Home | Search | Emissions | Pollutants | About the Database |
Accident # | 134390 |
State Police # | 11-06256 |
Accident Date | 2011-10-07 |
Report Date | 2011-10-14 |
Follow-up Date | 2011-12-07 |
Follow-up: | Yes |
Pollutant | Duration | Point Source | Greenhouse Gas | Criteria Pollutant | Ozone forming chemical | Amount of Release |
Hydrocarbon | No information given | Tank 71 Floating roof | NO | NO | YES | 21,085.0 pounds |
Benzene | No information given | Tank 71 Floating roof | NO | NO | YES | 191.0 pounds |
Xylene | No information given | Tank 71 Floating roof | NO | NO | NO | 361.0 pounds |
Gasoline | 1h | Tank 403 Cam Lock fiting | NO | NO | YES | 20.0 gallons |
Accident Classified As: Reportable Quantity
Oil was initially discovered on the roof of Tank 71 on August 9, 2011. The emissions were determined to be less than reportable quantities, so no notifications were required. To mitigate leak potential and offsite impacts, the oil was removed daily to prevent accumulation and emissions potential until repair investigation efforts could be completed. On October 7, 2011, at approximately 1040 hours, while cleaning the tank roof to allow for additional inspection, roof scale was dislodged, and a roof leak developed, eventually covering the entire surface area of the tank roof with oil. Foam was applied to the tank roof at 1540 hours, mitigating odors and emissions. Oil was removed from the tank roof October 9, 2011. Though ongoing emissions following removal of the oil are estimated to be below reportable quantities, the tank roof is not floating on the product, thus incident response efforts are still considered in progress, as repairs are completed. At approximately 0915 hours on October 11, 2011 a separate incident at a different tank resulted in hydrocarbon and benzene emissions for approximately 1 hour.
Not preventable. The hole in the Tank 71 roof was unpredicted and unforeseen.
Mitigation efforts to reduce emissions potential commenced promptly, as tank level was reduced, however, the product could not be removed from the tank roof. Foam was applied to the tank roof at 1540 hours,greatly reducing emissions from the event. The tank roof was landed Sunday, October 9, and the oil was able to be removed from the floating roof. Additionally, the tank contents were drained and water was introduced into the tank, however, a thin oil layer remained present as repairs were progressed. Repairs were completed October 14, 2011. Repairs were completed on areas where thickness readings determined necessary on October 14, 2011.
Connect With Us: