F� <br /> RECENT QUARTER ACTIVITIES (Fourth Quarter 2003) <br /> 1 Performed quarterly groundwater monitoring and sampling (TRC) <br /> 2 Prepared and submitted a quarterly summary report <br /> 3 Performed ozone sparge system operation and maintenance <br /> NEXT QUARTER ACTIVITIES (Fourth Quarter 2003) <br /> 1 Prepare and submit a quarterly summary report <br /> r <br /> 2 Perform quarterly groundwater monitoring and sampling <br /> 3 Perform ozone sparge system operation and maintenance <br /> CHARACTERIZATION/REMEDIAL STATUS <br /> Soil contamination delineated? Yes <br /> Dissolved groundwater delineated? No <br /> Free product delineated? NIA <br /> Soil/Groundwater remediation in progress? Yes <br /> Start? Dec 2002 <br /> Anticipated completion date? 2005 <br /> RECOMMENDATIONS/DISCUSSIONS <br /> Continue operation of the ozone sparge remedial system and quarterly monitoring and sampling <br /> CONSULTANT: SECOR International Incorporated <br /> r <br /> 4 <br /> s <br /> h <br /> n <br /> a <br /> • <br /> s <br />