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    Central Valley Flood Management Planning Program

    MWH successfully led the on-time completion of the first-ever, State of California Central Valley Flood Protection Plan (CVFPP). Adopted June 29, 2012, by a unanimous vote of the state’s Central Valley Flood Protection Board (Board), the 2012 CVFPP provides a comprehensive plan to modernize a flood management system that protects more than one million people […]

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    Central Weber Wastewater Treatment Plant Upgrade

    This $135 million project includes engineering, design and construction management/general contractor services to design and construct a new 30-mgd activated-sludge treatment plant as an expansion to the existing facility, including all civil, structural, mechanical, electrical, instrumentation, commissioning and start up.  

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    Cerro Corona

    The Cerro Corona Mine is located within a mineral rich trend in the Hualgayoc mining district of the Andes mountain range and is owned and operated by Gold Fields, one of the world’s largest gold producers. When completed, Cerro Corona will be a single surface mine producing approximately  91 million tons of ore mined over […]

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    Chacayes Hydropower Project / Construcción Central Hidroeléctrica Chacayes

    The Chacayes Hydropower Project reduces the country’s dependence on fossil fuels while providing 300,000 homes with clean, renewable energy. MWH provided detailed engineering design services for the 111 MW Chacayes run-of-river hydroelectric project, located in the Alto Cachopoal Valley of the Andes Mountains in Chile’s central region. Located on the Cachapoal and Cipreses rivers, The […]

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    City Financial Services for Wyoming City

    One of the oldest cities in Wyoming is faced with aging water and sewer infrastructure in need of repair. For example, during line replacement projects, workers found wooden pipes that were still in service. Needless to say, there is substantial cost and work required to upgrade the system to meet the rigors of Wyoming winters […]

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    City of Cape Coral Facility/Utility Expansion (FEP/UEP) Program

    In 2001, Cape Coral city officials prepared a comprehensive utility master plan to keep pace with increasing demands in one of the country’s fastest growing cities. A major part of the City’s program was a design/CM-at-Risk Utility Expansion Program (UEP) that added 720 miles of water, gravity sewer and irrigation pipelines, 240 miles of residential […]

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    Clark County Advanced Wastewater Treatment Membrane

    Beginning in 2002, this project focused on the demonstration of the suitability of membrane filtration and ozonation in a tertiary wastewater treatment application for water disinfection. MWH completed the design in 2008. The initial demonstration phase treated 30 mgd of secondary effluent on an annual average basis, with expandability to 150 mgd ultimate capacity. The […]

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    Consolidation Feasibility Study for Rocky Mountain Region Utility

    With their wastewater treatment plant operating at capacity and drinking water source of supply drying up, one Colorado utility was presented with a series of serious challenges and one important question: Should they forge ahead alone or attempt to enter into a regional solution with their neighbor? Going at it alone would require the utility, […]

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    Corona del Mar Water Treatment Plant

    The Goleta Water District (GWD) selected MWH to design and build upgrades and modifications to the 36-mgd Corona del Mar Water Treatment Plant. The project involved upgrades and modifications to an existing 35-year-old conventional surface water treatment plant. To achieve GWD objectives, MWH implemented innovative solutions including the use of hydraulic flocculation, rapid mixing, SuperScraper® […]