The Environmental Protection Agency (EPA) Region 1 announces the deletion of the Hatheway & Patterson Superfund Site (Site) located in Mansfield and Foxborough, Massachusetts, from the National Priorities List (NPL). The NPL, promulgated pursuant to section 105 of the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) of 1980, as amended, is an appendix of the National Oil and Hazardous Substances Pollution Contingency Plan (NCP). The EPA and the Commonwealth of Massachusetts, through the Massachusetts Department of Environmental Protection (MassDEP), have determined that all appropriate response actions under CERCLA, other than operation and maintenance, monitoring, and five-year reviews, have been completed. However, this deletion does not preclude future actions under Superfund.