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CITGO Petroleum (1250), Lake Charles
Causal Factor: Weather
| LDEQ Accident Number Accident Date |
Point Source(s) | Notes | Amount of Release |
| 82579 2005-09-25 | C-Dock Bulkhead at B-Dock | Cause: Sheen observed (hydrocarbon release) from B-Dock; potentially released when area was inundated of the area during Hurricane Rita. Release of crude oil from C-Dock; during Hurricane Rita a nipple located on a crude oil loading arm was broken off. Followup: Notes: Area was boomed off and crude oil material recovered. Offsite impact. Miller Environmental responded for the clean up. Crude oil approximately one foot thick. Tank either ovrflowed or line valve breach. Had small natural gas leak from inlet piping blowing. | Crude Oil: 1,699.0 pounds Hydrocarbon: 0.1 pounds |
| 82391 2005-09-22 | FLARE | Cause: Flaring of hydrocarbons for shut down for Hurricane Rita. Followup: Notes: No information given | |
| 82492 2005-09-22 | Unicracker; C-FCCU Unicracker; C-FCCU; B-5 FLARE; B6 FLARE; B7 FLARE Multiple Units B-5 FLARE; B6 FLARE; B7 FLARE CLAW sewer B 104 FLARE A Topper; B Topper; Coker II; C FCCU Coker I, C Sulfur Recovery Unit; B Sour Water Stripper Tank 504 E Sulfur Recovery A Sulfur recovery Unit; B Sour Water Stripper; Unicracker Unicracker Unicracker; D Sulfur Recovery Unit | Cause: Shut down and start up from Hurrican Rita Followup: Yes Notes: Summary of releases over 31 days | Sulfur Dioxide: 1,161.0 pounds Compressed Flammable Gas: 5,323.0 pounds Compressed Flammable Gas: 12,759.0 pounds Asbestos: 444,070.0 pounds Compressed Flammable Gas: 12,758.0 pounds Compressed Flammable Gas: 12,758.0 pounds Compressed Flammable Gas: 12,758.0 pounds Slop Oil: 5,391.0 pounds Compressed Flammable Gas: 12,758.0 pounds Compressed Flammable Gas: 3,207.0 pounds Sulfur Dioxide: 23,441.0 pounds Sulfur Dioxide: 2,689.0 pounds Hydrogen Sulfide: 714.0 pounds Sulfur Dioxide: 1,007.0 pounds Sulfur Dioxide: 8,710.0 pounds Sulfur Dioxide: 579.0 pounds Sulfur Dioxide: 1,015.0 pounds Sulfur Dioxide: 6,300.0 pounds |
| 82331 2005-09-19 | None Reported | Cause: Start up of B Sour Water Stripper. Followup: Yes Notes: The start up of B Sour water Stripper will be a part of facility wide start up after Hurricane Rita. The unit was shut down on September 19 to clean the feed/effluent exchanges, however, the unit was not restarted due to facility wide shutdown in preparation for Hurricane Rita. All releases associated with shut down and start up after the hurricane will be calculated under one incident number 05-05764 | |
| 81543 2005-08-21 | B-1 FLARE | Cause: Rainstorms caused the pilots of the B1 flare to go out. Followup: No Notes: Combination of swirling winds and heavy rain with low flow of gas. Has been re-lit by the Safety Department. Initial report states offsite impact, while notification report states no offsite impact. Order made for the Operations to call the Shift Superintendent as soon as the flare goes out; will facilitate the Shift Supervisor's call to the Shift Safety Person on duty to light the flare with the flare gun, which should help reduce the time between flare pilot outage and relighting. | Flammable Gas: 1,334.0 pounds |
| 83710 2005-08-16 | B-8 FLARE | Cause: heavy rain and high winds blew out the pilot Followup: No Notes: Combination of swirling winds and heavy rain with low flow of gas. Pilot gas flow rate has been increased. No offsite impact. | Flammable Gas: 3,172.0 pounds |
| 78063 2005-04-06 | B4 Flare Girbotol Unit | Cause: high winds caused loss of B4 Flare pilot Followup: No Notes: Claims emission was below RQ | |
| 76889 2005-02-13 | No Information | Cause: weather caused pilot light outage on the B4 Girbotol flare Followup: No Information Provided Notes: 7 day follow up written response was not submitted DEQ - went for investigation | |
| 91671 2006-10-27 | PFU Flare CB701 | Cause: flare pilot was lost during heavy rain storm Followup: No Notes: Steps being reviewed are: a) remocal of materials from steam trenches to prevent water on steam piping b) installation of a small air compressor for use in relighting the flare pilot | Flammable Gas: 5,059.0 pounds |
