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ExxonMobil Refinery (2638), Baton Rouge

Releases in 2010

LDEQ Accident Number
Accident Date
Point Source/Release CauseNotes
128383

2010-12-30
Point Source(s):
Outfall 003

Pollutant(s):
Oil - BRQ
Cause of Problem: Weather

ExxonMobil received over 3 inches of rain in an eight hour period during the evening of 12/29/10, and this large volume and intensity of water resulted in an oil sheen. Material was released through Outfall 003 into Mississippi River via Callahan's Bayou. The size and color of the sheen indicated a release of approximately .25 gallons of oil per National Oceanic and Atmospheric Administration sheen estimating guidance.
Sheen boomed off & cleaned up. Additionally, boom at Callahan's Bayou that was found broken was replaced. Duration of release was approximately 1h 40m from discovery to cleanup completion. This incident will be reviewed through the Refinery's stormwater compliance program, STOP (Sewer Tracking and Oil Prevention) to evaluate responses to future potential rainstorms.
128404

2010-12-30
Point Source(s):
Flare

Pollutant(s):
Sulfur Dioxide - BRQ
Cause of Problem: Maintenance/Procedures

An unknown quantity of sulfur dioxide release due to flaring to correct levels within a steel drum. Liquid contains hydrogen sulfide and when combusted sulfur dioxide was released.
This release is below reportable quantity.
128382

2010-12-30
Point Source(s):
FLARE: Flare #17

Pollutant(s):
Nitrogen Oxide - BRQ
Nitrogen Dioxide - BRQ
Cause of Problem: No Information Given

Flare vent #17 released Nitrogen oxides and Nitrogen Dioxide. Though the initial report to State Police [SPOC] states that more than 1000 lbs of both gases were released, the refinery report states that no reportable quantities were exceeded.
This release was below reportable quantity.
128351

2010-12-27
Point Source(s):
Flares #17 and #19

Pollutant(s):
Sulfur Dioxide - 1,127 pounds
Cause of Problem: Process Upset

The alkylation unit was being shutdown and a compressor at the hydrocracker unit was starting up, this helped the flare gas recover unit to receive higher than normal hydrocarbon vapor rates. This exceeded the vapor recovery system capacity leading to temporary flaring of flare #17 and #19, and the leaking of sulfur dioxide.
"Unit operations were adjusted to end the flaring." "Increased monitoring will be conducted on gas vent rates to prevent recurrence"
128095

2010-12-10
Point Source(s):
weld

Pollutant(s):
Sulfur Dioxide - BRQ
Cause of Problem: Piping or Tubing

Crack in a weld caused a small fire that burned SO2.
A box was placed around the cracked weld to repair the leak and nitrogen was used to maintain an extinguished flame. LABB only has access to the LDEQ incident report. This release is BRQ.
128094

2010-12-10
Point Source(s):
FLARE

Pollutant(s):
Sulfur Dioxide - 500 pounds
Cause of Problem: Process Upset

Upset in light ends unit caused high pressure, had to flare. FLARE.
BRQ. LDEQ report states that this incident was below reportable quantities. No information given. LDEQ report only. No refinery letter included.
128030

2010-12-07
Point Source(s):
No Information Given

Pollutant(s):
Sulfur Dioxide - BRQ
Cause of Problem: Weather

The cold weather may have prevented the gas from reaching the compressor and caused the flare to burn which released sulfur dioxide.
The LDEQ incident report says that an estimated 500 pounds of sulfur dioxide was released due to flaring. This amount is reportable quantity. However, the refinery letter states that no releases exceeded reportable quantity.
128021

2010-12-07
Point Source(s):
No Information Given

Pollutant(s):
NalcoCorexit - BRQ
Cause of Problem: Human Factors

SPOC states while moving a NalcoCorexit tote with a fork lift, it was damaged. NalcoCorexit is basically an alcohol with a major component of Sodium Nitrite.
Clean up is under way. This release is below reportable quantity.
127996

2010-12-06
Point Source(s):
No Information Given

Pollutant(s):
Unknown Substance - BRQ
Cause of Problem: Piping or Tubing

Possible gas leak into water heading for the cooling tower, releasing the gas into the air.
This release was Below Reportable quantities [BRQ].
127934

2010-11-30
Point Source(s):
FLARE: Refinery MEA Scrubbing Tower (T-585)

Pollutant(s):
Sulfur Dioxide - 4,392 pounds
Cause of Problem: Human Factors

FOLLOW-UP REPORT: Root cause determined to be incorrectly calibrated level instrument. INITIAL REPORT: Refinery letter incidents that a process upset was the cause. MEA is used in several towers in the refinery to remove hydrogen sulfide from the hydrocarbon streams. A refinery MEA scrubbing tower, T-585, lost its MEA liquid level, allowing hydrocarbon vapor to enter the MEA system. This malfunction caused flaring. Combined incident involving both the ExxonMobil refinery and ExxonMobil Chemical Plant in Baton Rouge.
INITIAL RESPONSE: Tower T-585 was isolated from the MEA system to eliminate the root cause of incident release potential. Unit operations were adjusted to minimize emissions potential and incident duration. The tower was isolated, and liquid level was restored to stop the incident. FOLLOW-UP RESPONSE: LDEQ states it will investigate further during next facility inspection.
127792

2010-11-23
Point Source(s):
Underground line

Pollutant(s):
Diesel Fuel - 227 gallons
Cause of Problem: Piping or Tubing

Leak in underground line of finished diesel.
This release is reportable quantity. Refinery letter states that reportable quantities were exceeded for oil to soil. Excavated to find source of leak, clamped line, Vacuum trucks were used to remove oil from the ground, and full site remediation will be completed. Spill was contained on-site.
127778

