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LANDFILL GAS MONITORING <br /> GEM 500 CALIBRATION AND PERTINENT DATA <br /> Date: 21jy1 G Site Name: c�Q�� <br /> Technician: Job No. <br /> WEATHER OBSERVATIONS <br /> Wind Speed: /-3. MPH Wind Direction: 5co Barometric Pressure:30,6Z-"Hg <br /> Air Temperature: 7/ O OF General Weather Conditions: �� � <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. '9�3_7 <br /> Calibration Gas: %CH4 '!5D,y %CO2 36-,y %02 <br /> Time CH4 CO2 02 <br /> Post-monitorin Calibration Check <br /> Time CH4 CO2 02 <br /> NOTES: <br /> Calibration Form GEM <br /> 12/12/03 9:08 AM <br />