This is our seventh semiannual report to Congress. It summarizes our major activities and accomplishments from April 1, 1989 to September 30, 1989.During this reporting period, we issued 31 final audit reports, 131 investigative reports, and 6 project reports to TVA management. These investigations and audits have demonstrated their cost-savings potential. For example, one investigative project--involving over 650 interviews--has resulted in TV A management's withholding over $4.3 million from TVA contractors.