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LANDFILL GAS MONITORING <br /> GEM 2000 CALIBRATION AND PERTINENT DATA <br /> Date: Site Name: f <br /> Technician: Job No. , w <br /> WEATHER OBSERVATIONS <br /> Wind Speed: MPH Wind Direction: Barometric Pressure Hg. <br /> _aP� <br /> Air Temperature:ALe—°F 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 and the <br /> calibration gas. Record the readings and calculate the average algebraic difference between the <br /> instrument reading and the calibration gas as a percentage. The calibration precision must be less than <br /> or equal to 2%of the calibration gas value. <br /> Instrument Serial NoGMOZr— <br /> Calibration Gas: %CH4 ,(�%CO2 � A02 <br /> Time <br /> cs•ta c02 � a2 <br /> Post-monitoring Calibration Check cot <br /> Time CH4 <br /> NOTES: <br /> Calibration Form GEM <br /> 10/30/06 7:36 AM <br />