Not exactly sure where you are seeing the water or how much. If it is the foot well/fire wall it could be a heater core leak in which case it would be antifreeze. If it is plain water it could condensation from the A/C but it would not be a lot of water. If it is a lot of water I look at the "A" pillar, starting at the top, then windshield gasket, then down to where it meets the cowl. I do not know the car well enough, but at the top of the cowl and the bottom of the fender where it meets the door there are often drain holes that may be clogged.
GL