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LANDFILL GAS MONITORING <br /> GEM 2000 CALIBRATION AND PERTINENT DATA <br /> Date: � , �C__-)6 Site Name: <br /> Technician: ��r' A;1di, Job No. <br /> WEATHER OBSERVATIONS <br /> Wind Speedo--5– MPH Wind Direction: "6t Barometric Pressure: a2,9 8"'Hg <br /> Air Temperature: �— °F General Weather Conditions: 704 <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. C <br /> Calibration Gas: %CH4�� %CO2 3 %02 <br /> Time CH4 CO2 02 <br /> Post-monitoring Calibration Check <br /> Time CH4 CO2 02 <br /> NOTES: <br /> Calibration Form GEM <br /> 3/31/06 11:54 AM <br />