More than a dozen different transit scenarios will be studied before a site is selected for the Potomac Yard Metro station.

The scoping document for the environmental review process was released by Alexandria and the Washington Metropolitan Area Transit Authority on Wednesday and includes eight different station locations, a bus option and a Virginia Railway Express option, among others. The environmental review process is required by federal law.

The scoping lays out what will be considered in the draft environmental impact statement, including studies on sound, air pollution and wetland impacts.

The draft environmental study will be completed by 2013, followed by a 45-day public comment period. A final environmental document will be created beginning in mid-2013.

To read the scoping document and other information, visit

The Potomac Yard Metrorail Implementation Work Group will meet tonight, June 30, from 6:30 to 8:30 p.m. in the council’s workroom at City Hall, 301 King St., to discuss.