After digging up & replacing most of the sewer pipes in garage my basement, I discovered there is a lot of ground water that runs through the trench after a big rain or snow melt. It hasn't came up all the way to the level of the floor, but it's still surprising to me how much there is. Is this normal? Should it be addressed? I have 1 sump pump that it is connected to a interior perimeter French drain. It's 30+yrs old, and somewhat poorly done, so it can't really do much else to help without more cutting & digging. Should I add another sump pump? Now would be the most convenient time to do so, before I get the floor poured.
Using gravity & a simple drain pipe has been suggested, but the slope of my driveway vs depth of trench won't allow using a drain pipe without digging a trench through my whole driveway, which isn't happening at the moment.
Also, not sure if it's of any importance, but everything I've dug up is pretty much pure shale, if that makes any difference.
Any input is appreciated
Thanks,
Mazer

Resolve the problem prior to pouring even if you must dig. Take care of business for the results you want.