Incident Report

Subject:                     Floating Roof Tank Rainwater Drain Integrity

Date of Email report:   Thu 14/07/2011

Report Detail:

An incident involving external floating roof tanks highlight the risks associated with open and closed roof drain valves.

Incident
A gas detector alerted operations to a possible hydrocarbon leak near the tankfarm area. Shift personnel immediately investigated the area and found gasoline/condensate escaping from the roof drain outlet at one of the double deck floating roof tanks. The gas cloud that formed had triggered a nearby gas detector. The release led to excess emissions and a difficult cleanup but no injuries. 

Additional Documentation:

006 PSF Safety Alert-Floating Roof Tank Rainwater Drain Integrity