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Chalmette Refining (1376), Chalmette

Releases of Compressed Flammable Gas

LDEQ Accident Number
Accident Date
Point Source(s) Notes Amount of Release
84073

2005-11-23
No. 2 Coker Wet Gas Compressor
Cause: The wet gas compressor shut down due to the axial thrust alarm, resulting in emissions from the No. 1 Flare. Following investigation, refinery personnel believe the Wet Gas Compressor shut down due to a momentary loss of lube oil.

Followup: No

Notes: In an effort to stop the release, the compressor was restarted, but the alarm remained. Following determination by refinery personnel that maintenance was required on the compressor, K-8101 was taken out of service and sent out for repair. A variance was applied for with the LDEQ to authorize the emissions associated with the compressor maintenance. The variance was approved on November 29, 2005, ending this release.
10,509.0 pounds
79840

2005-06-14
No information given
Cause:

Followup: No

Notes: Rescind notification
1,177.0 pounds
76224

2005-01-18
No information given
Number 2 Flare -- Pressure Safety Valve (PSV) on Fuel Drum for Number 10 Boiler
Cause: From the verbal report: False pressure indicator on tower, caused relief value to open and gases to mix.

Followup: No

Notes:
496.0 pounds
89764

2006-08-05
AE-AOA-05-0109
Cause: faulty level indications device. dehex tower leaked natural gas into tank 2 while the dehex tower was operating in total reflux mode due to upstream unit outages.

Followup: No

Notes: Main block valve to Tank 2 was blocked in and the Dehex bottoms line was double blocked
15,742.0 pounds
87979

2006-05-19
Process unit
Cause: leak in a fan in a process unit

Followup: No

Notes: No information given
486.0 pounds
101744

2007-12-17
No information given
Cause: #1 prefract loss feed to tower, tower over pressured released SO2

Followup: No

Notes: No information given
99603

2007-09-19
Hydro-cracker HCU Unit First Stage Reactor
Cause: Hydro-cracker HCU Unit First Stage Reactor malfunction

Followup: No

Notes: Letter states that no RQ's were exceeded
99133

2007-09-04
#1 Reformer
Cause: #1 Reformer had piping failure on debutanizer reflux line…compressed gas

Followup: No

Notes: Letter states that no RQ's were exceeded
100575

2007-09-04
#2 Coker Unit
Cause: flare isolation unit on coke drum didn't seal when closed. Opened drum to cut it, flare gas backed into drum to atmosphere.

Followup: No

Notes: No information given
110581

2008-11-04
Outfall 001
Cause: leak from overhead exchanger

Followup: No

Notes: CRLLC isolated the deethanizer overhead exchanger and stopped the release to atmosphere
108060

2008-08-15
number one pump around
Cause: -- piping leak on number one pump around

Followup: No

Notes: Claims emission was below RQ.
107866

2008-08-04
Tank 305 and 307 Crude Terminal
Cause: during start up of Coker 2 planned maintenance abypass on a control valve was left open.

Followup: No

Notes: Preventability stated as NA, but Human Factors as a cause tells us it was preventable
2,269.0 pounds
08-BB005-672

2008-02-12
1st Stage High Pressure Separator on the Hydrocracker Unit
Cause: ; thermal stress from start up and shut down, along with cold rain that occurred on the day the leak was detected caused a flange to leak

Followup: No

Notes: CRLLC sends letter to rescind prior notification of H2S release.
1,388.0 pounds
112971

2009-02-24
No Information Given
Cause: No Information Given

Followup: No

Notes: Below reportable quantities.
300.0 pounds
112088

2009-01-16
No Information Given
Cause: No Information Given

Followup: No

Notes: No Information Given
849.0 pounds
126868

2010-10-04
saturated gas line to saturated amine contactor
Cause: WORKER DIED 10/6--"cause of death under investigation" "saturated gas line to the saturated amine contractor started leaking sour gas to the atmosphere through a previously installed clamp" which had been installed 9/22/10.

Followup: Yes

Notes: area barricaded off, work stopped & personnel moved to safe area, respiratory protection for workers in immediate vicinity, internal & external monitoring, clamp on leak repaired/isolated, will have to flare intermittently until line can be completely replaced. "No chronic or acute health risks are anticipated to have occurred off-site or beyond immediate proximity of release point."
4,263.0 pounds
126762

2010-09-29
no information given
Cause: This file only has a brief refinery report with no specific info.

Followup: No

Notes: No information given
131070

2011-05-09
PGC 2nd Stage Aftercooler
Cause: The PGC 2nd Stage Aftercooler leaked hydrocarbon vapors and compressed flammable gas was released to water. OFFSITE IMPACT: Mississippi River.

Followup: No

Notes: BRQ. Refinery letter states that release was below reportable quantities. The exchanger was isolated and the path to water was closed. A boom was deployed at the source and downriver.
1,952.0 pounds
130822

2011-04-26
Fractionator Overhead Fin Fan
Cause: LDEQ states that a leak was observed in the Fractionator Overhead Fin Fan at the Cat Feed Hydrotreater, releasing compressed flammable gas and hydrogen sulfide.

