CHAPTER 3
UNIFORM PLUMBING CODE

ARTICLE 1 - CALIFORNIA PLUMBING CODE

(Added by O-3909)

83.1.1 ADOPTION OF CALIFORNIA PLUMBING CODE.

That certain document in book form entitled California Plumbing Code, 2022 Edition, published by the International Association of Plumbing and Mechanical Officials and the California Building Standards Commission, with appendices A, B, C, D, G and I, of which not less than one copy has been and is now filed in the office of the City Clerk of the City of Torrance save and except those portions which are herein amended, deleted or modified by this chapter, is hereby adopted by the City Council as the Plumbing Code of the City of Torrance.

ARTICLE 2 - AMENDMENTS TO UNIFORM PLUMBING CODE

(Amended by O-1903; O-2161; O-2852; O-3004)

83.2.1 FEES. [ADMINISTRATIVE]

(Added by O-3909)

Schedule of fees of Table 104.5 of the California Plumbing Code, 2022 Edition, is deleted in its entirety.

83.2.2 MINIMUM NUMBER OF REQUIRED FIXTURES. [ADMINISTRATIVE]

(Added by O-3909)

Section 422.1 of the California Plumbing Code, 2022 Edition, is hereby amended to read in its entirety as follows:

422.1 Fixture Count. Plumbing fixtures shall be provided for the type of building occupancy and in the minimum number shown in Table 422.1.

Exception: Where circumstances dictate that a different ratio is needed, the adjustment shall be approved by the Building Official.

83.2.3 DRAINAGE SYSTEM MATERIALS. [CLIMATIC]

(Added by O-3909)

Subsection 701.2(2) of the California Plumbing Code, 2022 Edition, is hereby added to read in its entirety as follows:

701.2(2) Drainage Piping. ABS and PVC DWV piping installations above ground shall be limited to residential construction, not more than two (2) stories in height.

83.2.4 BUILDING SEWER MATERIALS. [CLIMATIC]

(Added by O-3909)

Section 715.1 of the California Plumbing Code, 2022 Edition, is hereby amended to read in its entirety as follows:

715.1 Materials. The building sewer, beginning two (2) feet from any building or structure shall be of cast iron, vitrified clay, asbestos cement sewer pipe, schedule 40 ABS, schedule 40 PVC pipe, or PVC SDR35 pipe or as approved by administrative authority.

83.2.5 MATERIAL FOR VENTS. [CLIMATIC]

(Added by O-3909)

Subsection 903.1(3) of the California Plumbing Code, 2022 Edition, is hereby added to read in its entirety as follows:

903.1(3) Materials. ABS or PVC installations are limited to residential construction, not more than two (2) stories in height.

83.2.6 FEES.

(Amended by O-43; O-2761; O-2762; O-2839; O-3017; O-3363)

Fees for the issuance of a plumbing permit shall be set by resolution of the City Council adopted from time to time.

83.2.7 HORIZONTAL WET VENTING.

(Added by O-3909)

Subsection 908.2 of the California Plumbing Code, 2022 Edition, is hereby amended to read in its entirety as follows:

908.2 Horizontal Wet Venting for Bathroom Groups. Bathroom Horizontal Wet Venting is not permitted.

83.2.8 CIRCUIT VENTING.

(Added by O-3909)

Subsection 911.0 of the California Plumbing Code, 2022 Edition, is hereby amended to read in its entirety as follows:

911.0 Circuit Venting. Circuit Venting is not permitted.

83.2.9 RAINWATER SYSTEMS. [CLIMATIC]

(Added by O-3909)

Subsection 1101.4(1) of the California Plumbing Code, 2022 Edition, is hereby added to read in its entirety as follows:

1101.4(1) Materials. ABS and PVC DWV piping installations above ground shall be limited to residential construction, not more than two (2) stories in height.

83.2.10 PRIMARY ROOF DRAINAGE.

(Added by O-3909)

Subsection 1101.12.1 of the California Plumbing Code, 2022 Edition, is hereby amended to read in its entirety as follows:

1101.12.1 Primary Roof Drainage. Roof areas of a building shall be drained by roof drains or gutters. The location and sizing of drains and gutters shall be coordinated with the structural design and pitch of the roof. Roof drains, gutters, vertical conductors or leaders, and horizontal storm drains for primary drainage shall be sized based on rainfall of four (4") inches per hour.

83.2.11 SWIMMING POOLS. [ADMINISTRATIVE]

(Added by O-3909)

Appendix O of the California Plumbing Code, 2022 Edition, is hereby added to read in its entirety as follows:

Appendix O Swimming Pools.

O1.    Swimming pool waste water shall be disposed of as hereinafter set forth in this Section and the type of disposal proposed shall be approved by the Administrative Authority prior to the commencement of any work. A means of disposal of the total contents of the pool (periodic emptying) without surface run-off shall be established to the satisfaction of the Administrative Authority.

O2.    Except as provided in M3, when a public sewer or storm drain of adequate capacity is available for use, swimming pool waste water shall be discharged thereinto and permission shall be obtained in writing from the proper authority to do so. A copy of such permission stating the maximum size of the waste line between the receptor and the sewer, and other specific requirements, shall accompany any applications for a permit made to the Administrative Authority.

O3.    Where space and conditions are such that no hazard, nuisance or unsanitary condition is evidenced, swimming pool waste water may be used for irrigation by surface or subsurface spreading.

O4.    When no other means of waste water disposal is available, a drywell may be installed. Each such drywell shall be constructed in the manner prescribed for cesspools in Appendix H of this Code, and drywells receiving only filter backwash shall have a capacity of at least twice the amount of effluent discharged during one (1) normal backwash operation, but shall in no case have less than a five (5) foot (1.5m) vertical sidewall. When pool emptying or other drains are proposed, the size and leaching capacity of such drywell shall be proportionately increased to the satisfaction of the Administrative Authority. No waste water other than that from swimming pool shall discharge into any such drywell and no waste water from any swimming pool shall discharge into a private sewage disposal system.

O5.    No direct connection shall be made between any storm drain, sewer, drainage system, drywell or subsoil irrigation line and any line connected to a swimming pool.

O6.    Waste water from any filter, scum gutter overflow, pool emptying line or similar apparatus or appurtenance shall discharge into an approved type receptor. The flood level rim of each such receptor shall be at least six (6) inches (152.4mm) above the flood level of the adjacent ground. Each such receptor, when permitted to be connected to any part of a drainage system shall be provided with a three (3) inch (76.2mm) trap.

O7.    Except as provided in M8, the discharge outlet terminal from any pool or filter shall be protected from backflow by an air gap at least six (6) inches (152.4mm) above the flood rim of the receptor.

O8.    No scum gutter drain, overflow drain, backwash discharge drain, or pool emptying line shall enter any receptor below the rim unless the pool piping at its deepest point, the bottom of the filters, and the bottom of the scum gutter drain trough or overflow inlets are at least six (6) inches (152.4mm) above the overflow rim of the receptor.

O9.    A positive point of potable water supply to each swimming pool shall be established and shall be installed as required by Chapter 6 of this Code.

O10.    Plans for other than private swimming pools shall be approved by the Health Officer before any water supply or waste discharge permit is issued.

NOTE: The foregoing applies only to outdoor swimming, bathing, or wading pools. Plans and specifications for all indoor installations shall be submitted to the Administrative Authority for approval prior to the commencement of any work, and all piping, equipment and construction shall be equal to the types prescribed in the Installation Requirements of this Code for indoor work.

83.2.12 Repealed by O-3362.

83.2.13 Repealed by O-3289.