| 88679 2006-06-19 | B-12 flare, wastewater treatment plant | Cause: Refinery experienced a heavy rainfall event, greater than 8 inches;of rain in 36 hours. 250 psig steam lines became submerged in water and as a result the steam condensed and caused a drop in pressure, eventually stopping the flow of rich amine throughthe Central Amine unit. This resulted in the loss of acid gas production. The SROs eventually shutdown due to lack of feed. Off gas went to the B-12 flare. Rainfall runoff exceeded the available capacity of the wastewater treatment system storm water tanks and the treatment system. When the capacity of the storm water tanks was exceeded, slop oil and wastewater overflowed from the tanks into the protective dike area surrounding the tanks allowing evaporation of benzene, etc. Followup: Yes Notes: The lack of amine treatment of refinery fuel gas caused the hydrogen sulfide content in fuel gas to exceed permit limits Hydrogen Sulfide amounts exceeded not reportedÉTo increase the pressure of the steam system and to reuce hydrogen sulfide generation, emergency steam and hydrogen sulfide shedding steps were initiated. Several units feed rates were reduced to minimum and some were shut down. As soon as acid gas was available steps were taken to restart the SRUs. For each restart operations pnnel followed standard operations procedures for startup and shutdown. When the storm water tanks began to overflow, steps were taken to remove slop oil from the tank dike using vacuum dikes. The feed rte of wastewater from the wastewater tanks to | Sulfur Dioxide: 203,217.0 pounds Benzene: 7,863.0 pounds Toluene: 51,003.0 pounds Xylene: 91,154.0 pounds Ethylbenzene: 15,408.0 pounds Oil: 2,226,000.0 gallons |
| 95918 2009-05-06 | B-11 Flare | Cause: pilot light went out due to wind Followup: No Notes: this incident linked with incident Number 95930 of 05/05/2007 | |
| 99280 2007-09-07 | Outfall 006 | Cause: see notes Followup: No Notes: A pinhole leak was discovered on a 3 inch slop oil line upstream of the 006 slide valve structure. Leak was isolated and repaired. Slop oil spilled on soil, heavy rains produced a slight sheen at 006. Booms, absorbent pads and vacuum truck were deployedto contain the sheen. >30 gallons emitted according to Verbal Report. DEQ report attached to CITGO letter indicates that 190 lbs were release | Slop Oil: 190.0 pounds |
| 97741 2007-07-10 | Wastewater Treatment Plant | Cause: heavy rainfall Followup: No Notes: Starting on 07/04/07 wastewater treatment plant began receiving storm water from all areas of the plant. Storm tank diversion valves were opened allowing storm water to flow into the concrete lined tank dikes. | |
| 96183 2007-05-14 | Unit Stack Sulfur Dioxide Analyzer | Cause: heavy rainfall with extensive lightning; analyzer disabled by lightning strike Followup: No Notes: Letter mentions sulfur dioxide and hydrogen sulfide but does not cite emission of Sulfur Trioxide, which is listed in the attached verabl repor | |
| 108894 2008-10-02 | 004 Outfall North Flare | Cause: Followup: No Notes: See incident 08-06535 | Under Investigation Sulfur Dioxide: 244.0 pounds |
| 109022 2008-09-13 | B-11 Flare, B-12 Flare, Sulften Stack, C-Cat Scrubber, | Cause: Hurricane Ike Followup: Yes Notes: Power Failure causes release of huge amount of S02. Loss of Pecan Grove substation caused the loss of power to equipment in the SRU, Central Amine, cid Plant, Sour Water Stripper, Unicracker, Wastewater Treating and Coker II Units. Combustion efficiencyof 99% was used to calculate S02 emissions - is that an appropriate figure? Follow-up report on 10/27/2008 discusses emissions from B-11 Flare only REMEDIAL ACTIONS - perform feasability study of reliable power supply for acid block ; Install nsary equipment to start up JC-201 Compressor with less than RQ Flare Emissio | Sulfur Dioxide: 82,889.0 pounds Hydrogen Sulfide: 798.0 pounds |
| 107212 2008-07-15 | Sulften Vent EQT297 ; Tail Gas II Stack EQT 298 | Cause: Followup: No Notes: Some pollutants released onto Highway, which was sealed off during clean up. 5.5 inches of rain in a 3 hour period led to depressurization in process units and various instrumentation problems; event met or approached the 25-year 3-hour intensity standard; Install three additional sumps, pumps, and associated piping in the steam trench to alleviate flooding during heavy ra | Hydrogen Sulfide: 133.0 pounds Benzene: 93.0 pounds Sulfur Dioxide: 1,000.0 pounds |
| 122095 2010-03-12 | Sheet Pile Wall | Cause: DEQ report states, "approximately 3-5 gallons of emulsified slop oil washed through the lifting holes in the sheet pilings that separates the lagoon from the ship channel. According to Diana LeBlanc (Environmental Engineer) with Citgo, the oil was released from the bottom of the lagoon when Morrison surveyors were profiling the bottom of the lagoon."
