Metering, purging, and maintenance operations for gaseous and liquid petroleum pipelines (including ethylene, propylene, butylene, and butadiene pipelines) are exempt provided that operations are conducted according to the following conditions of this section:
- (1) emissions of volatile organic compounds, except fugitive emissions, are burned in a smokeless flare; or
- (2) total emissions of any air contaminant will not exceed one ton during any metering, purging, or maintenance operation;
- (3) venting of sweet, commercial grade natural gas from pipelines is exempt from paragraphs (1) and (2) of this section. Care must be taken not to vent the gas in an area where an ignition source may exist or where accidental ignition of the venting gas may increase risk of fire at nearby tanks or other facilities.
Source Note:The provisions of this §106.355 adopted to be effective March 14, 1997, 22 TexReg 2439.