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LDEQ Accident Number Accident Date |
Point Source/Release | Cause | Notes |
110989 2008-11-22 | Point Source(s): Hot Separator Overhead Fin Fan Pollutant(s):Hydrogen Sulfide - 29 pounds | Cause of Problem: No Information Given Pin-hole leak in Unit 15's hot separator overhead fin fan. | Fin fan blocked in and leak repaired. |
110736 2008-11-10 | Point Source(s): Diesel Pump in Unit 56 Diesel Hydrotreater Pollutant(s):Diesel Fuel - 1 gallons | Cause of Problem: Maintenance/Procedures Strainer removed from pump results in high temperature diesel release by a motor operated valve. Caused a small flash fire. | Steam hose placed on fire to extinguish it immediately. |
110717 2008-11-08 | Point Source(s): 3/4" bleeder valve on the 56-1301 Exchangers in Unit 56 Hydrotreater Pollutant(s):Hydrocarbon - 0 | Cause of Problem: Human Factors A bleeder valve was left open and Light Cycle Oil was released. | Open bleeder valve blocked in and clean up begun immediately. |
110470 2008-10-30 | Point Source(s): 20 inch Ballast Water line from Dock 2 Pollutant(s):Oil - 97 gallons | Cause of Problem: Corrosion 20 inch ballast water line underneath main deck platform was leaking from a hole. | Block valves to the line were closed. Absorbent boom deployed. Air Monitoring Team dispatched to monitor the levee for hydrocarbons. |
110398 2008-10-27 | Point Source(s): Refrigerated Butane Storage Tank 250-2 (EIQ 2-88/ EQT 46) Pollutant(s):Volatile Organic Compounds - 963 pounds | Cause of Problem: No Information Given During the annual emission monitoring of the RBS tank relief valve it was observed that the valve was intermittently releasing to the atmosphere. | Operations and maintenance personnel started checking the regulators to determine why the relief valve was opening. |
110200 2008-10-18 | Point Source(s): Unit 22, Saturates Gas Plant Pollutant(s):No Information Given - BRQ | Cause of Problem: Equipment Failure Electrical fuse blew causing Unit 22 to trip offline. | According to report, no unauthorized discharge occurred. No data for amt of pollutants released. No remedial action planned at time of report. |
108823 2008-09-10 | Point Source(s): North Flare (EQT162 / EIQ 83-70) Pollutant(s):Volatile Organic Compounds (VOCs) - 79 pounds Highly Reactive Volatile Organic Compounds (HRVOCs) - 0 pounds Nitrogen - 13 pounds | Cause of Problem: No Information Given Hatch on the bank of an Enterprise Propane Tanker was leaking. | Majority of the product from the leaking tanker was transferred to another tanker |
108606 2008-08-30 | Point Source(s): No Information Given Pollutant(s):No Information Given - 0 | Cause of Problem: Start Up, Shut Down Shutting down plant, possible releases | DEQ report and verbal notification sans corresponding letter from Marathon. Verbal report only. |
108131 2008-08-18 | Point Source(s): Fuel gas line Pollutant(s):Flammable Gas - 15 pounds | Cause of Problem: Piping or Tubing Leaking fuel gas line near boiler. | DEQ report and verbal report indicate that it is a courtesy notification. Boiler was shut down and piping replaced. |
108044 2008-08-14 | Point Source(s): Piperack at Unit 14 Pollutant(s):Volatile Organic Compounds - 22 pounds | Cause of Problem: Piping or Tubing Inlet flange on a relief valve leaked to the atmosphere. | A relief valve was blocked to isolate leak |
107688 2008-08-01 | Point Source(s): North Flare (EQT162 / EIQ 83-70) ) Pollutant(s):Highly Reactive Volatile Organic Compounds (HRVOCs) - 33 pounds Volatile Organic Compounds (VOCs) - 80 pounds Sulfur Dioxide - 0 pounds Nitrogen - 746 pounds - 0 | Cause of Problem: Equipment Failure FCCU shutdown due to an unknown failure in the unit's Wet Gas Compressor. | Motor associated with the WGC was replaced. |
