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LANDFILL GAS MONITORING <br /> GEM 500 CALIBRATION AND PERTINENT DATA <br /> Date: Z U� Site Name:j'b&)_N,PN2b <br /> Technician: ll Job No. bc) <br /> WEATHER OBSERVATIONS <br /> Wind Speed:CH Wind Direction: _ Barometric Pressure: "Hg <br /> Air Temperature: OF General Weather Conditions: 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 equalto2% of the calibration gas value. <br /> Instrument Serial NoC Al V1"' <br /> t�a <br /> Calibration Gas: %CH4 %CO2 %02 b <br /> Time CH4 CO2 02 <br /> Ok -�s �U <br /> Post-monitorin Calibration Check <br /> Time CH4 CO2 02 <br /> NOTES: <br /> Calibration Form GEM <br /> 12!12/03 9:08 AM <br />