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|LDEQ Accident Number
|Point Source(s)||Notes||Amount of Release|
|Storage tank||Cause: The cause of the release was pressure in the feed tanks at the Waste water improvement unit.|
Notes: A storage tank vented for 16 m. The cause of the release was pressure in the feed tanks at the waste water improvement (WILA) unit exceeded the vacuum vent setting for 14 m. The light material entered the flare knock out drum at the Olefins unit through a safety valve bypass which was left open inadvertently during the start up after Gustav. Manual error is the root cause. LDEQ said they would take this up at the next inspection. Exxon's written report was received on 10/6/08.
|Tanks 8 and 9||Cause: The pressure feed tanks at the Waste water improvement unit exceeded vacuum setting and released hydrocarbon vapors to relieve the pressure. The cause is the material from the olefins unit flare knock out drum.|
Notes: It was unexpected that this material will impact the WWIU.