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Motiva Enterprises (2719), Convent
Causal Factor: No Information Given
| LDEQ Accident Number Accident Date |
Point Source(s) | Notes | Amount of Release |
| 84733 2005-12-22 | Vacuum Pipestill Unit #2 | Cause: No Information Given Followup: No Notes: Leak was contained within the unit and routed to oily-water sewer (DOW) so no kerosene was released to soil or water. The volume of kerosene leaked and the subsequent air emissions were calculated and found to be less than 100-pounds (lbs) for each compound, xylene (10 lbs) and naphthalene (15 lbs). Therefore, the 100-pound RQs for both constituents were not exceeded. Additionally, the 1,000-lb LSP flammable material RQ was not exceeded, as 140 lbs of flammable VOC was emitted to the atmosphere. | Xylene: 10.0 pounds Naphthalene: 15.0 pounds Flammable Volatile Organic Compounds: 140.0 pounds |
| 80774 2005-07-24 | TGTU-4 Stack Plume | Cause: No information given Followup: No Notes: None | |
| 79188 2005-05-18 | A stack on the TGTU-4 | Cause: No information given Followup: No Notes: Originally reported on telephone as excess emissions of Sulfur Dioxide. Follow up report: RQ not exceeded. | |
| 83847 2005-05-18 | HTU-1 Heat Exchanger | Cause: No Information Given Followup: No Notes: Courtesy notice. | |
| 78883 2005-05-07 | Valve in the H-Oil Unit and associated Flares | Cause: see notes. Vaccum residuum and gas oil release form valve in H-Oil Unit Followup: No Notes: The liquid hydrocarbon released was contained in the unit's concrete slab and did not reach the soil outside of the unit. The flaring related to the incident will continue until the unit has been safely restarted. | |
| 79076 2005-04-14 | Trip of a recycle gas compressor in the H-Oil Unit and resulting flares | Cause: No information given Followup: No Notes: Courtesy notice. | |
| 77108 2005-02-22 | Nearby washing area | Cause: No information given Followup: No Notes: Originally reported as F-037 Primary Spearation Sludge | Runoff of Rust Colored Water: 10.0 pounds |
| 92480 2006-12-08 | flare | Cause: Nitrogen oxide resulting from flaring off the H-Oil PSA skid
brief Motiva letter only in this file, no LDEQ report
RQ not exceeded Followup: No Notes: no information given | |
| 89694 2006-08-02 | wastewater treatment unit | Cause: "problems with hose connection" while moving sludge water from diversion tank into a waste bin, spilled to concrete slab and soil Followup: No Notes: no information given | Sludge: 630.0 gallons |
| 89059 2006-07-06 | oil recycle gas compressor | Cause: "small hydrogen leak" on H-Oil Unit Recycle Gas Compressor 70-C-101
No RQ exceeded
No LDEQ report in this file--brief letter only Followup: No Notes: no information given | |
| 88561 2006-06-12 | flare | Cause: Flare in excess of RQ--"tail gas unit did not get the gas before it was flared as is the normal process"--no other details, hazmat report only in this file. Followup: No Notes: no information given | Sulfur Dioxide: 2,000.0 pounds |
| 86521 2006-03-16 | FCCU PRT Stack | Cause: No information given Followup: No Information Provided Notes: Although this incident resulted in an exceedance of the NSPS J part per million limit and the part per hour limit on a 12 hour rolling basis of CO, the permitted emission limit was not exceeded. [This report is a written follow-up report of telephone report on 3/16/0 | |
| No LDEQ Reported 2007-12-21 | HGU WWTU Flare EPN 85D-105 | Cause: see notes. Flame outage on flare causes release. Followup: No Notes: Under investigation - no remedial actions specified | |
| 94903 2007-03-27 | No information given | Cause: No information given Followup: Yes Notes: Letter states that RQ's were exceeded. More information to be provided in follow-up report. | |
| 94606 2007-03-14 | H-Oil Resid Charge Pumps | Cause: No information given Followup: No Notes: Letter states that no RQ's were exceeded and all releases occurred on-site. | |
| 109411 2008-09-20 | Flares | Cause: No information given Followup: No Notes: Letter states that emissions were BRQ. | |
| 108218 2008-08-21 | Tank 20D-19 Mixer | Cause: No information given Followup: No Notes: Letter states that emission were BRQ. Initial reports stated that approximately 2 barrels of gasoline were leaked to the ground. | |
| 102852 2008-02-05 | No information given | Cause: No information given Followup: Yes Notes: No info on point source or specific amt released | >RQ |
| 119917 2009-12-08 | no information given | Cause: Alarm system indicated CO emissions were above permitted per hour levels.
