As used in this chapter, the following terms shall have the meanings indicated:
A permanent structure intended for group bathing, provided with a recirculating and/or controlled water supply and located either within a dwelling unit or out of doors.
A structure intended for bathing, swimming or diving purposes, made of impervious material and provided with a recirculating and/or controlled water supply. For purposes of this chapter, the following shall be deemed a "swimming pool":
WADING POOLAny pool having a water depth of twenty-four (24) inches or less.
ABOVEGROUND POOLAny pool having a water depth greater than twenty-four (24) inches, the base of which is located above finished grade level,
IN-GROUND POOLA pool having any water depth, which is located totally or partially below finished grade level.