107208 2008-07-15 | Point Source(s): FCCU Tubing Pollutant(s):Highly Reactive Volatile Organic Compounds (HRVOCs) - 1,440 pounds Volatile Organic Compounds (VOCs) - 4,200 pounds Benzene - 0 Hydrogen Sulfide - 0 Sulfur Dioxide - 0 Nitrogen - 0 Compressed Flammable Gas - 4,200 pounds | Cause of Problem: Piping or Tubing Tubing from a flow orifice plate broke off and released LPG. | Unit start-up was aborted, all fired sources were extinguished and a fire monitor was opened. |
107159 2008-07-13 | Point Source(s): North Flare (EQT162 / EIQ 83-70) Pollutant(s):Sulfur Dioxide - BRQ Volatile Organic Compounds - BRQ | Cause of Problem: Equipment Failure Wiring issue in Wet Gas Compressor causes FCCU shutdown. | Report states that shutdown is permitted twice annually, so all emission are permitted. No info on which pollutants were released or the amounts. |
106589 2008-06-19 | Point Source(s): Product Barge at Dock 3 Pollutant(s):Asphalt - 210 gallons | Cause of Problem: Human Factors Product barge was overfilled with asphalt allowing some of it to spill into the river. | Asphalt that was spilled into the river "sank immediately" but the refinery claims that here was no offsite impact. Loading operations ceased when overfilling occurred. Incident under investigation. |
106461 2008-06-16 | Point Source(s): Asphalt Tank 20-1 (EQT086; EIQ 26-74) Pollutant(s):Asphalt - 210 gallons | Cause of Problem: No Information Given Asphalt Tank developed a small leak. | Asphalt in tank 20-1 was pumped over to Tank 20-2 |
105748 2008-05-20 | Point Source(s): Unit 63 piperack Hydrogen line Pollutant(s):Hydrogen - 16 pounds Volatile Organic Compounds - 21 pounds | Cause of Problem: Piping or Tubing A pinhole leak was discovered in the H2 piping in the Unit 63 pipeway near Unit 19. | Blocked in line and depressurized to atmosphere. |
105380 2008-05-05 | Point Source(s): South Flare (EQT 160 / EIQ 69-74) Pollutant(s):Highly Reactive Volatile Organic Compounds (HRVOCs) - 1 pounds Propane - 167 pounds Ethane - 1 pounds Nitrogen - 34 pounds Carbon Monoxide - 186 pounds | Cause of Problem: Piping or Tubing Pinhole leak discovered in overhead propane line in Unit 22. Line was depressurized to flare. | Blocked in line and depressured to South Flare. Incident under investigation. |
105287 2008-05-01 | Point Source(s): Delayed Coker Unit Heavy Slop Oil Line Pollutant(s):Slop Oil - 30 gallons | Cause of Problem: Piping or Tubing An HSO leak and small fire occurred. | Small fire immediately put out. Air Monitoring Team dispatched to monitor the fence line. Operational moves were made to minimize the leak and block the line for maintenance |
105094 2008-04-23 | Point Source(s): Rubber gasket on the inlet line to the Clow Unit on Dock 3 Pollutant(s):Wastewater - 2 gallons | Cause of Problem: Seal or Gasket Failure of rubber gasket on the inlet line to the Clow Unit on Dock 3. | "Do not use/operate" sign put on toilet at Dock 3. An emergency work order was written to replace the rubber gasket. A scaffold is being built to reach the pipe for the gasket replacement. |
104869 2008-04-18 | Point Source(s): Flange on Asphaltene Pumparound Exchanger, 07-1312 Pollutant(s):Volatile Organic Compounds - 172 pounds | Cause of Problem: Piping or Tubing Change in temperature following flushing caused metal to contract and flange to leak. Small fire started. | Small fire immediately put out. Air Monitoring Team dispatched to monitor the fence line. Maintenance called out to build a scaffold in order to hot bolt the exchanger. Steam lances put on the flanges to heat the metal and seal the leak. |
No LDEQ Number Available 2008-04-09 | Point Source(s): Knockout pot discharge pump of Dock 2 Pollutant(s):Light Hydrocarbons - 5 gallons | Cause of Problem: No Information Given Knockout pot discharge pump blew a pressure gauge resulting in release of 5 gal to levee grass | Grass removed with a weed eater and fresh sod placed over area. Other actions pending investigation. |
