Request to provide information pursuant to the Clean Air Act FR: Stephen Rothblatt, Director, Air and Radiation Division, U.S. EPA Region V TO: Mark Shelly, President, Shelly Materials, Inc. DT: April 21, 2004 Page 1, Page 2, Page 3, Page 4, Page 5, Page 6, Page 7, Page 8, Shelly Asphalt page