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placed within the area of highest groundwater impact, about 10 feet southwest <br /> of well MW-1 (see Figure 2) Air sparging into SP-A is performed by <br /> supplying an approximate volume of 5 standard cubic feet per minute (scfm) <br /> Venting is performed by withdrawing an approximate volume of 25 to 35 <br /> scfm of soil gas from well VW-1 Soil gas is treated initially through a <br /> primary 1,000 pound granular activated carbon (GAC) adsorber and then <br /> through a secondary 160 pound GAC adsorber <br /> Permits to operate the remediation system and emit treated air have been <br /> obtained from the San Joaquin Air Pollution Control District (SJAPCD) <br /> Emission reports are routinely submitted to the SJAPCD The system is <br /> generally monitored weekly to ensure efficient operation and permit <br /> compliance <br /> A summary of days of system operation, recovered vapor concentrations and <br /> total pounds of removed contaminant is included in Table 6 of this report Soil <br /> vapor concentrations of the influent and effluent streams, observed from the <br /> weekly laboratory analysis of vapor samples, are reported in the Table 6 <br /> columns labeled Qmf) and C(eff), respectively Soil vapor extraction flow <br /> rates are labeled Q(inf) and Q(eff) The total pounds of contaminant removed <br /> by the soil vapor extraction system are tabulated under the PE columns <br /> M <br /> 1 <br /> r <br /> 1 <br /> 1 <br /> 1 <br /> r <br /> r <br /> 7 <br /> r August 2002 Groundwater Monitoring And Remediation Status Report <br /> The Earthgrains Baking Company <br /> 2651 South Airport Way Stockton,California <br /> Prepared for ruE EARTIIGRAINS BAKING COMPANY Prepared by Philip Services Corp <br /> H 1ENV\624001325 121362EG1Stotklan\Stockton10S02mon doc September 2,2002 <br />