2005 Chevy Malibu air conditioning leaking

I go this car used and everything was fine for a week then i noticed when i got it to Arizona and started running the air constently it starting leaking from under the dash especially when i make left turns. I took off the protective shield behind the glove box and stuck my head under the dash while my wife drove(as this only leaks while driving) and noticed its coming from the hole on the bottom of what looks like the fan casing for the ac. I dont understand why there is so much condensation but there is alot with 4 hard left turns the passenger floor has 2 inches of water. What can i do to remedy this?