Suspect Dash AC drain clogged, 2002 Ford E450, v10

Thanks for the replies. I will investigate this weekend. So far the water only appears while driving, so that's why i suspected ac drain.

If it's the windshield leaking i was thinking I would notice water while it was parked. Unless it pools up somewhere and then drips into floorboard while vehicle is in motion.

I have noticed the carpet damp on the driver's side also, so leaky windshield /tray may be the culprit here.

I will update what I find out. Thanks!