All water wells shall be provided with a watertight concrete base poured in a single, continuous operation on thoroughly compacted earth. Except for individual domestic wells, the base shall have a minimum total thickness of fourteen (14) inches of which at least ten inches shall extend above the ground level at the casing. The base of individual domestic wells shall have a minimum total thickness of four inches. The base shall extend horizontally in all directions at least one foot from the outside of the well casing or the wall of the bore hold on gravel packed wells. The concrete base shall be adequately sloped so as to drain water away from the well casing to the edge of the base. The building official may approve a base of a different design where the variation from this pattern of construction would serve a practical purpose or is essential to the integrity or utility of the well and will not lessen well protection. (Prior code § 7804)