No further info--hazmat report only in this file. Followup: No Notes: No information given. Verbal report only, no letter from Motiva. | |
| 119343 2009-11-05 | Tail Gas Treating Unit #4 | Cause: "pluming event" in excess of permitted limits Followup: Yes Notes: No Information Given | |
| 119319 2009-11-03 | Refinery Flare #4 | Cause: Flame outage on flare--air permit deviation--no details.
No RQs exceeded. Followup: Yes Notes: | |
| 118650 2009-10-12 | HTU no. 3 | Cause: Sight glass on a vessel blew out.
State police hazmat report only. Followup: No Notes: No info given. Verbal report only, no letter from the refinery or LDEQ. | |
| 117554 2009-08-22 | FCCU wet gas scrubber stack | Cause: NOX emissions in excess of maximum emission rate during start-up of Fluid catalytic Cracking Unit Wet Gas Scrubber Stack after a subsequent trip on 8/17/09--related to use of platinum promoter in addition to catalyst to maintain temperatures inside the FCCU regenerator within equipment metallurgical limits.
Did not exceed reportable quantities. Followup: Yes Notes: no info given | |
| 113193 2009-03-06 | No Information Given | Cause: Trip of the HGU Torvex unit. Followup: No Notes: N/A | |
| 126812 2010-09-21 | VPS-2 Atmospheric Feed Heater (EPN 83H-101) | Cause: During shutdown of ARU-1 Train 2 for maintenance activities, refinery experienced an increase in H2S entering waste gas system. Mixed with refinery fuel gas and low steam ratio resulted in H2S concentration exceedance. Letter states that this was an apparent exceedance of H2s emission standard in Permit No 2560-00001-V8. Followup: No Notes: Refinery operators increased steam to ARU-1 and exceedance ceased. No information given regarding the amount released/exceeded. | |
| 133797 2011-09-03 | Terminal Drain | Cause: Motiva Truck Terminal drained backed up outside of the fence and overflowed Hydrocarbon gas, [Liquefied] "oil" into the refinery. No information given about what caused drain to overflow and release oil. Followup: No Notes: Motiva states that "Boom was deployed and the Hydrocarbon gas, [Liquified] "oil" remained on the refinery site until it was vacuumed out". No injuries were reported and no offsite impact occurred according to Motiva. No refinery letter included. | Hydrocarbon: 210.0 gallons |
| 130716 2011-04-15 | Steam Boiler | Cause: LDEQ states that steam boiler was shut down due to excessive noise. Followup: No Notes: Steam boiler was shut down. LDEQ included. No Refinery Letter. | |
| 130985 2011-04-03 | Sulfur Recovery Unit | Cause: No Information Given. Followup: No Notes: This report is a written follow up to the courtesy call made on 4/3/11 concerning the release of sulfur dioxide on Convent's Sulfur Recovery Unit. The incident was initially reported to the LA State Police as a potential RQ exceedance based on limited information available at the time. Calculations performed reveal no reportable quantities were exceeded. | |
| 145221 2012-12-06 | Sump pump | Cause: A sump located at the refinery's laboratory overflowed to the ground and then into a nearby ditch. The incident was caused by a sump overflow. Followup: No Notes: The free oil was contained in the on-site ditch using containment booming. A vacuum truck was then used to clean the oil from the ditch. Immediate actions were taken to reduce levels in the laboratory sump. Oil that had collected in the ditch was contained with booms and recovered using a vacuum truck. There was no free oil or sheen discharged off-site. The incident was caused by a sump overflow. The maintenance department is investigating the sump system and possible restrictions in the discharge piping, which potentially caused the high level in the sump. | Oil: 50.0 gallons |
| 143440 2012-09-29 | Cause: Excess gas released to the flare. Followup: No Notes: s12-17286 Excess gas was flared, causing a release of sulfur dioxide. Approximately 1075 lbs of S02 was released- excess gas released to flare. No air monitoring was performed by the facility. They claim that everything has been secured. Verbal report only. Unable to find the refinery letter. Even though the facility did not classify the incident as above reportable quantity, the sulfur dioxide release exceeded RQ by 575 lbs. The reportable quantity for Sulfur dioxide is 500 lbs and the facility released 1075 lbs of S02. | Sulfur Dioxide: 1,075.0 pounds | |
