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LANDFILL GAS MONITORING <br /> GEM 2000 CALIBRATION AND PERTINENT DATA <br /> Date: 'Y/n/6" Site Name: fonwx <br /> Technician: �5zJob No. <br /> WEATHER OBSERVATIONS <br /> Wind Speed: /—L( MPH Wind Direction: 5Q-) Barometric Pressure:-? Hg <br /> Air Temperature: 5�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. gf/ 7 <br /> Calibration Gas: %CH4 SD D %CO2 3�5_,_O %02 <br /> Time CH4 CO2 02 <br /> d sDa 3v iC <br /> Post-monitoring Calibration Check <br /> Time CH4 CO2 O2 <br /> (,0 <br /> NOTES: <br /> Calibration Form GEM <br /> 3/31/06 11:54 AM <br />