As used in this chapter, the following terms shall have the meanings indicated:
COLLECTING STRUCTURE — Any house, garage, building or canopy that possesses a roof drainage system utilized to collect precipitation and/or rainwater in a containment vessel.
NONPOTABLE — Water that has not been examined, properly treated and approved as safe for consumption.
RAIN BARREL — A ready-made or self-fabricated aboveground durable fiberglass, polypropylene, resin, recycled steel or lined wooden containment vessel that collects rainwater for nonpotable outdoor use from a rooftop drainage system.