Who We Are


Sean O’Brien works for the Brownfield Program as a Brownfield Program Coordinator under the Department of Natural Resources. Sean has been working with the Brownfield Program for the Penobscot Nation since January of 2018.

A Brownfield Program Coordinator is responsible for the management of all aspects of the Penobscot Nation Brownfields Program. Sean coordinates with Campbell Environmental Group, who are Qualified Environmental Professionals, to prepare grant applications for the EPA, and to coordinate both Phase I and Phase II field activities, assessments and remediation. He prepares Quarterly and Yearly reports to the EPA, and is responsible for the coordination of Outreach and Education to the tribal community about the Brownfield Program.

Sean has a passion to protect and enhance our natural resources and his background includes working for the Water Resources Program here in DNR during the summer and fall of 2017. He went to the University of Maine where he attained a Bachelor’s Degree in Physics and a Master’s degree in Environmental Engineering with a focus on Water Resources.