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Over the life of the Southfield and previous Dorchester operations, the mine has <br />maintained a record of effective compliance with applicable provisions of <br />existing air quality permits. To date, there have been no violations of applicable <br />air quality standards, and ongoing permit compliance under State air emission <br />permits meets the specific requirements of the Federal Clean Air Act and <br />Colorado Air Pollution Control Act. <br />2.05.4-32 Revised 10/04/07 <br />MR-55 <br />