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Racine WWTP Expansion and Upgrade

City of Racine, Wisconsin

Waste Management
Facilities planning, Clean Water Fund financing, Design

Project Location:  Racine, Wisconsin

Design Capacity:  36 mgd

Construction Cost: $45 million


ATI provided planning, design, and construction services to expand the WWTP to 36 mgd to 10 communities for the next 20 years. Influent wastewater enters the existing treatment plant through one of two 72- inch interceptor sewers. The influent diversion structure was modified to allow flow, in excess of 106.7 mgd, to be diverted to both an existing and one new stormwater clarifier. Keith Haas, the General Manager for Racine Wastewater Utility, would go on to say “After the contractor and engineers have left the project we are the ones that are left with the task of making it work. Since my staff had key input every step of the way and the engineering’s appreciated and incorporated their suggestions, I believe the operation and maintenance of the completed project will be a success story.”


New anaerobic digester
New digester covers and mixers
Two gravity belt thickeners
Six belt filter presses
Truck loading system
Plant-wide SCADA system