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CITGO Petroleum (1250), Lake Charles
Releases of Volatile Organic Compounds (VOCs)
| LDEQ Accident Number Accident Date |
Point Source(s) | Notes | Amount of Release |
| 82097 2005-09-11 | B-5 FLARE | Cause: Overpressure of the E-402 Depentanizer Tower at B-Reformer unit. Followup: No Notes: Claims emission was below RQ initially. | |
| 81200 2005-08-11 | B-9 Flare | Cause: Intermittent flaring of the B-9 Flare during startup of the E212 Tower at the Creformer Unit. Followup: No Notes: Claims emission was below RQ | |
| 92861 2006-12-27 | Unicracker Unit | Cause: Leak on a split tee connection on a stopple on the E-1 Debutanizer Tower reflux line that caused the shutdown of Unicracker Unit Followup: No Notes: Claims emission was below RQ | |
| 92251 2006-11-26 | B-5 Flare | Cause: upset of the E1 Tower at the C-Topper Unit Followup: No Notes: Claims emission was below RQ | |
| 92267 2006-11-24 | flare sump on B-11 Flare | Cause: No Information Given Followup: No Notes: Claims emission was below RQ | |
| 92150 2006-11-17 | hole in pipeline | Cause: No Information Given Followup: No Notes: Claims emission was below RQ | |
| 90424 2006-09-03 | B-Catalytic Gasoline Hydrotreater | Cause: JP 204B stripper bottoms pump on the E 201 Interstage Stripper Tower experienced a seal failure. Due to the compostion and operating conditions and location within the unit, the Hydrocarbons released auto-ignite Followup: No Notes: No Information Given | |
| 101823 2007-12-19 | Cooling Tower 4 | Cause: ruptured tube suspected as source of leak Followup: No Notes: Hydrocarbon leak in the c-711 Stabilizer Trim Condenser at the Isomerization Unit is cause of emissions. | |
| 101736 2007-12-16 | B-7 Flare | Cause: see notes Followup: No Notes: High second stage discharge temperature trip of the JC-36 topper tail gas compressor | |
| 101552 2007-12-07 | B-11 Flare | Cause: pilot outage at B-11 Flare Followup: No Notes: no reason for pilot outage given in report. | |
| 101551 2007-12-07 | B-11 Flare | Cause: SEAL or GASKET - loss of a water seal on the blowdown system at the Coker 2 Unit Followup: No Notes: VERY COMMON INCIDENT: See notes to 07-04399 | |
| 101498 2007-12-06 | B-11 Flare | Cause: pilot outage at B-11 Flare Followup: No Notes: no reason for pilot outage given in report. | |
| 101370 2007-11-30 | Cooling Towers 1 and 2 | Cause: tube leak in E-12 overhead condenser, C-175D at the C-4 Recovery Un Followup: No Notes: COMMON INCIDENT - see 101177 of 11/20/2007 and 100067 of 10/09/2007 | |
| 101229 2007-11-24 | JC-36 Topper Tail Gas Compressor | Cause: flaring sour tail gas during unexpected shut down of JC- Followup: No Notes: CITGO letter states that no RQ's were exceeded | |
| 101225 2007-11-23 | B-12 Flare | Cause: loss of JC1A Compressor at unicracker unit Followup: No Notes: CITGO letter states that no RQ's were exceeded | |
| 101209 2007-11-21 | B-11 Flare | Cause: pilot outage on B-11 Flare Followup: Yes Notes: no reason for pilot outage given in report. | |
| 101177 2007-11-20 | Cooling Towers 1 and 2 | Cause: tube leak in E-12 overhead condenser, C-175D at the C-4 Recovery Un Followup: No Notes: The backpressure controller set point was changed from 217 to 210 PSIG. The alarm settings will be changed to a lower setting to prevent Operations from running the tower at such an elevated pressure. | 89.0 pounds |
| 100759 2007-11-04 | Lube and Wax Plant Flare | Cause: failed PSV release to CLAW flare Followup: No Notes: CITGO letter states that no RQ's were exceeded | |
| 100672 2007-10-31 | A-Topper Unit at the B-7 Flare ; Feed Prep Unit at the B-6 Flare B-6 Flare ; B-1 Furnace | Cause: see not Followup: No Notes: emissions result from flaring of residual materials in preparation for planned turnarounds | |
