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LANDFILL GAS MONITORING <br /> GEM 500 CALIBRATION AND PERTINENT DATA <br /> Date: .312!` 10j Site Name: °r - <br /> :]� <br /> Technician: Job No. z cam.Q/ <br /> WEATHER OBSERVATIONS <br /> Wind Speed: MPH end Direction:�5 ._ f3arometric Pressure:3- "Hg <br /> Air Temperature: V °F General Weather Conditions: occ4cf.�/ �w- 2� <br /> CALIBRATION INFORMATION <br /> Pre-monitoring Calibration Precision Check <br /> Procedure; Calibrate the instrument, Make a total of three measurements by aitemating 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 296 of the cafibration gas value. <br /> Instrument Serial No. S19- / <br /> Calibration Gas: %CH4 60,D %CO2 <br /> Time CH4 CO2 02 <br /> Post-monitorin2 Caiibation Check <br /> Time I CH4 CO2 02 <br /> ren S'a, / � l ti <br /> NOTES: <br /> CaUhrafian.Form GEM <br /> 1217?J03 9_�8 AM <br />