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MWH, now part of Stantec, is comprised of global offices in 35 countries and operating on six continents. Choose a regional site highlighting local services, experience and experts.

We are a global, full-service consulting, engineering and construction company. Choose a site below that highlights special service offerings or markets in which we serve.


Recently Minería Pan Americana spotlighted a project, Cerro Verde, which MWH has been involved with in Arequipa, Peru. The project “will significantly improve water quality, reduce health and environmental risks for the local community and allow farmers to sell their produce internationally for a higher price.” This new wastewater treatment plant is the most advanced plant the country has seen. We invite you to read the full article, written in Spanish, on the project.

Arequipa wastewater MWH