The College of DuPage has paid a member of its foundation board $630,000 to design and install signs over the last four years without ever receiving a competitive bid for the work, The Chicago Tribune reported. Further, TheTribune found that the contracts reference the work of Carla Burkhart, the board member, as an architect, but she isn't one and her company doesn't offer architecture services. Burkhart has denied any wrongdoing. After receiving questions from The Tribune, the college's board chair ordered a review of contracts. According to documents obtained by The Tribune, 10 of the foundation's 22 board members work for companies with financial ties to the College of DuPage.