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Marathon Ashland Petroleum (3165), Garyville

Releases in 2009

LDEQ Accident Number
Accident Date
Point Source/Release CauseNotes
120288

2009-12-20
Point Source(s):
Unit 63 Tends Pump

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

Hydrogen leak in the #4 reactor lead to a fire within unit 212 platformer.
SERT was notified and responded.
120284

2009-12-19
Point Source(s):
unit 63

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

The tend pump in unit 63 Tank FArm blew a seal releasing propylene to the atmosphere
the pump was vented to flare.
119673

2009-11-23
Point Source(s):
kerosene hydrotreater unit

Pollutant(s):
Nitrogen - 24 pounds
Hydrogen - 4 pounds
Hydrogen Sulfide - 4 pounds
Methane - 0 pounds
Ethane - 1 pounds
Propane - 3 pounds
n-Butane - 2 pounds
1-Pentene - 0 pounds
n-Pentane - 3 pounds
Butane - 5 pounds
Cause of Problem: Human Factors

During start-up of the kerosene hydrotreater unit (KHT), a bleeder valve o a piperack outside the unit was inadvertently left open, releasing gas into the atmosphere.
the line was isolated, and the valve was closed.
116971

2009-08-03
Point Source(s):
coke drum

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

During coke cutting operation, a sudden fall-out of the coke drum contents took place.
personnel sheltered until the nature of the accident was understood.
116933

2009-07-31
Point Source(s):
None Reported
Pollutant(s):
Cause of Problem: Equipment Failure

A small fire occurred as a result of a malfunction of the coker conveyor belt. No RQs were exceeded.
The fire was extinguished. Exact pollutants are not know and were not disclosed. "Products of combustion" were reported released by Marathon. The fire lasted about 40 minutes.
116896

2009-07-29
Point Source(s):
unit 27

Pollutant(s):
Hydrogen Flouride - 0 pounds
Cause of Problem: Seal or Gasket

Hydrogen Fluoride mixed with iso-butane, butane, and a seal barrier fluid sprayed from a quick connect on the seal pot of the main fractionator reflux pump onto an operator's left arm and shoulder. The injured operator was kept in a hospital overnight.
the pump was isolated and the line plugged.
116261

2009-07-07
Point Source(s):
Railcar loading rack, Unit 64 (EQI 14-97, EQT 0055)

Pollutant(s):
Propylene - 728 pounds
Nitrogen Oxide - 176 pounds
Carbon Monoxide - 955 pounds
Cause of Problem: Equipment Failure

Leaks on a relief valve flange and a dome flange were discovered on a rail-car when it arrived at the plant.
The car was relieved to flare instead of pressuring the car to off-load the contents, which is the normal procedure. Pressuring the car would have made the leaks worse.
115720

2009-06-16
Point Source(s):
exchanger 05-1313

Pollutant(s):
Ethylene - 0 pounds
Propane - 5 pounds
Propylene - 3 pounds
Isobutane - 1 pounds
n-Butane - 4 pounds
1-Butene - 4 pounds
1-Pentene - 3 pounds
n-Pentane - 9 pounds
Pentene - 65 pounds
Hexane - 68 pounds
Hydrogen Sulfide - 0 pounds
Cause of Problem: Equipment Failure

Pinhole leak from exchanger, 05-1313, caused a release of naphtha to the coker unit pad.
the exchanger was isolated, and contents were directed to the oily water sewer.
115595

2009-06-11
Point Source(s):
Hydrocarbon feed exchanger

Pollutant(s):
Benzene - 1 pounds
Naphtha - 100 gallons
Hydrogen Sulfide - 13 pounds
Volatile Organic Compounds (VOCs) - 414 pounds
Naphtha - 100 gallons
Cause of Problem: Maintenance/Procedures

While cleaning the exchanger a piece of tubing blew out causing a release of naptha to the exchanger pad.
Residual naphtha was washed into the oily sewer. The exchanger was isolated.
115506

2009-06-06
Point Source(s):
unit 15

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

Pin hole leak in he unit 15 HGO hot separator overhead fin fan.
Reportable quantities were no exceeded so no information was given. Letter from the refinery not available.
115394

