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Marathon Ashland Petroleum (3165), Garyville

Causal Factor: No Information Given

LDEQ Accident Number
Accident Date		 Point Source(s) Notes Amount of Release
No LDEQ Reported

2005-09-16
Cause: Routine check on Marathon facility prior to Hurricane Katrina.

Followup: No

Notes: LDEQ check revealed that the facility "did not appear to have major damage or flooding" "no photos were taken".
No LDEQ Reported

2007-07-31		Coker conveyor belt west of refinery
Cause: Friction from a failed roller-bearing caused fire at the coker conveyor belt

Followup: No

Notes: Claims emission was below RQ.
No LDEQ Reported

2007-07-31		Coker conveyor belt west of refinery
Cause: Friction from a failed roller-bearing caused fire at the coker conveyor belt

Followup: No

Notes: Claims emission was below RQ.
95665

2007-04-26		North Flare
Cause: Fuse was blown causing FCCU to shut down

Followup: No

Notes: Claims emission was below RQ. Hydrocarbon contains 9 pounds of highly reactive hydrocarbons.		Sulfur Dioxide: 40.0 pounds
Hydrocarbon: 15.0 pounds
110989

2008-11-22		Hot Separator Overhead Fin Fan
Cause: Pin-hole leak in Unit 15's hot separator overhead fin fan.

Followup: No

Notes: Fin fan blocked in and leak repaired.		Hydrogen Sulfide: 29.0 pounds
110398

2008-10-27		Refrigerated Butane Storage Tank 250-2 (EIQ 2-88/ EQT 46)
Cause: During the annual emission monitoring of the RBS tank relief valve it was observed that the valve was intermittently releasing to the atmosphere.

Followup: No

Notes: Operations and maintenance personnel started checking the regulators to determine why the relief valve was opening.		Volatile Organic Compounds: 963.0 pounds
108823

2008-09-10		North Flare (EQT162 / EIQ 83-70)
Cause: Hatch on the bank of an Enterprise Propane Tanker was leaking.

Followup: No

Notes: Majority of the product from the leaking tanker was transferred to another tanker		Volatile Organic Compounds (VOCs): 79.0 pounds
Highly Reactive Volatile Organic Compounds (HRVOCs): 0.3 pounds
Nitrogen: 13.0 pounds
106461

2008-06-16		Asphalt Tank 20-1 (EQT086; EIQ 26-74)
Cause: Asphalt Tank developed a small leak.

Followup: No

Notes: Asphalt in tank 20-1 was pumped over to Tank 20-2		Asphalt: 210.0 gallons
No LDEQ Reported

2008-04-09		Knockout pot discharge pump of Dock 2
Cause: Knockout pot discharge pump blew a pressure gauge resulting in release of 5 gal to levee grass

Followup: No

Notes: Grass removed with a weed eater and fresh sod placed over area. Other actions pending investigation.		Light Hydrocarbons: 5.0 gallons
No LDEQ Reported

2009-04-20		dock
Cause: While preparing the dock arm for loading operations, the arm was found full of product. A small amount spilled out of the drip pan that was used to drain the product.

Followup: No

Notes: oil was cleaned up.
112752

2009-02-14		No information given
No information given.
Cause: No RQs were exceeded so no information is given

Followup: Yes

Notes: No RQs were exceeded so no information is given



125726

2010-08-18		Unit 212
Cause: LDEQ Report states that a hydrogen leak occurred at Unit 212.

Followup: No

Notes: No Information Given. LDEQ Report included. No Refinery Letter.
120830

2010-01-19		No Information Given
Cause: Marathon employee noticed gasoline-like odor coming from a parking lot--unclear whether it was from the refinery or a vehicle.

Followup: No

Notes: BRQ. No reportable quantities exceeded. Air monitoring team dispatched, no readings above 1ppm VOC detected.
128662

2011-01-18		Unit 233 Sour Water Tank
Cause: DEQ/ADQ Emergency Occurrence Notification Form states that no root cause is known and is undergoing investigation. However, fuel gas was discovered to be venting through the Sour Water Tank in Unit 233, the sour water stripper.

Followup: No

Notes: A perimeter was established around the tank. Personnel were kept out of the cordoned-off area. When it was determined that a gas stream was lined up to the tank, the line was closed. Future recurrence of the event will be prevented after analyzing the root cause investigation.		Highly Reactive Volatile Organic Compounds (HRVOCs): 2,315.0 pounds
Volatile Organic Compounds (VOCs): 11,844.0 pounds
142789

2012-09-06		Unit 259 North Ground Flare (EQT #282 EIQ #20A-08)
Cause: The U205 coker 1202 drum pressured up causing a corresponding pressure build up in the blow down system. The drum experienced a "refoaming event" where steam is introduced into the drum immediately following a drum swap causing the partial pressure of the unconverted material in the drum to drop. This resulted in over pressuring the fractionator. Pressure relief valves 205-P1511(V1) and 205-P1511(V2) then opened to the North Ground Flare.

Followup: Yes

Notes: Initial report states that the charge rate to the unit was immediately reduced, but that no specific remedial actions were taken or planned at that time. Follow up report states that a TapRoot Investigation was conducted to determine the cause of the incident. This investigation found that the causal factors were: 1) the drum inlet temperature was too low for the cycle and 2) after the drum swap, the valve ramp program pinched the combined overhead valve to 40% and the throttling of this valve contributed to the overpressure of the drums. The investigation recommended: 1) Implement a low drum inlet temperature alarm on both Coke Drums, 2) Develop a drum inlet temperature controller to allow operations to fire the heater based on drum inlet temperature, and 3) Evaluate removing the combined overhead valve ramp down program after a drum swap. Recommendations 1 and 2 were completed by 11/15/2012. Recommendation 3 was not completed.		Sulfur Dioxide: 896.0 pounds
151755

2013-10-21
Cause: During an excavation in the refinery's crude unit on October 21 at 16:44 hours, hydrocarbon impacted soil was discovered adjacent to an underground pump out line. The line was previously used to deinventory the unit for maintenance activities but was decommissioned prior to 2000. Samples were taken and analyzed for various pollutants. Amounts of several hydrocarbons (2-Methylnapthalene, Napthalene, Benzo(a)pyrene, Dibenz(a,h)anthracene and Aromatics>C10-C12) in at least one of the samples exceeded standards put in place Louisiana Risk Evaluation/Corrective Action Program.

Followup: No

Notes: A work plan is currently being developed to determine the area of contamination. Report does not indicate if additional excavation and soil disposal is planned.









151454

2013-10-08		Barge Loading of Coke (EQT#030, EIQ#8-00)
Cause: During the loading of the barge, the coke pile became too large and overflowed the lip of the barge in to the Mississippi River.

Followup: No

Notes: Boom was deployed to prevent the coke from floating downriver. Attempts to recover the petroleum coke were made using a vacuum truck and skimmers. An incident investigation was initiated on 10/08/13 and is currently in progress. There is no reportable quantities for petroleum coke, but the spill violated state environmental regulatory code LAC 33:111.1305.		Coke: 406.4 pounds
147398

2013-03-18		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.

Followup:

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