Note: Ord. 2041, 11/3/2025 repealed Ord. 1033; Ord. 1128; Ord. 1208; Ord. 1285; Ord. 1538; Ord. 1613; Ord. 1710; Ord. 1813; Ord. 1856; Ord. 1889; Ord. 1933; Ord. 1969; and Ord. 2010.
The rules, regulations and standards printed in one volume and published by the International Association of Plumbing and Mechanical Officials (IAPMO), under the title "2024 Uniform Plumbing Code," and adopted as the "2025 California Plumbing Code," including the Appendices A, D, H, I and State of California amendments thereto, hereinafter called "plumbing code," is adopted as and for the rules, regulations and standards within this city as to all matters therein contained, except as otherwise provided in this chapter. The appendices specified herein shall be enforceable to the same extent as if contained in the body of the plumbing code.
(Ord. 2041, 11/3/2025)
Section 310.16 of the 2025 California Plumbing Code is added to read as follows:
310.16 Exterior pipes. No plumbing drain vent pipe nor water, soil, waste, or gas pipe shall be installed on, or attached to, the outside face of an exterior wall of a residential building without the prior written permission of the building official. Such installation shall be enclosed in such a way as to be obscured from view.
(Ord. 2041, 11/3/2025)
Section 507.5 of the 2025 California Plumbing Code is amended to read as follows:
507.5 Water heater safety pans. Each water heater located in an attic, furred space, living area or other location where leakage would result in damage to the building or its contents shall have a safety pan with drain. Safety pans shall be metal and be nominal two inches in diameter larger than the water heater, with a minimum depth of two inches. The drain pipe shall be three-quarter inch trade size minimum; shall terminate outside the building foundation or, where this is not practical or possible, at another location approved by the building inspector; and shall have a continuous minimum slope throughout its length of one-quarter inch, per foot away from the water heater.
(Ord. 2041, 11/3/2025)
Section 606.3.1 of the 2025 California Plumbing Code is added to read as follows:
606.3.1 Water supply shutoff valves. A gate shutoff valve shall be installed on each water supply pipe at an accessible point where such supply enters a building. In multi-unit residential buildings, a gate shutoff valve shall be installed on each water supply pipe at an accessible point where such supply enters each apartment or dwelling unit; or, where an apartment or dwelling unit is supplied by a vertical riser, a separate accessible shutoff valve may be provided at each plumbing fixture in the unit in lieu of the shutoff valve on the main supply to the unit.
(Ord. 2041, 11/3/2025)
Section 610.8.1 of the 2025 California Plumbing Code is added to read as follows:
610.8.1 Water services over two inches. Design details, methods and materials for construction of water services over 2 inches in diameter shall conform with the specifications for the construction of such work as compiled by the city engineer. These specifications may be changed from time to time at the option of the city engineer, but such changes shall in no way affect the validity of the regulations or requirements contained therein or the regulations and requirements of this code.
(Ord. 2041, 11/3/2025)
Section 710.1 of the 2025 California Plumbing Code is amended to read as follows:
710.1 Backflow Protection.
1. 
Drainage piping serving fixture(s) which have flood level rim(s) less than twelve inches (12") above the elevation of the next upstream manhole and/or flushing inlet cover at the public sewer system serving such drainage piping shall be protected from backflow of sewage as follows:
a. 
In new buildings and in buildings modified to the extent described in Burlingame Municipal Code Section 18.08.060, these fixtures shall discharge by means of a sewage ejector or pump in accordance with Section 710.3.
b. 
In existing buildings, protection from backflow shall be by means of a backwater valve approved by the building official supplemented by an approved sewer relief valve installed with its outlet at least six inches (6") below the flood level rim of the lowest installed drainage unit fixture. Fixtures above that elevation shall not discharge through the backwater valve without prior written approval of the building official. As an alternative, the system may be protected by installation of an approved sewage ejector or pump.
c. 
Cleanouts for drains that pass through a backwater valve shall be clearly identified with a permanent label stating "Backwater Valve Downstream."
(Ord. 2041, 11/3/2025)
Section 719.7 of the 2025 California Plumbing Code is amended by adding a second paragraph to read as follows:
719.7 Building sewer cleanout. When a building sewer is located under a street, alley or easement, there shall be provided a cleanout, installed flush with the sidewalk level next to curb; or, if no curb or sidewalk exist, then the cleanout must be located outside of the lot line. The cleanout riser shall be of materials specified by the city engineer, shall be the same size as the drain it serves, shall be connected to the building drain by a wye, shall be brought up to the level of the ground, and shall be terminated at the top with a cleanout fitting as specified by the city engineer. If the riser terminates at concrete sidewalk a cast iron sidewalk box with loose cover fitting with brass screws shall be installed. The minimum size for a cleanout riser shall be four inch trade size pipe.
(Ord. 2041, 11/3/2025)
Section 807.4 of the 2025 California Plumbing Code is added to read as follows:
807.4 Condensate wastewater disposal. Condensate from air cooling coils and comfort cooling equipment not intended to be used for the storage or handling of food or drink shall be collected and discharged to a storm sewer or other point of disposal approved by the building official.
Termination of such drains shall be made by an air break. Condensate drain lines in sizes of one and one-quarter inch and larger shall be assembled using approved drainage pipe and fittings.
Condensate waste water shall not drain over or upon a sidewalk, pedestrian ramp or the like, or a public way.
(Ord. 2041, 11/3/2025)
Section 812.2 of the 2025 California Plumbing Code is added to read as follows:
812.2 Disposal of rainwater drainage. Rainwater from roof or other approved areas exposed to rainwater may be drained into the storm drainage system, but shall not drain into any sewer intended for sanitary sewage.
(Ord. 2041, 11/3/2025)
Section 812.3 of the 2025 California Plumbing Code is added to read as follows:
812.3 Rainwater drainage to paved gutter. Rainwater from roofs and other approved areas exposed to rainwater may drain into a public street gutter, provided that such gutter is paved and runs to a catch basin connected to a public storm drain, and provided further that such drainage has the approval of the city engineer or other public authority having jurisdiction over public streets or public storm drains.
(Ord. 2041, 11/3/2025)
Section 812.4 of the 2025 California Plumbing Code is added to read as follows:
812.4 Rainwater drainage across public sidewalk prohibited. No rainwater from roofs, or other rainwater drainage of premises, shall discharge upon a public sidewalk. When it is desired to conduct rainwater from a building or premises to a public street gutter, the outside underground drainage piping shall be vitrified clay pipe, ABS, PVC, galvanized wrought iron pipe, galvanized steel pipe, approved concrete pipe, asbestos cement sewer pipe, cast iron pipe or other materials approved by the building official. When clay pipe, ABS, PVC, asbestos cement sewer pipe or approved concrete pipe is used, such pipe shall be a minimum of two feet horizontally from the building and one foot below the official grade. Water leaders connected to such background drainage pipe which are on the outside of the building wall that abuts on a public thoroughfare, shall be constructed of galvanized wrought iron pipe, galvanized steel pipe, or cast iron pipe for a distance of not less than five feet vertically above the Official grade. See Section 18.08.095 for exception for such drainage in R-1 districts.
(Ord. 2041, 11/3/2025)
Section 812.5 of the 2025 California Plumbing Code is added to read as follows:
812.5 Elimination of nonconforming rainwater drainage required. Every existing system that allows the drainage of rainwater into a sanitary sewer in violation of the provisions of this chapter shall be altered or terminated or replaced so as to conform to the provisions of this chapter.
(Ord. 2041, 11/3/2025)