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LANDFILL GAS MONITORING <br /> GEM 500 CALIBRATION AND PERTINENT DATA <br /> Date: .3f25�Q6 • <br /> Site Name: 164�2 <br /> Technician: Job No. __O? d-0- Q/ <br /> WEATHER OBSERVATIONS <br /> Wind Speed. MPH Wind Direction: Barometric Pressure:mos "Hg <br /> Air Temperature: ! OF General Weather Conditions; 0Un�/—v <br /> CALIBRATION INFORMATION <br /> Pre-monitoring Calibration Precision Check <br /> Procedure; Calibrate the instrument. Make a total of three measurements by al#emating zero air,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 <br /> Calibration Gas: %CH4 P 0 %CO2 0 %02 <br /> Tim e CH4 CO2 02 <br /> /6rnn <br /> Post-monitorin Calibration Check <br /> Tirrae /CH4 COQ 02 <br /> NOTES: <br /> CaUhration.Form GEM <br /> 12/9 2/03 9:08 AM <br />