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LDEQ Accident Number Accident Date |
Point Source/Release | Cause | Notes |
118671 2009-10-12 | Point Source(s): bottom man-way gasket #MF601A Pollutant(s):Vinyl Chloride - BRQ | Cause of Problem: Seal or Gasket A leak developed from the bottom man-way gasket on storage sphere MF601A. | Perimeter air monitoring by Formosa Plastics showed no detectable levels of Vinyl Chloride. The leak was isolated using nitrogen padding. Bottom gasket was inspected and replaced. Deinventorying the sphere. |
118657 2009-10-11 | Point Source(s): piping Pollutant(s):Vinyl Chloride - 3,001 pounds | Cause of Problem: Process Upset Facility personnel stated that they are in the process of decompressing the pipe. Water spray used to control the vapors. A release occurred when a 3/4" diameter section of piping failed. The most likely mode of failure at this time is believed to be shear induced by vibration/stress fatigue. Vibrational and/or other stresses at the point of failure, exacerbated by the mass of a recently installed and engineered leak mitigation clamp, are thought to be the precipitating factors in this incident. | Actions were taken to identify and isolate the release source and affected equipment. Water spray systems were also activated to suppress, disperse, and control vapors. Actions planned to prevent recurrence include communication of this incident to the third party specialty repair contractor to establish further protocols for use of engineered clamps on future repairs of this type, with an emphasis on minimizing impacts from stress points from this type of configuration. |
116504 2009-07-16 | Point Source(s): Pollutant(s):Ethylene dichloride - BRQ Hydrochloric Acid - BRQ Vinyl Chloride - BRQ | Cause of Problem: Start Up, Shut Down There were two simultaneous releases when a pressure relief valve released on startup. Each release lasted 30 seconds. | To correct the problem the process was adjusted and the steam pressure lowered. Amount of vinyl chloride, ethylene dichloride, and hyrdogen chloride released is unknown. |
116081 2009-06-28 | Point Source(s): 20" manway gasket Pollutant(s):Ethylene dichloride - BRQ Hydrochloric Acid - BRQ Vinyl Chloride - BRQ | Cause of Problem: Seal or Gasket Gasket leak on a 20" manway gasket on the HCL column. | no information given |
115373 2009-05-30 | Point Source(s): Reactor NR301A Pollutant(s):Ethylene dichloride - BRQ | Cause of Problem: Equipment Failure Reactor NR301A developed a pinhole leak on a "hard blind." The plant personnel could not pick up the ethylene dichloride with dredger tubes adjacent to the reactor. | The facility expressed plans to cap and reinforce the "hard blind." |
114272 2009-04-17 | Point Source(s): NE200A Pollutant(s):Ethylene dichloride - BRQ | Cause of Problem: Seal or Gasket Top head gasket on NE200A developed a leak. | Tightened the leak as soon as possible. |
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