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Motiva Enterprises (2719), Convent
Releases in 2006
| LDEQ Accident Number Accident Date |
Point Source/Release | Cause | Notes |
| 92480 2006-12-08 | Point Source(s): flare Pollutant(s):Nitrous Oxide - BRQ | Cause of Problem: No Information Given Nitrogen oxide resulting from flaring off the H-Oil PSA skid brief Motiva letter only in this file, no LDEQ report RQ not exceeded | no information given |
| 92328 2006-11-28 | Point Source(s): Cooling Tower Pollutant(s):Water - 2,400 gallons | Cause of Problem: Maintenance/Procedures One cell of a cooling tower was isolated for maintenance and a second cell could not manage the full additional flow, spilling non-contact cooling water which then entered the in-plant stormwater system. No permit limits exceeded. | will review event to determine how to prevent a recurrence |
| 91552 2006-10-22 | Point Source(s): Tank 20D-12 Pollutant(s):Light Catalytic Reformed Naphtha (LCR) - 168 gallons Benzene - 855 pounds Hexane - 1,574 pounds Xylene - 342 pounds | Cause of Problem: Weather Floating roof on Tank 20D-12 partially collapsed into the hydrocarbon product during heavy rains, releasing product to ground via the roof drain and into air via evaporation. Exceeded RQs. No LDEQ report in this file--hazmat and two letters. | discontinued product transfers to and from tank and began preparations to remove product from the floating roof and the tank. |
| 91502 2006-10-19 | Point Source(s): Outfall 001 Pollutant(s):Stormwater - 5,000 gallons | Cause of Problem: Weather Heavy rains during the week of 10/19 caused Motiva to bypass final pressure and sand filters of the Process Wastewater Treatment Unit (WWTU) to alleviate flooding of facility. Inactive MTBE/TAME Process Unit was overwhelmed with stormwater and flooded. Sampling of water showed no permit limits were exceeded. Dates on this incident are confusing; the two letters detail different flooding problems from the same storm, and one letter is dated 2005 but looks like it should be 2006. LDEQ report states "letter states SPOC notified of bypass 10/19/05, bypassing occurred 9/24/05. These dates are wrong" and that they contacted someone for a corrected letter. | no information given |
| 91488 2006-10-18 | Point Source(s): no information given Pollutant(s):Gas Oil - 126 gallons | Cause of Problem: Weather Gas oil released from process unit sewer due to heavy rain--permitted outfall to onsite pond. | no information given |
| 91442 2006-10-17 | Point Source(s): TGTU no. 1 incinerator stack and TGTU no. 4 incinerator stack Pollutant(s):Sulfur Dioxide - 795 pounds | Cause of Problem: Equipment Failure Sulfur Recovery Unit (SRU) No. 5 tripped due to low airflow, which was caused by the trip of the turbine air blower (81C-101) on SRU-5. This subsequently causde TGTU-5 to trip, as these two units operate in series. With the trip of SRU-5/TGTU-5, acid gas processing ability decreased causing a subsequent increase in pressure on the acid gas header. This increase in pressure led to the trip of SRU-2/TGTU-1. The turbine air blower was determined to have tripped as designed due to excessive vibration from a mechanical failure in the turbine's speed governor. | Minimized acid gas production by reducing charge rates, worked to restart units. Motiva plans to evaluate the process rate reductions needed from the acid gas generating units when upset conditions occur in the SRU/TGTU units in an attempt to reduce the potential for SO2 emissions from overloading the operating SRU/TGTU units. Motiva also plans to install a "Stackmatch" system in TGTU-1 during a 2008 Maintenance turnaround to reduce the delays associated with the lighting of the heater inline pilot. No LDEQ report in this file. Exceeded RQs and permit limits. |
| 91477 2006-10-10 | Point Source(s): Vacuum Pipestill Unit #2 Pollutant(s):Gas Oil - BRQ | Cause of Problem: Piping or Tubing "very small" atmospheric tower flash zone vapor leak in Vacuum Pipestill Unit #2 No LDEQ report in this file, hazmat and letter only | no information given |
| 89694 2006-08-02 | Point Source(s): wastewater treatment unit Pollutant(s):Sludge - 630 gallons Nickel - BRQ | Cause of Problem: No Information Given "problems with hose connection" while moving sludge water from diversion tank into a waste bin, spilled to concrete slab and soil | no information given |
| 89059 2006-07-06 | Point Source(s): oil recycle gas compressor Pollutant(s):Hydrogen - BRQ | Cause of Problem: No Information Given "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 | no information given |
| 88564 2006-06-13 | Point Source(s): flare #2 Pollutant(s):Sulfur Dioxide - 1,756 pounds Hydrogen Sulfide - 5 pounds Volatile Organic Compounds (VOCs) - 124 pounds Particulate Matter 10 - 11 pounds Carbon Monoxide - 329 pounds Nitrous Oxide - 60 pounds | Cause of Problem: Piping or Tubing 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 | "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." |
