Chemical Plant & Refinery Explosion Lawsuits

• The Kuraray America Plant Explosion – Texas

  On May 19, 2018, the Kuraray America Plant in Pasadena, Texas, experienced a devastating explosion that had far-reaching consequences for both the facility and the surrounding area. The explosion occurred in a polyvinyl alcohol production unit and led to a massive fire that raged for several hours. Fortunately, no fatalities were reported, but the incident resulted in 21 people suffering injuries, including some severe burns. The blast also caused significant damage to the plant, with debris scattered across the site and the surrounding neighborhood.

  Investigations into the incident revealed that a combination of factors, including equipment failure and inadequate safety procedures, contributed to the explosion. In the aftermath, the company committed to improving its safety protocols and making necessary upgrades to prevent similar accidents in the future.

• The ExxonMobil Olefins Chemical Plant Explosion – Texas

  On July 31, 2019, a catastrophic explosion occurred at the ExxonMobil Olefins Chemical Plant in Baytown, Texas, sending shockwaves through the industrial and local communities. The explosion resulted in a significant fire and forced the plant to shut down, affecting the production of chemicals and causing concerns about air quality. While no fatalities were reported, 37 people sustained injuries, with one person being hospitalized.

  The ExxonMobil Olefins Chemical Plant explosion highlighted the ongoing challenges and risks associated with the petrochemical industry, particularly the need for robust safety measures and equipment maintenance. It also raised concerns about the potential environmental and health impacts of such incidents in heavily industrialized regions.

• The Phillips 66 Chemical Plant Explosion – Texas

  On October 23, 1989, the Phillips Disaster struck the Houston Ship Channel in Pasadena, Texas, when a series of explosions and fires erupted at the Phillips 66 chemical plant, resulting in the deaths of 23 workers and injuring over 130 others. The incident occurred during routine maintenance when a flammable hydrocarbon mixture escaped from a pipe, ignited, and triggered a chain reaction of explosions and fires that engulfed the facility. This disaster sent shockwaves through the community and the petrochemical industry, prompting extensive investigations and leading to significant changes in safety regulations and procedures.

  The Phillips Disaster exposed serious safety shortcomings within the chemical industry, including inadequate emergency response plans, insufficient training, and outdated equipment. As a result of the explosion, safety regulations and practices in the petrochemical sector were reevaluated and enhanced to prevent similar disasters in the future.

• Phillips 66 Wood River Refinery Fire – Illinois

  On February 10, 2019, a fire erupted in the Distilling Unit #2 at the Phillips 66 Wood River Refinery during the startup phase following a scheduled maintenance outage. The incident occurred due to an operational error when operators mistakenly opened the wrong valve, directing hydrocarbons into a heat exchanger that should have been bypassed. As a result, liquid hydrocarbons entered the exchanger’s shell side, causing an over-pressurization that released hydrocarbons through an open pipe. These hydrocarbons subsequently sprayed onto the exchanger platform structure, encountering an ignition source, leading to a fire that lasted approximately 50 minutes. One contract worker was injured in the fire.

• The Texas City Refinery Explosion – Texas

  On March 23, 2005, a catastrophic explosion at the Texas City Refinery, owned by BP (British Petroleum), shocked the nation and resulted in significant loss of life and property. The explosion occurred when a hydrocarbon vapor cloud ignited, causing a massive blast that left 15 people dead and more than 180 others injured. The Texas City Refinery explosion ranks as one of the deadliest industrial accidents in U.S. history.

  The explosion was the result of a series of failures and safety lapses within the refinery, including inadequate maintenance, faulty equipment, and a flawed safety culture. Investigations revealed that several warning signs of a potential disaster had been ignored or overlooked. The explosion not only had devastating human consequences but also caused extensive damage to the facility and surrounding areas, with debris scattered over a wide radius. This tragic event prompted a reevaluation of safety practices within the petrochemical industry and emphasized the critical importance of proper maintenance, training, and oversight to prevent such disasters in the future.

• The West, Texas Fertilizer Plant Explosion – Texas

  On April 17, 2013, a devastating explosion at the West Fertilizer Co. in the rural town of West, Texas, left 15 people dead, over 200 injured, and hundreds of homes reduced to rubble. Federal investigators determined this tragic incident was the result of criminal activity.

  The force of the explosion was so immense that it registered as a magnitude-2.1 earthquake. A 93-foot-wide crater scarred the site of the fertilizer plant, where hazardous chemicals, including ammonium nitrate, were stored. The blast flattened the farming community, leaving around 2,800 residents in shock as their homes turned to rubble. Tragically, ten first responders and two volunteers were among those killed while battling the initial blaze.

