Chapter 15.24 — Sacramento Zoning Code

AMENDMENTS TO THE CALIFORNIA PLUMBING CODE*

Sections:

15.24.010 Amendments to the CPC.

15.24.020 Catchlines of sections.
15.24.030 Local amendments to the CPC.
Prior code history: Ord. 2008-056; prior code §§ 9.04.200-9.04.210 and 9.04.223-9.04.225.

15.24.010 Amendments to the CPC.¶

The CPC is amended as set forth in this chapter. (Ord. 2025-0031 § 9; Ord. 2022-0026 § 9; Ord. 2016-0052 § 8; Ord. 2014-0001 § 9; Ord. 2011-026 § 5)

15.24.020 Catchlines of sections.¶

For the purposes of this chapter, and notwithstanding the provisions of section 1.04.060, the catchlines (or titles) of sections in this chapter shall be deemed to be part of such sections. (Ord. 2025-0031 § 9; Ord. 2022-0026 § 9; Ord. 2016-0052 § 8; Ord. 2014-0001 § 9; Ord. 2011-026 § 5)

15.24.030 Local amendments to the CPC.¶

A. CPC section 312.4 is amended to read as follows:

Corrosion, Erosion, and Mechanical Damage. Each system of buried ferrous piping used for either potable water or gas supply shall have a protective coating of an approved type, machine applied and conforming to recognized standards. Field wrapping shall provide equivalent protection and is restricted to those short sections and fittings necessarily stripped for threading.

All buried ferrous piping shall be installed with cathodic protection. Private gas mains and laterals coming within the scope of the Federal Regulations for Pipeline Safety shall be designed and the installation supervised for compliance by a person qualified by experience and training in pipeline corrosion control methods. Supply piping for buildings shall be installed according to the same standards or by the use of Table 312.4 of this code.

When Table 312.4 is used, the piping system shall be installed according to the following requirements:

Galvanic anodes for cathodic protection of ferrous piping shall be buried not less than three feet below grade, and below the bottom of the pipe to be protected. They shall be not less than four feet horizontally from any buried metallic pipe. Before backfilling, the anode shall be flooded with a minimum of five gallons of water.

Connecting of the anode to the pipe, when made less than six inches above grade, shall be with a thermite weld. Connections six inches or more above grade may be made by the use of an approved electrical service grounding clamp.

Water supply piping shall be isolated at the connection of the utility or private tap from the water main and at each building foundation line adjacent to the full way shut-off valve.
Gas supply piping shall be isolated adjacent to each building foundation line or at the appliance when located outside the building and from the serving gas supplier's service equipment.
Approved isolation fittings shall be located a minimum of six inches above grade, except at the water tap.
Any piping laid in the same trench with pipe requiring cathodic protection shall be separated laterally a minimum of 12 inches, and piping installed diagonally above pipe requiring cathodic protection shall be separated vertically a minimum of six inches. All separations shall be maintained with clean earth in accordance with CPC section 314.

All piping regulated by this code and subject to undue corrosion, erosion or mechanical damage shall be protected in an approved manner.

B. Table 312.4 is added to Chapter 3 of the CPC to read as follows:

Table 312.4. Anode Selection Chart

Allowable Length of Coated and Wrapped Buried Ferrous	Allowable Length of Coated and Wrapped Buried Ferrous	Gas or Water Pipe
Pipe Size
Anod e Size	1/2 "	3/4 " & 1"	1-1/4" & 1-1/2"	2"	3"	4"
1 lb. anod e	50 ft	-	-	-	-	-
3 lb. anod e	150 ft	100 ft	50 ft	50 ft	-	-
9 lb. anod e	500 ft	200 ft	200 ft	150 ft	10 0 ft	100 ft
17 lb. anod e	-	500 ft	350 ft	300 ft	25 0 ft	150 ft
32 lb. anod e	-	-	500 ft	500 ft	45 0 ft	350 ft

C. Subsection 1101.12.3 is added to CPC section 1101.12 to read as follows:

For the purpose of sizing roof drains, conductors, leaders, gutters, and storm sewers, the rainfall rate used for calculations shall be 3 inches per hour.

(Ord. 2025-0031 § 9; Ord. 2022-0031 § 2; Ord. 2022-0026 § 9; Ord. 2016-0052 § 8; Ord. 2014-0001 § 9; Ord. 2011-026 § 5)