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FIGURE 1 <br /> TIER EVALUATION FLOW CHART <br /> Tier 1 <br /> Using landfill characteristics and default <br /> values for k. L. and concentration of <br /> nonmethone organic compounds (NMOL). <br /> No determine if the landfill is exempt from <br /> control requirements. _ <br /> Landfill <br /> does not Yes Is landfill dosed? Exempt from control? <br /> require control <br /> Repeat Tier 1 each year. <br /> Yes <br /> No Install Controls <br /> Or <br /> Tier 2 <br /> Determine the landfill NMOC concentration <br /> using EPA test procedures. Redetermine <br /> if the landfill is exempt from control <br /> No requirements using site—specific NMOC <br /> concentration. <br /> Landfill <br /> does not Yes Is landfill dosed? Exempt from control? <br /> require control Repeat Tier Z updating the NMOC <br /> concentration data at the specified <br /> intervals. <br /> Yes <br /> No Install Controls <br /> Or <br /> Tier 3 <br /> Determine the landfill gas generation rate <br /> using EPA test procedures. From the <br /> No site—specific k and NMOL concentration <br /> dote, redetermine if control is required. <br /> Landfill <br /> not Yes Is landfill closed? <br /> _. <br /> require <br /> control Repeat Ter 3, updating the NMOLLNo <br /> control? <br /> concentration data at the specific <br /> intervals. Updating the rate constant <br /> value is not required. <br /> Ye <br /> Install Controls <br /> Source: Federal Register/Vol. 56. No. 104/Thursday. May 30. 1991/Proposed Rules. <br /> WW-1811-CAl-AA/3110 Austin Road Landfill Expansion August 3,1995 <br /> MLI037.DOC Landfill Gas Generation and Emissions <br />