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<br />3 <br /> <br />COMPLIANCE WITH STATE REGULATIONS <br /> <br />Minnesota State Regulation APC-9 states that no source shall <br />discharge into the ambient air any odorous contaminants in excess of <br />the following concentrations: <br /> <br />(1) 150 odor units per cubic foot; for sources 50 feet or more <br />above grade level <br /> <br />(2) 25 odor units per cubic foot; for sources less than 50 feet <br />above grade level. <br /> <br />In addition and regardless of stack height, no source may emit <br />more than one million odor units per minute. <br /> <br />Under the conditions tested, the scrubber exhaust emissions <br />are in compliance with the above standards. <br /> <br />5 <br />