| 100672 2007-10-31 | A-Topper Unit at the B-7 Flare ; Feed Prep Unit at the B-6 Flare B-6 Flare ; B-1 Furnace | Cause: see not Followup: No Notes: emissions result from flaring of residual materials in preparation for planned turnarounds | |
| 100461 2007-10-23 | JC-36 Topper Tail Gas Compressor | Cause: Hairline crack in small diameter piping on a pressure tap at the JC-36 Topper Tail Gas Compressor Followup: No Notes: CITGO letter states that no RQ's were exceeded | |
| 100153 2007-10-12 | Tank 503 | Cause: leaking relief valve on Tank 503 Followup: No Notes: Valve will be repaired and put back in service | |
| 100067 2007-10-09 | E-12 overhead condenser, C-175D, at the C-4 Recovery Unit | Cause: see notes Followup: No Notes: leak in the E-12 overhead condenser, C-175D, at the C-4 Recovery Unit causes emission. No cause given for lea | |
| 98928 2007-08-25 | B-11 Flare | Cause: SEAL or GASKET - loss of a water seal on the blowdown system at the Coker 2 Unit Followup: No Notes: VERY COMMON INCIDENT: See notes to 07-04399 | |
| 98774 2007-08-17 | Lube Plant Flare | Cause: Vacuum II Un Followup: No Notes: Fire caused by mechanical seal failure at the Lube Plant Flare resulating from shutdown of Vacuum II Unit | |
| 98659 2007-08-14 | B-11 Flare | Cause: SEAL or GASKET - loss of a water seal on the blowdown system at the Coker 2 Unit Followup: No Notes: VERY COMMON INCIDENT: See notes to 07-04399 | |
| 98548 2007-08-09 | B-7 Flare ; B-8 Flare | Cause: Followup: No Notes: B-7 flaring stems from shutdown of the JC-51 Compressor at the FCCUs; B-8 flaring stems from upset at C4 Recovery Unit | |
| 98523 2007-08-09 | Cooling Tower 5 | Cause: see notes Followup: No Notes: leak at E3 Debutanizer Tower C-07 Reboiler at Straight Run Unit causes emissiong from Cooling Tower 5 | |
| 98367 2007-08-03 | B-11 Flare | Cause: SEAL or GASKET - loss of a water seal on the blowdown system at the Coker 2 Unit Followup: No Notes: Same incident cause as 07-04040 of 07/19/2007 and 07-02449 of 5/12/2007 and 07-02284 of 05/05/2007 | |
| 98028 2007-07-21 | B-5 Flare | Cause: see notes Followup: No Notes: Light hydrocarbon/ water mixture generated at Straight Run Fractionation Unit was steamed out of the B-5 Flare knock-out drum to the flare located at the Mfg. Complex | |
| 97961 2007-07-19 | B-11 Flare | Cause: SEAL or GASKET - loss of a water seal on the blowdown system at the Coker 2 Unit Followup: No Notes: CITGO reports emissions as below RQ | |
| 97516 2007-06-29 | Propane (C3) Mix Line at C-4 Recovery Unit | Cause: internal corrosion of pipe results in 3/32 of an inch diameter leak Followup: No Notes: Huge excess of RQ; Pipe was replaced | 17,372.0 pounds |
| 96768 2007-06-04 | B-7 Flare 3(IX)33 ; Sulften absorber vent at Sulfur Recovery Unit 3(XX-H)1 ; TGII Absorber Vent at Sulfur Recovery Unit 3(XX-J)5 ; furnaces and boilers ; sweet crude oil pipeline to Tank 101 | Cause: short duration rain event; swirling winds 60mph+, hail and lightning - see notes - see not Followup: Yes Notes: The storm caused a loss of power at Substation 21 and power blips on lines from Entergy impacting the Sulfur Recovery Plant. CITGO believes water entered the Substation via a the joint b/w the roof and the side wall causing a fused switch failure. Loss of power resulted in higher pressure and increase in liquid levels causing flaring at B-7. Loss of amine flow and hydrogen sulfide absorption generated heavy smoking from some of the boiler stacks and upset the Sulfur Recovery Plant. Operations pnnel inadvertently overloaded the Central Amine Unit causing high SO2 emissions throughout the Refinery. The crude oil leak was caused by internal corrosion. Limited offsite impact from soot from smoking boilers. REMEDIAL ACTIONS --> A Root Cau | |
