As a leading U.S. contractor in water, wastewater, and industrial water construction projects, we are committed to delivering maximum value to clients and their communities. MWH history dates to the early 19th century and features some of the world’s most groundbreaking water and wastewater innovations as well as specialization in client-focused collaborative delivery methods.
Work With UsWater is critical for our lives, the earth’s ecosystems, and even our technology. With a focus on water, wastewater, and industrial water construction projects, MWH is at the center of that future. Our projects deliver clean water to millions, and we are proud to be building a better world together.
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whose effort and hard work deliver potable water to millions of people. Water and wastewater construction is a dynamic and rewarding industry with a multitude of exciting career paths to pursue. MWH is committed to fostering and investing in the growth of our employees through a culture of safety, opportunity, mentorship, and innovation. We work with you to accomplish your goals, advance your career, and have diverse jobsite experiences. We would love the opportunity to get to know you and your vision.
We know the incredible value of our trade partner’s expertise and their critical role in a project’s success. That’s why we strive to nurture positive long-term working relationships, communicate openly and often, and pay our invoices on time. We also aim for an inclusive future in construction by supporting minority-owned and women-owned enterprises.
Earlier this year, the City of Saco selected MWH as the Construction Manager at Risk (CMAR) for the $50M Water Resource Recovery Facility Upgrade project. The project consists of a new treatment building with aerobic granular sludge treatment processes, secondary filtration, and UV disinfection with upgraded grit removal and solids handling, as well as the conversion of existing clarifiers for additional stormwater storage and site grading alterations to mitigate tidal flooding from the adjacent Saco River.
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The Biosolids Digester Facilities Project (BDFP) is transcending the conventional boundaries of construction and industrial development. At its core, it’s a story of revitalizing the Bayview-Hunters Point district, a historically underserved community, through innovative apprenticeship programs, local business collaborations, and a profound commitment to community integration. The initiative’s impact extends well beyond revamping infrastructure to San Francisco’s largest wastewater treatment plant facility to benefit people and placemaking.
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2024 marks the ten-year anniversary of the completion of the Tres Ríos Water Reclamation Facility (WRF) Project. Operating as the construction-manager-at-risk on this $232 million Pima County project, MWH Constructors enhanced the plant’s capacity from 37.5 MGD to 50 MGD, transforming an outdated facility (built in 1977) into a modern wastewater plant. The upgrade and expansion of the Tres Ríos WRF provided the highest quality effluent, classified as A+ reuse, equipped with state-of-the-art technology, automation, and process controls. This streamlined operational efficiencies and increased water availability for the residents of Pima County, Arizona.
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