2009-06-01
Point Source(s):
Unit 15 HGO hydrotreater

Pollutant(s):
Hydrogen Sulfide - 20 pounds
Volatile Organic Compounds (VOCs) - 24 pounds
Ethane - 55 pounds
Highly Reactive Volatile Organic Compounds (HRVOCs) - 1 pounds
Cause of Problem: Equipment Failure

Pin-hole leak in unit 15's hot separator overhead fin fan.
Fin fan was blocked in and tube isolated.
115023

2009-05-16
Point Source(s):
Platformer Debutanizer Trim Cooler, #1 Cooling Tower EQI: 61a-74

Pollutant(s):
Methane - 1 pounds
Ethane - 37 pounds
Propane - 158 pounds
Isobutane - 102 pounds
n-Butane - 504 pounds
1-Pentene - 54 pounds
n-Pentane - 28 pounds
Volatile Organic Compounds - 1,780 pounds
Cause of Problem: Corrosion

A high LEL was found at the #1 cooling tower, operations started checking for leaks and found that the debutanizer overhead trim cooler, 12-1309, was leaking hydrocarbons into the cooling water. Leak caused by under deposit corrosion.
The debutanizer trim cooler was isolated and leaking tubing plugged.
No LDEQ Number Available

2009-04-20
Point Source(s):
dock

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

While preparing the dock arm for loading operations, the arm was found full of product. A small amount spilled out of the drip pan that was used to drain the product.
oil was cleaned up.
114098

2009-04-10
Point Source(s):
tank-500-8

Pollutant(s):
Oil - 36 pounds
Cause of Problem: Piping or Tubing

a leak was found in tank-500-8 de-watering line.
line was isolated and the site cleaned up.
113740

2009-03-26
Point Source(s):
tank-500-1

Pollutant(s):
Hydrocarbon - 500 pounds
Benzene - 4 pounds
Cause of Problem: Human Factors

There is a frac tank that drains tank-500-1 when it overflows, after drainage the valve that drains the tank was left open.
roof drain was blocked. another vacuum truck was called in to drain the tank, and on-site cleanup was started.
112752

2009-02-14
Point Source(s):
No information given
No information given.

Pollutant(s):
Methane - BRQ
Ethane - BRQ
Hydrogen - BRQ
Nitrogen - BRQ
Cause of Problem: No Information Given

No RQs were exceeded so no information is given
No RQs were exceeded so no information is given
112890

2009-01-23
Point Source(s):
flare
south flare

Pollutant(s):
Volatile Organic Compounds - 386 pounds
Nitrogen Oxide - 111 pounds
Carbon Monoxide - 607 pounds
Volatile Organic Compounds - 748 pounds
Hydrogen Sulfide - 89 pounds
Nitrogen Oxide - 1,032 pounds
Sulfur Dioxide - 33,375 pounds
Carbon Monoxide - 5,614 pounds
Cause of Problem: Seal or Gasket

A valve misalignment on the iso-butane pump allowed iso-butane to be routed to the flare for approximately six hours before being discovered. While troubleshooting the flaring incident, operations found the relief valve on th DHT unit's recycle gas scrubber "chatter" to the flare. during the investigation it was discovered that the newly installed valve had malfunctioned
none, the releases went unnoticed until later.
111750

2009-01-04
Point Source(s):
Tank 55-5 (Deasphalted Oil Storage Tank)

Pollutant(s):
Volatile Organic Compounds - 1,726 pounds
Cause of Problem: Start Up, Shut Down

During a Rose Unit shutdown, the Rose Unit Deasphalted Oil (DAO) battery limits block valve was open and caused a chain reaction of butane leakage and water flashes. 1,726lbs of butane were released.
the event was "over before any corrective action could be taken." and the event is currently "under investigation".
111745

2009-01-04
Point Source(s):
Unit 11

Pollutant(s):
Naphtha - 15 pounds
Cause of Problem: Seal or Gasket

A flash fire occurred when a valve above a bank of heat exchangers developed a leak in unit 11.
fire extinguished and heat exchanger blocked in. Also it was reported in the hazmat report that butane was a chemical identified during this accident occurrence. Unknown amount of butane release was not identified
80067

2005-06-25
Point Source(s):
no information given

Pollutant(s):
Slurry Oil - 5 pounds
Cause of Problem: Equipment Failure

Leaking clamp. No emission point source associated with it.
"The unit was shutdown to minimize the leak. Once shut sown the section of piping where the clamp was located was replaced prior to starting up the unit."