The Hall County Board of Commissioners on Thursday approved an additional $1.5 million in funding for AECOM, a firm contracted by the Army Corps of Engineers, to complete an environmental impact statement on the proposed Glades Reservoir in North Hall. The board also earmarked $150,000 for a study to determine if the northern long-eared bat, listed as an endangered species, has habitat in the project area. Finally, the board approved an extension of a consulting agreement with Joe Tanner & Associates for an additional $140,000.