Tennessee Valley Authority

On December 22, 2008, a major dike failure occurred on the north slopes of the ash pond at the Tennessee Valley Authority's (TVA) Kingston Fossil Plant. This failure resulted in the release of approximately 5.4 million cubic yards of coal ash spilling onto adjacent land and into the Emory River. TVA...

We audited the cost billed to TVA by a contractor for performing preheat and post-weld heat treatment services and found the contractor (1) had billed certain tasks at lump sum prices instead of using the time and material billing rates provided for by the contract and (2) overbilled or could not...

The OIG performed a review of the City of Oxford Electric Department (Oxford) which is a distributor for TVA power based in Oxford, Mississippi. Our review of Oxford found issues involving customer classification and metering that could impact (1) the proper reporting of electric sales and (2)...

This redacted Report of Administrative Inquiry regarding a personnel matter was released on September 14, 2009, in response to an administrative appeal of a FOIA request.The OIG reported that a TVA employee provided false information to the OIG during an OIG inspection of the Maintain and Gain (M&G)...

We audited $2.8 million in subcontractor costs billed to TVA by a contractor for work related to the restart of Browns Ferry Nuclear Plant Unit 1. Our preliminary review of the costs billed by the subcontractors caused us to have concerns that certain costs that were billed may have also been billed...

We audited $25 million of costs billed to TVA by a contractor for providing research and development activities. In summary, we found (1) TVA made invoice payments in advance of the work being performed, thus losing an estimated $1,125,000 in interest over the audit period, (2) project status...

We audited the costs billed to TVA by a contractor for providing (1) modification and supplemental maintenance services at TVA nuclear plants (operating unit work) and (2) construction services for the restart of Browns Ferry Nuclear Plant Unit 1 (BFN U1). The scope of our review included $272.2...

The OIG performed a review of the Hickman-Fulton Counties Rural Electric Cooperative Corporation (Hickman-Fulton) which is a distributor for TVA power based in Hickman, Kentucky. Our review of Hickman-Fulton found metering issues that could result in (1) inaccurate billing of electric sales by the...

We performed a pre-implementation review of the Enterprise Asset Management (EAM) System, Phase 1 implementation, which provided for supply chain and work management processes. We determined plans and processes in place were adequate after actions were completed to address our concerns, regarding...

We conducted four reviews to determine whether each coal supplier was in compliance with weighing and sampling provisions of the respective contract. We performed tests to verify that shipment weight documentation maintained at each mine supported the amounts used to support invoices to TVA for...