2010-11-20
Point Source(s):
distillate line from a coker

Pollutant(s):
Benzene - BRQ
Cause of Problem: Piping or Tubing

Pinhole leak on a distillate line from a coker.
This release is BRQ. ExxonMobil caught liquid material in bucket and some evaporated. A block was added on the line, and ExxonMobil are currently depressurizing the line for repair."
127712

2010-11-17
Point Source(s):
Light Ends #4 Unit

Pollutant(s):
Monoethanolamine - BRQ
Cause of Problem: No Information Given

Monoethanolamine (MEA), which contains Hydrogen sulfide, was found on concrete behind some insulation in the form of a wet spot.
This release was BRQ.
127694

2010-11-13
Point Source(s):
Tanks 90, 282, 99, 100, 101, and 261

Pollutant(s):
Benzene - 44 pounds
Flammable Gas - 2,765 pounds
Cause of Problem: Instrument Failure

A compressor solenoid [computer] in the vapor recovery unit(VRU) developed an electrical short, which caused the VRU to shut down. The shut down caused atmosphere vents on Tanks 90, 282, 99, 100, 101, and 261 to open and relieve excess pressure. Released 2% Benzene and flammable gas.
Electricians repaired the solenoid and returned the VRU to service. They manually isolated natural gas flow from the tanks. Area around the tanks were monitored with gas test machines (readings below detection limit). Operation personnel monitored the area for odor. The RQs for benzene and flammable vapor were exceeded.
127568

2010-11-06
Point Source(s):
No information given

Pollutant(s):
Oil - 130 gallons
Cause of Problem: Piping or Tubing

An underground Heavy Coker Gas Oil line leaked, spilling oil into the soil.
Exxon states that vacuum trucks removed oil. The contaminated soil will be disposed of properly. Clamp was placed on line until it can be permanently repaired. This release exceeded RQs for oil to soil.
127427

2010-11-04
Point Source(s):
T-210 Reboiler (Unit#ICN)

Pollutant(s):
Hydrocarbon - BRQ
Flammable Gas - BRQ
Cause of Problem: No Information Given

LDEQ states that an odor involving Hydrogen Sulfide and flammable gas was coming from T-210 Reboiler (Unit#ICN)/exchanger. After investigation, it was stated that the leak came from some transient source.
Exxon states the exchanger was removed, steamed out, inspected and monitored for hydrocarbon leaks. After passing leak tests, the exchanger was returned. No RQs exceeded.
127397

2010-11-01
Point Source(s):
No Information Given

Pollutant(s):
Cumene - BRQ
Volatile Organic Compounds (VOCs) - BRQ
Cause of Problem: Piping or Tubing

A pinhole leak was discovered in a pipeline.
The line was isolated and the leak was secured. This release is below reportable Quantity.
127418

2010-10-30
Point Source(s):
Bleeder valve

Pollutant(s):
Oil - 647 gallons
Cause of Problem: Under Investigation

Oil leaked into soil from a partially open bleeder. A full investigation is ongoing to discover the cause of this incident.
The bleeder was closed, plugged and more mitigations were added. Released exceeded LDEQ reportable quantity for oil to soil.
127376

2010-10-28
Point Source(s):
FLARE

Pollutant(s):
Benzene - BRQ
Sulfur Dioxide - BRQ
Nitrogen Oxide - BRQ
Hydrogen Sulfide - BRQ
Highly Reactive Volatile Organic Compounds (HRVOCs) - BRQ
Volatile Organic Compounds (VOCs) - BRQ
Cause of Problem: Instrument Failure

Pressure instrument failed & resulted in flaring. FLARE.
BRQ. Below Reportable Quantities.
127174

2010-10-21
Point Source(s):
Alkytation Unit

Pollutant(s):
Flammable Vapor - 706 pounds
Cause of Problem: Corrosion

The Baton Rouge Refinery (BRRF) Alkylation Unit experience a release. This release did not exceed RQ. However a second release occurred at the Refinery's Mixed Gas Oil tanks within the same 24 hours, and the sum of these emissions exceed RQ for flammable vapor. The Alky Unit leak is described in this report. Please see report for Louisiana State Police Incident #10-06175 for a description of the MGO tank release as well as the sum of the day's emissions. A leak in the body of an orbit valve in Alky Unit's Stratco Train was discovered. The valve is located on the purge refrigeration gas system. Upon discovery, the purge gas system was depressured and shut down to end the release.
Stracto Train's purge gas system was shut down. The corroded carbon steel valve has been replaced with a stainless steel valve. Release was BRQ. Exxon exceeded the reportable quantity threshold for flammable vapors when combined with a second release that occurred within 24 hours. The second release had the LDEQ number 127179. Combined 1,563 pounds for both incidents. Although this individual incident is BRQ, the sum of the two incidents are RQ.
127179

2010-10-21
Point Source(s):
Mixed Gas Oil tankage

Pollutant(s):
Methane - 861 pounds
Cause of Problem: Maintenance/Procedures

The incident took place at the Mixed Gas Oil tankage. The flow valves that supply methane to the tanks fully opened when the computer control system was upgrading. The methane exceeded the tanks' vapor recovery unit, therefore their atmospheric vents opened releasing the gas.
The computer system was returned to service, and the valve was shut. The Methane flow valve will now be manually closed when computer system is shutdown. Exxon exceeded the reportable quantity threshold for flammable vapors when combined with a second release that occurred within 24 hours.The second release had the LDEQ number 127174. Combined 1,563 pounds for both incidents. Although the 2 individual incidents are BRQ, the combined sum of 1,563 pounds is RQ.
127131

