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Marathon Ashland Petroleum (3165), Garyville
LDEQ Accident Report
| Accident # | 149651 |
| tate Police # | N/A |
| Accident Date | 2013-07-15 |
| Report Date | 2013-07-19 |
| Follow-up Date | 0000-00-00 |
| Follow-up: | No |
Pollutants Released
| Pollutant | Duration | Point Source | Greenhouse Gas | Criteria Pollutant | Ozone forming chemical | Amount of Release |
| Hydrogen Sulfide | 55m | Unit 259 North Ground Flare | NO | NO | NO | 3.6 pounds |
| Nitrogen Oxide | 55m | Unit 259 North Ground Flare | NO | YES | YES | 10.4 pounds |
| Sulfur Dioxide | 55m | Unit 259 North Ground Flare | NO | YES | NO | 333.7 pounds |
| Volatile Organic Compounds (VOCs) | 55m | Unit 259 North Ground Flare | NO | NO | YES | 99.7 pounds |
| Particulate Matter 10 | 55m | Unit 259 North Ground Flare | NO | YES | NO | 1.1 pounds |
| Particulate Matter 2.5 | 55m | Unit 259 North Ground Flare | NO | YES | NO | 1.1 pounds |
| Highly Reactive Volatile Organic Compounds (HRVOCs) | 55m | Unit 259 North Ground Flare | NO | NO | NO | 0.0 pounds |
Accident Classified As: Below Reportable Quantity (BRQ)
Cause of Problem: Process Upset
On July 15, 2013, due to a crude oil switch, a high level occurred in the Unit 222 Sats Gas Plant (SGP) Compressor Suction Drum which caused the Sats Gas PLant Compressor to temporarily shutdown. This resulted in some flaring of the overhead gas to the North Ground Flare for about 55 minutes. The first incident began at 09:05 hours on July 15, 2013, and was secured by 10:00 hours. The second incident began at 19:32 hours on July 15, 2013, and was secured by 19:33 hours.
Discharge Preventable - Under Investigation
The incident report states that incident investigations will be completed to determine the root causes of the two incidents.
Notes/Remedial Actions
For Incident 1, the level in the Sats Gas Plant Compressor Suction Drum was lowered and the Sats Gas Plant Compressor was re-started. For Incident 2, operating personnel made operating changes to the unit to bring it out of upset conditions. These incidents will be investigated and an action plan to prevent recurrence will be generated. Follow up report submitted 10/23/13 states that original report included Greenhouse Gas emissions, however these emissions are not required to be evaluated for reportable quantity because they are not permitted pollutants. The report updates the calculations without greenhouse gases included.
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