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I would follow whatever advice you get from the engineer for determining the exact location of the weeping tile. Given that you have a high water table it would not be wise for us to weigh in with recommendations that may conflict with what your engineer says.
What I would point out though, is that often building on high water tables can cause exactly the type of drainage issues you are talking about, so a possible alternative would be to install a raft slab, which is a slab on grade that distributes the weight evenly over the entire surface of a house, so there is no footing. You can read more about that here –
How to build on problem soils – sites with poor soil quality and high water tables
It’s possible this may save you some effort and cost in terms of working out a drainage solution. Also, what I’m suggesting here isn’t that you choose a slab on grade instead of a basement if your plans are already done, this is just an alternative way to build a basement where the entire slab is poured first, then ICF walls are formed on top. This will actually lead to a far superior slab in terms of energy performance and home durability along with possibly alleviating some of your drainage issues.