In preliminary findings released today, the U.S. Chemical Safety Board (CSB) stated that internal BP documents prepared between 2002 and 2005 revealed knowledge of significant safety problems at the Texas City refinery and at 34 other BP business units around the world – months or years prior to the March 2005 explosion that killed 15 workers, injured 180 others, and was the worst U.S. industrial accident in more than a decade... [CSB] Chairman Merritt also praised BP’s positive moves in the aftermath of the accident... Maintenance spending fell throughout the 1990’s at the then-Amoco refinery, and following the merger with BP further cuts were imposed.