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ExxonMobil Refinery (2638), Baton Rouge

Releases of o-Xylene

LDEQ Accident Number
Accident Date		 Point Source(s) Notes Amount of Release
90043

2006-08-16		E-205 A/B exchanger bank on the Heavy Cat Naptha Unit
Cause: the E-205 A/B exchanger bank on the Heavy Cat Naptha Unit was leaking to Cooling Tower #27. The leak is believed to be from corrosion on the tube bundle.

Followup: No

Notes: This incident was not preventable because the inspection data for this bank of exchangers did not indicate that a failure was imminent. These bundles were tested in January 2005 and were found to have no leaks. Remedial Measures - the exchanger bundle will be inspected and repaired or replaced as appropriate. The reportable quantities for benzene, toluene, naphthalene, volatile organic compounds, xylene mixed isomers, and o-xylene were exceeded. It is possible that the reportable quantities forylene and p-xylene were also exceeded, but available stream specification data does not allow differentiation between the these two isomers		681.0 pounds
89635

2006-08-01		E-205 C/D exchanger bank on the Heavy Cat Naptha Unit
Cause: the E-205 C/D exchanger bank on the Heavy Cat Naptha unit was leaking to Cooling Tower #27. The leak is believed to be from corrosion on the tube bundle.

Followup: No

Notes: This incident was not preventable because the inspection data for this bank of exchangers did not indicate that a failure was imminent. These bundles were tested in January 2005 and were found to have no leaks. Remedial Measures - the exchanger bundle will be inspected and repaired or replaced as appropriate. The reportable quantities for xylene, benzene, toluene, naphthalene, and volatile organic compounds were all exceeded		311.0 pounds
99493

2007-09-16		Spill
Cause: Incomplete weld on #1 PHLA Line

Followup: No

Notes: Once identified line was removed from service andleak was clamped to stop release. Line will be re routed in overhead pipeband.		675.0 pounds
99493

2007-09-16		Spill
Cause: Incomplete weld on #1 PHLA Line

Followup: No

Notes: Once identified line was removed from service andleak was clamped to stop release. Line will be re routed in overhead pipeband.		675.0 pounds
107363

2008-07-18		Spill/suction line
Cause: Leaking oil was caused by an improperly installed blind on a common suction line used for mixing gasoline components.

Followup: No

Notes: A vacuum truck immediately began to pick up the pooled oil. The blind was reinstalled and other installations for the same mechanical work were checked. Contaminated soil removed. The LDEQ reportable quantity for oil to soil (1 barrel) was exceeded and the RQ for Benzene (10 lbs) was also exceeded. Amount of Light Cat Naptha released was 11.3 barrels and amount of benzene released was 31.7 pounds.		29.3 pounds