High winds caused oil to be driven from the surface of the Indian Marais Lagoon, to the sheet pile wall where it escaped into the Calcasieu River. Followup: No Notes: Report states that "Citgo immediately deployed hard and absorbent booms to capture the oil on both sides of the sheet pilings. The water level was pumped down by Citgo and sent to the wastewater treatment area to prevent any additional spillage from the lagoon. ES&H was contracted by Citgo to assist in boom deployment and cleanup. Ms. LeBlanc said that written notification would be forthcoming when the investigation was complete." | Slop Oil: 3.0 gallons |
| 130780 2011-04-26 | Acid Plant SRF Unit (B-5) Feed Prep (B-101) HP Boilers (8-1C, 8-1, 8-1A, B-2a, B-3c, 8-5A) CVEP unit (8101A, 81018, 8102A, 81028) Vacuum (8-2A, 8-201) Unicracker unit (B-1,2,3,4,5) A Reformer (B-101) A Reformer (B 102-106) B Reformer (B 401-406) ALCOH unit (B 101-103) BOH unit ( B 601,602) Sulfolane unit (B-201, 202) ISOM unit (B-801) Coker 2 unit (B-201, 202) A Cat unit (B-2, 6) B Cat unit (B-2, 6) C Cat unit (B-2, 6) Ultra Low unit (B-101, 102) A-CGH unit (B 101-103) B-CGH (B 201- 203) BLCOH unit (B-101, 3) A Topper unit (B-4) B Topper unit (B-104) C Topper unit (B-1C, 2C) Coker 1 unit | Cause: Due to a thunderstorm, a loss of electrical power from the Pecan Grove substation caused the shutdown of the Sulfur Recovery Unit (SRU), Central Amine, Acid Plant, Sour Water Stripper, Unicracker, Wastewater Treating and Coker II units.
An incident investigation was initiated, scheduled to be completed June 10, 2011. Followup: Yes Notes: According to the second follow-up Refinery Letter, CITGO: 1) Contacted Entergy for power restoration 2) reduced refinery/unit charge rates Area was monitored and all parameters measured zero. Investigation to be completed by 6/10/2011. Report of regarding this investigation is not available. | Sulfur Dioxide: 159.0 pounds Sulfur Dioxide: 768.0 pounds Sulfur Dioxide: 3,169.0 pounds Sulfur Dioxide: 63,701.0 pounds Sulfur Dioxide: 7,921.0 pounds Sulfur Dioxide: 5,055.0 pounds Sulfur Dioxide: 303.0 pounds Sulfur Dioxide: 474.0 pounds Sulfur Dioxide: 4,999.0 pounds Sulfur Dioxide: 18,174.0 pounds Sulfur Dioxide: 4,037.0 pounds Sulfur Dioxide: 2,176.0 pounds Sulfur Dioxide: 5,445.0 pounds Sulfur Dioxide: 294.0 pounds Sulfur Dioxide: 571.0 pounds Sulfur Dioxide: 307.0 pounds Sulfur Dioxide: 824.0 pounds Sulfur Dioxide: 441.0 pounds Sulfur Dioxide: 2,191.0 pounds Sulfur Dioxide: 1,862.0 pounds Sulfur Dioxide: 2,073.0 pounds Sulfur Dioxide: 689.0 pounds Sulfur Dioxide: 9,080.0 pounds Sulfur Dioxide: 11,091.0 pounds Sulfur Dioxide: 3,922.0 pounds Sulfur Dioxide: 6,762.0 pounds |
| 151352 2013-09-21 | Wastewater treatment unit | Cause: This incident involved a Benzene release associated with wastewater diversion CITGO's wastewater treatment plant. This wastewater diversion occurred as a result of a flash flood heavy rain event. CITGO diverted the wastewater into a concrete diked containment area surrounding the wastewater tanks. According to CITGO, the wastewater diversion was necessary to avoid overfilling of stormwater and equalization tanks.
One of the WWTP Equalization Tanks (TK 310) had been out of service for inspection/maintenance going into the subject rainfall event. Followup: No Notes: Wastewater processing rates were maximized and material diverted to diked area was pumped to controlled storage as tankage became available. CITGO will be constructing a fourth wastewater storage tank as well as an additional API separator and aeration tank. | Benzene: 33.0 pounds Xylene: 13.0 pounds Ethylbenzene: 3.0 pounds Toluene: 86.0 pounds |
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