Water Getting on Top of a Slab Foundation

With a slab foundation the concrete floor is where the sill plate of a frame structure would be.  When enough water can pool outside, the water can come directly in to the home and get on top of the slab.  An exterior drainage system must be in place lower than the slab floor seam/sill plate and drained to a lower spot away from the building.  In this case, it runs across the smaller section of a blacktop parking area near a garage.