The Millennium Bulk Terminals coal-export proposal in Longview would bring up to eight coal-carrying trains of 125 cars each through Vancouver every day, according to new information included in a state environmental review released Friday.

Release of the massive study is a major step for the project that was first proposed in 2010. It found, among other things, that the terminal “could result in a significant adverse impact on rail safety in Cowlitz County and Washington state.” But on coal dust, a major concern of terminal opponents, the review states: “Implementation of the mitigation measures described above would reduce impacts related to coal dust. There would be no unavoidable and significant adverse environmental impacts from coal dust.”

The Department of Ecology will be taking public comment on the draft environmental impact statement through June 13.

Millennium wants to ship up to 44 million tons of coal from Montana, Wyoming, Utah and Colorado to Asian markets every year from a rail-to-marine terminal along the Columbia River. The project would generate up to 135 permanent jobs, according to the review.

According to the draft environmental impact statement, the first phase could come online in 2020 with two trains per day, increase to five trains per day in 2021 and reach eight coal trains per day rolling through the Columbia River Gorge and Vancouver in 2024. Empty trains would be routed back east through Stampede Pass south of Seattle, though routes could be changed so as many as eight empty trains per day head back through Vancouver.