Water pooling in carpet on rear drivers side seat

[fincrowe]

I have a 2012 regal with no sunroof. Water only seems to be pooling on the rear seat floor behind the driver side. The front seat carpet is dry, as is the trunk. Ran a hose around the doors and through the drainage holes, no leaks in the gaskets or window seals and the doors are draining just fine. I was looking at the other threads here of others with similar problems, but it seemed like the other threads had issues related to the sunroof, which i dont have, or the ac drainage pipe, which it doesnt seem like it could be if water isnt also leaking into front, unless im misunderstanding something. Does anyone have any ideas or insight?