If there is in fact a pre-existing wall then NHDES cannot reject a permit based on poor taste in aesthetics. That's just not within our scope. The new wall face cannot be lakeward of the old wall face. If there was toe protection rip-rap we will permit retaining it as it helps dissipate wave energy. Precast block walls are not water-tight and all walls should incorporate proper back drainage otherwise they risk failure due to the freeze thaw cycle or hydrostatic pressure build up.
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