Water on driver floor board

Water on driver side floor board

It's either a clogged AC condensate drain, a leaking heater core or a clogged sunroof drain. Has it been raining? If so and you have a sunroof, check the sunroof drains for clogs. If not, see this post on how to deal with water on passenger carpet https://ricksfreeautorepairadvice.com/water-on-floor-passenger-side/

Check the cowl drain, door seals and windshield seal.