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PC Construction and Stantec design-build team to lead Arlington County’s Re-Gen project

New thermal hydrolysis process technology will reduce greenhouse gas emissions, advance sustainability goals


PC Construction, a leading environmental design-build contractor on the East Coast, and Stantec, its lead design partner and global consulting and engineering firm, have been selected to design and construct a major biosolids upgrade project for the Arlington County Water Pollution Control Plant (WPCP) in Northern Virginia. The progressive design-build project, totaling approximately $175 million, will upgrade solids handling facilities and incorporate cutting-edge technology to sustainably transform wastewater to a renewable energy source and a nutrient-rich soil amendment.

PC and Stantec will work together to design and construct the thermal hydrolysis process (THP), pre- and post-dewatering facilities, primary and secondary anaerobic digesters, odor control, biogas treatment systems, and steam generation. THP will allow the WPCP to produce Class A biosolids that can be used as fertilizer and the resulting biogas will be captured, treated, and used as a renewable energy source.

The design-build team is a leader in these specialized facilities, combining PC’s construction experience—including the largest THP facility in the world—with Stantec’s history of designing nearly half of the world’s THP facilities. PC and Stantec are currently in the commissioning phase for WSSC Water’s Piscataway Water Resource Recovery Facility Bioenergy Project, which will be one of only five operating THP facilities in the US. 

“This is an incredibly important project for Arlington County and the community,” said Matt Cooke, president / CEO at PC Construction. “THP technology is quickly gaining traction in the US as an effective, energy efficient, and sustainable method for managing wastewater biosolids. We are excited to put our expertise in this innovative field to work to help Arlington County achieve its long-term vision.”

“The opportunity to work with Arlington County on this groundbreaking project is significant,” said Nicolle Boulay, vice president at Stantec. “The County’s priorities around sustainability align very well with Stantec’s, and we look forward to helping the County achieve its goals.”

Building on Arlington County’s Solids Master Plan, this project will help reduce greenhouse gas emissions in the region and generate negative net energy usage. Completion is projected by the end of 2029.

About Stantec
Communities are fundamental. Whether around the corner or across the globe, they provide a foundation, a sense of place and of belonging. That’s why at Stantec, we always design with community in mind.

We care about the communities we serve—because they’re our communities too. This allows us to assess what’s needed and connect our expertise, to appreciate nuances and envision what’s never been considered, to bring together diverse perspectives so we can collaborate toward a shared success.

We’re designers, engineers, scientists, and project managers, innovating together at the intersection of community, creativity, and client relationships. Balancing these priorities results in projects that advance the quality of life in communities across the globe.

Stantec trades on the TSX and the NYSE under the symbol STN. 

Learn more about water treatment and THP at Stantec.

About PC Construction
PC Construction offers general contracting, construction management and design-build services to private and public clients across the country. The company manages projects along the east coast from its headquarters in Vermont and a network of locations in Florida, Georgia, Maine, New Hampshire, New York, North Carolina and the Mid-Atlantic. From specialized buildings to complex water and wastewater treatment plants, PC is ranked annually as one of the top contractors in the country. A construction industry leader for over 65 years, PC Construction is guided to success by its team of dedicated employee-owners.

Media Contacts                                                                                   

Jessica Love
Stantec Media Relations
Ph (279) 206-1056

Nicole LaBrecque
PC Construction
Ph (802) 651-1284  

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