• The Phillips K-Resin Plant Explosion – Texas

  On March 27, 2000, tragedy struck at Phillips Petroleum’s Houston Chemical Complex in Pasadena, Texas, when an explosion and fire at the K-Resin facility resulted in one fatality and 71 injuries. The explosion occurred in a tank undergoing cleaning. The tank lacked pressure and temperature gauges that could have alerted workers.

  Following a six-month investigation, the Occupational Safety and Health Administration (OSHA) attributed the explosion to a failure to train workers properly. OSHA proposed $2.5 million in penalties for 50 alleged safety standard violations at the facility. Rodney Gott, a supervisor who had previously survived the Phillips Disaster of 1989, tragically lost his life in the incident.

• The Imperial Sugar Refinery Explosion – Georgia

  On February 7, 2008, a sugar dust explosion at the Imperial Sugar refinery in Port Wentworth, Georgia, claimed 14 lives and left 38 people injured. The U.S. Chemical Safety Board’s report, released in September 2009, deemed the explosion “entirely preventable.”

  The explosion, fueled by a massive accumulation of combustible sugar dust, originated in the packaging facility at the center of the refinery. The blast caused extensive damage, turning the structure into a maze of twisted metal. The refinery’s fire suppression system was ineffective, leading to a challenging firefighting operation.

  The incident was not unforeseen, as dust explosions had contributed to fatal incidents just five years earlier. Understanding the dynamics of dust explosions is important, considering the broad range of industries susceptible to such disasters.

• The Dupont La Porte Chemical Facility Toxic Chemical Release – Texas

  On November 15, 2014, a tragic incident occurred at the DuPont La Porte Chemical Facility in La Porte, Texas, when 24,000 pounds of methyl mercaptan were unintentionally released from vent piping during startup and troubleshooting operations at an insecticide production plant. The release of methyl mercaptan proved fatal, taking the lives of four employees and causing injuries to two additional employees.

  The incident stemmed from a shutdown of the DuPont Lannate process on November 10, during which a portion of the methyl mercaptan piping in the reaction section became obstructed due to the formation of a solid hydrate. Over several days, plant personnel engaged in troubleshooting efforts and eventually identified and dislodged the plug using hot water on the outside of the piping. As part of the troubleshooting process, plant personnel opened valves from the mercaptan piping to the waste gas vent header to relieve pressure. Unfortunately, the vent header provided an open pathway into an interior building through drain lines, allowing the released methyl mercaptan liquids to enter the building. This incapacitated multiple plant personnel who were troubleshooting the issue and responding to alarms, leading to injuries and fatalities.

• The Kleen Energy Natural Gas Explosion – Connecticut

  On Sunday, February 7, 2010, a catastrophic natural gas explosion rocked the Kleen Energy power plant, which was under construction in Middletown, Connecticut, resulting in a tragic loss of six lives and leaving more than 50 individuals injured. The incident occurred during the commissioning and startup phase of the Kleen Energy project while workers were engaged in the planned cleaning of fuel gas piping. Specifically, they were conducting a procedure known as a “gas blow,” which involved forcing natural gas through the piping at high pressure and volume to remove debris. Unfortunately, during this process, the natural gas and debris were released directly into the atmosphere.

  The Kleen Energy construction site used natural gas at an approximate pressure of 650 pounds per square inch gauge (psig), and a total of 15 natural gas blows were performed intermittently over approximately four hours through open-ended pipes located less than 20 feet off the ground, adjacent to the south wall of the main power generation building.

• ConAgra Foods Plant Explosion – North Carolina

  On June 9, 2009, a tragic explosion occurred at the ConAgra Foods plant during the installation of an industrial water heater by a contractor from Energy Systems Analysts (ESA). The ESA worker attempted to purge air from a three-inch natural gas supply pipe for the heater, using natural gas for the process. As per ESA’s standard practices, the purged gases were vented into a utility room equipped with a ventilation fan. Struggling to light the heater, the workers continued purging the gas line for over two and a half hours. Plant personnel were aware of this indoor purging and relied on their sense of smell to detect any potential gas buildups.

  The explosion resulted in significant damage to approximately 100,000 square feet of the facility, mainly in the southern part where packing operations were conducted. The blast also triggered a leak from the plant’s refrigeration system, releasing approximately 18,000 pounds of ammonia.

  Tragically, four workers lost their lives, including a member of ConAgra’s safety team who heroically attempted to rescue a co-worker and was killed by falling debris. Additionally, 71 people were hospitalized with injuries, including three firefighters who were exposed to ammonia during the incident.

