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LANDFILL GAS MONITORING <br /> GEM 500 CALIBRATION AND PERTINENT DATA <br /> Date: -31X%6 Site Name: j <br /> Technician: Job No- 0-7-Z0120-55-10 / <br /> WEATHER OBSERVATIONS <br /> Wind Speed: MPH Wind Direction: Barometric Pressure: —:76-y AHg <br /> Air Temperature: .SZ °F General Weather Conditions:_ �� <br /> CALIBRATION INFORMATION <br /> Pre-monitoring Calibration Precision Check <br /> Procedure: Calibrate the instrument. Make a total of three rneasuremcnts by altemating zero air <br /> and the calibration gas. Record the readings and calculate the average algebraic difference <br /> between the instrument reading and tha calibration gas as a percentage. The calibration <br /> precision must be less than or equal to 2.�6 of the calibration gas value. <br /> Instrument Serial No. �T / <br /> Calibration Oas: %CH4 SPD of CO2 % <br /> Time C F14 Cpl <br /> 02 <br /> Past-monitoring Calibration Check <br /> Time CH9 CO2 <br /> 02 <br /> NOTES: <br /> oaGbation Form Gi=M <br /> 1 217 2103 9:08 AM <br />