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LANDFILL GAS MONITORING <br /> GEM 2000 CALIBRATION AND PERTINENT DATA <br /> Date: Site Name: 07262 G57',O/ <br /> Technician: Job No. <br /> WEATHER OBSERVATIONS <br /> Wind Speed: MPH Wind Direction: SQJ Barometric Pressure:--3n0"Hg <br /> Air Temperature: 57 v °F General Weather Conditions: X2c%vJ <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: %CH4(5Dt 6 %CO2 36-0 %02 <br /> H <br /> CH4 ICO2 02 <br /> S0, / 13s;v 2 <br /> Post-monitoring Calibration Check <br /> Time CH4 CO2 02 <br /> NOTES: <br /> Calibration Form GEM <br /> 3/31/06 11:54 AM <br />