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LANDFILL GAS MONITORING <br /> GEM 500 CALIBRATION AND PERTINENT DATA <br /> Date: 2/ /o� Site Name: fi3r'�^Z <br /> Technician: Job No. <br /> WEATHER OBSERVATIONS <br /> Wind Speed: MPH Wind Direction: _ �c�) Barometric Pressure/:-90,iY "Hg <br /> Air Temperature: S °F 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. x"32-7 <br /> Calibration Gas: %CH4:�5D,,0 %CO2 3� .,0 %02 Aee <br /> Time CH4 CO2 02 <br /> U 7 Z � <br /> Post-monitoring Calibration Check <br /> Time CH4 CO2 02 <br /> 7 3s 1 <br /> NOTES: <br /> Calibration Form GEM <br /> 1 211 2/03 9:08 AM <br />