This is an Administrative Order on Consent (AOC) under CERCLA 122(g) resolving the potential liability under CERCLA 107 and RCRA 7003 of 192 de minimis generators of waste containing hazardous substances that was disposed at the Casmalia Resources Superfund Site. The AOC concerns costs incurred or to be incurred in response actions at the Site, estimated at approximately $284 million. The 192 parties collectively sent 113 million pounds of waste to the Site, representing 2.54% of the total Site waste. The settlement requires the parties to pay EPA $11.9 million in response costs. The settlement also resolves the liability for response costs and potential natural resource damages of these 192 parties to the federal Natural Resource Trustees at the Site (the U.S. Department of Interior on behalf of the Fish & Wildlife Service, the U.S. Department of Commerce on behalf of the National Oceanic & Atmospheric Administration, and the U.S. Air Force). Casmalia is a former hazardous waste disposal facility that accepted approximately 5.6 billion pounds of waste from nearly 10,000 generators between 1974 and 1989. EPA has documented the release of hazardous substances into the environment at the Site, and has been responding to conditions at the Site since 1992. This settlement is one of a series of cashout settlements with major and de minimis parties intended to provide funding for the continuing response actions.