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Vapor Extraction Test Procedures <br /> • Vapor extract from MW2 <br /> • Start up blower, initiate vapor extraction at low flow and step up flow rate/vacuum <br /> throughout the test at 30 to 60 minute intervals if possible <br /> ' • Monitor flow, temperature influent and effluent concentrations with PID/CVA, vacuum, <br /> and pressure for extraction and observation wells at 15 minute intervals <br /> 0 Monitor response ui observation wells at 15-minute intervals <br /> 0 Check knockout drum regularly, empty as needed Reduce/flow vacuum if pulling to <br /> much water <br /> ' 0 Collect an influent and effluent vapor sample after approximately 15 minutes of operation <br /> for laboratory analysis of TPHg/BTEX and oxygenates by TO-14 (Samples to Sun Star) <br /> • Collect an influent sample at the end of the test for laboratory analysis of TPHg/BTEX <br /> and fuel oxygenates by TO-14 (Samples to Sun Star) <br /> • Vapor extract for 8 hours <br /> ' 0 Pack up equipment and secure site <br /> 1 <br /> AlexF Dzeselvet <br />