McCarthy Building Companies Awarded Phase III of the Greenfield Water Reclamation Plant Expansion
PHOENIX, AZ The Southwest division of McCarthy Building Companies, Inc. was awarded a contract by the city of Mesa, Arizona, town of Gilbert, Arizona, and town of Queen Creek, Arizona, for the preconstruction and construction services for the Phase III Greenfield Water Reclamation Plant Expansion project, located at 4400 S. Greenfield Road in Gilbert, Arizona. This project represents a 14-million-gallon-per-day (MGD) expansion of liquids and solids treatment that will allow the facility to treat up to 30 MGD of liquids on a maximum monthly basis.
The three municipalities jointly own the treatment plant while the city of Mesa maintains and operates the plant. The original plant opened in 2007 and was constructed by McCarthy Building Companies in a joint venture with Sundt Construction.
Throughout the plant expansion construction, all elements of the plant will remain operational and capable of producing A-plus reclaimed water for the municipalities it serves. The treatment processes at the Greenfield Water Reclamation Plant consist of grit removal, primary clarifiers, activated sludge basins with aerobic and anoxic zones for Biochemical Oxygen Demand (BOD), Total Suspended Solids (TSS), and nitrogen removal, secondary clarifiers, filtration, disinfection, and anaerobic digestion producing Class B Biosolids used as fertilizer.
While expanding the treatment capacities, this project will also enhance operations of the plant, including replacement, repair and rehabilitation of aging equipment.
"We are looking forward to our role as Construction Manager at Risk on this project and to collaborating with the municipalities' team members and the project engineer during the design stages to maximize cost savings while maintaining the quality of the project," said Joe Brunsman, Business Unit Leader of McCarthy's Infrastructure group.
Carollo/Brown and Caldwell is serving as the project engineer and the city of Mesa, town of Gilbert, and town of Queen Creek expects local subcontractors to be utilized for this large-scale expansion. The anticipated construction start date of phase III of the project is in spring 2017 with completion slated for late 2019.