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C <br />L <br />L' <br />LANDFILL GAS MONITORING <br />GEM 2000 CALIBRATION AND PERTINENT DATA <br />Date: v 1 , 16-\,o <br />Technician: l Aw;6 C)P�xiA <br />Site Name:Si <br />Job No. <br />Wind Speed: MPH Wind Direction:` Barometric Pressure: "_"Hg <br />Air Temperature: 1-7:> °F General Weather Conditions: <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. 6 M obs: -1 I 6&Z � <br />Calibration Gas: %CH4 %CO2 Ste' 0 %02 0.6 <br />Time CH <br />C 2 <br />02 <br />Post-monitoringCalibration Check <br />Time I ICH4 C 2 02 <br />I�31 1 d <br />