• The LyondellBasell La Porte Fatal Chemical Release – Texas

  On July 27, 2021, a tragic chemical release occurred at the LyondellBasell La Porte Complex in La Porte, Texas, resulting in the loss of two lives and injuries to several workers.

  Three contract workers employed by Turn2 Specialty Companies were tasked with removing an actuator from a plug valve within the site’s acetic acid unit to use the valve as an energy isolation device for a pipe spool repair job. During the process, the workers removed pressure-retaining components of the valve, causing the plug to be ejected from the valve body. This resulted in the sudden release of approximately 164,000 pounds of acetic acid mixture, spraying all three contract workers with the corrosive substance.

  Tragically, two of the workers suffered fatal injuries due to chemical burns and toxic inhalation resulting from exposure to acetic acid and methyl iodide. Additionally, the third Turn2 worker and a LyondellBasell responder sustained serious injuries, while 29 other personnel were transported to medical facilities for evaluation and treatment.

• D.D. Williamson & Co.Catastrophic Vessel Explosion – Kentucky

  A catastrophic explosion at D.D. Williamson & Co., Inc. claimed the life of one operator. The explosion damaged the facility’s western end, releasing 26,000 pounds of aqua ammonia. The explosion led to the evacuation of 26 residents and required 1,500 people to shelter in place.

• Chemical Explosion at First Chemical Corp. – Mississippi

  The First Chemical Corporation (FCC) facility in Pascagoula, Mississippi, exploded on October 13, 2002, caused by steam leaking through manual valves, inadvertently heating
  mononitrotoluene within a shutdown distillation column. With approximately 1,200 gallons of MNT present, decomposition occurred over several days, causing a runaway reaction and subsequent explosion. Debris from the blast ignited a fire in an MNT storage tank alongside multiple smaller fires both onsite and offsite.

• Kaltech Industries Explosion – New York

  The Kaltech Industries Group, Inc., a sign manufacturer, was responsible for an explosion in New York City. While consolidating hazardous waste from smaller containers into larger drums, an explosion and subsequent fire erupted, injuring at least 36 individuals, including citizens and
  six firefighters.

• Vapor Cloud Fire at BLSR Operating Ltd. – Texas

  The BLSR Operating, Ltd, facility in Rosharon, Texas, exploded on January 13, 2003, resulting in the death of two BLSR employees and serious burns to three others, including two Environmental Services Inc. truck drivers who had just completed a delivery. One of the truck drivers died from his injuries.

• DPC Enterprises Festus Chlorine Spill

  A chlorine gas leak from a railroad tank car owned by DPC Enterprises, caused over 48,000
  pounds of chlorine gas to leak into the air over three hours, resulting in the hospitalization of 63 members of the community.

• Third Coast Industries Facility Petroleum Fire  – Texas

  Third Coast Industries, a facility that specializes in blending and packaging various types of oils and lubricants, caught on fire on May 1, 2002. Since the building was not equipped with adequate fire prevention, despite the efforts of the firefighters, the fire could not be contained. The fire destroyed the facility, 1.2 million gallons of flammable liquids, and led to the evacuation of 100 residents.

• Georgia-Pacific Corp. Hydrogen Sulfide Leak – Alabama

  On January 16, 2002, a leak of hydrogen sulfide gas occurred at the Georgia-Pacific Naheola mill in Pennington, Alabama. Two contractors from Burkes Construction lost their lives, and eight others were injured.

• Motiva Enterprises Sulfuric Acid Tank Explosion – Delaware

  On July 17, 2001, an explosion occurred at Motiva Enterprises’s Delaware City Refinery in Delaware City, Delaware. The explosion happened while contractors were conducting repairs on a catwalk grating in a sulfuric acid storage tank farm. The explosion led to the death of Jeffrey Davis, a boilermaker working with WGI. The incident also resulted in injuries to eight
  other individuals.

• BP Amoco Thermal Breakdown Explosion – Georgia

  On March 13, 2001, a pressure explosion at BP Amoco Polymers in Augusta, Georgia, left three people dead. The pressure explosion happened when a partially loosened cover of a
  pressurized vessel was ejected, releasing hot plastic. This sudden release also caused nearby tubing to rupture, leading to the spillage of hot fluid which then ignited, resulting in a fire.

