The Torrance Refinery uses modified hydrofluoric acid, or MHF, which the refinery considers to be a safer alternative to HF<\/a>, though the claim is disputed by advocates. Steve Goldsmith, president of the Torrance Refinery Action Alliance, <\/a> which hosted the Saturday event, said that if MHF were to be been released into the air, it would create irreversible health effects within 6.2 miles of the refinery, trickling into other parts of Los Angeles County. <\/p>\n And in 2015, he said, this almost happened. <\/p>\n On Feb. 18, 2015, there was an explosion at the refinery, then operated by ExxonMobil, caused by the rupture of an eroded valve<\/a>. The incident, which released flammable hydrocarbons, injured four workers and forced 14 schools into lockdown<\/a>. <\/p>\n The Saturday event, held at North High School\u2019s Performing Arts Center in Torrance, marked the 11th anniversary of the explosion. <\/p>\n Goldsmith described the chemical as \u201cmurderous.\u201d<\/p>\n Audience members participate in a \u201cpeace clap\u201d at North Torrance High as they listen to speakers against the use of hydrofluoric acid in the Los Angeles region and across the country.<\/p>\n (Allen J. Schaben \/ Los Angeles Times)<\/p>\n \u201cTorrance Refinery had an enormous explosion, and a piece of equipment the size of a bus came within five feet of the hydrofluoric acid, causing a near miss,\u201d Goldsmith said. \u201cWe\u2019ve been working to get rid of it.\u201d<\/p>\n Residents like Christopher Truman say replacing MHF with an alternative option is the least that can be done. His parents live near the refinery. <\/p>\n \u201cI\u2019m born and raised in the South Bay, and my family lives in, effectively, what would be the blast radius if another accident happened,\u201d Truman said. \u201cSo just in that aspect, I\u2019m very worried about it.\u201d<\/p>\n MHF is also used to clean semiconductor surfaces and produce pesticides and herbicides in the agricultural and pharmaceutical industries, according to the Torrance Refinery.<\/p>\n County Supervisor Janice Hahn said residents should not assume \u201cthey will be lucky\u201d if another refinery accident were to occur.<\/p>\n \u201cOnly two refineries in California use MHF, Torrance Refinery and the Valero Refinery in Wilmington,\u201d Hahn said. \u201cMHF is simply too dangerous to use. It is a flesh-eating, low-crawling, toxic vapor cloud. Our communities will not be safe until this chemical is gone.\u201d<\/p>\n Goldsmith said a Chevron refinery in Salt Lake City<\/a> found an ionic-liquid alkylation process as an alternative to MHF. He added that the 2025 Chevron refinery explosion<\/a> in El Segundo \u201cwould have been different if they had been using MHF.\u201d<\/p>\n \u201cThey used another chemical that did not endanger the community,\u201d Goldsmith said. \u201cAnd that\u2019s the thing about refineries, they have explosions. But that\u2019s why you can\u2019t have [MHF] around things that can blow up.\u201d<\/p>\n U.S. Representative <\/p>\n U.S. Rep. Maxine Waters (D-Los Angeles) appears on a video message explaining her legislation, which she says will have a positive impact for communities in the Los Angeles region.<\/p>\n (Allen J. Schaben \/ Los Angeles Times)<\/p>\n U.S. Rep. Maxine Waters, (D-Los Angeles), who represents the city of Torrance, greeted attendees in a prerecorded message, in which she reintroduced her bill,<\/a> the \u201cPreventing Mass Casualties from Release of Hydrofluoric Acid at Refineries Act,\u201d which targets plants using MHF.<\/p>\n \u201cI originally introduced this bill in December of 2024,\u201d Waters said in the video. \u201cI faced considerable opposition, especially from the United Steel Workers Union, [who were] concerned that if refineries converted to safer technologies, some of the refineries might close, leaving workers without jobs. They agreed with me that hydrofluoric acid is dangerous. But they still would not support my bill. So I decided to go ahead and reintroduce this bill, [without] union support.\u201d<\/p>\n The bill would give refineries five years to find an alternative to the dangerous chemical. Violators may be subject to fines up to $37,000 per infraction.<\/p>\n Los Angeles County Supervisor Janice Hahn speaks out against the use of hydrofluoric acid.<\/p>\n (Allen J. Schaben \/ Los Angeles Times)<\/p>\n Some residents stressed the need for transparency from local officials.<\/p>\n![\"Audience](\"https:\/\/www.europesays.com\/us\/wp-content\/uploads\/2026\/02\/1770536538_90_.jpeg\")
<\/p>\n![\"Congressmember](\"https:\/\/www.europesays.com\/us\/wp-content\/uploads\/2026\/02\/1770536538_716_.jpeg\")
<\/p>\n![\"Supervisor](\"https:\/\/www.europesays.com\/us\/wp-content\/uploads\/2026\/02\/1770536539_554_.jpeg\")
<\/p>\n