This project consisted of improvements at an existing operating wastewater treatment plant. The scope included the removal and replacement of liquid oxygen tanks, grit classifiers, pretreatment seal water system and odor control instrumentation, dewatering building lime silo, effluent building seal water system, and liquid oxygen plant instrumentation. Other improvements included effluent building storage room addition, liquid oxygen building roof replacement and interior architectural finishes, dewatering building concrete repairs, removal of pretreatment building monorail and installation of bridge cranes.