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11 <br />LANDFILL GAS MONITORING <br />GEM 2000 CALIBRATION AND PERTINENT DATA <br />Date:1126 <br />Technician: Mid C;N � t�5 <br />Site Name: TUa"JN�a� <br />Job No. 01,1 <br />Wind Speed: JS _ 70 MPH Wind Direction: E' Barometric Pressure: 'Hg <br />Air Temperature: --5b—'F General Weather Conditions: L-1 ct�AJ ZLI <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. e5ls O <br />Calibration Gas: %CH4 - %CO2 n ° D %02 D _ '? <br />Time CH4 CO2 02 <br />Pn,t-mnnitnrinn Calihration Check <br />Time <br />CH4 <br />CO2 02 <br />NOTES: <br />