CSB Deploys Investigation Team to Fatal Blast at Tesoro Refinery

The U.S. Chemical Safety Board has deployed a four-member investigation team to the Tesoro refinery in Anacortes, Wash., following an April 2 explosion and fire at the plant’s naphtha hydrotreater unit. Five workers were reported to be killed from the blast and two remain hospitalized for burns.

Currently, the board is investigating an October 2009 flash fire at a Tesoro refinery in Salt Lake City that occurred when flammable liquid overfilled a flare stack and ignited.

CSB Chairman and CEO John Bresland said, “The CSB has 18 ongoing investigations. Of those, seven of these accidents occurred at refineries across the country. This is a significant and disturbing trend that the refining industry needs to address immediately.”

Robert Hall, PE, CSB Investigations supervisor, and William B. Wark, CSB board member, are part of the investigation team.

Bresland said the large-scale deployment to Washington will further complicate efforts to complete other important cases, including CSB’s investigations of the Caribbean Petroleum fuel terminal fire near San Juan, Puerto Rico; the CITGO refinery hydrogen fluoride release and fire in Corpus Christi, Texas; the Goodyear heat exchanger rupture and ammonia release in Houston; and the Exxon Mobil refinery hydrogen fluoride release in Joliet, Ill.

Tesoro Corp. is an independent refiner and marketer of petroleum products, and, through its subsidiaries, operates seven refineries in the western U.S.

Visit CSB’s Web site, www.csb.gov, for more information.

Tesoro’s Web site: www.tsocorp.com/TSOCORP/index.htm.

Product Showcase

  • Full Line of Defense Against Combustible Dust Nilfisk

    Nilfisk provides a comprehensive range of industrial vacuums meticulously crafted to adhere to NFPA 652 housekeeping standards, essential for gathering combustible dust in Class I, Group D, and Class II, Groups E, F & G environments or non-classified settings. Our pneumatic vacuums are meticulously engineered to fulfill safety criteria for deployment in hazardous surroundings. Leveraging advanced filtration technology, Nilfisk ensures the secure capture of combustible materials scattered throughout your facility, ranging from fuels, solvents, and metal dust to flour, sugar, and pharmaceutical powders. 3

  • SwabTek® Cannabis Test Kit

    The SwabTek® Cannabis Test Kit is a single-use spot test designed for use in screening for cannabis compounds in any sample type or on any surface. The test is capable of identifying the presumed presence of cannabinoids in very small quantities, with a level of detection as little as 6 μg in mass. Learn more about the SwabTek® Cannabis Test Kit and the rest of SwabTek surface drug testing solutions through the webinar titled "Everything You Want To Know About Surface Testing" 3

  • Matrix's OmniPro Vision AI Collision Avoidance System

    OmniPro Vision AI is a state-of-the-art collision avoidance system that features NIOSH award-winning Visual Artificial Intelligence (AI) technology. This highly accurate, powerful system identifies and alerts on pedestrians, vehicles and specified objects, ensuring safer facilities, mining operations and industrial sites. With its web-based cloud application, OmniPro Vision AI also logs and analyzes a wide range of data related to zone breach notifications. Operating without needing personal wearable devices or tags, OmniPro has visual and audible zone breach alerts for both operators and pedestrians. 3

Featured