[MisterJoji]

I want to start developing my basement but I have a small issue I'd like resolved beforehand. Along one section of a sill plate (about 8 feet) I have a few areas that are constantly moist and I can't tell why, or how to fix it. It's just a few spots, and they are never sopping wet but always have a small bit of moisture that has been constant ever since we moved in (a little over a year). The 2x4 is pressure treated, however it is buried in the concrete about a 1/2 inch, where as my other sill plate rest directly on top of the concrete. Might this be a source of the problem? Is it possible there isn't proper vapor barrier beneath the sill plate? I should add, I pulled down all the insulation in the rest of the basement and there are no other areas of moisture anywhere along any walls or on the floor. I've added a few pics for clarity. There appears to be quite a bit of efflorescence.