| 96739 2007-06-03 | B-7 Flare | Cause: Followup: No Notes: Flaring occurred during shut down of the B-Topper Unit | |
| 96337 2007-05-17 | B-9 Flare | Cause: No information given Followup: No Notes: Emission through B-9 Flare resulted from depressuring contents of a sour gas line from Coker 2 to the flare. No reason for this depressuring is cited. | |
| 96170 2007-05-13 | B-5 flare | Cause: depressuring a propane condensate line to the flare from the Oil Movement Area Followup: No Notes: propane transfer line removed for repair causes incident; De-pressuring to on-site refinery flare. Remedial action, if any, unclea | |
| 96145 2007-05-12 | B-11 Flare | Cause: SEAL or GASKET - loss of a water seal on the blowdown system at the Coker 2 Unit Followup: No Notes: Verbal report states that loop seal had blown but not been reported by prior shift at the time of the seal failure. Relieved pressure on the drum causing it to reseal. | |
| 95938 2007-05-05 | B-11 Flare | Cause: SEAL or GASKET - loss of a water seal on the blowdown system at the Coker 2 Unit Followup: No Notes: Conflict between letter and incident report: letter indicates that all emissions were BRQ; report says SO2 was >1000lbs. No offsite protective action despite emission of material offsite. | |
| 95932 2007-05-05 | JC-2 Recycle Compressor | Cause: unexpected trip of the JC-2 Recycle Compressor caused the shutdown of the Unicracker Unit Followup: Yes Notes: Since Unicracker unit was shut down as result of this incident, CITGO will keep case no. open until unit is returned to servic | |
| 94517 2007-03-09 | E-10 debutanizer tower | Cause: startup of debutanizer tower in c4 Light Ends Recovery Uni Followup: No Notes: Verbal report indicates that there was a grass fire on the Equistar property across from the BLCOH Control Room. This incident involved three separate flares, lasting a total of 1 h 41 mins. The flares resulted from multiple causes, each of which was related to the malfunction of the E-10 debutanizer tower. The two separate grass fires burned for a total of 2 h 54 m. The letter of 3/16/07 from Citgo states that the emissions limits were not exceeded; however, the DEQ incident report indicates NOxemissions totaled 122 lbs, exceeding the 24 hour limit of 10 lb | 1,802.0 pounds |
| 94446 2007-03-08 | EIV valve J-36 Topper Tail Gas compressor | Cause: leaking emergency isolation valve on the J36 Topper Tail gasket Followup: No Notes: | |
| 93978 2007-02-15 | B-12 Flare pilot - Unicracker unit | Cause: pump seal fire and flare pilot outage at the Unicracker Unit Followup: No Notes: | |
| 93789 2007-02-07 | Coker 1 Unit | Cause: Unit upset and the flaring of process gas Followup: No Notes: | |
| 93473 2007-01-25 | Lube and Wax Plant Duosol unit | Cause: Unit upset and the flaring of process gas Followup: No Notes: Claims emission was below RQ; verbal report indicates that Terry Chretien of Citgo insists that the release had not gone off site even though it was a release to air. | |
| 93277 2007-01-14 | flange on C-4 recovery unit | Cause: flange leak during a blind installation for a planned turnaround of the C-4 Recovery Unit Followup: No Notes: No information given | |
| 93266 2007-01-14 | Tank 15 | Cause: Followup: No Notes: Line taken out of service and depressurized; water blanket placed over leaking flange | |
| 93243 2007-01-12 | B-7 Flare | Cause: shut down for planned turnaround of York System and parts of the C-4 Recovery Uni Followup: No Notes: | |
| 111418 2008-12-14 | Unicracker Unit | Cause: see notes Followup: No Notes: Flash fire in the Unicracker Unit | |