2010-10-16
Point Source(s):
E-304 exchanger

Pollutant(s):
Hydrogen - BRQ
Cause of Problem: Seal or Gasket

A possible leak in the flange of the exchanger caused the incident.
State Police report states that they blocked exchanger and began the process of depressurizing it. The area was ropped off until leak stopped. No information given on repairs. Initial State Police report estimates release as greater than 1000 lbs of hydrogen. Refinery Letter states that no reportable quantities were exceeded. [BRQ].
127057

2010-10-14
Point Source(s):
no information given

Pollutant(s):
Hydrocarbon - BRQ
Cause of Problem: Piping or Tubing

LDEQ report states that there was a pinhole leak in jet fuel pipping, causing misting in air.
This release was Below reportable quantities [BRQ].
128655

2010-10-10
Point Source(s):
Furnaces, Incinerators, and Crude Tanks

Pollutant(s):
Hydrogen Sulfide - 6,792 pounds
Cause of Problem: No Information Given

A follow up report was submitted March 12, 2013. This report has the same accident number, and is filed under 1286550 in this database to separate the two incidents in their appropriate years. This report serves as written notification to comply with 40 CFR 302.8, which requires the owner or operator of facility to submit written follow up information for the verbal reporting of a continuous release(CRR). On October 10, 2010 Exxon Mobil Corporation's Baton Rouge Refinery made an initial notification to the NRC, the LA State Police Hazardous Materials Unit, the East Baton Rouge Parish Fire Department, and the LDEQ of the Refinery's continuous releases of hydrogen sulfide. Per continuous release reporting requirements, a one-time follow up report will be filed within thirty days of the anniversary of the source change. Thereafter, annual reassessments will be issued if there is a Statically Significant Increase or a change in the source of release. Report states that hydrogen sulfide is being released continuously due to "burning natural gas as furnace and incinerator fuel".
Within a mile radius of this facility live more than 1000 persons, 13 schools, the Mississippi River, and Monte Sano Bayou. The release is a result of burning natural gas as furnace and incinerator fuel and it is released continuously without interruption.
126972

2010-10-06
Point Source(s):
Pipestill Unit PSLA-9

Pollutant(s):
Virgin Gas Oil - 50 gallons
Cause of Problem: Piping or Tubing

Pipestill Unit PSLA-9 leaked 50.4 gallons of light virgin-gas oil to the soil, as line was being prepared for mechanical work.
The line was isolated so that the release will end, and residual material was collected in a bucket. Same incident as Incident #128798. LDEQ filed same written report twice, under both #126972 and #128798. This release is RQ,
126817

2010-10-02
Point Source(s):
No Information Given

Pollutant(s):
Diesel Fuel - 0
Natural Gas - 0
Cause of Problem: Maintenance/Procedures

Fire training was held at the fire training grounds, and the chemicals involved was Diesel and compressed Natural gas. Smoke was released into the air.
No Information was given for remedial actions. Planned procedure for fire training. Training occurred on two separate days, the 2nd and the 3rd.
126814

2010-10-01
Point Source(s):
Hydro Finers Unit

Pollutant(s):
Hydrogen - BRQ
Cause of Problem: Piping or Tubing

Hydrogen leak in Hydro Finers Unit.
Isolated section of line. This release was below reportable quantities.
126729

2010-09-28
Point Source(s):
no information given

Pollutant(s):
Flammable Gas - BRQ
Cause of Problem: No Information Given

There was a leak of flammable gas, but no further details given.
Fire squad reported to scene and the unit was shutdown. This release is BRQ.
126685

2010-09-26
Point Source(s):
Hydrocracker unit

Pollutant(s):
Hydrogen Sulfide - BRQ
Cause of Problem: Piping or Tubing

Hydrogen sulfide leak in hydrocracker unit set off alarm.
Shut down pump and depressurized--no further details given. This release was BRQ.
126604

2010-09-23
Point Source(s):
FLARE; D-10 Safety

Pollutant(s):
Hydrocarbon - BRQ
Cause of Problem: Process Upset

LDEQ states a safety mechanism that keeps a D-10 from over pressurizing a jet drum malfunctioned and prematurely lifted. It released an unknown amount of flare gas containing like hydrocarbons.
Facility staff isolated the gas as soon as it was noticed, and blocked it in. This release was Below Reportable Quantities [BRQ]. This incident was the second time in two days a safety valve prematurely lifted releasing hydrocarbons.
126578

2010-09-22
Point Source(s):
FLARE

Pollutant(s):
Hydrocarbon - BRQ
Cause of Problem: Process Upset

The LDEQ report states that a safety valve prematurely lifted due to a malfunction, but also states that an investigation by facility staff is ongoing at this time.
Escaped hydrocarbon vapors were sent to the flare. Refinery letter provides no additional details, except that release was determined to be Below Reportable Quantities [BRQ].
126270

2010-09-10
Point Source(s):
flare

Pollutant(s):
Isobutane - BRQ
Sulfur Dioxide - BRQ
Cause of Problem: Maintenance/Procedures

The Alky Unit was shut down, and while preparing equipment, isobutane released to flare system.
Release was Below Reportable Quantities [BRQ].
126200

2010-09-07
Point Source(s):
No Information Given

Pollutant(s):
Carbon Monoxide - BRQ
Cause of Problem: Piping or Tubing

A 4 inch pipe to an air line was severed releasing carbon monoxide.
No reportable quantities were exceeded. The pipe was isolated.
126085

