HOUSTON (AP) - Federal investigators have issued urgent new safety recommendations after a Citgo refinery accident in Texas that led to the release of tons of a deadly acid.
The U.S. Chemical Safety Board on Wednesday urged Citgo to improve its emergency water systems in case there's another accident. In July, a cloud of hydrogen fluoride was released and caught fire in Corpus Christi. That fire led to the release of 21 tons of HF.
The United Steel Workers union and the Sierra Club have been urging the ban of HF at U.S. refineries.
The CSB wants Citgo to improve the water systems and to institute third-party audits at refineries in Corpus Christi and Lemont, Ill.
A Citgo spokesman didn't immediately return a call seeking comment.
(Copyright 2009 by The Associated Press. All Rights Reserved.)
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