Annie Glidden Pumping Station serves portions of Northern Illinois University and western DeKalb. The station equipment had exceeded its service life and required replacement.
The existing pump systems were driven by a liquid rheostat DC drive (FloMatcher) and had a capacity of 1.43 MGD. The liquid rheostat system was replaced with variable frequency drives. The pump station capacity was increased to 4.31 MGD with the ability to add a third pump bringing the ultimate capacity to 6.11 MGD. Wemco Hidrostal with screw centrifugal pumps were chosen due to the characteristics of the waste received from NIU. The project also included new control systems, motor control and power distribution equipment, and general refurbishment.