| 88596 2006-06-13 | Point Source(s): line from tank farm to VPS-2 unit Pollutant(s):Gas Oil - 126 gallons | Cause of Problem: Seal or Gasket Gasket failure on gas oil line going from the tank farm to the vacuum pipestills-2 (VPS-2) unit. | spilled material recovered with vacuum truck, soil scraped. Gasket changed and line put back in service. |
| 88561 2006-06-12 | Point Source(s): flare Pollutant(s):Sulfur Dioxide - 2,000 pounds | Cause of Problem: No Information Given 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. | no information given |
| 88372 2006-06-06 | Point Source(s): line at metering station at West Tank Farm Pollutant(s):Crude Oil - 126 gallons | Cause of Problem: Corrosion Leak developed in a dead leg in a line in the West Tank Farm at a metering station, which caused crude oil to spill on the soil and concrete surface. Exceeded RQ. | Shut down incoming pipeline, isolated line, deployed booms and placed 5gal bucket under leak, cleaned with vacuum truck, removed contaminated soil, repaired line. "This incident occurred at an interface between equipment owned and operated by Shell Pipeline and Motiva. Motiva will implement a 'bridging document' between Shell Pipeline and Motiva that will clearly identify accountabilities and responsibilities for inspection and maintenance of this interface." |
| 88309 2006-06-04 | Point Source(s): MTBE tank #1 Pollutant(s):Flammable Gas - BRQ | Cause of Problem: Equipment Failure Had trouble with pumps while trying to empty & clean MTBE (methyl tert-butyl ether) Tank No. 1. Roof was off float, creating emissions from "breathing losses." Exceeded hourly emission limits but not RQ for 24hr period. Ongoing for a few days but not clear exactly how long. Had to get temporary variance permit to deal with it--granted on 6/9/06. No LDEQ report in this file--hazmat and two letters. | "Mechanical problems are currently preventing Motiva from bringing the tank back on float. Motiva will bring the tank back on float after necessary maintenance work is completed." |
| 87541 2006-05-01 | Point Source(s): near Old Bundle Cleaning Slab Pollutant(s):Primary Separation Sludge - 17 pounds | Cause of Problem: Human Factors Contractor spilled hazardous waste while trying to move a vacuum box which was not properly closed onto a truck parked on an uneven surface. | Met with contractors to review checklists for boxes and training requirements for all employees who haul hazardous waste. Asked contractors to review report & training with employees. |
| 87435 2006-04-26 | Point Source(s): no information given Pollutant(s):Aviation Fuel - 714 gallons | Cause of Problem: Weather Leaking avjet (aviation jet fuel) filters were replaced due to a leak, old ones placed in a dumpster with an open top, new ones not used until the next day. Dumpster overfilled and leaked during heavy rain; new filters leaked avjet into a catch basin and sprayed into shell area. One bbl spilled to shelled area, one bbl to nearby ditch, 15 bbls to a catch basin. | Vacuum truck used to clean up spill to ditch and catch basin, contaminated soil removed. "The dumpster will have a lid in the future and taken to appropriate waste slab after the job is complete. Personnel will be instructed on the proper installation of "O" ring around the lid of the canister. |
| 87052 2006-04-06 | Point Source(s): hydrotreating unit no. 2 Pollutant(s):Hydrogen - 3 pounds | Cause of Problem: Equipment Failure Fire due to hydrogen leaking from a heat exchanger at hydrotreating unit no. 2. No LDEQ report in this file. | "personnel immediately extinguished the fire" |
| 86809 2006-03-28 | Point Source(s): truck fuel tank Pollutant(s):Diesel Fuel - 50 gallons | Cause of Problem: Human Factors Truck driver hit a pole after delivering to Motiva, rupturing a saddle fuel tank and spilling 50 gal diesel fuel; 6 gal got into storm drain. Report letter from Schwerman Trucking Co. not Motiva. | spill recovered with absorbents, blocked off storm drain line, vacuum truck recovered 6gal that got into storm drain, contaminated crushed shells and dirt along roadway removed and replaced with clean ones. |
| 86521 2006-03-16 | Point Source(s): FCCU PRT Stack Pollutant(s):Carbon Dioxide - BRQ | Cause of Problem: No Information Given No information given | 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 |
| 85774 2006-02-13 | Point Source(s): Flare No. 2 EIQ No. 19AH-901 Pollutant(s):Sulfur Dioxide - 94,211 pounds Hydrogen Sulfide - 252 pounds Nitrogen Oxide - 1,747 pounds | Cause of Problem: Start Up, Shut Down FCCU Wet Gas compressor shut down due to gas turbine overspeed. The servo has been sent out to identify the cause of failur | The servo valve was replaced and the unit restarted. [Follow-up report to telephone report on 2/13/06] |
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