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|State Police #||13-04640|
|Pollutant||Duration||Point Source||Greenhouse Gas||Criteria Pollutant||Ozone forming chemical||Amount of Release|
|Benzene||3h 30m||tank 8553||NO||NO||YES||3.1 pounds|
|Ethylbenzene||3h 30m||tank 8553||NO||NO||YES||0.1 pounds|
|n-Hexane||3h 30m||tank 8553||NO||NO||NO||12.3 pounds|
|Hydrogen Sulfide||3h 30m||tank 8553||NO||NO||NO||1.3 pounds|
|Xylene||3h 30m||tank 8553||NO||NO||NO||0.2 pounds|
|Toluene||3h 30m||tank 8553||NO||NO||NO||1.9 pounds|
|Volatile Organic Compounds (VOCs)||3h 30m||tank 8553||NO||NO||YES||1,270.8 pounds|
Accident Classified As: Below Reportable Quantity (BRQ)
On October 16, 2013 at 1600 hours, the St. Rose operators discovered that a naphtha tank, Tank 8553, transferring naphtha landed on the roof legs. The radar gauge that was being used to monitor the level was believed to have been reading incorrectly; approximately 3 feet higher than the level should have been reading.
Once the operators discovered that the tank landed on the roof legs, the transfer from Tank 8533 was immediately stopped, and product was allowed to gravitate back into the tank until the roof was floated off the legs. Currently, an investigation is occurring. The results from this investigation will be incorporated, where applicable, to prevent recurrence.