• Concept Sciences Hydroxylamine Explosion – Pennsylvania

  Concept Sciences chemical plant in Allentown, Pennsylvania, had a vessel containing a large amount of hydroxylamine, explode on February 19, 1999. The explosion happened while employees were conducting the first commercial distillation of an HA and potassium sulfate solution at CSI’s new facility. Following the completion of the distillation process, the HA underwent explosive decomposition, likely triggered by its high concentration and temperature
  within the process tank and pipes. The explosion resulted in the death of four CSI employees and a manager from a neighboring
  business. Additionally, two CSI employees suffered moderate to serious injuries but survived. The blast also injured four individuals in adjacent buildings, and during the emergency response, six firefighters and two security guards incurred minor injuries.

  The explosion resulted in the death of four CSI employees and a manager from a neighboring business. Additionally, two CSI employees sustained moderate to serious injuries but survived. The blast also injured four individuals in adjacent buildings, and during the emergency response, six firefighters and two security guards incurred minor injuries.

• Bethlehem Steel Corp. Gas Fire – Indiana

  Two people were killed and four people injured in the February 2, 2001 Bethlehem Steel Corporation’s mill fire in Chesterton, Indiana. The fire occurred when workers removed a slip blind from a cracked valve, allowing a flammable liquid to escape and catch fire. The incident claimed the lives of a millwright from Bethlehem Steel and a contractor supervisor.

• Tosco Avon Refinery Petroleum Naphtha Fire – California

  A naphtha-caused fire at Tosco Corporation’s Avon refinery in Martinez, California, killed four workers and seriously injured one. This fire was the result of Naphtha, a highly flammable chemical, leaking onto hot equipment. The fire engulfed five workers at various levels of the tower.

• Enterprise Pascagoula Gas Plant Explosion –
  Mississipi

  The Enterprise Products Pascagoula Gas Plant in Mississippi experienced a significant loss of
  containment which led to the release and subsequent ignition of methane, ethanem propane,
  and other hydrocarbons triggering multiple explosions and fires on June 27, 2016. The damage
  was extensive, causing the plant to shut down for almost six months, and causing considerable
  stress throughout the community, with many residents opting to evacuate. The financial toll on
  Enterprise Products from this event included $10.4 million in fire response expenses and a non-
  cash loss of $7.1 million. A community organization later voiced concerns to the Chemical
  Safety Board (CSB) about the lack of clear guidance on how to react in such situations,
  indicating a need for better communication and emergency preparedness.

• Midland Resource Explosion – West Virginia

  The Midland Resource Recovery facility in Philippi, West Virginia, suffered an explosion, which
  claimed the lives of two workers and severely injured another, on May 24, 2017.
  The Chemical Safety Board (CSB) launched an investigation in response to the incident on May
  28, 2017. While the investigation was ongoing, the facility exploded again, claiming the life of a
  contractor r from Specialized Professional Services, Inc. (SPSI), a company engaged by MRR
  for post-explosion investigation and mitigation efforts.
  The CSB’s investigation showed the likely cause of both explosions was the reaction of unstable
  chemicals during the process of draining chemically treated liquid from natural gas odorizer
  equipment. It was found that MRR did not have an effective safety management system in place
  to identify and mitigate the hazards associated with reactive chemicals, subsequently causing
  the fatal explosions. This absence of safety protocols and safeguards significantly increased the
  risk of unexpected and uncontrollable chemical reactions.

• Hydrogen Sulfide Release at Aghorn Operating
  Waterflood Station – Texas

  An Aghorn Operating Inc. Facility, in Odessa, Texas, suffered a fatal H2S gas leak, leading to
  the death of two people. One of the people who lost their life was an employee who was
  responding to an oil level alarm at the Foster D waterflood station. Attempting to manage the
  situation, the employee tried to isolate the pump by adjusting its discharge and suction valves
  without implementing a proper Lockout/Tagout procedure to securely disconnect the pump from
  its energy sources. The pump unexpectedly activated, resulting in the discharge of water laced
  with hydrogen sulfide (H2S) gas—a highly toxic substance—due to a broken plunger within the
  pump. Following the incident, the employee’s spouse went into the watershed in search of the
  employee and was lethally exposed to H2S gas, ultimately losing her life due to exposure.
  The sequence of events leading to the pump’s failure and the subsequent release of H2S-laden
  water remains unclear due to a lack of substantial evidence. It is uncertain whether the
  malfunction had already taken place prior to the employee’s arrival or occurred as a result of the
  pump being inadvertently activated while the employee was attempting to isolate it.

