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Valve Regulations - Marin County
ORDINANCE NO. 3322
ORDINANCE OF THE MARIN COUNTY BOARD OF SUPERVISORS
ADDING SECTION 19.04.090 and 19.04.091 OF THE MARIN COUNTY CODE RELATING TO BUILDING REGULATIONS AND SEISMIC SAFETY, ANCHORING OF LIQUID PETROLEUM GAS TANKS AND GAS SHUT-OFF DEVICES.
THE BOARD OF SUPERVISORS OF THE COUNTY OF MARIN DOES HEREBY ORDAIN AS FOLLOWS:
SECTION l. SUMMARY. This ordinance ADDS SECTION 19.04.090 and 19.04.091 to the Marin County Code to require the installation of Excess Flow Gas Shutoff Devices (non-motion sensitive) or Gas Shutoff Devices that are activated by motion. These devices are to be installed on gas services downstream of the meter in new construction and remodeling. Liquid petroleum gas tanks are being required to be anchored. This ordinance will be effective sixty (60) days from the date it is passed. [Gov. Code § 25129].
SECTION ll GAS SHUT-0FF DEVICES. Section 19.04.090 is added to the Marin County Code to read:
19.04.090 GAS SHUTOFF DEVICES.
A) DEFINITIONS. For the purpose of this section certain terms shall be defined as follows:
1) "Downstream of Gas Utility Meter" shall refer to all customer-owned gas piping or in liquid petroleum gas installations shall refer to the gas piping on the structure side of the gas regulator.
2) "Residential Building" shall mean any single family dwelling, duplex, apartment building, condominium building, townhouse building, lodging house, congregate residence, hotel, or motel.
3) "Excess Flow Gas Shutoff Device" shall mean those valves or devices that are not actuated by motion, but are activated by significant gas leaks or overpressure surges, which can occur when pipes rupture inside the structure. The design of the device shall provide a proven method to automatically provide for expedient and safe gas shutoff in an emergency. The design of the device shall provide a capability for ease of consumer or owner resetting in a safe manner. The device shall be certified by the State Architect or the operational and functional design of the device shall meet or exceed the device certified by the Office of the State Architect. The determination of whether the operational and functional design of the device is at least equal to the device certified by the State Architect may be made by one of the following: the Independent Laboratory of the International Approval Services (IAS), Underwriter's Laboratory (UL), International Association of Plumbing and Mechanical Officials (IAPMO), or other recognized listing and testing agent.
4) "Seismic Gas Shutoff Device" shall mean a system consisting of a seismic sensing means and actuating means designed to actuate automatically a companion gas shutoff means installed in a gas piping system in order to shut off the gas downstream of the location of the gas shutoff means in the event of a severe seismic disturbance. The system may consist of separable components or may incorporate all functions in a single body. The device shall be certified by the State Architect, and the operational and functional design of the device shall meet or exceed the device certified by the Office of the State Architect. The determination of whether the operational and functional design of the device is at least equal to the device certified by the State Architect may be mode by one of the following: the independent Laboratory of the International Approval Services (IAS), Underwriters Laboratory (UL), International Association of Plumbing and Mechanical Officials (IAPMO), Office of the State Architect or any other recognized listing and testing agency.
5) "Upstream of Gas Utility Meter" shall refer to all gas piping installed by the utility up to and including the meter and the utility's bypass tee at the connection to the customer owned piping.
6) "Gas Shutoff Device" as used in this Ordinance, shall refer to either a Seismic Gas Shutoff Device or Excess Flow Gas-Shut-Off Device.