(Addus Healthcare, 35', IL-82-07) in O’Fallon, St. Clair County, IL. US50 E. 0.5 miles from jct with I64 exit 14, continue W. (left) on State St. 1.9 miles, N. on Carson Dr. 150’ to the bldg on the W. side of the road at 101. (N38 35.540 W89 53.933 Photos by Jack Schmidt 5-6-09.