My Basement Floor is Damp but I Can't Find the Leak: Moisture at Floor Level Explained

https://farmhousekitchenandbath.com/blogs/news/enough-leaks_-how-to-know-when-to-hire-reliable-help-not-just-diy-fixes

Moisture at Floor Level in Basements: What’s Really Going On? As of March 2024, nearly 32% of homeowners reporting basement moisture issues had no obvious leak source, according to recent data from a Santa Cruz regional survey