Shell Oil Company and its affiliated partnerships settled alleged violations of the Clean Air Act at a refinery and chemical plant in Deer Park, Texas by agreeing to spend at least $115 million to control air pollution from industrial flares and other processes, and pay a $2.6 million civil penalty. Shell also agreed to significantly modify its wastewater treatment plant, implement enhanced monitoring and repair practices at the benzene production unit, and reduce diesel emissions from government-owned vehicles which operate in the vicinity of the Deer Park complex. The government alleged that the company improperly operated 12 steam-assisted flaring devices at the plant in such a way that excess VOCs (volatile organic compounds), including benzene and other hazardous air pollutants, were emitted. The government also alleged violations of the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) and the Emergency Planning and Community Right-To-Know Act (EPCRA).