Water Services
Planning for the future of conservation and growth
Recycled Water
As recycled water becomes an integral part of water conservation, we are actively innovating how we maximize its use. Our teams employ new tech for plumbing evaluation, cross connection control, system conversion, and testing. We also assist clients with Title 22 recycled water treatment, planning studies, and funding, including grants.
Wastewater Collection
Our collection systems team specializes in planning, flow monitoring, and hydraulic modeling for collection systems and combined sewer/stormwater systems. They collaborate with utilities to fulfill their regulatory requirements for sewer system management plan updates and valuable recommendations to help municipalities manage their growth effectively.
Potable Water
Our water system planning team works with clients to evaluate and plan for future reliable water supplies and the water system facilities needed to efficiently deliver those supplies to customers. We develop and utilize complex hydraulic models to evaluate system operations and needs, and pair that with detailed evaluations of water supply alternatives to provide detailed recommendations and prioritized capital improvement plans to meet future water needs.
West Yost’s Water Business Sector combines diverse experiences and perspectives to assist our clients throughout the utility planning process. Our services encompass planning, modeling, and regulatory support for a range of water-related utilities, including recycled water, drinking water, and wastewater. Our team excels in master planning and is often managing multiple plans concurrently. Our team also provides comprehensive services for drinking water, addressing everything from Urban Water Management Plans to surge and transient evaluations.
Water Scope of Services
Water Resource Management • Water Supply and Distribution • Wastewater Management • Water Quality and Testing • Regulatory Compliance • Water Conservation and Efficiency • Hydrology and Hydraulic Modeling
Water Infrastructure Design • