MONTPELIER, Vt. — Vermont Attorney General Thomas J. Donovan Jr. has filed a motion to intervene as a party in the Vermont Public Service Board’s review of the sale of Vermont Yankee.

Vermont Yankee’s owner, Entergy, is requesting the board authorize the sale of the nuclear power plant and its decommissioning trust fund to New York-based NorthStar Group Services Inc.

In a news release, the Vermont Attorney General’s Office said its filing “identifies significant environmental and financial issues that are at stake in this case. The sale impacts not only ratepayers, but all Vermonters, given the magnitude of the clean-up required to restore Vermont Yankee to unrestricted use.”

The filing notes the Attorney General’s Office is also fighting before the U.S. Nuclear Regulatory Commission against Entergy’s use of the nuclear decommissioning trust fund for purposes unrelated to the plant decommissioning itself.

“At first glance, it looks like a good deal if it will get the site cleaned up faster,” Donovan said of the proposed sale in the news release. “But we need to really kick the tires and make sure the new company is going to be able to clean up the site. My office is going to look at this deal closely, with an eye toward ensuring that the site is fully cleaned up, and without any costs falling on the Vermont taxpayer.”

The Attorney General’s Office said it plans to work closely with the Department of Public Service and the Agency of Natural Resources in the board proceeding.

Vermont Yankee shut down in December 2014.