2010-09-01
Point Source(s):
unspecified pipeline

Pollutant(s):
Gasoline - 20 gallons
Cause of Problem: Piping or Tubing

Gasoline leak to pavement at PPL sample station in a pipe coming from a tank leading to the docks.
BRQ. Refinery letter states that no reportable quantities were exceeded. Leak was stopped, no details given.
126044

2010-08-30
Point Source(s):
west coker

Pollutant(s):
Oil - 19 gallons
Benzene - 10 pounds
Cause of Problem: Equipment Failure

Strainer developed a leak at west coker.
This release was BRQ.
125972

2010-08-27
Point Source(s):
no information given

Pollutant(s):
Hydrogen - BRQ
Cause of Problem: Seal or Gasket

A leak on a gasket caused a release of Hydrogen.
Compressor valve isolated and depressurized. This release was BRQ.
125914

2010-08-24
Point Source(s):
flares # 17 and 19

Pollutant(s):
Hydrocarbon - BRQ
Sulfur Dioxide - BRQ
Cause of Problem: Process Upset

An upset on the process unit caused flaring.
No further information provided,
125825

2010-08-21
Point Source(s):
no information given

Pollutant(s):
Butane - BRQ
Pentane - BRQ
Cause of Problem: Piping or Tubing

A Leak at a pipe union caused a release of butane and pentane.
No further information given.
125843

2010-08-21
Point Source(s):
Flare

Pollutant(s):
Sulfur Dioxide - 3,084 pounds
Cause of Problem: Instrument Failure

Two flaring incidents in one 24hr period: on 8/21, water boot level instrument malfunction on the Hydrocracker Unit Low Pressure Separator Drum D-105; on 8/22, level instrument on Sponge Absorber Tower's reflex drum D-114x failed. These releases exceeded RQ for sulfur dioxide.
The water boot was isolated and the drum liquid level lowered.
125762

2010-08-19
Point Source(s):
Alky line to depropylizer feed

Pollutant(s):
Propane - BRQ
Isobutane - BRQ
Butane - BRQ
Cause of Problem: Piping or Tubing

An Alky line to depropylizer feed leaked.
Line blocked & depressurized. This release was BRQ.
125488

2010-08-06
Point Source(s):
No information given

Pollutant(s):
Lubricating Oil - BRQ
Cause of Problem: No Information Given

Incident report states Hydrocarbon liquid bubbled up from soil. It was later confirmed to be lube oil. Cause was not given in refinery report as it was Below Reportable Quantities [BRQ].
Release was Below Reportable Quantities. LDEQ follow-up phone call placed on 10/1/10 to request name and quantity of specific substance released on 8/6/10. This information was not included in refinery report form 8/12/10.
125438

2010-08-06
Point Source(s):
Reboiler tube

Pollutant(s):
Flammable Gas - BRQ
Cause of Problem: Piping or Tubing

There was a reboiler tube leak and flammable gases were released.
BRQ. No information given.
125414

2010-08-04
Point Source(s):
FLARE

Pollutant(s):
Unknown Substance - BRQ
Cause of Problem: No Information Given

No information provided about cause or material released through the flare.
This incident was BRQ but no details provided about what material was release or remedial actions. LABB only has access to the refinery incident report and not the LDEQ incident report.
125332

2010-08-02
Point Source(s):
Depropanizer column

Pollutant(s):
No Information Given - BRQ
Cause of Problem: Seal or Gasket

Alarm was triggered on the depropanizer column. There was a leaking flange.
This release is BRQ. The leaking flange was secured. Refinery Letter states that "after further evaluation, we have determined that this release is regulated by the Leak Detection and Repair regulations and is not considered an unauthorized discharge."
125358

2010-08-02
Point Source(s):
Crude Oil Unit: #9 pipeline

Pollutant(s):
Crude Oil - BRQ
Cause of Problem: Piping or Tubing

A small leak occurred under insulation on the Number 9 pipe still at the crude oil unit. A tower developed a small hole resulting in a fire at point of release. Fire burned twenty minutes.
This release was BRQ.
125308

2010-07-31
Point Source(s):
No Information Given

Pollutant(s):
Crude Oil - BRQ
Cause of Problem: No Information Given

No information provided about the cause of a spill of approximately one barrel of crude oil.
Initial reports that one barrel of crude oil was spilt which is RQ, but the refinery letter later states that this release was BRQ.
125230

2010-07-28
Point Source(s):
Heat Exchanger

Pollutant(s):
Naphtha - BRQ
Cause of Problem: Equipment Failure

"Heat exchanger leak at the head and solvent naphtha is leaking. Depressurized to stop it."
BRQ. No information given.
125135

2010-07-24
Point Source(s):
No Information Given

Pollutant(s):
No Information Given - BRQ
Cause of Problem: No Information Given

No information provided about the cause of this incident or the material released.
The total release of an unspecified substance was less than a gallon. This release was BRQ. LABB only has access to the refinery incident report.
125129

2010-07-23
Point Source(s):
exchanger E101

Pollutant(s):
Hydrogen - 0
Cause of Problem: Maintenance/Procedures

There was a small exchanger fire during a unit shutdown which resulted in a hydrogen leak from exchanger E101.
Team sent in to secure leak. No information provided about how much material was released or if it was BRQ. LABB only has access to the LDEQ report and not the refinery letter.
124763

2010-07-09
Point Source(s):
Pipeline

Pollutant(s):
Benzene - BRQ
Cause of Problem: Piping or Tubing

Pipeline was leaking. Monitoring ongoing.
BRQ. Refinery states that "not enough leaked for exceedances. Remediation completed. No offsite leaking occurred."
124680