Followup: No

Notes: RQ. Unit commenced an orderly and safe shutdown in order to stop the leak and make necessary repairs.
1,791.0 pounds
128972

2011-02-01
Isobutane Pump number G9005
Cause: The seal on the isobutane pump failed.

Followup: No

Notes: BRQ. LDEQ report states that amount released did not surpass the RQ (5000 lbs) for flammable gas. The pump was isolated and taken out of service and the seal was replaced as corrective action.
1,514.0 pounds
140083

2012-05-26

Cause: The facility experienced malfunctions when the high pressure waste gas system was shut down in the Coker unit, releasing sulfur dioxide to the flare. High Pressure Waste Gas System (HPWGS) compressors K402 and K406 were unavailable due to mechanical issues and the Flare Gas Management System was used instead. This usually works but the depropanizer surge drum water boot sprung a leak and heavy material entered the shut down HPWGS.

Followup: No

Notes: The high pressure waste gas system had been restored by the time of the LDEQ Incident Report.
1,000.0 pounds
No LDEQ Reported

2012-02-09
No information given
Cause: There is a courtesy notification regarding a release of Compressed Flammable Gas and a potential release of oil. There is no detail in the Incident report regrading the cause of the release.

Followup: No

Notes: There is no information given regarding the cause or remedial actions. There is no LDEQ report and no SPOC report attached to the file.
148825

2013-05-20
Fuel gas line
Cause: On May 20, at approximately 3:15 PM, a leak was detected from a fuel gas line near the Hydrocracking Unit. A failure analysis conducted on the failed section of the pipe indicated that increased water saturation and chloride content in the stagnant zone of the pipe was the cause of the degradation.

Followup: Yes

Notes: Immediate remedial action was to barricade the area and water was used to dissipate vapors from the release. The line was isolated and a clamp was installed to mitigate the leak. Onsite monitoring was conducted during the events and all results were zero. No emergency conditions or adverse offsite impacts resulted from this release.
3,445.0 pounds
147393

2013-03-17
piping
Cause: Due to a crack on a pipeline compressed gas and hydrogen sulfide were released to the air. According to a letter submitted by Chalmette Refining, this was a courtesy notification.

Followup:

Notes:
147210

2013-03-07
Hydrogen Feed Pipe at the Hydrodesulfurization Unit
Cause: On Thursday, March 7, 2013, at approximately 20:30 hours, a leak was detected from a hydrogen feed pipe at the hydrodesulfurization unit. CRLLC is conducting a failure analysis of the pipe to determine the cause of the failure and prevent recurrence. Onsite monitoring was conducted during the events and all results were zero. Compressed flammable gas were released to the air. A failure analysis was conducted and indicated stress relieving due to high cycle fatigue was the root cause of the event.

Followup: Yes

Notes: The unit was depressurized and taken out of service in order to isolate and replace the pipe. CRLLC conducted a failure analysis of the pipe to determine the cause of the failure and prevent recurrence. The failure analysis indicated stress relieving due to high cycle fatigue was the root cause of the event. To prevent future recurrence, all existing supports surrounding the piping were inspected and repaired as needed. An additional support was also added near the failure location.
1,864.0 pounds
156774

2014-06-13
Pipe running to tank D-9008
Cause: Personnel identified a pinhole leak on a pressurized light strait run gasoline pipeline that runs to tank D-9008. CRLLC is conducting an investigation to determine the cause of the leak and measures to prevent recurrence.

Followup: Yes

Notes: Upon discovery, site personnel immediately began working to depressure the line and isolate the leak. At approximately 1201 the leak on the line was noted to have ceased and a plug was safely inserted at approximately 1210 to isolate the line. CRLLC is conducting an investigation to determine the cause of the leak and measures to prevent recurrence.
1,807.0 pounds
154310

2014-03-06

Cause: A release of compressed flammable gas, benzene, and sulfur dioxide occurred on March 6, 2014. No further information about accident is given.

Followup: No

Notes: Only document provided about accident is one page refinery letter.
153612

2014-01-30
Crude #1 PSV
Cause: On January 30, 2014, at approximately 06:30, Chalmette Refining personnel identified an atmospheric Process Safety Valve (PSV) leaking on the Crude #1 stabilizer tower, resulting in a release of a liquid petroleum gas (LPG) material comprised primarily of propane and butane.

Followup: No

Notes: The issue was safely resolved at 07:15 am by blocking the inlet to the relief valve. The PSV on the Crude #1 stabilizer tower was sent our for evaluation and it was determined that the internal spring had fractured causing the malfunction. A failure analysis of the PSV is being conducted to determine the cause of the failure and prevent recurrence. 60 day follow up is promised but has not been available to LABB.
24,340.0 pounds