Section 2308 Compressed Natural Gas Motor Fuel-Dispensing Facilities
Compression, storage and dispensing equipment shall be located above ground, outdoors.
- Compression, storage or dispensing equipment shall be allowed in buildings of noncombustible construction, as set forth in the International Building Code, that are unenclosed for three-quarters or more of the perimeter.
- Compression, storage and dispensing equipment shall be allowed indoors or in vaults in accordance with Chapter 53.
- Not beneath power lines.
- Twenty-five feet (7620 mm) or more from the nearest rail of any railroad track and 50 feet (15 240 mm) or more from the nearest rail of any railroad main track or any railroad or transit line where power for train propulsion is provided by an outside electrical source, such as third rail or overhead catenary.
- Fifty feet (15 240 mm) or more from the vertical plane below the nearest overhead wire of a trolley bus line.
A vent tube that will divert the gas flow to atmosphere shall be installed on the cylinder prior to commencement of the venting and purging operation. The vent tube shall be constructed of pipe or tubing materials approved for use with CNG in accordance with Chapter 53.
The vent tube shall be capable of dispersing the gas not less than 10 feet (3048 mm) above grade level. The vent tube shall not be provided with a rain cap or other feature that would limit or obstruct the gas flow.