104037 2008-03-19 | Point Source(s): Unit 27 Slop Oil Line Pollutant(s):Slop Oil - BRQ | Cause of Problem: Piping or Tubing A slop oil line developed a leak. | Vacuum trucks brought in to extract as much slop oil from the ground as possible. All remaining stained soil was placed in a drum for disposal. Booms were placed in the ditch to contain the spill, which was then vacuumed. Any remaining slop oil was absorbed by the booms. |
104020 2008-03-18 | Point Source(s): Alky Cooling Tower (EIQ 61-74; EQT 0043) Pollutant(s):No Information Given - 0 | Cause of Problem: Piping or Tubing A pinhole leak occurred in the acid cooler exchanger tube which was promptly isolated. | Caustic soda ash and sodium bicarbonate was applied to the cooling tower to neutralize the acid and adjust the pH. |
103950 2008-03-14 | Point Source(s): North Flare (EQT162 / EIQ 83-70) ) Pollutant(s):Sulfur Dioxide - 2,206 pounds - 0 | Cause of Problem: Piping or Tubing A drain valve plugged causing the Fractionator in the Coker Unit to overpressure. This caused the Unit's compressor suction drum to relieve to the North Flare | Operations manually closed the first-stage spillback on the compressor which limited the flaring event. |
103973 2008-03-14 | Point Source(s): North Flare (EQT162 / EIQ 83-70) Pollutant(s): - 120 pounds - 21 pounds - 47 pounds | Cause of Problem: Maintenance/Procedures Shell off-gas compressors had to be shut down for emergency maintenance resulting in a buildup of sweet refinery fuel gas which had to be flared. | Marathon also flared non-olefinic fuel gas to minimize flaring. |
103887 2008-03-12 | Point Source(s): North Flare (EQT162 / EIQ 83-70) Pollutant(s):Volatile Organic Compounds (VOCs) - 32 pounds Highly Reactive Volatile Organic Compounds (HRVOCs) - 5 pounds Nitrogen Oxide - 12 pounds | Cause of Problem: Start Up, Shut Down During start up of the FCC Unit, excess fuel gas was produced and a small amount had to be flared from the Unit 43 Fuel Gas Mix Drum. | Marathon also flared non-olefinic fuel gas to minimize flaring. |
103090 2008-02-15 | Point Source(s): North Flare (EQT162 / EIQ 83-70) Pollutant(s):Sulfur Dioxide - 1,739 pounds Hydrogen Sulfide - BRQ Highly Reactive Volatile Organic Compounds (HRVOCs) - 71 pounds Nitrogen Oxide - 303 pounds Carbon Monoxide - 1,649 pounds Benzene - 0 pounds Volatile Organic Compounds (VOCs) - 488 pounds | Cause of Problem: Power Failure A partial refinery-wide power failure occurred. This caused several units to shutdown and relieve to flare. A small exchanger fire also occurred. | Once maintenance personnel secured the power supply, Operations began bringing units back on line. Follow up report with same DEQ incident number lists different emission amounts. |
102655 2008-01-28 | Point Source(s): North Flare (EQT162 / EIQ 83-70) Pollutant(s):Sulfur Dioxide - 40,782 pounds Hydrogen Sulfide - 109 pounds Highly Reactive Volatile Organic Compounds (HRVOCs) - 116 pounds Nitrogen Oxide - BRQ Carbon Monoxide - 771 pounds | Cause of Problem: Start Up, Shut Down Coker Unit's Wet Gas Compressor shut down due to high level in the suction drum | Pending results of investigation |
102284 2008-01-15 | Point Source(s): Unit 46 - Deethanizer Reboiler Unit 59 - North Flare Unit 66 - RBS Flare 7 h 22 m Pollutant(s):Highly Reactive Volatile Organic Compounds (HRVOCs) - 28 pounds Volatile Organic Compounds (VOCs) - 52 pounds Carbon Monoxide - 6 pounds Nitrogen Oxide - 16 pounds | Cause of Problem: Equipment Failure Shell's off gas compressor tripped causing the fuel gas pressure to increase and relieve to flare | FCCU Reactor Temperature was cut back to reduce off-gas production |
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