| 152757 2013-12-06 | West Side Fuel Gas Drum | Cause: On December 6, 2013, a sulfur dioxide release due to elevated hydrogen sulfide in the West Side Fuel Gas Drum. Followup: No Notes: This incident was initially reported as a potential exceedance of the 500-lb reportable quantity for sulfur dioxide. After further calculation, the total sulfur dioxide emissions from this incident were not above the reportable quantity. | |
| 151708 2013-10-17 | No Information Given | Cause: On October 17, 2013, there was a mixed butane leak at the Sorrento Off-Site Storage Caverns Facility. The incident was initially reported as a potential exceedance of a Reportable Quantity (RQ). After further calculation, the total emissions from this incident were not above the RQ. Followup: No Notes: | |
| 147500 2013-03-22 | TGTU-1 and TGTU-4 | Cause: Sulfur dioxide was released from the Tail Gas Treatment Units No. 1 and No. 4 (TGTU-1 and TGTU-4). No reportable quantities were exceeded. No additional information was provided regarding the cause of problem or remedial actions taken. Followup: Yes Notes: | |
| No LDEQ Reported 2014-03-18 | Flare Gas Recovery Area | Cause: On March 18, 2014, Motiva Enterprises, LLC Convent Refinery (Motiva) reported an upset of the Flare Gas Recovery Area that caused emissions of sulfur dioxide (SO2) from flaring of hydrocarbons containing sulfur compounds. The incident was initially reported as a potential exceedance of the 500-lb Reportable Quantity for sulfur dioxide. This report states that sulfur dioxide emissions were not above reportable quantities. Followup: No Notes: | |
| 153590 2014-01-28 | Flare Gas Recovery Area | Cause: On January 28, 2014, Motiva Enterprises, LLC Convent Refinery (Motiva) reported an upset of the Flare Gas Recovery Area that caused emissions of sulfur dioxide (SO2) from flaring of hydrocarbons containing sulfur compounds. Followup: No Notes: Motiva submitted on that the accident did not result in the exceedance of reportable quantity for SO2. | |
| 153688 2014-01-25 | Cause: On January 25, 2014, Motiva Enterprises, LLC Convent Refinery (Motiva) reported an upset of the FCCU that caused emissions of sulfur dioxide (SO2) from the combustion and flaring of hydrocarbons containing sulfur compounds. Followup: No Notes: Motiva submitted a letter on 1/31/2014 stating that reportable quantity for SO2 was not exceeded. | ||
| 153515 2014-01-22 | Alky Unit | Cause: On January 22, 2014 Motiva Enterprises LLC (Motiva) Convent Refinery reported a release with injury due to sulfuric acid leak on the Alky Unit. Motiva reported the incident as per LAC 33:V.10111. B as it was unknown at the time of the even if the injured personnel would require emergency treatment. However, the injured person was assessed by Motiva Medical and received first-aid treatment only.
The incident did not constitute an emergency condition as per LAC 33:I.3195 or as defined in LAC 33:I.3905, as it did not endanger the health and safety of the public, cause significant adverse impact to the land, water or air environment, or cause severe damage to property.
The release of sulfuric acid did include some entrained hydrocarbons, was contained within secondary containment (the unit containment system). The entrained hydrocarbons included C3 through C8 hydrocarbons; however, based on process engineering calculations, there was no reportable quantity release of the hydrocarbons. Therefore the release was not an unauthorized discharge exceeding a reportable quantity as per LAC 33:I.3917. Followup: No Notes: Motiva's report states that the release of sulfuric acid was contained within the unit containment system. The report also refers to a previous report regarding the worker's injury which was not included in this documentation. There is no detail as to how and why the accident occurred and how it could be prevented in the future nor how the spillage in the unit containment system was disposed of. The spill is recorded as below reportable quantity yet there was still enough to cause worker injury. |
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