2010-07-08
Point Source(s):
Valve

Pollutant(s):
Oil - BRQ
Cause of Problem: Seal or Gasket

A valve leak with packaging was discovered. There was no active leaking when discovered.
BRQ. The location was excavated and remediated. One-fourth of a pint of jet was discovered. The area will remain open for monitoring. Less than one gallon of oil was released which is BRQ.
124604

2010-07-03
Point Source(s):
No information given

Pollutant(s):
No Information Given - BRQ
Cause of Problem: No Information Given

No information given about the cause or the material released from this incident.
The release of an unspecified substance was BRQ. LABB only has access to the refinery incident report.
124605

2010-07-03
Point Source(s):
NIG

Pollutant(s):
No Information Given - BRQ
Cause of Problem: No Information Given

No information provided about the cause or the material released from this incident.
The release of an unspecified substance was BRQ. LABB only has access to the refinery incident report.
124548

2010-06-30
Point Source(s):
NIG

Pollutant(s):
No Information Given - BRQ
Cause of Problem: No Information Given

A release occurred at the sulfur recovery unit, but no information given about the cause or the material released.
The release of an unspecified substance was BRQ.
124487

2010-06-26
Point Source(s):
Tank #100 pressure vacuum vent

Pollutant(s):
Benzene - BRQ
Cause of Problem: Process Upset

Tank #100 pressure vacuum vent blew releasing benzene.
ExxonMobil lowered the pressure to close the vent. LABB only has access to the LDEQ incident report. This release was BRQ.
124467

2010-06-25
Point Source(s):
cooling water tower

Pollutant(s):
Hydrogen Sulfide - BRQ
Cause of Problem: No Information Given

There was a leak through cooling water tower., but the cause is unknown at this time.
LDEQ states that an initial report indicated there maybe an exceedance of RQ for H2S, but a follow up report indicated that sampling revealed the release was BRQ. LABB only has access to the LDEQ incident report.
124439

2010-06-24
Point Source(s):
flare

Pollutant(s):
No Information Given - BRQ
Cause of Problem: No Information Given

No information provided about the cause or the material released from flaring.
The release for this unspecified substance from the flare is BRQ. LABB only has access to the refinery incident report.
124370

2010-06-22
Point Source(s):
heat exchanger bundle in hydrocracker unit [HCU]

Pollutant(s):
Hydrogen Sulfide - BRQ
Flammable Volatile Organic Compounds - BRQ
Cause of Problem: Piping or Tubing

Leak in heat exchanger [tubing] bundle in the hydrocracker unit. H2S monitor went off.
A new bundle has been ordered and present one will continue to operate as the RQ not exceeded. LABB only has access to the LDEQ report.
124285

2010-06-18
Point Source(s):
FLARE: vapor recovery system

Pollutant(s):
Sulfur Dioxide - 1,039 pounds
Cause of Problem: Process Upset

All cooling towers are over temperature limit and will be flaring at the coker unit.
Feed rates reduced to stop temporary flaring. 1,039 pounds of SO2 were released through the flare which is RQ. LABB only has access to the LDEQ incident report.
124246

2010-06-17
Point Source(s):
wastewater pipeline

Pollutant(s):
Wastewater - BRQ
Cause of Problem: Piping or Tubing

There is a pinhole leak in wastewater pipeline.
Clamp installed to stop the leak. This release was BRQ. LABB only has access to the SPOC and LDEQ incident report.
124195

2010-06-16
Point Source(s):
compressor - hydrocracker unit [HCU]
compressor hydrocracker unit [HCU]

Pollutant(s):
Hydrogen Sulfide - BRQ
Flammable Vapor - BRQ
Cause of Problem: Equipment Failure

Leak in compressor in the hydrocracker unit.
Compressor was shut down. LDEQ report states that no reportable quantities were exceeded. LABB only has access to the LDEQ report.
124134

2010-06-14
Point Source(s):
Intermediate Crack Naptha Unit; Mixed Gas Oil tank vent

Pollutant(s):
Flammable Vapor - 9,193 pounds
Cause of Problem: Maintenance/Procedures

Equipment on the intermediate Cat Naphtha unit (ICN) was taken out for maintenance and material was sent to Mixed Gas Oil (MCG) tank. The vapor recovery system could not handle the pressure and vents opened releasing RQ of flammable vapors (9,193 lb). This event is still under investigation.
This release is RQ. The ICN was returned to service and stopped the release. The root cause will be determined and appropriate follow up action will be implemented. LDEQ report states that they will address this report at the next scheduled inspection of the refinery.
124190

2010-06-12
Point Source(s):
Tank 261

Pollutant(s):
Hydrogen Sulfide - BRQ
Volatile Organic Compounds (VOCs) - BRQ
Gas Oil - BRQ
Cause of Problem: Equipment Failure

Leaking access hatch on tank #261 released mixed gas oil.
Repaired hatch by tightening bolts to stop leaking.
124028

2010-06-08
Point Source(s):
no information given

Pollutant(s):
Ammonia - BRQ
Catalyst - BRQ
Cause of Problem: Piping or Tubing

A line developed leak, and water had traces of ammonia & some cat cracker catalyst.
A water clamp was applied. Spill was below reportable quantities. LABB only has access to the LDEQ and SPOC reports.
124047

2010-06-06
Point Source(s):
no information given

Pollutant(s):
Propane - 4,200 pounds
Cause of Problem: Instrument Failure

A crack on press instrument leaked propane found on 6/6/10. Later it was found that leak started 16 hours earlier. 4200 pounds of propane released. Reportable Quantities [RQ] exceeded.
No Information Given. LABB only has access the LDEQ incident report.
123867

