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1 GeoAudit 2/26/93 <br /> Page 3 of 4 <br />' ACTIONS PLANNED FOR THE FIRST QUARTER, 1993 <br /> In order to more accurately access the progress of remediation and <br />' to predict when removal of hydrocarbons has reached the limits of <br /> effectiveness, several actions are planned for the first quarter of <br /> 1993 . These actions involve the collection and chemical analysis <br />' of a vapor sample from the process stream entering the IC engine. <br /> The results will be used to assess several parameters which are as <br /> follows. <br />' Assess the relationship between the concentrations of <br /> hydrocarbons being monitored and recorded from the inlet <br /> stream using the PID with the actual concentrations of <br />' gasoline hydrocarbons being removed from the ground. <br /> Determine if aromatic volatile organic compounds (BTEX) <br />' are being removed by the vapor extraction and, if so, the <br /> concentration of BTEX in the process stream. <br /> Estimate the amount of hydrocarbons initially in the soil <br /> by incorporating in the calculation data from soil <br /> samples collected during the installation of the vapor <br />' extraction well, Well MW--2 . <br /> From the above data it should be possible to more accurately <br />' estimate: <br /> The amount of hydrocarbons which can be expected to be <br />' removed by vapor extraction <br /> The total amount of hydrocarbons which have been <br />' extracted <br /> The current rate of hydrocarbon extraction <br /> The amount of hydrocarbons remaining which are <br /> extractable <br /> ' The length of time necessary to extract the remaining <br /> recoverable hydrocarbons <br /> Analysis of these data should provide a more accurate picture of <br /> the status of the remediation project than available in the past. <br /> If remediation is indicated to be nearing the limits of <br /> effectiveness, a confirmational sampling plan will also be <br /> ' proposed. <br />