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Accident # | 120151 |
State Police # | 094090 |
Accident Date | 2009-12-13 |
Report Date | 2009-12-21 |
Follow-up Date | 2010-02-12 |
Follow-up: | No |
Pollutant | Duration | Point Source | Greenhouse Gas | Criteria Pollutant | Ozone forming chemical | Amount of Release |
Naphthalene | 16 hours 30 minutes | tank T-04-32 | NO | NO | YES | 61.0 pounds |
Benzene | 16 hours 30 minutes | tank T-04-32 | NO | NO | YES | 59.0 pounds |
Ethylbenzene | 16 hours 30 minutes | tank T-04-32 | NO | NO | YES | 104.0 pounds |
n-Hexane | 16 hours 30 minutes | tank T-04-32 | NO | NO | NO | 120.0 pounds |
Cumene | 16 hours 30 minutes | tank T-04-32 | NO | NO | YES | 6.0 pounds |
Toluene | 16 hours 30 minutes | tank T-04-32 | NO | NO | NO | 455.0 pounds |
1,2,4-Trimethylbenzene | 16 hours 30 minutes | tank T-04-32 | NO | NO | YES | 305.0 pounds |
m&p-xylene | 16 hours 30 minutes | tank T-04-32 | NO | NO | NO | 514.0 pounds |
o-Xylene | 16 hours 30 minutes | tank T-04-32 | NO | NO | NO | 217.0 pounds |
Methanol | 16 hours 30 minutes | tank T-04-32 | NO | NO | YES | 1.0 pounds |
Ammonia | 16 hours 30 minutes | tank T-04-32 | NO | NO | NO | 1.0 pounds |
Volatile Organic Compounds (VOCs) | 16 hours 30 minutes | tank T-04-32 | NO | NO | YES | 21,522.0 pounds |
1-methylnaphthalene | 16 hours 30 minutes | tank T-04-32 | NO | NO | NO | 37.0 pounds |
2-methylnaphthalene | 16 hours 30 minutes | tank T-04-32 | NO | NO | NO | 73.0 pounds |
Accident Classified As:
Due to heavy rains falling onto tank T-04-32 (sour water tank, EQT 099), the tank's external floating roof became imbalanced and began to tilt. This allowed hydrocarbon material to seep onto the rooftop.
The event was caused by storms, and was not reasonably preventable.
A vapor suppressing foam blanket was applied to reduce the evaporation of hydrocarbons.
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