| 109637 2008-09-29 | B-12 Flare | Cause: Followup: No Notes: A-SRU experience swings in air demand caused by hydrocarbon carryover from the A Sour Water Tower (E301A). Flow from E-301 to A-SRU was stopped, then restarted. Startup was cause of release. Stopped again. Another start up released even more SO2. REMEDIAL ACTIONS: Upgrade existing suge tank skim oil pumps, Add third surge tank skim oil pump, install instrumentation to detect hydrocarbons in SWS feed | |
| 108247 2008-08-21 | Refinery | Cause: see notes Followup: No Notes: Power Failure | |
| 107166 2008-07-13 | CVEP Unit | Cause: No information given Followup: No Notes: Fire in the CVEP Unit | |
| 106260 2008-06-07 | B-5 Flare | Cause: Followup: No Notes: Valve leak in ALCOH Unit | |
| 105376 2008-05-06 | Cooling Towers 1 and 2 | Cause: No information given Followup: No Notes: CITGO letters states emissions were BRQ | |
| 105367 2008-05-05 | B-5 Flare, B-11 Flare | Cause: see notes Followup: No Notes: Release results from depressuring of a propane line to the flares | |
| 104698 2008-04-11 | K-16 Area | Cause: see notes Followup: Yes Notes: Reformate was released into a pit due to a faulty dresser coupling. The bolts in the coupling released. Dresser coupling replaced with hard piping. | 21,275.0 pounds |
| 104545 2008-04-07 | B-7 Flare | Cause: combusting excess treated refinery fuel Followup: No Notes: CITGO letter states that emissions were BRQ | |
| 103985 2008-03-15 | B-5 Flare | Cause: start up of Coker 1 Un Followup: No Notes: Letter states that emissions did not exceed permitted limits by an RQ amount - does not specify how much was emitted though, or if the amount exceeded the permitted limit | |
| 103986 2008-03-15 | Oily Water Sewer | Cause: see notes Followup: No Notes: Oily Water Sewer backs up in the Treating Plant Unit | |
| 103360 2008-02-22 | B-6 Flare | Cause: shutdown of Topper Tail Gas Compressor JC36 for maintenan Followup: No Notes: CITGO letter states that the emissions were BRQ | |
| 103287 2008-02-21 | B-12 Flare | Cause: loss of JP3 Feed Pump Motor at the Unicracker Unit Followup: No Notes: CITGO letter states that the emissions were BRQ | |
| 102969 2008-02-10 | B-5 Flare D-SRP, A-SRP, C-SRP B-7 Flare B-9 Flare B-12 Flare B-6 Flare | Cause: power outage Followup: Yes Notes: Partial power outage: Powerhouse System feeder cable 444-PH-FR13004 faulted in a Y-splice in manhole 26. bad cable resulted in loss of interconnection of Powerhouse generators and Entergy utility power. Caused collapse of electric and steam generation systems. Protective relay miscoordination is another cause. Root Cause Failure Analysis submitted 3/25/2008 indicates that startup of three Sulfur Recovery Units results in large emissions of sulfur dioxide. REMEDIAL ACTIONS: Revise Construction Inspen QA/QC procedure for PILC cable/splice installation to include additional clarification of detail; Repair 444-PH-FR13004 ; Perform a complete reevaluation of of protective relay coordination for all breakers assoc'd with Powerhouse main buses; I | |
| 102967 2008-02-09 | Propane railcar | Cause: pressure safety valve release from a loaded propane railcar and depressuring of contents of car Followup: No Notes: CITGO letter states that the emissions were BRQ | |
| 102799 2008-02-04 | Sour C3 Mix Pipeline | Cause: leak in the Sour C3 Mix Pipeline and the blowdown of the pipeline to the flare Followup: Yes Notes: According to first letter, RQ for flammable gas likely exceeded and RQ for Sulfur Dioxide possibly exceeded. Follow-up says all was B | |
| 102693 2008-01-29 | C20 Condensate Effluent Exchanger at the Alkyation Unit | Cause: leak from C20 Condensate Effluent Exchanger Followup: No Notes: On 1/18/08 a bypass line to a ditch was installed and the C20 exchanger was removed from service | |
| 102690 2008-01-29 | C-401 Steam Generator at the Coker II Unit | Cause: leak from the C-401 Steam Generator Followup: No Notes: Steps were taken to install new bypasas piping and the steam generator was removed from service on 2/2/08 | |
