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Y <br /> M <br /> LANDFILL GAS MONITORING <br /> GEM 2000 CALIBRATION AND PERTINENT DATA <br /> Dater Site Name: <br /> Technician A(16n6aij <br /> WEATHER OBSERVATIONS <br /> Wind Speed: MPH Wind Direction: Barometric Pressure ' `Hg <br /> Air Temperature: —OCC-17 General Weather Conditions: bear c <br /> CALIBRATION INFORMATION <br /> Pre-monitoring Calibration Precision Check <br /> Procedure: Calibrate the instrument. Make a total of three measurements by alternating zero air <br /> and the calibration gas. Record the readings and calculate the average algebraic difference <br /> between the instrument reading and the calibration gas as a percentage. The calibration <br /> precision must be less than or equal to 2%of the calibration gas value. <br /> Instrument Serial No. <br /> Calibration Gas: %CHZI�%CO2 / %02_ <br /> Time CH4 I CO2 02 <br /> Post-monitoring Calibration Check <br /> Time CH4 CO2 2 <br /> NOTES: <br /> Calibration Form GEM <br /> 3/31/06 11:54 AM <br />