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Motiva Enterprises (2719), Convent

Causal Factor: Piping or Tubing

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

VPS 2 Flammable Gas release
Cause: Leak from an instrument tubing line on the VPS-2 Atmospheric Tower

Followup: No

Notes: Perimenter air monitoring shows zero. No offsite complaints.


Service water line in Plant 21 near the HGU process unit
Cause: Leak in service water line that eventually discharged into St. James Canal

Followup: No

Notes: Installation of a clamp over the leak. Storm water pond will be monitored during discharge.
Service Water: 980.0 gallons

Service Water Line in Plant 21 near the HGU process unit
Cause: -Leak in service water line that eventually discharges into St. James Canal

Followup: No

Notes: Installation of a clamp over the leak. Storm water pond will be monitored during discharge.
Service Water: 700.0 gallons

Service Water Line
Cause: Service water line developed a leak onto the ground which drains to storm water pond which eventually drains into the St. James Canal

Followup: No

Notes: A clamp will be installed on the leaking line. Storm water pond will be monitroed during discharge and is not expected to exceed any permit parameters.
Service Water: 900.0 gallons

Vacuum Pipestill Unit #2
Cause: "very small" atmospheric tower flash zone vapor leak in Vacuum Pipestill Unit #2 No LDEQ report in this file, hazmat and letter only

Followup: No

Notes: no information given


flare #2
Cause: piece of instrument air tubing failed causing a bypass control valve around a steam generator to close. Flow through the intermediate cycle gas oil circuit stopped, causing de-ethanizer tower to slump, increasing concentration of light material in the de-butanizer tower feed, increased pressure, causing flaring event

Followup: No

Notes: "unit charge rate and riser temperature were reduced immediately following the loss of heat medium into the de-ethanizer reboiler to minimize the loading to the debutanizer tower. The bypass around 2PDC-142 was opened to re-establish flow to the de-ethanizer reboiler."
Sulfur Dioxide: 1,756.0 pounds
Hydrogen Sulfide: 4.7 pounds
Volatile Organic Compounds (VOCs): 124.4 pounds
Particulate Matter 10: 11.4 pounds
Carbon Monoxide: 328.6 pounds
Nitrous Oxide: 60.4 pounds

Tank 37T 301
Cause: A plugged drain line became unplugged allowing the wastewater to flow

Followup: No

Notes: DEQ report states that release was BRQ
Oil: 0.2 gallons
No LDEQ Reported

No information given
Cause: a flange began leaking on a pipeline internal to the plant

Followup: No

Notes: Letters states the release was BRQ


HTU-1 Kerosene Reboiler (EPN 3F 404)
Cause: an unexpected heater tube rupture resulted in a fire at HTU-1

Followup: No

Notes: Motiva is thoroughly inspecting the heater and other affected equipment and will make necessary repairs prior to restarting the heater and process unit. Will re-evaluate inspection frequencies, preventive maintenance frequencies, operating limits and associated procedures, and make necessary changes to help prevent recurrenc
Particulate Matter: 31.0 pounds
Sulfur Dioxide: 264.0 pounds
Nitrogen Dioxide: 188.0 pounds
Carbon Monoxide: 47.0 pounds
Volatile Organic Compounds (VOCs): 2.0 pounds

Drain hub at base of Flare 3
Cause: a plugged sewer line impeded proper drainage and caused the overflow of a drain hub

Followup: Yes

Notes: The following measures are being put in place to prevent a recurrence. 1) A secondary containment system is being installed around the drain hub; 2) The area surrounding the base of the flare is being graded to improve surface drainage; and 3) the operating procedure is being revised to include two (rather than one) operator while draining the flare tip molecular seal - one operator will operate the control valve while the other visually verifies proper drainage to the hub.
Sewer Sludge: 2,800.0 pounds
Sewer Sediment: 15.0 pounds

Underground Process Sewer along the Plant 21 Pipeway
Cause: process sewer and hub appear to have belowground piping and/or pipe seal structural integrity deterioration

Followup: No

Notes: Motiva has planned to itnernally clean, inspect, and provide adequate containment for the section of process sewer and hub to prevent a recurrenc
Slop Oil: 210.0 gallons

VPS-1 Unit
Cause: . Line ruptures: Leaking bleeder on VPS-1 Unit

Followup: No

Notes: Letter states that emissions were BRQ


001 Outfall
Cause: a main wastewater line ruptures following a repair on a small line

Followup: Yes

Notes: Massive process water release (872,000 gallons). Motiva submits lengthy incident report (~50 pp.) a
Benzene: 9.0 pounds
Oil and Grease: 93.0 pounds
No LDEQ Reported

Dock No 1
Cause: Firewater Pump on Dock 1 developed a leak in the upper part of the Turbo Lubricating Tube.