• Hot Work Fire: Evergreen Packaging Paper Mill –
  North Carolina

  Maintenance and upgrade activities were taking place during a planned shutdown across the
  Evergreen Packaging Mill facility in Canton, North Carolina. The upflow tower, made of fiber-
  reinforced plastic (FRP), was undergoing repairs by Blastco. The process involved applying
  flammable epoxy vinyl ester resin and fiberglass sheets to the interior surfaces to combat
  corrosion. However, cooler-than-expected temperatures slowed the curing process of the resin,
  causing the applied materials to slip down the tower walls. Despite various attempts to rectify
  the situation, the Blastco workers ultimately resorted to using a portable electric heat gun to
  expedite the resin's hardening. This decision created an ignition hazard in the presence of the
  flammable resin, which led to the fire.

• Packaging Corporation of America Explosion –
  Louisiana

  A foul condensate tank exploded during a planned shutdown at the Packaging Corporation of
  America (PCA) in DeRidder, Louisiana, resulting in the death of three individuals and injuries to
  seven other contract workers. The explosion caused the foul tank to be propelled over 375 feet
  and caused significant damage to the facilities.
  The foul condensate tank in question was likely to have contained a mixture of water and a
  flammable layer of liquid turpentine. This volatile combination contributed to the severity of the
  explosion and its devastating impact on the mill and its workers.

• Philadelphia Energy Solutions (PES) Refinery
  Explosion – Philadelphia

  On June 21, 2019, the Philadelphia Energy Solutions (PES) refinery experienced a significant
  incident when a pipe elbow in the hydrofluoric acid (HF) alkylation unit burst. This rupture
  released a vapor cloud containing mainly propane (95%), HF (2.5%), and other hydrocarbons,
  quickly enveloping a section of the unit. Within two minutes of the release, the vapor ignited,
  leading to a substantial fire. In response, the control room operator activated the Rapid Acid
  Deinventory (RAD) system, designed to transfer HF to a secure drum during containment loss
  or emergencies, successfully redirecting approximately 339,000 pounds of hydrofluoric acid.
  However, attempts to activate the water pumps feeding the HF mitigation water cannons,
  intended to suppress airborne HF, were unsuccessful due to a communication failure in the
  control system and a concurrent backup power failure. These systems are crucial for mitigating
  the spread of HF by creating a water spray barrier.
  Subsequently, three explosions occurred within the unit, secondary to the initial fire. The most
  significant explosion resulted from the violent rupture of a vessel labeled V-1, which contained
  butylene, isobutane, and butane. This explosion propelled a 38,000-pound fragment of the V-1
  vessel across the Schuylkill River, while two other large fragments landed within the refinery
  premises, weighing approximately 23,000 pounds and 15,500 pounds, respectively.

• Flash Fire at Sunoco Logistics Partners – Texas

  At the Sunoco Nederland crude oil terminal, an explosion occurred during a welding operation
  conducted by L-Con, Inc., a contractor. The operation involved welding a segment of piping,
  which unexpectedly led to a flash fire and explosion around 8:15 p.m. CDT. This incident was
  precipitated by the overpressure in the pipe segment being worked on, which resulted in the
  expulsion of CARBER isolation tools—used in the project for pipe segment isolation—and
  residual crude oil within the pipe. The ejection of these materials caused impact and burn
  injuries to seven workers.

• Pressure Vessel Explosion: Loy Lange Box
  Company – Missouri

  The Loy-Lange Box Company in St. Louis, Missouri, experienced a catastrophic explosion when
  a pressure vessel known as a Semi-Closed Receiver, part of the company's steam system,
  failed dramatically. This failure led to a boiling liquid expanding vapor explosion (BLEVE),
  resulting in the death of an employee who was working in close proximity to the vessel at the
  time of the explosion. The force of the explosion was so intense that it propelled the pressure
  vessel out of the Loy-Lange facility and into the air, causing it to crash through the roof of a
  neighboring business, where it tragically killed three people.
  The St. Louis Fire Department responded quickly to the scene of the disaster. The U.S.
  Chemical Safety and Hazard Investigation Board (CSB) and the U.S. Occupational Safety and
  Health Administration (OSHA) conducted thorough investigations into the causes and
  circumstances surrounding this fatal explosion.

• Massive Explosion at AB Specialty Silicones, LLC –
  Illinois

  The AB Specialty Silicones manufacturing plant in Waukegan, Illinois, had a critical error occur
  during a manual batch operation where operators mixed chemicals in a tank. An operator
  inadvertently pumped the wrong chemical into the tank due to the similar appearance of the
  storage drums, which only had small distinguishing labels and bung caps. The accidental
  combination of incompatible chemicals initiated a chemical reaction, leading to a process upset
  characterized by the tank's contents foaming and spilling over. This reaction produced hydrogen
  gas within the facility, which subsequently ignited, resulting in a devastating explosion and fire.
  This tragic event led to the loss of four employees' lives and inflicted severe damage on the
  production building. The destruction necessitated the temporary cessation and relocation of
  certain operations until the facility could be reconstructed.

