CSB calls on EPA to update HF study in wake of the 2017 Husky refinery fire

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The US Chemical Safety Board released a letter  April 24 calling on the Environmental Protection Agency (EPA), to review its existing Hydrofluoric Acid (HF) study to determine the effectiveness of existing regulations as well as the viability of utilizing inherently safer alkylation technologies in petroleum refineries.  CSB Interim Executive Kristen Kulinowski said, “In the last 4 years, the CSB has investigated two refinery incidents where an explosion elevated the threat of a release of HF.  Refinery workers and surrounding community residents are rightly concerned about the adequacy of the risk management for the use of hazardous chemicals like HF.  The EPA should review its 1993 HF study to ensure the health and safety of communities near petroleum refineries utilizing HF.”  HF is a highly toxic chemical that can seriously injure or cause death at a concentration of 30 parts per million (PPM), which is used in about fifty of the U.S.’s...
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CSB releases safety bulletin on 2015 chemical release and flash fire at Delaware factory

The U.S. Chemical Safety Board (CSB) released its findings and a safety bulletin entitled "Key Lessons for Preventing Incidents when Preparing Process Equipment for Maintenance" resulting from a hydrocarbon release and fire that injured one worker at the Delaware City Refining Company in Delaware City, DE. CSB Chairperson Vanessa Allen Sutherland said, "More than a third of the incidents investigated by the CSB occurred during maintenance activities, ultimately resulting in 86 fatalities and 410 injuries." On November 29, 2015, alkylation unit operators at the Delaware City Refining Company, or DCRC, were preparing equipment for maintenance. Prior to performing the work, operators had to first drain and isolate a section of piping scheduled to be replaced by closing valves to block the flow of hydrocarbons into the piping. However, the operators learned that a valve on one side of the pipe isolation was leaking and therefore would not seal properly, which led...
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