Recently, I have discovered the carpet in the driver's footwell area has been soaked from time to time. This occurs after days of no rain. It appears to be coming from the corner of the footwell behind the gas pedal. From a few other websites/forums, it sounds like the AC evaporator drain may be plugged? It is not coolant because it is not sticky and it is odorless. The passenger side footwell is dry.

Any thoughts?

Thanks,
Matt