Water Leak
 

Hello i have a 98 es, My rear left carpets on the floor are soaking wet but none of the other ones are. I checked the ac drain line and see water dripping out of that so don't think that's it. I then thought maybe the sunroof drains so i did the pour water into the drain test. 3 of them i saw drain out 1 of the back ones didn't. I am wondering if that could get my carpets wet even though its not dripping from the sunroof and all the pillars and headliner are dry.

Yes, the stopped up sunroof drain can cause the rear floor mats to get wet. My 98 had that happen to the right rear carpet.