| 102040 2008-01-01 | B-7 Flare | Cause: trip of the JC-101 compressor at the C4 Recovery Unit Followup: No Notes: CITGO letter states that the emissions were BRQ | |
| 120411 2009-12-24 | B-16 flare | Cause: No RQs were exceeded, so no information was given. Followup: No Notes: Flaring of sour gas from the Ultra Low Sulfur Diesel Hydrotreating unit's flare. No RQs were exceeded, so no information was given. | |
| 120457 2009-12-19 | Acid plant | Cause: Power failure in acid plant area. Followup: No Notes: No RQs were exceeded, so no information was given. | |
| 119256 2009-11-04 | B-4 Flare | Cause: No RQs were exceeded, so no information was given. Release related to loss of flare flame on the B-4 flare. Followup: No Notes: No RQs were exceeded, so no information was given. | |
| 118371 2009-10-02 | No information given | Cause: Loss of pilot light on the B-8 flare Followup: No Notes: No RQs were exceeded so no information is given. | |
| 118282 2009-09-29 | No information given No information given. | Cause: No RQs were exceeded so no further information is given. Followup: No Notes: No information given | |
| 118135 2009-09-22 | Cat area, Pipeline Leak, C-4 Recovery unit | Cause: A vent line in the C-4 Recovery unit ruptured. The line vented hydrocarbon until it was blocked. Caused by localized internal corrosion. Followup: Yes Notes: The line vent was blocked in. | 5,317.0 pounds |
| 118022 2009-08-27 | Drain valves | Cause: The drain valves on three flare drip legs were discovered open and were immediately closed. The drip legs were left open after the routine draining. Followup: Yes Notes: Valves were closed. Citgo failed to notify LDEQ 24 hours after the accident and did not write a follow up letter within 7 days either. Report was not made until 22days after the incident occurred. LDEQ investigated the accident and found a permit violation. LDEQ then granted Citgo a permit modification authorization. | |
| 117168 2009-08-08 | PFU flare | Cause: Pilot flame outage at the PFU flare. No RQs were exceeded so no further information is given. Followup: No Notes: No information given. | |
| 116799 2009-07-26 | BLCOH unit | Cause: No RQs were exceeded so no information is given. Followup: Yes Notes: Police reports states that a lead developed in the B light cycle oil hydro treater unit. Units shut down to try to block the leak. | |
| 116615 2009-07-18 | B7 Flare | Cause: No RQs were exceeded, so no information was given. Followup: No Notes: No information given | |
| 114984 2009-05-15 | Tank 36 | Cause: Oil was leaking from the bottom of tank 36. source of leak was the drain line, which drains water from the external floating roof, and runs internal the tank. The line developed a leak and was losing oil. Followup: No Notes: Drain line closed, and clean-up initiated. | 15,517.0 pounds |
| 113969 2009-04-05 | B-5 | Cause: B-5 flare Followup: Notes: no information given | |
| 113969 2009-04-05 | B-5 | Cause: B-5 flare Followup: Notes: no information given | |
| 125060 2010-07-22 | FLARE; J-36 compressor | Cause: LDEQ report states that "A J-36 compressor tripped at the refinery and caused the flaring of tail gas consisting of H2S, flammable gases, and VOCs for app an hour and a half." FLARE. Followup: No Notes: BRQ. Refinery letter states that no reportable quantities were exceeded. There was perimeter monitoring but no readings were indicated. | |
| 123188 2010-05-02 | B12 flare | Cause: The JC 1C Compressor over-pressurized causing relief valve to open to B-12 flare. Followup: No Notes: No information given | |
| 122547 2010-04-03 | #7 flare #7 | Cause: smoke coming out of flare from unknown source--no more details given--no RQs exceeded Followup: No Notes: no information given | |
