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ANDFILL GAS MONITORING <br /> GEM 5 CALIBRATION AND PERTINENT DATA <br /> Date: Site Name: <br /> . f <br /> Technician: C Job No. <br /> WEATHER OBSERVATIONS <br /> Wind Speed: MPH Wind Direction: v`" Barometric Pressure:? '�"Ng <br /> Air Temperature: OF General Weather Conditions: <br /> CALIBRATION INFORMATION <br /> Pre-monitoring Calibration Precision Check <br /> Procedure:Calibrate the instrument intake 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. <br /> Calibration Gas: %CH4 'O%CO2 %02 <br /> Time CH4 CO2 02 <br /> Post-monitodng Calibration Check <br /> Time CH4 CO2 02 <br /> NOTES: <br /> Callln a lon Form GEM <br /> 12112103 9:08 AM <br />