Question

Why was the Penobscot river restoration trust formed 

Answer 1

 The Penobscot River Restoration Trust is a not-for-profit organization established in May 2004 for the purpose of implementing the core aspects of the Penobscot River Restoration Project. This was quotes by : http://www.penobscotriver.org/content/4152/project-overview

So pretty much, this was so it could have a comprehensive solution to the large amounts of problem to the river! Hope this helps.