• Husky Energy Superior Refinery Explosion –
  Wisconsin

  Husky Energy's Superior Refining Company LLC refinery in Superior, Wisconsin, experienced a
  significant explosion and fire during a scheduled maintenance shutdown involving 800-900
  personnel. The refinery reported the release of 39,000 pounds of flammable hydrocarbon vapor
  during the incident. This led to injuries among 36 workers, with 11 sustaining injuries that were
  recordable by the Occupational Safety and Health Administration (OSHA), and inflicted property
  damage estimated at $550 million.
  The explosion, which occurred at 9:58 a.m. during the shutdown of the fluid catalytic cracking
  (FCC) unit, involved two vessels within the unit, causing a powerful blast felt up to a mile away
  and scattering metal debris over a large area. This debris compromised a nearby asphalt tank,
  leading to a spill of hot asphalt that eventually ignited around noon, triggering multiple fires

  across the refinery. The severity of the situation prompted the evacuation of 2,507 residents
  from the surrounding areas and a shelter-in-place advisory in Duluth, Minnesota. The fires were
  successfully extinguished before midnight, allowing evacuation and shelter-in-place orders to be
  lifted by the following morning at 6:00 a.m.

• Bio-Lab Lake Charles Incident – Louisiana

  On August 27, 2020, the Bio-Lab, Inc. facility in Westlake, Louisiana, faced severe damage from
  Category 4 Hurricane Laura's extreme winds. The buildings storing chemical formulations
  primarily containing trichloroisocyanuric acid (TCCA) suffered significant destruction. TCCA-
  based formulations are commonly used as sanitizers in swimming pools and hot tubs to
  eliminate algae and bacteria. However, when these formulations encounter even small amounts
  of water without dissolving, they can undergo a chemical reaction, generating heat and
  producing toxic chlorine gas and potentially explosive nitrogen trichloride.
  Following the hurricane damage, rainwater infiltrated the damaged buildings, initiating a
  chemical reaction and decomposition of the stored TCCA-based formulation. This reaction
  caused a fire and released hazardous gases, including toxic chlorine, into the air. The plume of
  hazardous gases extended beyond the facility, prompting the closure of a section of Interstate
  10 for over 28 hours and necessitating a shelter-in-place order from the Calcasieu Parish Office
  of Homeland Security and Emergency Preparedness. Despite the significant destruction, there
  were no reported injuries from the incident. Subsequently, approximately $250 million was
  invested in redesigning and completely reconstructing the damaged Bio-Lab facility, which
  resumed production operations around March 2023.

• Wacker Polysilicon Chemical Release – Tennessee

  A distressing explosion unfolded at the Wacker Polysilicon North
  America (Wacker) facility in Charleston, Tennessee, when a graphite heat exchanger cracked
  during maintenance activities, leading to the release of gaseous hydrogen chloride (HCl). The
  mishap occurred on the fifth floor of an equipment access structure, where a contractor pipefitter
  applied excessive torque to flange bolts on a heat exchanger outlet pipe containing HCl,
  resulting in the pipe cracking and releasing the harmful gas.
  At the time of the incident, seven workers from two contract firms were present on the fifth-floor
  platform, which had only one staircase for access and egress. Three workers, equipped with
  full-body chemical-resistant suits, were tasked with bolt torquing, while the remaining four,
  wearing standard flame-resistant clothing, were assigned to insulate equipment. The dense
  white cloud created by the released HCl obstructed visibility, preventing all workers from
  accessing the staircase for evacuation. As a result, three contractor workers without full-body

  chemical-resistant suits attempted to descend by climbing down piping on the structure's side,
  approximately 70 feet above the ground. Tragically, all three workers fell, resulting in one fatality
  and serious injuries to the other two. After the HCl release ceased, the remaining four workers
  on the fifth-floor platform utilized the staircase to evacuate safely, although the incident caused
  $214,000 in property damage at the Wacker site.

