Section 1216 - Installation(a) All main line gas piping installed below ground shall have a minimum earth cover of: (1) twenty-four (24) inches or,(2) eighteen (18) inches when installed in the same trench as other utilities; and covered with clean fill free from stones, boulders, cinderfill, construction debris or other material that may damage the piping.(b) Gas service lines installed below ground shall have a minimum cover of 18 inches.(c) Existing piping installations in compliance with the requirements in effect at the time of its installation may continue in use in accordance with section 1200 of this Chapter.(d) Gas piping shall not be installed underground beneath buildings, concrete slabs or other paved areas of a lot directly abutting the unit, or that portion of the lot reserved for the location of units, or accessory buildings or structures, or building components unless installed in a gastight conduit. (1) The conduit shall be pipe approved for installation underground beneath buildings and not less than schedule 40 pipe. The interior diameter of the conduit shall be not less than one-half ( 1/2) inch larger than the outside diameter of the gas piping.(2) The conduit shall extend to a point not less than twelve (12) inches beyond any area where it is required to be installed, any potential source of ignition or area of confinement, or the outside wall of a building, and the outer ends of the conduit terminating underground shall be sealed. Where one end of the conduit terminates within a building, unit, accessory building or structure, or building component, it shall be readily accessible and the space between the conduit and the gas piping shall be sealed to prevent leakage of gas into the building, unit, accessory building or structure, or building component.(3) The space between the conduit and the service line must be sealed to prevent gas leakage into the building, unit, accessory building or structure, or building component, and, if the conduit is sealed at both ends, a vent line from the annular space must extend to a point where gas would not be a hazard, and extend above grade, terminating in a rain and insect resistant fitting.(e) A carport or awning roof may extend over an individual lot gas piping lateral and outlet riser, provided the completed installation complies with all other requirements of this chapter and the covered area is ventilated to prevent the accumulation of gas.(f) The use of gas piping in parks constructed prior to June 25, 1976, that was originally installed under the area to be occupied by the unit or accessory building or structure, may be continued provided the piping is maintained in a safe operating condition.Cal. Code Regs. Tit. 25, § 1216
1. Amendment filed 7-6-2004; operative 7-6-2004 pursuant to Government Code section 11343.4 (Register 2004, No. 28).
2. Amendment of subsection (a) filed 12-26-2006; operative 1-2-2007 pursuant to Government Code section 11343.4 (Register 2006, No. 52).
3. Amendment filed 1-21-2009; operative 1-21-2009 pursuant to Government Code section 11343.4 (Register 2009, No. 4). Note: Authority cited: Section 18300, Health and Safety Code. Reference: Section 18690, Health and Safety Code.
1. Amendment filed 7-6-2004; operative 7-6-2004 pursuant to Government Code section 11343.4 (Register 2004, No. 28).
2. Amendment of subsection (a) filed 12-26-2006; operative 1-2-2007 pursuant to Government Code section 11343.4 (Register 2006, No. 52).
3. Amendment filed 1-21-2009; operative 1-21-2009 pursuant to Government Code section 11343.4 (Register 2009, No. 4).