Location: Sacramento County, United States
Region: Americas
Service Offering: Engineering & Design, Sustainability & Climate Change
Market Sector: Water & Wastewater
Client Type: Local & Regional Government
Status: Complete
MWH provided preliminary and final design as well as engineering services during construction for the Vineyard Surface Water Treatment Plant. Built as part of SCWA’s conjunctive use program, the aim was to reduce dependency on local groundwater resources by building a surface-water treatment plant that provides high-quality drinking water from the Sacramento River.
The 50-mgd Vineyard Surface Water Treatment Plant, with expansion capabilities up to 100-mgd, uses conventional surface-water treatment processes including flash mixing, coagulation-flocculation, filtration, and chlorination for disinfection. The plant’s solids handling processes minimize waste-stream flows to the sanitary sewer while optimizing treated-water quality. A sludge lagoon provides a drying bed for solids produced by the centrifuges, reducing water content by 50% before landfill disposal. A fish-gate capture system at the flow-control structure monitors performance of fish screens at the intake on the Sacramento River.
MWH has designed the administration/operations building and process areas to achieve LEED® Gold certification as established by the U.S. Green Building Council. LEED certification is based on a number of green design and construction features that positively impact the project and the broader community. The plant’s 38,000-square-foot administration and operations building features extensive use of natural lighting, reduced use of water, on-site solar panels, and computer-controlled lighting heating, ventilation and air conditioning systems. The design team specified sustainable products with low VOCs, and achieved an overall 20% recycled materials content. Consistent with the region’s heritage, the plant’s administration and operations building design incorporates Tuscan-style architecture and landscape features.