A total of 23 companies, including General Dynamics, Lockheed Martin, Textron and Fluor, agreed to pay a total of $542,000 to resolve a series of hazardous-waste dumping claims. The settlement involves wastes brought to landfills along the Pantano Wash in Tucson, Arizona, a state Superfund site known as the Broadway Pantano Water Quality Assurance Revolving Fund (WQARF) site. Complaints filed under the federal Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) and Arizona’s Water Quality Assurance Revolving Fund law accused the companies of having arranged for the disposal or transport of toxic wastes – including trichloroethylene (TCE), tetrachloroethylene (PCE), and methylene chloride – to the landfill area from 1945 until the early 1970s. As part of the settlement, General Dynamics agreed to pay $150,750.