• Fatal Explosion and Fire at Watson Grinding – Texas

  Tragedy struck at the Watson Grinding and
  Manufacturing Co. (Watson Grinding) facility in Houston, Texas, when an accidental release of
  propylene accumulated and detonated inside a building. This explosion led to the tragic deaths
  of two employees and caused injuries to two others, along with a nearby resident who also lost
  their life. The blast wreaked havoc on the surrounding area, damaging hundreds of nearby
  structures, including homes and several businesses. Subsequently, on February 6, 2020,
  Watson Grinding filed for bankruptcy and ceased its operations.
  Following the incident, the U.S. Chemical Safety and Hazard Investigation Board (CSB)
  conducted an investigation and determined that a hose disconnected from its fitting within a
  coating booth (Booth 4), releasing propylene, a highly flammable hydrocarbon vapor. This
  propylene buildup occurred inside the coating building before the explosion. When Watson
  Grinding employees arrived the next morning, they unwittingly encountered an explosive
  concentration of propylene within the building. Tragically, when one of the employees switched
  on the lights, igniting the flammable propylene vapor, it resulted in a devastating explosion.

• Explosion and Fire at Optima Belle – West Virginia

  An explosion occurred at Optima Belle
  LLC (Optima Belle) in Belle, West Virginia. The explosion originated from a pressure-rated
  rotary double cone dryer containing sodium dichloroisocyanurate dihydrate (NaDCC dihydrate),
  also known as CDB-56®, causing a subsequent fire and the release of toxic chlorine. Local
  authorities swiftly issued a shelter-in-place order for the region within a two-mile radius of the
  Optima Belle site, which remained in effect for over four hours. The explosion caused significant
  property damage, with debris scattered nearly half a mile from the site and resulting in one
  fatality among Optima Belle employees, while two others experienced respiratory irritation, and
  one Kanawha County resident sustained a minor leg injury.
  The incident unfolded during Optima Belle's process of dehydrating CDB-56® to produce
  anhydrous sodium dichloroisocyanurate under a contractual agreement with Clearon
  Corporation through tolling outsourcing partner Richman Chemical Inc. (RCI). Unexpectedly, the
  chlorinated isocyanurate compound underwent a decomposition reaction while inside the dryer
  unit, releasing gases that exceeded the dryer's design pressure, leading to the explosion. Metal
  debris and fragments from the dryer were ejected off-site and within the facility, striking a

  methanol pipe and igniting a fire. The estimated property damage incurred by Optima Belle from
  the explosion totals $33.1 million. Responders from various agencies, including the Chemours
  Belle site fire brigade, Belle Volunteer Fire Department, Kanawha County Emergency
  Management, and West Virginia Emergency Management, quickly mobilized to manage the
  aftermath of the incident.

• Tank Fire Incident at Intercontinental Terminals
  Company (ITC) – Texas

  A significant fire broke out at the Intercontinental Terminals Company (ITC)
  facility in Deer Park, Texas, starting near an 80,000-barrel storage tank containing a flammable
  naphtha and butane blend. ITC's efforts to contain the fire were unsuccessful, leading to the
  fire's escalation and spread across 14 additional tanks within the same containment area. After
  burning intensely for three days, the fire was finally extinguished on March 20. This incident led
  to the destruction of fifteen 80,000-barrel tanks and their contents, causing extensive property
  damage at the ITC terminal.
  The environmental repercussions of the fire were severe. A breach in the containment wall
  allowed approximately 470,000 to 523,000 barrels of hydrocarbon products, firefighting foam,
  and contaminated water to spill into Tucker Bayou, subsequently affecting nearby water bodies
  and ecosystems, including the Houston Ship Channel. This spill prompted the closure of a
  seven-mile section of the channel and several local parks due to contamination risks. Despite
  no reported injuries or fatalities, the event significantly disrupted the local community,
  necessitating shelter-in-place orders due to air quality concerns from benzene, closures of
  schools and businesses, and traffic disruptions. The estimated property damage from the
  incident surpassed $150 million.

• Vapor Cloud Explosion and Fire at Yenkin-Majestic
  Resin Plant – Ohio

  On the early hours of April 8, 2021, a catastrophic event unfolded at the Yenkin-Majestic OPC
  Polymers resin plant in Columbus, Ohio, when a mix of naphtha solvent vapors and resin liquid
  became pressurized and escaped through a closed manway seal in an operational kettle. This
  release led to the formation of a flammable vapor cloud within and around the facility. Within two
  minutes, at 12:04 a.m., this vapor cloud ignited, causing a massive explosion followed by a
  significant fire that took approximately 11 hours to extinguish, with over 100 firefighters,
  including hazmat teams, battling the blaze. The explosion inflicted damage on the Yenkin-
  Majestic premises and a neighboring commercial property, with the impact felt widely across
  Columbus, as reported by local news.

  The tragic incident resulted in one employee losing their life due to thermal injuries and smoke
  inhalation, found beneath debris within the plant. Eight others sustained serious injuries,
  necessitating hospitalization, with injuries ranging from third-degree burns to limb fractures; one
  individual required a leg amputation due to being trapped under the wreckage. Additionally, the
  firefighting efforts led to water runoff entering Alum Creek, causing environmental concerns
  noted by the Ohio Environmental Protection Agency until at least April 11. Following the
  incident, Yenkin-Majestic reported property damages exceeding $90 million and proceeded to
  demolish the heavily damaged resin plant.

