Hi, I have a basement that is about 50% below grade and is dry except for when it rains. The paint on the walls began bubbling and separating from the concrete. I notices water trickling from a corner and under the stairs and after I scraped loose paint and chipped away old loose concrete I saw cracks. It rained again recently and I watched these cracks and saw the water definitely coming from the cracks. I would like to repair where I chipped away the concrete and then paint the whole basement and put an epoxy flooring down. The cracks are about the width of a dime. I would like advice on what products to use on this project as I have never worked with concrete. Also what kind of paint is suitable for basement walls and I would like to put down an epoxy paint- on floor like what is used in garages. I don't know if that is suitable because once a year we get a bad enough storm to flood the basement 1-3 inches of rain water.

The house is 64 years old and is in an urban area and surrounded on 3 sides by concrete. The ground is level with where the green paint ends in the first picture. Can I seal the cracks with an epoxy or expanding foam in a can?

The two cracks:

http://imgur.com/WL3Lg

http://imgur.com/9rKzV

Condition of the wall:

I don't know what that black stuff is, but I think it's tar from a previous repair. I don't think it's mold.

http://imgur.com/AdjRm

Closeup:

http://imgur.com/PzLJQ

http://imgur.com/8sPQ8