§ 7-6-2. AMENDMENTS TO THE 2018 INTERNATIONAL PLUMBING CODE.

(A) Section 101.1 of the 2018 International Plumbing Code is amended to read, in its entirety, as follows:

101.1 Title. These regulations shall be known as the Apache Junction Plumbing Code, hereinafter referred to as “this code.”

(B) Sections 101.2 through 110.4 inclusive are deleted in their entirety. See Vol. I, Chapter 7, Article 7-1, Division of Building Safety and Inspection Administrative Code.

(C) Section 305.4.1 is amended as follows:

305.4.1 Sewer depth. Building sewers shall be not less than 12 inches below grade.

(D) Section 424.1 Approval is amended by adding as follows:

424.1.1 Water Supply. Waterless urinals shall have a water supply, sufficient to supply a water-using urinal, roughed in within 12 inches of a potential valve location. The rough-in can be enclosed behind the finished wall.

(E) Revise Table 604.4 MAXIMUM FLOW RATES AND CONSUMPTION FOR PLUMBING FIXTURES AND FIXTURE FITTINGS as follows:

PLUMBING FIXTURE OR FIXTURE FITTING

MAXIMUM FLOW RATE OR QUANTITY

Lavatory, private	1.5 gpm at 60 psi
Lavatory, public (metering)	0.25 gallon per metering cycle
Lavatory, public (non-metered)	0.5 gpm at 60 psi
Shower head (including hand-held)	2.0 gpm at 80 psi
Sink faucet	2.0 gpm at 60 psi
Urinal	0.5 gallons per flushing cycle
Water Closet	1.28 gallons per flushing cycle

Add footnotes:

c. A 1.6-gallon flush toilet is permitted where no other fixtures are upstream of the drain line connection.

d. The effective flush volume of a dual-flush water closet is defined as the composite, average flush volume of two reduced flushes and one full flush. In public settings, the maximum water use of a dual flush water closet is based solely on its flush operation, not the average of full and reduced volume flushes.

(F) Section 903.1 Roof extension is amended as follows

903.1 Roof extension. Open vent pipes that extend through a roof shall be terminated not less than 6 inches above the roof and not less than 12 inches horizontally from any vertical surface. Where a roof is to be used for assembly occupancy, or as a promenade, observation deck, sunbathing deck or similar purposes, vent pipes shall terminate not less than 9 feet above the deck and be properly supported and protected against damage or blockage.

(G) Section 1106 Size of Conductors, Leaders and Storm Drains is amended as follows:

1106.1 General. The size of the vertical conductors and leaders, building storm drains, building storm sewers, and any horizontal branches of such drains or sewers shall be based on an hourly rainfall rate of three (3) inches per hour.

(H) Section 1106.5 Parapet Wall Scuppers is amended as follows:

Add the following to the end of Section 1106.5: “Roof drainage scuppers and/or overflow scuppers shall not discharge within 3 feet horizontally of the nearest edge of an electrical service or panel, or gas service, unless the discharge is through an enclosed drain.”

(I) Delete Section 1109.

(Am. Ord. 1273, passed 9-5-2006; Am. Ord. 1475, passed 6-19-2019)