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CITGO Petroleum (1250), Lake Charles

Releases of Slop Oil

LDEQ Accident Number
Accident Date		 Point Source(s) Notes Amount of Release
82492

2005-09-22		Unicracker; C-FCCU
Unicracker; C-FCCU; B-5 FLARE; B6 FLARE; B7 FLARE
Multiple Units
B-5 FLARE; B6 FLARE; B7 FLARE
CLAW sewer
B 104 FLARE
A Topper; B Topper; Coker II; C FCCU
Coker I, C Sulfur Recovery Unit; B Sour Water Stripper
Tank 504
E Sulfur Recovery
A Sulfur recovery Unit; B Sour Water Stripper; Unicracker
Unicracker
Unicracker; D Sulfur Recovery Unit
Cause: Shut down and start up from Hurrican Rita

Followup: Yes

Notes: Summary of releases over 31 days		5,391.0 pounds
78701

2005-05-03		Wastewater Treatment Plant
Cause: while placing a line back into service athte h Wastewater Treatment Plant a relief valve overpressured and released oil to ground and surrounding ditches

Followup: Yes

Notes: 5 gallons went into the Indian Marais. Booms, absorbent pads, vacuum tru		630.0 gallons
78328

2005-04-18		Slop Oil Line
Cause: flange leak on 8 inch slop oil line due to failed gasket

Followup: No

Notes: Gasket was replaced		5,555.0 pounds
99280

2007-09-07		Outfall 006
Cause: see notes

Followup: No

Notes: A pinhole leak was discovered on a 3 inch slop oil line upstream of the 006 slide valve structure. Leak was isolated and repaired. Slop oil spilled on soil, heavy rains produced a slight sheen at 006. Booms, absorbent pads and vacuum truck were deployedto contain the sheen. >30 gallons emitted according to Verbal Report. DEQ report attached to CITGO letter indicates that 190 lbs were release		190.0 pounds
108133

2008-08-17		Tank 213
Cause: leak from the slop oil line near Tank 213

Followup: No

Notes: Leaking flange isolated		953.0 gallons
107976

2008-08-13		C-Dock
Cause: malfunction of automatic sump level indicator gauge results in sump overflow

Followup: No

Notes: Sump level indicators repaired		3.0 pounds
106827

2008-06-30		Unicracker Unit
Cause: flange leak

Followup: No

Notes: Pipeline flange was inspected and repaired		84.0 gallons
103292

2008-02-21		CLAW 650 Transfer Pipeline
Cause: leaking flange on the CLAW 650 Transfer Pipeline

Followup: Yes

Notes: Pipeline taken out of service and repaired		25.0 gallons
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.		83,748.0 gallons
122095

2010-03-12		Sheet Pile Wall
Cause: DEQ report states, "approximately 3-5 gallons of emulsified slop oil washed through the lifting holes in the sheet pilings that separates the lagoon from the ship channel. According to Diana LeBlanc (Environmental Engineer) with Citgo, the oil was released from the bottom of the lagoon when Morrison surveyors were profiling the bottom of the lagoon." High winds caused oil to be driven from the surface of the Indian Marais Lagoon, to the sheet pile wall where it escaped into the Calcasieu River.

Followup: No

Notes: Report states that "Citgo immediately deployed hard and absorbent booms to capture the oil on both sides of the sheet pilings. The water level was pumped down by Citgo and sent to the wastewater treatment area to prevent any additional spillage from the lagoon. ES&H was contracted by Citgo to assist in boom deployment and cleanup. Ms. LeBlanc said that written notification would be forthcoming when the investigation was complete."		3.0 gallons
134192

2011-09-27		Tank 37
Cause: A top suction valve at pumping tank 37 was cracked open allowing slop oil to move to the ground.

Followup: No

Notes: BRQ. Vacuum trucks were on the scene following the initial release.
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.		2,016.0 gallons
136840

2012-01-30		flange on the slop oil line
Cause: The flange on the slop oil line for the OMB Slop Transfer System separated releasing slop oil to the ground.

Followup: No

Notes: Vacuum trucks were used to clean up the oil. Stated that they would file a follow up report but none was included in the LDEQ report.		210.0 gallons