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facility. These emissions will be controlled through appropriate vehicle maintenance <br /> and compliance with any applicable vehicle inspection requirements. <br /> A study has been conducted to determine and estimate the point source emissions <br /> from the plant process and utility systems. Potential vendors of combustion <br /> equipment were contacted to provide actual operating air emission data. Where <br /> vendor information was not available or not applicable, estimates of air emissions <br /> were developed from process material balances and engineering assumptions based <br /> upon process and equipment designs. This resulted in the identification of the <br /> following air emissions sources: <br /> A. Steam Boiler Flue Gas <br /> B. Product Dryer Blower Exhaust <br /> C. Product Dust Collection Exhausts <br /> D. Pregnant Tank Vent <br /> E. Cooling Tower Evaporation <br /> The following is a brief discussion of each air emissions source describing its <br /> function, the location and temperature of discharge, abatement equipment, and the <br /> emissions data. <br /> A. Steam Boiler Flue Gas <br /> The purpose of the boiler will be to supply steam for process heat and <br /> product drying. The proposed boiler is rated to produce 40,000 pounds per <br /> hour (pph) of 150 psig steam and will consume the largest quantity of <br /> hydrocarbon fuels used in the plant. The boiler will be housed inside the utility <br /> building and is specified to be fired with natural gas. <br /> The boiler flue gas will be exhausted through a vertical stack extending <br /> through the roof of the utility room with the discharge approximately 30 feet <br /> above the ground floor level. The temperature of the exhaust is estimated by <br /> the vendor to be approximately 328°F. <br /> G:\LMW\78545.002\Reclamation\Reclamexh.DOC D-48 <br />