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i <br /> � { 404 WEST FREMONT STREET <br /> Vs/KA No. 1628 .09 <br /> ( � August 31 , 2001 <br /> r Page 12 <br /> • Vacuum pressure <br /> • Carbon dioxide levels <br /> (' • Soil vapor extraction vacuum flow rate <br /> • Soil gas temperature <br /> • Soil gas pressure <br /> • Continuity of air sparging and vacuum extraction blower operation <br /> • Petroleum hydrocarbon concentrations and VOC concentrations in the vapor extraction <br /> wells <br /> • Petroleum hydrocarbon concentrations of influent and effluent soil gas concentrations <br /> I (upstream and downstream of the carbon canisters) <br /> Ll <br /> In the event of breakthrough of the carbon filters, the positions of the filters will be switched. <br /> Influent and effluent air samples will be obtained on scheduled routine basis to determine carbon <br /> breakthrough. Influent and effluent air samples will be obtained from the SVES and submitted to a <br /> LJ <br /> California State-certified laboratory for analysis of TPH as gasoline BTEX and oxygenates using <br /> [[ EPA Method 8260B . Destruction efficiency for the soil gas will be a minimum of 100%. <br /> Therefore, the anticipated emission rates discharged to the atmosphere is estimated to be zero <br /> pounds per day using 100 percent destruction efficiency. <br /> Fk <br /> We anticipate operating the remediation system for a minimum of 12 months. The estimated <br /> c ) operating schedule is 24 hours per day at seven days per week. The groundwater will be <br /> continuously monitored on a quarterly basis to evaluate the effectiveness of the air sparging/soil <br /> —I vapor extraction system. <br /> _ PermlttinQ <br /> The treatment system will be designed and constructed in accordance with the city of Stockton <br /> building, electric and fire codes. Subsequent to the installation of the air sparging/soil vapor <br /> extraction system equipment, the as-built system will be permitted for operation following <br /> inspection from San Joaquin County Public Health Services (SJCPHS), the City of Stockton Public <br /> [ 1 Works Department (SPWD) and the San Joaquin Valley Air Pollution Control District <br /> - (SJVAPCD), <br /> j <br /> jjT <br /> vune�.ncF= . orua� i- <br /> ie., a. ,i ;.,;. , rl A. 90CWYF S INC. <br />