All structures, except functionally water-dependent structures, will be set back from the shoreline to the greatest practical extent, but not less than 75 feet. In determining the greatest practical extent, consideration must be given to the depth of the lot, the slope of the land, the potential for soil erosion, the type and amount of vegetation to be removed, the proposed building site elevation in regard to the floodplain, and its proximity to moderate-value and high-value wetlands.