New guy here - possible leak?

I am a brand new 182G owner. I picked it up last weekend from Stoltzfus RV and I've been busy making a few minor mods and getting everything set up.

This afternoon I noticed a funny thing. I opened the rear "garage" and found that there was some water in the bottom of two of the formed recesses. It has rained here over the last week so I'm concerned that there  could be a leak. No warping of any of the side panels. I felt all around and can't track to any source. 

Last weekend during set up I had the rear garage open during some light rain/ misting. I don't think that enough could have gotten in to account for the water, but I'm not entirely sure. 

The weird part is that, assuming it is a leak, you would expect ONE of the recesses to have water. The leak would travel to the lowest point. But two?  It just doesn't make any sense to me.

I've looked around the forum and I can't find any reference to leaks in the garage models. 

Any help or advice is appreciated.