(1)
For the purposes of this Subsection, rainwater shall mean storm water discharged from an above-ground roof surface. (See Note A-7.7.2.1.(1))
(2)
For the purposes of this Subsection, a non- potable rainwater harvesting system shall mean a storage tank, a pump, pipes, fittings and other plumbing appurtenances used to collect and distribute rainwater, but shall not include a rain barrel not connected to a plumbing system.