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a 5 <br /> ATTACHMENT A (Suggested Revision) <br /> LANDFILL GAS (LFG) MONITORING PROGRAM <br /> Parameter Units Frequency <br /> Well Field <br /> Gas concentrations at each well <br /> Methane % by volume Monthly <br /> Carbon Dioxide % by volume Monthly <br /> Oxygen ' % by volume Monthly <br /> Remainder gas ' % by volume Monthly <br /> Gas Temperature at each well OF Monthly <br /> Gas Pressure at each well <br /> Initial static pressure in wellhead inches H2O Monthly <br /> Adjusted static pressure in wellhead inches H2O Monthly <br /> Flare Station <br /> Temperature into LFG Plant OF Monthly <br /> Pressure into the LFG plant inches H2O . Monthly <br /> LFG Flow rate into the Plant CFM Monthly <br /> Total halogenated VOCs lag/cm3 Semi-annually <br /> Perimeter LFG Migration Monitoring Probes GWA through GW-7 <br /> As Identified in the WDR and MRP <br /> Gas Concentration <br /> Methane % by volume Quarterly <br /> Carbon Dioxide ' % by volume Quarterly <br /> Oxygen ' % by volume Quarterly <br /> Remainder gas ' % by volume Quarterly <br /> Probe Pressure inches H2O Quarterly <br /> Notes: <br /> 1: Measurement of CO2, 02 and "remainder gas" may be postponed due to unavailability of <br /> gas measurement instrument during factory-calibration. Measurement of methane will be made <br /> by other instruments that may not allow measurement of CO2, 02 and "remainder gas". <br /> Comments to Second Draft CDO 7 San Joaquin County <br /> Submitted February 28,2013 Public Works/Solid Waste <br />