water in the trunk

I have a 2000 Alero and I am finding water in the passenger side (RH side) of the trunk. After removing the upholstery, I realized that the water is coming in from a breather located on the rear quarter when the outside condiditons are wet. Am I the only one?

Recently Subscribed And Had Found Water In My Trunk Also Last Year But Thought It Was The Last Owner That Had Forgot Some Ice In There And Had Melted But Noticed The Same Thing Again Today. No Chance Yet To Pinpoint It But Thanks On The Insight, Will Check First Chance To See If Problem Is The Same

i have a 99 alero, i have not seen this in mine as of yet. we had bad snow storms here in ohio, and i have yet to see water in there. It could be the rubber seal, just a thought.

I don't get it in the trunk but my carpet in the back behind the front seats gets wet.. I have no idea and I think that caused the stain.... I never have anyone ride back there because I have alot of work related crap...