Passenger side wet carpet on 2004 Lexus ES330

Pasenger side (front and back) carpet is wet. No coolant....just water. Vehicle has sunroof.....sunroof drain? A/C line?

Asked by for the 2004 Lexus ES330
It seems like Lexus knows of this problem. It comes from one of four drains from sunroof. See this website:
We have the same problem, and Lexus is not taking responsibility for fixing it. It seems like this is a known problem by Lexus as per the service reps in the Manhattan office who have seen this happen.