| 122264 2010-03-21 | B6 flare | Cause: JC-36 compressor shut down, caused line to overpressurize and release to flare. Followup: No Notes: No information given. SPOC and refinery letter only. No LDEQ report. | |
| 122168 2010-03-17 | B-12 flare | Cause: Swapping out compressors, overloaded system, valve released to flare Followup: No Notes: no information given | |
| 121535 2010-02-17 | FLARE: B8 flare | Cause: relief valve at the C4 unit released sending sour hydrocarbons to the B8 flare. FLARE. Followup: Yes Notes: no info given | |
| 121160 2010-01-30 | FLARE: B12 flare | Cause: unicracker unit shut down--high temperature on a D3 reactor resulted in a 100lb system opening up causing materials to be released to flare
File contains no DEQ report, only refinery letter with no details of incident indicating it is ongoing and under investigation.
Specific calculations promised in follow-up letter to be sent by 2/28/10. Followup: No Notes: air monitoring inside & outside perimeter | |
| 132807 2011-07-30 | FLARE-Ultra-low Sulfur Diesel hydrotreater, B-16 flare | Cause: Ultra-low Sulfur Diesel Hydrotreater (USLD) unit upset led to unplanned shutdown and flaring. Followup: No Notes: BRQ. No information given regarding remedial actions. No LDEQ report included. Notified the SPOC 24:36 after incident occured. | |
| 132825 2011-07-30 | Tank 36 (EQT0088) and Tank 37 (EQT0089) | Cause: The operator failed to manually close the naphtha valve after the switch to C-4 was made, ultimately causing a roof drain leak on Tank 37, a slop oil tank containing hydrogen sulfide. Thus, Citgo failed to diligently maintain control equipment in proper working order whenever emissions were being made. Followup: Yes Notes: Immediate corrective actions taken were changing routings of materials into tank 37 and making efforts to identify the source of the light materials that were believed to cause the hydrocarbon release. Vacuum trucks were cleaning up the spill at the time of the police report. | 2,576.0 pounds |
| 129988 2011-03-17 | Sour Gas Line | Cause: State police report states that there was a leak in a three inch line under a relief valve at the vacuum unit. Product of the release was sour gas and went off-site. Followup: No Notes: BRQ. Line was blocked and repaired. Air monitoring was performed in the plant area, and no readings were indicated. | |
| 129671 2011-03-06 | FLARE: B11 and B12 Flare | Cause: FLARE. State police reports states that fill pressure of the flared gas recovery system was exceeded and resulted in flaring from the B11 and B12 flares. No root cause is known. Material went off-site through the flare and then air. Followup: No Notes: BRQ. No Information Given. Refinery letter and SPOC report only. No LDEQ report. | |
| 144156 2012-08-07 | B-11 Flare | Cause: The Coker II unit gas compressor (JC-201) shutdown. Shutdown resulted in unit gas relieving to the B-11 flare. Specific cause of shutdown was under investigation until September 21, 2012. Followup: No Notes: Half of Coker II unit was shut down and unit feed rate reduced to minimum rate (feed rate reduced by two thirds). In addition, immediate repair was begun on the JC-201 compressor. Compressor JC-201 was repaired and compressor was restarted. Investigation team was assembled to conduct a root cause investigation of shutdown. Release calculations indicate that reportable quantities of sulfur dioxide and hydrogen sulfide were exceeded during this flaring event. | |
| 152225 2013-11-07 | Furnace Tube | Cause: A fire occurred on the A-Reformer combination furnace during startup. Preliminary indication is that a furnace tube, located in the convective section, developed a leak which resulted in a fire. Followup: No Notes: | 360.0 pounds |
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