2010-06-01
Point Source(s):
No information given

Pollutant(s):
Oil - BRQ
Cause of Problem: No Information Given

Oil leaked to ground. No additional details given.
Approximately .25 bbls of oil leaked to the ground. This release is BRQ. LABB only has access to the LDEQ incident report.
123916

2010-05-31
Point Source(s):
Underground Crude Line

Pollutant(s):
Oil - 395 pounds
Cause of Problem: Piping or Tubing

Oil was spilled due to a leak in an underground crude line. Oil was discovered on the ground.
This release is RQ. Absorbent pads and vacuum trucks were used to remove the oil, and excavated soil will be disposed of properly. The pipe was clamped and evacuated. There are no plans to return the line to service.
123706

2010-05-25
Point Source(s):
no information given

Pollutant(s):
Hydrogen - BRQ
Cause of Problem: Piping or Tubing

Crack in weld off of a gas line.
Steaming it to prevent ignition, and shut tower down. No RQs exceeded. LABB only has access to the LDEQ incident report.
123772

2010-05-25
Point Source(s):
No Information Given

Pollutant(s):
Hydrocarbon - BRQ
Cause of Problem: No Information Given

Liquid in line, suspect hydrocarbons--no other details. LDEQ report states that release was below reportable quantities [BRQ].
LABB only has access to the LDEQ incident report. No RQs exceeded.
123603

2010-05-19
Point Source(s):
no information given

Pollutant(s):
Naphtha - BRQ
Cause of Problem: Seal or Gasket

Flange leak on pipe with terrible odor.
Isolated and drained pipe to do needed repairs. No additional information given. LABB only has access to the LDEQ incident report. No RQs exceeded.
123517

2010-05-16
Point Source(s):
Tank 1523

Pollutant(s):
Oil - 164 gallons
Cause of Problem: Corrosion

Oil found floating on water inside the Tank 1523 firewall in Anchorage Tank Farm. Oil leaked from tank roof drain during heavy rain. A corroded leg sleeve was determined to be the leak source. Secondary cause noted as storms.
Tank roof drain blocked and absorbent boom deployed around tank. Vacuum truck used to remove floating oil. Leg sleeve will be repaired before returning tank to service. 3.9 barrels of oil was released which is RQ.
123402

2010-05-12
Point Source(s):
heat exchanger E-578

Pollutant(s):
Benzene - 0
Toluene - 0
Cyclohexane - 0
Cause of Problem: Piping or Tubing

T-570 reboiler [tubing] bundle in heat exchanger E-578 leaked at the #2 Light Ends Unit.
Leak isolated, blocked away, and exchanger shut down to stop the leak. No information provided regarding the amount of material released or if release was RQ. LABB only has access to LDEQ incident report.
123244

2010-05-05
Point Source(s):
PCLA-2 Unit

Pollutant(s):
Sulfur Dioxide - 1,052 pounds
Cause of Problem: Instrument Failure

The PCLA-2 unit was following start up procedures when one of the unit's air blowers tripped due to an erroneous upstream level instrument reading. Reduced air flow rates caused an increase in light material production, which resulted in a compressor shutting down. This in turn caused hydrocarbon to be sent to the flare system, by design, until unit operations could be restored. The flaring resulted in a sulfur dioxide RQ exceedance. The original amount reported was 969 lbs, but an updated amount increased the estimate to 1,052 pounds of SO2 released..
This release is RQ. Instrument level was adjusted to prevent erroneous readings. A citizen complaint ( T-13243) was also logged in by SPOC [State Police].
123223

2010-05-04
Point Source(s):
Unfinished Jet Fuel Line

Pollutant(s):
Oil - 1,344 gallons
Volatile Organic Compounds (VOCs) - 9,727 pounds
Cause of Problem: Piping or Tubing

LDEQ Spill Report states that oil was spilled due to a leak in an underground, unfinished jet fuel line.
RQ. Vacuum trucks were used to remove oil, and contaminated soil was placed in roll-off boxes. The line was CLAMPED to prevent future leaks. Refinery letter also states that there were "no offsite impacts, injuries, or complaints as a result of this incident."
123218

2010-05-03
Point Source(s):
Powerformer tower

Pollutant(s):
Benzene - 8 pounds
Flammable Vapor - 4,350 pounds
Cause of Problem: Process Upset

Atmospheric safety valve lifted on the Powerformer tower due to operational issues with gas compressor that supply material to different refining units.
Relieving the pressure on the tower did not reseat the valve. Operators suited up and isolated the valve when it reseated stopping the release. Procedures for removing the compressors from service will be altered to prevent a similar occurrence. This release exceeded the RQ for flammable vapors.
123630

2010-04-28
Point Source(s):
underground crude oil line

Pollutant(s):
Crude Oil - 57 gallons
Cause of Problem: Corrosion

Oil was found pooled on the ground, and excavation revealed that an underground crude oil line leaked due to underground corrosion. 56.8 gallons of oil was released which is above RQ.
Failed line excavated & clamped, and contaminated soil removed.
122930

2010-04-21
Point Source(s):
D902 drum

Pollutant(s):
Flammable Vapor - BRQ
Cause of Problem: Piping or Tubing

Crack in a weld on the D902 drum leaked flammable vapors. The leak continues in incident #122931 and results in RQ exceedance. However, in this specific report, the release is still BRQ.
Drum isolated and depressurized, and the section of the pipe was modified to prevent occurrence. Initial estimates indicate that 2400 pounds of flammable vapors were released, but a later report ensures that only 416 pounds were released. This release is BRQ. LABB only has access to the LDEQ incident report.
122931

