I hear that the dam as originally planned would leak.  Is that report factual?

The story that the proposed Columbia Dam in Tennessee would leak does not appear to originate from any official reports, environmental lawsuits, or major news coverage. Instead, the project's cancellation was due to concerns about environmental protection and cost--not leakage concerns. If the "leak" story exists, it likely emerged informally or as a misinterpretation of broader water management criticisms, rather than from a documented or authoritative source.  It now seems to be spread by ChatGPT which uses a post on the Facebook page from a group opposed to the Dam as a source when asked this question.