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|LDEQ Accident Number
|Point Source(s)||Notes||Amount of Release|
|Depropanizer Feed Line||Cause: This discharge was a result of a corrosion hole on the feed line.|
Notes: The material was captured by using fire water spray. Hazmat #05-04405
|Hydrofluoric Acid: 37.0 pounds|
|Tank 13||Cause: Crude oil was observed leaking from a buried section of piping which fills Tank 13. Estimated to have released between 2-4 barrels.|
Notes: Placid placed a temporary clamp on the leak, left the line exposed for observation, and will be replacing the section of piping in the near future. Vacuum trucks, booms, and absorbent materials were used to clean the area. Contaminated soil removed and placed in roll-off boxes. A "French Drain" with a standpipe has been installed in the affected area to capture any residual oil. At this point, Placid is unsure of the duration of the discharge due to the small size of the hole in the piping underground. In a follow up report on 4/15/2014 it is stated that a report on 4/15/2013 found that no groundwater was encountered by this spill and requested LDEQ to approve of the use of "French drains" for collecting any residual oil that could not be removed. Not all impacted soil was removed as various structures in the area prevented the removal of all soil. The use of "French drains" was approved by LDEQ in a document dated 6/20/2013. As the time of the follow up report (4/15/2014), no additional oil had been encountered in the "French drains" and they had been removed and the site has been returned to its pre-incident condition.
|Crude Oil: 84.0 gallons|
|drain valve||Cause: On May 23, 2014 water and alkylate (a gasoline blending component) was discovered around the parameter of Placid's above ground tank number 16. The tanks floating roof drain valve was found to be leaking. The valve was blocked in to stop the leak and cleanup of approximately four barrels of alkylation and water was conducted.
On May 24, 2014 additional alkylate was discovered and further investigation revealed the tank developed a small leak from a bottom side wall. Air pumps were set up to capture and pump the leaking alkylate to storage. A water heal of approximately 6 inches was pumped into the bottom of tank 16 to prevent product from leaking while the tank was de-inventoried. Area air monitoring was conuducted for LEL, VOCs, and benzene.
On May 25, 2014 at approximately 10:00 hours the floating roof on tank 16 landed. De-inventorying continued until 18:00 hours when low suction was lost. The remaining product and water was removed (stripped) via air pumps.
On May 26, at 9:30 hours the stripping was completed and a third party vendor began a controlled vapor degassing of the tank using a thermal oxidizer.
On May 29, cleaning the floor of any residual sludge began so the tank could be inspected for needed repairs. Additionally, evaluation of any contaminated soil will also be addressed and the tank will remain out of service until repairs are completed.
Report states that while the reason for the leak is still under investigation, it is expected to be corrosion related.|
Notes: Release materials was recovered and returned to storage. Potentially impacted soil will be evaluated upon entry into the tank. A water heal was added to the tank, the tank was de-inventoried and degassed. Product was recovered and returned to storage. Soil to be tested and removed if contaminated. Air pumps captured leaking Alkylate.
|Alkylate: 168.0 gallons|
Process Water: 1,260.0 pounds
Volatile Organic Compounds (VOCs): 1,258.0 pounds
Benzene: 0.0 pounds
Isooctane: 7.2 pounds
Isoprene: 0.4 pounds
n-Hexane: 0.1 pounds
Propylene: 7.7 pounds
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