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  • Arizona Contractor & Community

McCarthy Building Companies Promotes BJ Peterson to Project Director

McCarthy Building Companies (, recently promoted BJ Peterson to the role of project director for the Southwest region. In this position, Peterson is responsible for the overall leadership and direction of the design phase services and construction execution on his projects as well as working directly with the client on their needs and maintaining an open client relationship while also ensuring project teams maintain the schedule and budget, prioritize safety and adhere to McCarthy’s strict quality standards.

He is currently overseeing the $268 Million Tomahawk Creek Waste Water Treatment Facility (WWTF) project located in Leawood, Kansas. The Tomahawk WWTF project is a 19 MGD wastewater treatment plant with capacity to treat up to 192 MGD of wet weather flows. The project includes decommissioning and demolition of the existing 7 MGD treatment plant, as well as 80 MGD diversion of wastewater flows to Missouri for the 42 months of construction. Project completion is expected in June 2022.

Peterson has been involved in several water and wastewater projects in Arizona, New Mexico, Texas and Kansas over the course of his eight years with McCarthy, including the award-winning Chandler Airport Water Reclamation Facility Expansion, San Jacinto River Authority Water Treatment Plant, Deer Valley Water Treatment Plant, Upper Fruitland Water and Waste Water Treatment Plant, and the Twin Arrows Water and Waste Water Treatment Plant.

“BJ’s demonstrated exceptional leadership both on the job and in the community, and he will excel in the role of project director,” said Justin Kelton, president of McCarthy’s Southwest region. “His infrastructure experience and in-depth experience with virtual design and construction is an asset to our team and clients.”

Peterson previously served as project manager at McCarthy. He has a master’s and bachelor’s degree in civil engineering from Brigham Young University. He is a member of the WEF Leadership Steering Committee and a WEF Leadership Institute Alumni Class of 2018. He is also a graduate of Chandler Leadership’s Class 33.

He is also actively involved in McCarthy’s philanthropic efforts and has worked on two successful charity projects in Chandler, Ariz., including converting an old hazmat trailer into mobile showers for the Interfaith Homeless Emergency Lodging Program as well as a substantial expansion at Matthew’s Crossing Food Bank, which enabled the nonprofit to partner with Chandler Unified School District on a Meals to Grow program for disadvantaged students.

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