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3) Based on the conclusions arrived at in the risk analysis, detemune whether passive remediation is <br /> sufficient to meet water quality goals or identify potential active remediation technologies that would <br /> be suitable for meeting these goals <br /> 4) Calculate the zone of influence and zone of capture for the potential active remediation systems to <br /> compare their cost-effectiveness <br /> ) Continue quarterly groundwater monitoring of the groundwater plume We recommend that the <br /> eva ion of monitoring well GT-9 be re-checked in the next quarterly monitoring event to determine <br /> Nether a surveying error could account for the anomalous groundwater elevation reported for the <br /> current quarter We also recommend that wells GT-1, GT-2, and GT-3 be pumped at a rate sufficient <br /> to draw down the water elevation to the screened interval, if possible, so that groundwater samples <br /> could be collected from these wells <br /> 6) Dispose of the stockpiled soil and purged groundwater that are currently stored on site We <br /> recommend that this be done when the fourth quarter groundwater monitoring is performed in early <br /> December <br /> i <br /> • <br /> 17 <br />