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The particulates have been identified as a potential pollutant from the oil in the feed stocks and in the EPA document. Afterburners will be used to convert the unburned UOCs and combustible particulates to carbon dioxide and water. We therefore recommend that a particulate test and opacity test be conducted once every five years. COMPLIANCE WITH AIR QUALITY RULES The MPCA letter exempted the Permit Holder from obtaining an air emission permit from the Minnesota Pollution Control Agency (MPCA). This letter also stated that the Permit Holder must comply with the following air quality rules: 1. Particulate Matter Air Standards (MN Rules 7005.0450- 7005.0520). 2. Fugitive Emissions (MN Rule 7005.0550). 3. Odorous Emissions (MN Rule 7005.0900-7005.0930). 4. visible Emissions (MN Rule 7005). Particulate Matter (MN Rules 7005.0450-7005.0520) These rules set the maximum amount of particulates that can be emitted based on the process weight rate of the facility and determines the opacity levels that must be attained. The particulate emission rate is established by PR{ Rule 7005.05~0 Table 1 which is based on the following equation for process weights up to 60,000 lbs per hour: E= 3.59 P exp 0.62 where E= particulate emissions allowed per hour P= process weight rate in tons per hour (total weight of all materials introduced into any industrial process equipment). The particulate emissions for the Permit Holder under this rule is calculated as follows: Process weight is 1000 lbs aluminum per hour plus steel. The average aluminum composition is 50% and therefore the process weight (P) is 2000 lbs or 1 ton per hour. Therefore, E = 3.59 (1) exp 0.62 = 3.59 lbs per hour. The allowable particulate emission is 3.59 lbs per hour. The potential particulate emissions from the EPA publication is 0.95 lbs per hour. Therefore, the KN Rules allow approximate 4 times more than the calculated potential emissions.