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1 <br />1 <br />1 <br />1 <br />1 <br />Environmental Contractors <br />FOOTHILL <br />LANDFILL GAS MONITORING <br />GEM 2000 CALIBRATION AND PERTINENT DATA <br />DATE: 1/14/2009 <br />TECHNICIAN: Mcalmes <br />TEMPERATURE: 62 <br />BAR. PRESSURE: 30.00 <br />WEATHER: Clear <br />WIND DIRECTION: East SPEED: 2 <br />SITE ID: 1400 <br />JOB NO.: 07206051.00 <br />CALIBRATION INFORMATION <br />Pre -monitoring Calibration Precision Check <br />Procedure: Calibrate the instrument. Make a total of three measurements by alternating zero air and the <br />calibration gas. Record the readings and calculate the average algebraic difference between the instrument <br />reading and the calibration gas as a percentage. The calibration precision must be less than or equal to 2% of <br />the calibration gas value. <br />Instrument Type: GEM 2000 Instrument Serial No. 8373 <br />Calibration Gas: <br />CH4 % <br />CO2 % <br />02% <br />50.0 <br />35.0 <br />0.0 <br />Pre -monitoring Calibration Check <br />Time CH4 % CO2 % 02% <br />7:00 AM 50.0 35.0 0.0 <br />Post -monitoring Calibration Check <br />Time CH4 % CO2 % 02% <br />11:00 AM 50.0 35.0 0.0 <br />COMMENT 1: <br />COMMENT 2: <br />REVIEWED BY: <br />DATE: <br />