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Marathon Ashland Petroleum (3165), Garyville

Releases of Oil

LDEQ Accident Number
Accident Date
Point Source(s) Notes Amount of Release

Dock 1
Cause: The oily water sewer sump backed up due to the ballast water line eing out of service for maintenance. Release into Mississippi

Followup: No

Notes: Claims emission was below reportable quantities. Containment boom was in place already under the dock due to previous problem with the ballast water line.
2.0 pounds

abandoned pipe in Tank Farm
Cause: Abandoned pipe that was once used for circulating crude oil.

Followup: No

Notes: Severe weather for 2 days delayed clean up efforts.
70.0 gallons

abandoned pipe in Tank Farm
Cause: Abandoned pipe that was once used for circulating crude oil.

Followup: No

Notes: Severe weather for 2 days delayed clean up efforts.
70.0 gallons

20 inch Ballast Water line from Dock 2
Cause: 20 inch ballast water line underneath main deck platform was leaking from a hole.

Followup: No

Notes: Block valves to the line were closed. Absorbent boom deployed. Air Monitoring Team dispatched to monitor the levee for hydrocarbons.
96.6 gallons

Cause: a leak was found in tank-500-8 de-watering line.

Followup: No

Notes: line was isolated and the site cleaned up.
35.7 pounds
No LDEQ Reported

Cause: Refinery letter states that corrosion on a three inch line under the dock resulted in pinhole leaks. OFFSITE: Material leaked into the Mississippi River.

Followup: No

Notes: An air monitoring team was dispatched, and there were not offsite impacts detected. The line was blocked in immediately. Boom was deployed. The oil spill contractor, EHS, was called out. EHS set more boom and placed absorbent pads within it. A clamp was placed on the line. Line will be replaced and not used until replacement occurs.
55.0 gallons
No LDEQ Reported

dock platform sump
Cause: During a heavy rainfall event on May 2, the electric sump pump on Dock 3A did not function properly. A dock operator found the oil and water mixture from the sump going onto the dock platform and into the Mississippi River. After an incident investigation, the root cause was identified as Equipment Difficulty/Design/Design Specs Need Improvement. The equipment that was improperly designed was the level indicator on the oily water sump - therefore the root cause per LABB's protocol is Instrument Failure.

Followup: Yes

Notes: Once the spill was detected, all transfers on Docks 2, 3A, and 3B were terminated. Approximately 1300 feet of absorbent boom was deployed in the Mississippi River. A spare air pump was brought to the dock to pump the sump and oily water on the dock out. Absorbent pads were utilized to clean up oil that sprayed on, or was leaked on, the dock. The Refinery's Shift Emergency Response Team and Air Monitoring Teams along with ES&H were dispatched to assist with the containment, monitoring the cleanup activities. The next day, two US Coast Guard representatives witnessed the cleanup efforts. The area was monitored for emissions and odors, and the Air Monitoring Data can be found in attachment 1 of the attached PDF. The actions taken to prevent recurrence are to install secondary level indications on the oily water sumps on all docks. This recommendation is to be completed by January 15, 2014. No applicable air quality regulations were exceeded; however, the reportable quantity for oil spilled into a water-body was exceeded.
15.0 gallons

Unit 205 sump drain
Cause: On March 18, 2013 a strong odor was detected within the plant. The odor was caused when 2-3 gallons of Disulfide Oil backed out of a drain and into a sump located at Unit 205.


Notes: The oil was contained to the unit concrete slab. A vacuum truck was called out to lower the Unit 205 sump level.
2.0 gallons