Document Record Date Filed: 8/8/2008 11:48:53 AM View Document Document Type: TEST-Testimony Link to Document: View Document Number of pages: 7 Case Numbers: 08-0709-EL-AIR 08-0710-EL-ATA 08-0711-EL-AAM Summary: Direct Testimony of Keith G. Butler on behalf of Duke Energy Ohio. Source File(s):