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|State Police #||14-02264|
|Pollutant||Duration||Point Source||Greenhouse Gas||Criteria Pollutant||Ozone forming chemical||Amount of Release|
|Butane||1d 21h 20m||NO||NO||YES||BRQ|
|Propane||1d 21h 20m||NO||NO||YES||BRQ|
|Hydrogen Sulfide||1d 21h 20m||NO||NO||NO||BRQ|
|Benzene||1d 21h 20m||NO||NO||YES||BRQ|
Accident Classified As: Below Reportable Quantity (BRQ)
On May 23, 2014, Motiva's DU-5 unit unexpectedly had the relief valve on their Debutanizer Accumulator, part of the Debutanizer Overhead System, relieve to Shell Chemical's Utilities East Elevated Flare (FE-501). The relief valve lifted as a result of an accumulation of hydrocarbons in the Debutanizer Overhead System.
Unit pressure and feed levels were safely diminished to conform to standards. 6/6/14 report states that no reportable quantities were exceeded.