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LANDFILL GAS MONITORING <br /> GEM 2000 CALIBRATION AND PERTINENT DATA <br /> Date: 00 Site <br /> Technician: �A�`-� Job No. o�t72A-zt�>sC�66 <br /> WEATHER OBSERVATIONS <br /> Wind Speed: 'S'(o MPH Wind Direction: U-) Barometric Pressure:X,, -'7 "Hg <br /> Air Temperature: _ °F General Weather Conditions: (LA \r_� <br /> CALIBRATION INFORMATION <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. CA �n) <br /> Calibration Gas: %CH4 o %CO2 3SdO %02 <br /> Time CH4 CO2 02 <br /> Post-monitoring Calibration Check <br /> Time CH4 CO2 02 <br /> NOTES: <br /> Calibration Form GEM <br /> 3/31106 11:54 AM <br />