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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
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
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.
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
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
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
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.
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
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.
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.
93266

2007-01-14
Tank 15
Cause:

Followup: No

Notes: Line taken out of service and depressurized; water blanket placed over leaking flange
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
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-12 Flare
B-5 Flare
B-6 Flare
B-7 Flare
B-9 Flare
D-SRP, A-SRP, C-SRP
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
#7 flare
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