JJ, I live in a high water table area also, my solution was to dig a hole outside my back basement door, put a 5 gallon bucket with a bunch of holes drilled in it, then when the water starts to rise, bucket fills first and my sump pump can get it before it seeps thru basement floor (or in thru the basement door).
Search the Scuppers, a few years ago this issue had been discussed.
Good Luck, a wet basement is no fun.
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