Tetra Tech, a provider of high-end consulting and engineering services, has further expanded its sustainable water management practice with the addition of Piteau Associates, based in Vancouver, British Columbia.

Established in 1976 by Dr Douglas Piteau, the firm is a global leader in sustainable natural resource analytics including hydrologic numerical modelling and dewatering system design. Its staff pioneered the development of discrete element numerical models to simulate rock mass behaviour for slope design and hydraulic integrity, Tetra Tech said.

“With the majority of its staff having advanced degrees, the Piteau team solves the natural resource industry’s most complex geotechnical and water-related challenges and has been an important contributor to key industry textbooks, scientific publications, and best practice guidelines involving applied rock mechanics, hydrogeology, hydrology and geochemistry,” the company said. “Recognised global experts on the Piteau Associates team serve on numerous technical review boards and audit and assurance teams on projects around the world.”

Dan Batrack, Tetra Tech Chairman and CEO, added: “Tetra Tech has a long history of Leading with Science® through the application of advanced analytics to water management. The addition of Piteau Associates further expands our expertise in the specialised analysis of sustainable water management and geotechnics for our commercial resource management clients.”

Mark Hawley, Piteau Associates Chairman and CEO, said: “We are excited to join the Tetra Tech family, and to add our expertise to Tetra Tech’s comprehensive scope of engineering and consulting services. We share Tetra Tech’s strong commitment to providing high quality, sustainable and practical solutions based on sound engineering, and focus on projects and developing long-term client relationships. By joining Tetra Tech, we can collaborate on highly technical multi-disciplinary projects, further our global growth strategy, and provide new opportunities for our team and a broader scope of services to our clients.”

Piteau Associates is joining Tetra Tech’s Commercial/International Services Group.