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Mr. Thomas C. Allen, II <br /> NC DEHNR DAQ <br /> August 25, 1998 <br /> Page 4 <br /> Table 1 <br /> Recalculation of NMOC Emissions <br /> Orange Regional Landfill,North Carolina (Permit No. 68-01) <br /> The following is a summary of NMOC values calculated by NC DAQ using NSPS/CAA <br /> emission factors and those calculated using both NSPS/CAA and AP-42 emission factors. NC <br /> DAQ officials have tentatively approved the use of the AP-42 emission factors recommended by <br /> the US EPA. The calculations were performed using the US EPA LandW in model ' computer <br /> program developed for US EPA. Output sheets for the recalculated emissions are presented in <br /> Attachments A & B. <br /> Northern Southern Total <br /> Unit Unit Landfill <br /> MSW Design Capacity 891.550 Mg9 770,000 Mg 1,661,550 Mg <br /> (810,500 tons) (700,000 tons) (1,510,500 tons) <br /> Years of Operation 1972-1995 1995-2006 1972-2006 <br /> Max.NMOC generation rate <br /> (per NC DAQ calculations) 1,447 Mg/year <br /> (1,315 tons/year) <br /> Max. NMOC generation rate 133.8 Mg/year in 1995 1318 Mg/year in 2006 209.9 Mg/year in 2006 <br /> (New calculations using CAA) 121.6(tnns/year) 120.7(tons/year) I90.8(tons/year) <br /> Max.NMOC generation rate 12.5 Mg/year in 1995 12.1 lvig/year in 2006 20,2 Mg/year in 2006 <br /> (ALMES calculations using AP 42) 11.4(tons/year) l 1.0(tons/year) 18.37(tons/year) <br /> Notes: <br /> Multiply Mg (megagrams) by 1.1 to convert to tons. <br /> Landfill Air Emissions Estimation Model,Windows Version 1.0, US Environmental Protection Agency, <br /> Control Technology Center,Research Triangle Park,NC, March 1996. <br /> AWES&ASSOCIATES,INC. <br /> CONSULTING ENGINEERS <br /> P-\O)ocumentAChapFtlI1-595VR97-945 V97.945.AFen.i:AQ.325-5P.doc R77-945.595 <br />