Madison County plans 4 sites for needle-exchange program Two of the sites would be in Anderson, one in Alexandria and one in Elwood Check out this story on The Madison County Health Department wants to have four needle-exchange sites open by late July or early August 2015. ANDERSON – Health officials are working to open four needle-exchange sites in a central Indiana county after being granted state approval for the program because of disease being spread among intravenous drug users.