Followup: No

Notes: Pump leak repaired on1/14/08; personnel monitored the pump and containment and used spill pads to ensure that there was no additional leakage; secondary containment in the process of being repaired
Heavy Distillate: 8.0 gallons


Cause: "tubing to the instrument broke and releasing H2 and H2S."


Notes: No information given.


unspecified pipeline
Cause: LDEQ report states that "crude line had a leak. An out of service tank water draw down line leaked an oil/water mixture."

Followup: No

Notes: "Area was diked, vacuum trucks removed liquid, contaminated soil was removed for disposal. Line to be blinded and isolated." No additional information given. LDEQ report only. No refinery letter in file.


unspecified piping
Cause: Pinhole leak in 8" pipe in a pipe rack.

Followup: No

Notes: Will clamp and remove pipe, liquid vacuumed, impact area isolated, soil will be excavated, profiled, and disposed. LDEQ report only. No refinery letter.
Naphtha: 84.0 gallons

No Information Given
Cause: "Hole in a process line in a crude unit." Flammable gas noted but no info given as to what chemicals were released.

Followup: No

Notes: No information given regarding remedial actions. State Police Hazmat report only. No LDEQ or refinery report in file.
Flammable Gas: 1,000.0 pounds

unspecified hydrogen pipe
Cause: Hydrogen pipe leaked and caught fire. State Police Hazmat report states that material did go offsite. FIRE.

Followup: No

Notes: Fire extinguished by on-site personnel, leak secured, air monitors at perimeter of facility read zero. State Police Hazmat report only. No LDEQ or refinery letter in file.


No Information Given
Cause: A pinhole leak in line resulted in an oil release.

Followup: No

Notes: No information given for remedial action. Motiva states that mostly water was leaked and a RQ exceedence was not reached. LDEQ only no Refinery Letter included.


Isolation valve
Cause: While working on the Alky splitter tower reflux pump, the technician loosened screws from a mounting plate connected to a pressure gauge. The tubing connection located upstream of the isolation valve failed and released hydrocarbon. The initial report from the facility stated that 178 pounds of propylene were released when a 1/2 inch tubing broke a reflux pump, but the release was later determined to be below reportable quantity.

Followup: No

Notes: No information given about remedial actions taken. The refinery letter stated that the incident was not reportable, and no injuries, fatalities, or road closures were associated with this incident.
Propylene: 88.6 pounds
No LDEQ Reported

None Reported
Cause: On November 24, 2013, Motiva reported a small fire that occured at Motiva's Fluidized Catalytic Cracking Unit in the Main Fractionator Column. After the fire was put out, they discovered a leak on the Top Reflux draw line. They believe this leak caused the fire. Incident duration was approximately 4h.

Followup: No

Notes: After a safety plan was developed, the Top Reflux line was isolated. No injuries occurred. The incident was initially reported as potential Reportable Quantity exceedance. However, during the event, no release exceeding an RQ occurred.

H-Oil F-202 reactor
Cause: There was a release of hydrogen sulfide on October 6, 2013 due to damaged tubing in the F-202 reactor in the H-Oil unit. Initially, a potential hydrogen sulfide release was reported in exceedance of the 100 pound reportable quantity, but after further evaluation, the total hydrogen sulfide emissions were below reportable quantity.

Followup: No



plant pipeway
Cause: Release of 121.8 gallons of Heavy Cycle Gas Oil (HCGO) resulted when a leak developed in a previously installed clamp in a plant pipeway. The release point was not subject to permit. Inspection was conducted by the Louisiana Department of Environmental Quality (LDEQ) on 8/24/14.

Followup: No

Notes: Oil was contained on site, recovered using vacuum trucks and reprocessed in the refinery's recovered oil system. A drip pan and absorbent pads were deployed to contain and absorb the leak. The leak was isolated and stopped and the line is currently being prepared for maintenance. The High-cycle gas oil was contained/recovered on site. Residual oil staining remaining on the vegetation and ground surface was excavated and removed until oil was no longer visible. Oil in contact with the ground was confined to the surface with no impact below a couple of inches. All oil-stained soils, PPE, and other contaminated materials were properly containerized for disposal. Bioremediation bagasse pads were deployed to treat any remaining material. The clamp and leaking section of pipe will be replaced with a new pipe stool.
Heavy Cycle Gas Oil: 121.8 gallons