Our wastewater experience is all-encompassing and includes design and construction of collection systems, treatment plants and residuals management and handling facilities. We have extensive experience incorporating the latest technologies, including advanced thermal hydrolysis process plants. Our experience ranges from routine retrofits to turn-key delivery of completely operational facilities.

• Engineering News-Record (ENR) has ranked MWH as a top five contractor in wastewater treatment plants for more than 10 years.
• Our team has designed and constructed more than 800 wastewater facilities.
• MWH was one of the first contractors to design municipal wastewater reclamation facilities so that water could be used for irrigation.