Expanding Critical Wastewater Infrastructure

Client & Context

As Henry County continues to undergo rapid population growth, local infrastructure must grow with it. The Walnut Creek Wastewater Treatment Plant expansion was designed to increase treatment capacity and support the long-term needs of the community — adding four new facility buildings to an active, continuously operating plant that serves thousands of residents every day. 

Working alongside Archer Western and PC Construction, Corvant provided complete HVAC and mechanical system installations across four buildings. The project required dependable environmental control systems to support critical plant operations while delivering the reliability and long-term performance expected from essential public infrastructure. 

The Challenge

Wastewater treatment facilities operate around the clock, and the environments inside them are among the most demanding in public infrastructure. Corrosive air, high humidity and the need for precise environmental control in laboratory spaces, electrical rooms and process support areas create mechanical requirements above and beyond standard commercial construction.  

Each of the four new buildings required different HVAC systems tailored to its specific operational function. Every system had to be coordinated across an active construction site, installed correctly the first time and ready to perform reliably from day one while providing facility operators with the controls and flexibility essential for long-term operation. 

Our Approach

Corvant worked closely with Archer Western and PC Construction to develop a coordinated installation plan across all four buildings, sequencing work to maintain construction progress while ensuring each system was correctly specified and installed for its environment.  

The scope included CRAC units, split systems, mini-split systems, VAV boxes, unit heaters, wall-mounted exhaust fans and complete Building Automation System controls. Each system was selected and installed to support the specific operational and environmental needs of the spaces it served while offering efficient performance and simplifying long-term maintenance. 

The Outcome

The Walnut Creek expansion was delivered on schedule with fully operational HVAC systems across all four buildings — each performing to the specific requirements of its space and integrated into a single Building Automation System that gives facility operators complete visibility across the campus. 

For Henry County, it means energy-efficient infrastructure built to support continued growth and serve the community reliably for decades to come. For Corvant, it’s another demonstration of the specialized knowledge and execution discipline that utility and public infrastructure projects demand.