I would look for the lowest point where the water shows up and install a sump pump
Another school of thought is to find the highest point the water comes from and install a sump pump (DEEP) trying to catch all the water before it can flow under the slab
Or dig outside of the foundation and install drains to catch the water prior to it even getting close to the foundation walls by looking at the pitch of the land.
Or call a water proofing expert who knows the area and the water tables and they can write up some specifications for a local drainage guy to install.
Decisions, decisions is what makes plumbing interesting huh?