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TABLE 2 <br /> POTENTIAL TO EMIT EMISSION SOURCE ESTIMATES FOR WASTE GAS FLARE <br /> FORWARD LANDFILL <br /> MANTECA,CALIFORNIA <br /> Notes: <br /> (a)List of hazardous air pollutants was from Title III Clean Air Act Amendments,1990,and include compounds found in landfill gas,as determined <br /> from a list in APA2 Tables 2.4-1("Default Concentrations for Landfill Gas Constituents,11/98"). <br /> (b)Average concentrations of HAPs were taken from WIAC data. <br /> (c)Pollutant emission rate based on estimated maximum rate that control device is expected to handle. <br /> (d)Values taken from AP-42 Table 2.4-3("Control Efficiencies for LFG Consituents") <br /> (e)Concentration of HCI is based on AP-42 Section 2.4.4.2.(11/98) <br /> (f)Concentration of Mercury based on EPA AP-42 Section 2.4 Table 2.4-1(11198). <br /> (g)VOCs assumed to equal NMOCs <br /> (h)Based on outlet concentration of 20 ppmv as hexane(BACT/NSPS)and an estimated maximum exhaust rate of 2,267 SCFM <br /> (i)Based on exhaust flow from manufacturer specification <br /> Variables: <br /> MODEL INPUT VARIABLES: <br /> Max LFG Collection Rate to Flare(c)@ 47%methane 200 SCFM <br /> Max LFG Collection Rate to Flare @ 50%methane 188 SCFM <br /> Max LFG Exhaust Rate from Flare(i) 2,267 SCFM <br /> Exhaust Oxygen per Manufacturer 3 <br /> Flare Rating 5.64 MMBtu/hr <br /> Criteria pollutant emission factors used for flare: <br /> Pollutant Emission Factor Data Source <br /> NMOCsNOCs 20 ppmv outlet @3%02 as hexane BACT/NSPS <br /> CO 0.20 Ib/MMBtu Manufacturer's Guarantee/BACT <br /> SO2 150 ppmv BACT <br /> NO, 0.041 Ib/MMBtu Manufacturer's Guarantee/BACT <br /> PM10 0.2 Ib/MMBtu Field Testing by Ameresco <br /> (SO2) <br /> Emi <br /> Emissions from the Flare[toNyr]=(Molecular Weight of SO2/Molecular Weight of H2S)'((Molecular Weight of H2S[g/mol])'(Concentration of Compound[ppmv]/1,000,000) <br /> *(LFG Flow to Flare[cfm])*(60 min/hr)*(24 hr/day)*(365 day/year)`(1ton/20001b)*(1 lb/453.6g)*(lmol/24.04L @ STP)*(28.32L/1cf)) <br /> IVOCI <br /> Emissions from the Flare[toNyr]=((Molecular Weigh of NMOC as hexane[g/mol])`(Concentration of Compound[ppmv]/1,000,000) <br /> '(Exhaust rate from Flare[cfm])*(60 min/hr)*(24 hr/day)*(365 day/year)'(1ton/20001b)*(tlb/453.6g)'(1 moU24.04L @ STP)*(28.321J1cf)) <br />