text: Environment In May 2011, toxic chemicals such as nitrogen dioxide and hydrochloric acid were unexpectedly released at the company's titanium plant on Johnson Creek Blvd, Portland, Oregon. Although four people were hospitalized, nobody was permanently injured from the fumes. Firefighters had difficulty shutting down the plant.
  The Toxic 100 Air polluters index from the University of Massachusetts listed Precision Castparts as the number one air polluter in the U.S. in the August 2013 edition, which the company called a flawed study.
  Financials
  *In millions of US dollars.
  Listed on the New York Stock Exchange as PCP, the company was part of the S&P 400. In 2007, Precision was moved to the S&P 500 stock index. As seen in the table above, PCP's revenue increased by 52 percent in 2007, to $5.4 billion from $3.5 billion in 2006. Total debt increased by 29 percent, from $677 million in 2006 to $873 million in 2007. The increases in revenue and debt were due in part to a pair of acquisitions in February 2007: GSC Foundries, Inc. (GSC), formerly a competitor to PCP in producing aluminum and steel structural investment castings, and Cherry Aerospace LLC (Cherry), a manufacturer of aerospace blind rivets and blind bolts.