this is a slab foundation correct?? Being a slab foundation is the water from ground water or a pipe that runs in the slab foundation that broke due to the stress crack of the foundation?? If its a pipe, then you have no other choice that I can think of. If its ground water or a high water table that is oozing water, then you could try that flexible latex concrete patch. This is good stuff and will act like concrete and will also give as your foundation will with the season change.