2010-04-21
Point Source(s):
D902 drum

Pollutant(s):
Flammable Volatile Organic Compounds - 2,500 pounds
Cause of Problem: Piping or Tubing

Continued leaking of flammable volatile organic compounds from crack in weld on D902 drum. Same issue as incident #122930. Continuation of incident caused reportable quantities [RQ] to be exceeded.
Drum isolated and depressurized, and the section of the pipe was modified to prevent occurrence. Sector pipe removed and modified to prevent recurrence. 2,500 pounds of flammable VOCs release which exceeds RQ. Initial estimates indicate that 2400 pounds of flammable vapors were released, but a later report ensures that only 416 pounds were released. This release for flammable vapors is BRQ. Incident #122930 refers to flammable vapor, incident #122931 refers to flammable VOCs. Including release of flammable VOCs, not flammable vapors, in database. LABB only has access to the LDEQ incident report.
122839

2010-04-19
Point Source(s):
no information given

Pollutant(s):
Volatile Organic Compounds (VOCs) - BRQ
Cause of Problem: Equipment Failure

During start up of a unit, foam was discovered in a cooling tower which indicates a leak of VOCs. Investigation is going on to determine which heat exchanger was leaking VOCs.
No RQs exceeded. LABB only has access to the LDEQ incident report.
122756

2010-04-14
Point Source(s):
no information given

Pollutant(s):
No Information Given - BRQ
Cause of Problem: Under Investigation

There was a flash fire in Refinery Gas Compression Unit during routine compressor maintenance, per procedure, when the fire occurred. Root cause still under investigation. Three people injured and were sent to a local hospital.
Area secured and compressor isolated. Exxon is working with OSHA to determine root cause to prevent recurrence. No information given about pollutants emitted.
122774

2010-04-14
Point Source(s):
FLARE: PCLA-2 [CCU]

Pollutant(s):
Hydrogen Sulfide - BRQ
Sulfur Dioxide - 1,653 pounds
Carbon Monoxide - BRQ
Nitrogen Oxide - BRQ
Cause of Problem: Instrument Failure

Facility was called after smoky flare was noticed. A level instrument critical to unit operations that malfunctioned caused flaring. Exceeded RQ for SO2. Follow-up letter states that a recent analysis of the refinery flare system resulted in updated release amount: 1653 lbs
The unit was shut down to end the release. This incident is under investigation to determine the root cause in order to prevent reoccurrence. This release exceeded the 1,000 pound RQ value for SO2. LDEQ incident report indicate that this incident is #122774 and State police #10-01932. However, the refinery letter indicates that this incident is incident #s 122774, 123224, and 124285 and state police numbers 10-01932, 10-02386, 10-03389.
122773

2010-04-13
Point Source(s):
no information given

Pollutant(s):
Diesel Fuel - 168 gallons
Cause of Problem: Piping or Tubing

Underground line leaked diesel fuel and exceeded RQ.
A clamp was placed on line to prevent further leaking, spill vacuumed, and contaminated soil removed. 4 barrels of diesel released which is above the RQ value.
122703

2010-04-12
Point Source(s):
pipe

Pollutant(s):
Diesel Fuel - 1,050 gallons
Volatile Organic Compounds (VOCs) - 7,897 pounds
Cause of Problem: Piping or Tubing

A diesel oil spill. An eight inch pipe ruptured releasing approximately 25 barrels of diesel impacting soil. Report states that spill was contained on-site.
RQ. Letter states that a clamp was installed on the ruptured pipe, and the pipe was de-inventoried to prevent further release. Vacuum trucks removed oil from nearby sewers and diesel impacted soil was excavated for disposal. No injuries, fires or road closures were reported as a result of this incident.
122467

2010-03-30
Point Source(s):
No Information Given

Pollutant(s):
Propane - BRQ
Volatile Organic Compounds (VOCs) - BRQ
Cause of Problem: Seal or Gasket

Worker discovered ice ball around flange which indicates a leak of gas had occurred.
Equipment shut down, leak isolated and repaired. This release was BRQ.
122406

2010-03-26
Point Source(s):
flare

Pollutant(s):
No Information Given - BRQ
Cause of Problem: Maintenance/Procedures

Planned and controlled release for maintenance.
Below reportable quantities. No specification of what chemicals were released.
121935

2010-03-06
Point Source(s):
No Information Given

Pollutant(s):
Oil (Sheen) - BRQ
Cause of Problem: Piping or Tubing

Worker noticed oil sheen under the dock at #2 berth. A leak from the middle cluster drain pan allowed 7.9 gallons of oil to leak into the Mississippi River. The oil was contained between two pipes running at water level.
Absorbent pads and boom used to contain and clean up. This release is BRQ.
121915

2010-03-05
Point Source(s):
Tank Transfer Piping

Pollutant(s):
Oil - 2,743 gallons
Volatile Organic Compounds (VOCs) - 20,236 pounds
Polycyclic Aromatic Hydrocarbons - 22 pounds
Cause of Problem: Corrosion

Underground corrosion caused a failure in the line of tank transfer piping.
RQ. When the leak was discovered, the underground line was isolated via block valves. The failed line was CLAMPED to prevent further leaks. Contaminated soil was removed to confirm the leak source. Refinery letter also states that there were "no offsite impacts, injuries, or complaints as a result of this incident."
121720

2010-02-23
Point Source(s):
Power Former Unit

Pollutant(s):
Flammable Gas - BRQ
Cause of Problem: No Information Given

An odor of flammable gas was detected at the power former unit in the T-31 tower.
BRQ. Refinery letter states that "due to proactive response steps take to isolate the leak, the release amounts were limited to less than RQ thresholds. Incident categorized as "open" by LDEQ as of June 2011.
121338