• Explosion and Fire Incident at Didion Milling
  Company – Wisconsin

  The Didion Milling, Inc. facility in Cambria, Wisconsin, was the site
  of several devastating combustible dust explosions, resulting in the deaths of five employees
  and injuries to 14 others. Out of 124 employees at the Cambria site, 19 were present when the
  explosions occurred around 11:00 p.m. Earlier that day, Didion had made modifications to the
  discharge systems of two rotary gap mills to boost production. During the evening's operations,
  employees detected the smell of smoke within the mill and began to search for its origin,
  suspecting it was coming from the first floor of one of the buildings.
  While investigating, an explosion was heard, followed by the sight of fire emanating from the
  discharge piping of the rotary gap mill equipment. The ensuing chaos, exacerbated by unclear
  radio communications, led to a hasty evacuation. The initial fire led to a deflagration that
  propagated through interconnected dust collection systems, triggering explosions in some of
  these systems and resulting in subsequent secondary explosions throughout the facility. Many
  employees, unaware of the unfolding emergency, were caught off-guard by the explosions. The
  catastrophic event caused multiple buildings within the mill to collapse, with the Multipurpose
  Building, F Mill, and the Boiler House being completely destroyed, and significant damages to
  others, rendering some areas inaccessible. The estimated property damage amounted to
  approximately $15.38 million, with no reported damages or repercussions beyond the site.

• Foundation Food Group Fatal Chemical Release –
  Georgia

  A tragic explosion unfolded at the Foundation Food Group facility in Gainesville, Georgia when
  liquid nitrogen overflowed from an immersion freezer in the Plant 4 building. This occurred
  between 8:45 and 10:15 a.m. as maintenance workers were addressing operational problems
  with the freezer, a piece of equipment provided by Messer LLC and leased to FFG. The
  escaped liquid nitrogen quickly turned into gas, filling a poorly ventilated lower-level room and
  leading to the asphyxiation and death of the two maintenance workers involved in the
  troubleshooting.
  The situation worsened as the release went unnoticed for up to an hour until another employee,
  in search of the maintenance workers, encountered a significant vapor cloud. The discovery
  prompted management to evacuate the building. However, during the evacuation and
  subsequent response efforts, four more FFG employees succumbed to asphyxiation, and three
  other employees, along with a firefighter, sustained serious injuries. In the aftermath, FFG
  initiated legal action against its insurance company, seeking approximately $1.7 million in
  damages, while Messer reported losses close to $245,000.

• Fatal Fire and Explosion Incident at KMCO LLC –
  Texas

  The KMCO facility in Crosby, Texas, experienced a devastating explosion caused by a cloud of
  flammable isobutylene vapor. This tragic incident led to the death of one KMCO employee and
  severe injuries to two others; additionally, 28 workers sustained injuries. Following the
  explosion, local authorities implemented a shelter-in-place order for residents within a 1-mile
  radius, which lasted until approximately 3:15 p.m.
  The explosion occurred during the production of sulfurized isobutylene, a lubrication additive,
  when a metal piece broke off a y-strainer in the supply piping, releasing isobutylene. A field
  operator, who was still in training, noticed the issue immediately after hearing the noise from the
  broken strainer. After a quick exchange with a contract insulator leaving the area, he alerted the
  control room, triggering a swift response from the operations team to halt the isobutylene leak,
  evacuate the area, and attempt to prevent the vapor cloud from igniting.

• Fatal Explosion at Wendland 1H Well – Texas

  A catastrophic explosion occurred at the Daniel H. Wendland 1-H well in Burleson County,
  Texas, operated by Chesapeake Operating, L.L.C. The well lost control, leading to a blowout
  where oil and gas rapidly escaped and ignited, causing a severe flash fire around the well site.
  This tragic incident resulted in the deaths of three contract workers due to fatal burn injuries,
  with one succumbing to their injuries at the scene and two others later in the hospital. A fourth
  worker also sustained serious burns.

  During the incident, workers were engaged in installing a new tubing head as part of
  maintenance work on the well. Meanwhile, employees were preparing for their subsequent task
  of fitting tubing inside the well. The explosion and fire not only claimed lives but also led to the
  destruction of the workover rig and several vehicles in the vicinity, illustrating the extreme
  hazards associated with well operations and the importance of stringent safety measures.