In January 2013 Tsongas introduced the Nashua River Wild and Scenic River Study Act (H.R. 412; 113th Congress), a bill that would amend the Wild and Scenic Rivers Act to designate certain segments of the Nashua River in Massachusetts for study for potential addition to the National Wild and Scenic Rivers System. Tsongas discussed the river's history and past pollution problems in her testimony about the bill. She argued that the study would allow stakeholders to work together to "ensure that it remains a great place for canoeing, fishing, and enjoying the outdoors."
