Where available and approved for use by the authority having jurisdiction, alternate nonpotable onsite water sources complying with Chapter 7 shall be used for outdoor ornamental fountains and other water features constructed or installed on a building site. Where the fountain or water feature is the primary user of the building site's nonpotable water source, a potable makeup water connection is prohibited.
Exception: Outdoor ornamental fountains and water features are allowed to use potable water provided water is recirculated and there is not an automatic refill valve connection to a source of potable water, and provided that either:
- The catch basin or reservoir is no greater than 100 gallons (379 L); or
- Less than 20 square feet (1.86 m2) of water surface area is exposed.
The treatment required to maintain appropriate water quality shall comply with the authority having jurisdiction.