Answer
How do I deal with a high water table?
Design for it: raised levels, the right drainage, wet-tolerant planting, water features that suit.
In short
You design for it rather than fight it: raised beds and levels, drainage that works with the ground, planting that copes with wet, and pond or water features that suit it. A high water table is common near rivers and the Cotswold Water Park, and it shapes how we build, not whether we can.
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