Chapter 21.24
UNIFORM PLUMBING CODE

Sections:

21.24.010    Uniform Plumbing Code adopted.

21.24.013    Copies on file.

21.24.016    Administration.

21.24.018    Table 610.3 amended.

21.24.020    UPC Section 1101.12.2.2.2 amended.

21.24.010 Uniform Plumbing Code adopted.

The 2021 Edition of the Uniform Plumbing Code, as adopted and amended by the State Building Code Council in Chapter 51-56 WAC, as published by the International Association of Plumbing and Mechanical Officials, is adopted by reference with the following additions, deletions, and exceptions. Provided that Chapter 1, “Administration,” of the Uniform Plumbing Code is not adopted. Provided, that Chapters 12 and 14 of the Uniform Plumbing Code are not adopted. Provided, that those requirements of the Uniform Plumbing Code relating to venting and combustion air of fuel-fired appliances as found in Chapter 5 and those portions of the code addressing building sewers are not adopted. The following appendices of the 2021 Edition of the Uniform Plumbing Code as adopted and amended by the State Building Code Council, as published by the International Association of Plumbing and Mechanical Officials, are also adopted by reference: Appendix A—Recommended Rules for Sizing the Water Supply System; Appendix B—Explanatory Notes on Combination Waste and Vent Systems; Appendix C—Alternate Plumbing Systems, excluding Sections C303.3, C304.0 through C601.9; Appendix I—Installation Standards.

Conflicts. Where a conflict exists between the provisions of Appendix I and the manufacturer’s installation instructions, the conditions of the listing and the manufacturer’s installation instructions shall apply. (Ord. 4848 § 34, 2024; Ord. 4751 § 31, 2021; Ord. 4524 § 69, 2016: Ord. 4410 § 21, 2013: Ord. 4246 § 6 (part), 2010: Ord. 4099 § 7 (part), 2007: Ord. 3946 § 1 (part), 2004)

21.24.013 Copies on file.

The city shall at all times keep on file with the city clerk, for reference by the general public, not less than one copy of the Uniform Plumbing Code. (Ord. 4246 § 6 (part), 2010: Ord. 4208 § 6 (part), 2009)

21.24.016 Administration.

The administrative provisions for the enforcement of the Uniform Plumbing Code are located in Chapter 21.06. (Ord. 4246 § 6 (part), 2010: Ord. 4208 § 6 (part), 2009)

21.24.018 Table 610.3 amended.

Table 610.3 of Chapter 6 is amended to delete “Lawn Sprinkler, each head” from the table. (Ord. 4751 § 32, 2021; Ord. 4246 § 6 (part), 2010)

21.24.020 UPC Section 1101.12.2.2.2 amended.

Section 1101.12.2.2.2 of the UPC is amended to read:

1101.12.2.2.2 Combined System. The secondary roof drains shall connect to the vertical piping of the primary storm drainage conductor downstream of the last horizontal offset below the roof. The primary storm drainage system shall connect to the building storm water that connects to an underground public storm sewer. The combined secondary and primary roof drain systems shall be sized in accordance with Section 1103.0 based on double the rainfall for the local area. A relief drain shall be connected to the vertical drain piping using a wye type fitting piped to daylight on the exterior of the building. The piping shall be sized as required for a secondary drain with a 4" maximum.

(Ord. 4751 § 33, 2021; Ord. 4524 § 70, 2016: Ord. 4410 § 22, 2013: Ord. 4099 § 7 (part), 2007)