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1 The VOC concentrations in extracted vapor will be measured by analyzing an air sample <br /> collected in a 1-liter Summa canister from the SVE test well influent at the end of the SVE <br /> only pilot test, and three times during the combined AS/SVE test Data will be evaluated <br /> to determine whether sparging results in an increase in extracted vapor concentrations <br /> The vapor sample will be analyzed by a California certified analytical laboratory for VOCs <br /> by EPA Method TO-15 The laboratory will identify approximately 60 individual VOCs <br /> commonly analyzed at reporting limits ranging from 0 5 to 2 0 parts per billion by volume <br /> (ppbv) In addition, the laboratory will provide a total VOC value that represents the sum <br />' of all compounds detected The laboratory shall provide the analytical results in both <br /> ppbv and micrograms per liter (ug/L) for mass removal calculations The samples shall <br /> be collected, prepared, and handled following Standard Operating Procedures (SOPs) for <br />' vapor samples <br /> Reporting Total VOC concentrations measured at the system influent will be plotted <br /> versus time Total VOC mass removed and the mass removal rate during the pilot test <br />' will be calculated Flow rates will be corrected to standard temperature and pressure <br /> (STP) for the mass calculations <br /> Equipment The primary equipment used during the pilot test consists of a portable <br /> vacuum pump powered by a 7 5-horsepower electric motor with electrical power supplied <br /> by a 40-kilowatt 240-volt portable generator Emissions from the test will be controlled <br /> with granular activated carbon (GAC) consisting of two 55-gallon GAC units placed in <br /> series Flow rate data will be collected during the test using a pitot tube magnehelic type <br /> flow meter, and vacuum measurements will be collected using a calibrated magnehelic <br /> vacuum gauge A portable photoionization detector (PID) will be used to measure total <br /> VOCs at the system influent and to measure the GAC units for breakthrough If <br /> breakthrough occurs, either a fresh GAC unit will be installed or the test will be <br /> terminated <br />' A detailed equipment list for the pilot test is provided below <br />' • SVE remediation system trailer or skid mount with Therm-ox or Cat-ox unit, blower, <br /> and associated controls and piping <br /> ■ Air compressor <br /> ■ Power source <br /> • 4 1-liter certified and evacuated Summa canisters <br />' Small vacuum pump for low flow soil vapor sampling (if required) <br /> ■ PID to measure total VOCs and monitor GAC breakthrough <br /> ■ Calibrated magnehelic vacuum gauges for vacuum measurements <br />' 6" PVC well vacuum connection (with gauge, inches H20) <br /> ■ 4" brass-tipped PVC well vacuum pressure cap(s) <br />' 3" brass-tipped PVC well vacuum pressure cap(s) <br /> ■ 2" brass-tipped PVC well vacuum pressure cap(s) <br /> ■ Pitot tube magnehelic type flow meter (CFM) <br /> ■ Camlock hoses (for hooking up the system) <br /> ■ Air hose to connect compressor to well head <br /> ■ Flowmeter <br /> • Pressure gauge <br /> ■ 1" diameter Sch 40 PVC pipe for downtube in monitoring well <br />' P 1280001128253-T&T Trucking SVEIAS-SVE Combined Procedures doc <br />