Original sentence: A federal probe also targeted the PVTA, resulting in the firing of director Gary Shepard in 2006.A recent audit has revealed that the PVTA made more than $10 million in accounting errors during 2005.They may owe the government as much as $4 million.This investigation focused on the spending and contracting practices of the PVTA, as well as oversight of the $115 million redevelopment of the Union Station transit and retail hub in Springfield
Edited sentence: A federal probe in 2006 also targeted some PVTA employees.An audit in 2005 revealed that the PVTA made approximately $10 million in accounting errors on a transportation development project at Springfield's Union Station.Initial reports said PVTA could may owe the federal government as much as $4 million.Subsequently, Administrator Gary Shepard resigned in 2006 after being put on leave by the Advisory Board, but he was never charged with any offense.That amount was reduced in 2009 to less than $1 million