A. Where a single-family, two-family, or townhouse residential fire sprinkler system is installed in accordance with the International Residential Code as amended by the city of Gig Harbor, the general facilities charge and customer base charge for one-inch meter size will be allowed to be set at the three-quarter-inch meter general facility charge and customer based charge if the one-inch meter size is required to achieve adequate fire sprinkler flow rates as dictated by the fire sprinkler system design for individual structures and the one-inch meter size is not otherwise required due to installation of an irrigation system. The special service charge for the meter installation shall be set at the rates in GHMC 13.04.070 for the actual size of meter installed. Fire sprinkler systems must be NFPA 13D or IRC P2604 compliant systems.

B. If an owner receiving the benefit of the three-quarter-inch meter rate in subsection A of this section later installs an irrigation system that requires a one-inch or larger meter to operate properly, the owner shall pay the difference between the current three-quarter-inch general facilities charge and the current general facilities charge for the required meter size and the owner shall begin paying the customer base charge for the required meter size. Any required back flow prevention assembly shall also be installed in connection with the irrigation system in accordance with Chapter 13.06 GHMC. (Ord. 1360 § 1, 2017).