About West Yost Associates


West Yost is a leader in water resources and water system planning, modeling, and infrastructure design. We provide specialized technical resources in all areas of water rights and transfers, supply reliability, water portfolio planning, and water resource management encompassing surface water, groundwater, and recycled water sources. Our planning expertise ranges from regional integrated planning through distribution system optimization. We have unmatched expertise in modeling for groundwater resources and water distribution systems. Our expertise in planning and modeling brings value and knowledge into infrastructure design, which includes new treatment, storage, and distribution systems as well as system assessment, and rehabilitation.


West Yost’s expertise covers every type of wastewater facility and process, from collection and treatment systems through disposal and reclamation facilities. We provide a full service approach across the entire spectrum of disciplines including technical studies; system modeling; regulatory and permitting assistance; advanced treatment plant design; funding assistance; and construction management. Our firm’s unique ability and experience working with clients from permitting through construction bring intrinsic value to our projects and our clients. We bring knowledge gained from the permitting and regulatory process into the planning and design of facilities that meet our clients performance goals, and apply our construction knowledge to the design process to reduce cost and risk during construction.


West Yost provides a complete range of stormwater engineering services on projects ranging from drainage studies for small individual sites through regional solutions for large watersheds. Our stormwater planning and design engineers have a strong history of delivering projects that demonstrate value through innovative thinking, and significantly reduced capital costs of solutions and alternatives. Our expertise includes technical depth in storm drainage master planning, facility design; preparation of environmental impact reports addressing storm drainage, water quality, wetlands, water rights, and soil erosion; and hydrologic and hydraulic drainage system modeling.

Construction Management

West Yost’s CM team brings experience, procedures, tools, and knowledge together to proactively manage risks during construction. We have experience and knowledge on projects with construction values ranging from less that $1 million to over $220 million. Our CM and inspection services are focused on water, wastewater, and stormwater projects and our services and past experience includes construction for water and wastewater treatment plants, pipelines, pumping stations, reservoirs and storage tanks, floodwalls, and drainage facilities.

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Based on 1 review
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Well managed employee owned company
part time Senior Engineer, Davis, CA - July 5, 2014
Good office environment. Strong leaders. Good project workload.


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Davis California, United States
$17.5 Million
51 to 200
West Yost Associates website