Company: TVC
Filing Date: 2025-07-29
Form Type: 10-Q
Source: 0001376986-25-000044
Chunk: 32

Company: Tennessee Valley Authority
Filing Date: 2025-07-29
Form: 10-Q
Item: Part II, Item 15
Chunk 32
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 and was included in Accounts payable and accrued liabilities and Other long-term liabilities on the Consolidated Balance Sheets.  Additionally, the potential inclusion of new hazardous substances under CERCLA and RCRA jurisdiction could significantly affect TVA's future liability for remediating historical releases.In August 2015, the Tennessee Department of Environment and Conservation ("TDEC") issued an order that includes an iterative process through which TVA and TDEC will identify and evaluate any CCR contamination risks and, if necessary, respond to such risks.  TVA is also following a similar process pursuant to a consent order.  At June 30, 2025, and September 30, 2024, TVA's estimated liability for costs associated with environmental remediation activities for the sites covered by these orders for which sufficient information is available to develop a cost estimate was approximately $313 million and $215 million, respectively, on a non-discounted basis and was included in Accounts payable and accrued liabilities and Other long-term liabilities on the Consolidated Balance Sheets.  The current estimated time frame for work related to these remediation activities for which TVA has a cost estimate is through 2044.Legal Proceedings From time to time, TVA is party to or otherwise involved in lawsuits, claims, proceedings, investigations, and other legal matters ("Legal Proceedings") that have arisen in the ordinary course of conducting TVA's activities.  There have been no material changes to the Legal Proceedings described in Note 22 — Commitments and Contingencies — Legal Proceedings of the Annual Report, except as described below.Case Involving Johnsonville Aeroderivative Combustion Turbine Project.  On December 22, 2022, the Southern Environmental Law Center filed a lawsuit in the U.S. District Court for the Middle District of Tennessee on behalf of the Sierra Club, alleging that TVA violated the National Environmental Policy Act ("NEPA") in deciding to build a new aeroderivative combustion turbine project at its Johnsonville facility.  Both parties moved for summary judgment, and on September 30, 2024, the court granted TVA's motion for summary judgment and dismissed the lawsuit. The Sierra Club did not file an appeal within 60 days from the date of the decision, so this litigation has now ended.   See Note 22 — Commitments and Contingencies — Legal Proceedings — Case Involving Johnsonville Aeroderivative Combustion Turbine Project in the Annual Report. Case Involving Kingston Gas-Fired Plant.