Welcome ccwood73,
In addition to Paul's suggestions, here's some more food for thought...
Is there a window above/near the area where you found the water? Could be a leak around the window gasket -OR-
a plugged drain hole in the frame. Water could trickle down the interior wall and/or between the walls to the pass-thru.
Is your fresh water hook-up or your black tank flush near the area where the carpet is wet? Possible check-valve issue?
Where's your water heater and/or water pump located??... if in the vicinity, any indication that either has been leaking?
Terri, the Chevy co-pilot