According to the 2010 agreement with OSHA, BP pledged to address the risk of catastrophic chemical releases and to install new protective equipment and instrument systems across the sprawling refinery's 28 units. It was not clear how much progress the company had made, however, and BP spokesman Daren Beaudo characterized the OSHA issues as Unresolved. "We continue to work with OSHA to resolve these issues," Beaudo wrote in an e-mail. BP declined to say whether it had made any of the specific improvements listed in its 2010 settlement agreement, or to say how much money it had invested at the Texas City plant to meet the terms of its agreement with OSHA. A spokeswoman for OSHA said the agency remained in negotiations with the company. In an e-mail exchange, OSHA told ProPublica that the agency could not provide copies of any of the quarterly progress reports that BP had agreed to submit, and that it was "unable" to specify how many of its outstanding violations BP had addressed.