(Sanitary Dist Office, 10 sides, IL-84-26) in Springfield, Sangamon County, IL. I72 E. 0.6 miles from jct with I55, S. on Old Rt. 36 0.2 miles, W. on Old Rt. 36 0.75 miles to the bldg. Gate open business hours. (N39 48.033 W89 35.478) Photo 9-26-14.