2010-02-07
Point Source(s):
None Reported
Pollutant(s):
Cause of Problem: Instrument Failure

Oxygen analyzer of a tank vapor recovery unit stopped reading correctly due to malfunction of a recently replaced internal cell which tripped the VRU compressor.
Oxygen analyzer repaired and instrument cell re-calibrated. LDEQ report indicates intermittent release of toluene, benzene, xylene, and VOCs. Follow-up from refinery says no emissions since no release vents opened. Therefore, no release occurred as a result of this incident. Related citizen complaint regarding odor to LDEQ: #121473. Inconsistencies in the time in the LDEQ report and the time of the incident in the refinery report.
121241

2010-02-03
Point Source(s):
no information given

Pollutant(s):
Isopropyl alcohol - BRQ
Cause of Problem: Piping or Tubing

Pipe leaked isopropyl alcohol. This release is BRQ.
LABB only has access to the LDEQ incident report.
120883

2010-01-20
Point Source(s):
#12 de-propanizer

Pollutant(s):
Ethylene - BRQ
Propylene - BRQ
Flammable Gas - BRQ
Cause of Problem: Piping or Tubing

Leak on a 3/4" pipeline at the #12 depropanizer. Instrument from feed drum leaking at elbow of line.
Release is BRQ. Line isolated and secured. LABB only has access to the LDEQ incident report.
120862

2010-01-19
Point Source(s):
sulfur recovery unit

Pollutant(s):
Hydrogen Sulfide - BRQ
Sulfur Dioxide - BRQ
Cause of Problem: Process Upset

Sulfur Recovery Unit process upset. No further details provided.
Release is BRQ.
129282

2010-01-14
Point Source(s):
Air Supply Control Valve

Pollutant(s):
Flammable Vapor - 3,953 pounds
Cause of Problem: Seal or Gasket

A leak developed in the air supply control valves that regulate natural gas flow to the Mixed Gas Oil tanks. For safety reasons, the valves are designed to fail open, so loss of instrument air resulted in excess natural gas entering the tanks. The vapor recovery system could not recover all of the gas, and some natural gas was vented to the air.
Release exceeds RQ. The instrument air was repaired, and the natural gas control valves were returned to service. LDEQ initially noted 13 months after incident, and there is no explanation provided for the delay. LDEQ report from 3/30/11 only states that incident will be deferred until next inspection.
120747

2010-01-13
Point Source(s):
Transfer line to furnace

Pollutant(s):
Crude Oil - 0
Cause of Problem: Piping or Tubing

Transfer line to furnace leaked & caused a flash fire. FIRE.
Line isolated, fire put out. State Police Hazmat report only. No LDEQ report or Refinery letter.
120709

2010-01-11
Point Source(s):
safety valve on gas compressor

Pollutant(s):
Hydrogen - BRQ
Cause of Problem: Seal or Gasket

Safety valve lifted on gas compressor releasing hydrogen.
No reportable quantities were exceeded.
120699

2010-01-10
Point Source(s):
vacuum jet on vapor recovery system

Pollutant(s):
Benzene - 66 pounds
Cause of Problem: Weather

Vacuum jet that keeps the vapor recovery system failed due to cold weather. Benzene vented to atmosphere intermittently and restarted once thawed. Written report states that block in fuel gas line due to subfreezing temperatures resulted in back pressure on blowdown drum which blew intermittently its atmospheric seal. HCE vacuum jet sends vapors from several tanks in Aromatics unit to this blow down drum ( BD-106) and resulted in tank venting to atmosphere. Amount of Benzene released from these two sources is 66 lb.
Release exceeds RQ. Exxon thawed liquid line, vacuumed liquid away and restarted jet. Steps in place to eliminate freeze points and restore flare gas pressure. LABB only has access to State Police and LDEQ reports.
120697

2010-01-10
Point Source(s):
Coker unit

Pollutant(s):
Hydrogen Sulfide - BRQ
Cause of Problem: Process Upset

Coker unit had pressure release valve blow briefly into blowout drum.
Release was secured and BRQ.
120700

2010-01-10
Point Source(s):
number 10 Pipe - Still Unit

Pollutant(s):
Wastewater - BRQ
Benzene - BRQ
Cause of Problem: Piping or Tubing

Pipeline leaked wastewater with benzene to the pavement.
Release was BRQ. Could be same freeze-related problem as DEQ #120677 from the same day involving a leaking of wastewater and benzene, but is unclear given incomplete information provided.
120701

2010-01-10
Point Source(s):
leaking pipe

Pollutant(s):
Benzene - 0
Wastewater - 20 gallons
Cause of Problem: Weather

Benzene spill possibly due to pipe leaking in freezing weather.
No Refinery letter. LDEQ report indicates refinery filed a report with State Police detailing the event, but it's not included in the file.
120677

2010-01-09
Point Source(s):
unspecified piping

Pollutant(s):
Wastewater - BRQ
Benzene - BRQ
Cause of Problem: Weather

Discharge piping on pump had freeze related damage.
Release is below reportable quantities.
120611

2010-01-08
Point Source(s):
flare

Pollutant(s):
Sulfur Dioxide - 0
Hydrogen Sulfide - 0
Volatile Organic Compounds (VOCs) - 0
Propane - 0
Cause of Problem: Weather

Over pressure to flare due to cold weather. LDEQ indicates it is a safety issue and flared with smoke. No information given as to amounts of releases.
LABB only has access to LDEQ incident report. No information provided if release was BRQ.