California

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    Anaheim Water Recycling Demonstration Facility

    The City of Anaheim selected MWH to plan and design a new water recycling facility to demonstrate how urban developers can utilize low impact development features in any location. The Water Recycling Demonstration Facility (WRDF), which consists of a Membrane Bioreactor (MBR), ozonation and UV disinfection, illustrates how six separate water sustainable features are used […]

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    Anaheim Water Recycling Demonstration Project

    The City selected MWH, now part of Stantec, to design the Water Recycling Demonstration Facility (WRDF), which will consist of a membrane bioreactor system, ozonation and UV disinfection. The WRDF was built in two phases with an ultimate treatment capacity of 100,000 gpd. Phase 1 of the project consisted of designing and building a 50,000 […]

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    Camrosa Water Reclamation Facility Disinfection Study

    The Camrosa Water Reclamation Facility (CWRF) provides recycled water for crop irrigation but was limited in the volume of water it could produce because the chlorine contact basins, which pre-dated the rest of the treatment facility, were not large enough to meet the default regulatory minimum contact times (CT). MWH, now part of Stantec, developed […]

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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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    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® […]

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    Disinfection By-Product (DBP) Control Program

    MWH was hired by the Antelope Valley – East Kern (AVEK) Water Agency in the Fall of 2003 to evaluate options for disinfection-by-product (DBP) control and design the improvements at their four surface water treatment plants (Quartz Hill – 90 mgd, Rosamond – 14 mgd, Eastside – 10 mgd, and Acton – 4 mgd). The […]

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    L.L. Anderson Dam Spillway Modification

    The 231-foot-high L.L. Anderson Dam (also known as the French Meadows Dam) is owned by the Placer County Water Agency (PCWA). The multi-purpose water supply and hydroelectric dam, originally constructed in 1966, diverts water from the Middle Fork American River watershed to the Rubicon River watershed to support power generation at a series of hydroelectric powerhouses, […]

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    Lenihan Dam Outlet Modifications

    A New Intake/Outlet to Regulate Flow MWH, in association with another consultant, provided design and engineering support during construction for a new inclined intake/outlet under the right abutment of the existing Lenihan Dam southwest of San Jose, California. This state-mandated project will provide an improved system to regulate flow through the dam to Los Gatos […]

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    Pure Water Program

    MWH, now part of Stantec, provides program management, preliminary design, technical support and extensive regulatory support services for the 20-year, multi-billion dollar Pure Water San Diego Program – the first large-scale surface water augmentation potable reuse program to be implemented in the US. As part of the first phase of the program, the City of […]

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    Regional Recycled Water Supply Augmentation Program

    Beginning in 2005, MWH, now part of Stantec, in close collaboration with the Metropolitan Water District (MWD), developed a strategic assessment for large-scale water reuse in the Los Angeles Basin. MWH assessed the potential for augmenting potable supplies with highly purified effluent from the County Sanitation Districts of Los Angeles County. MWH is currently designing […]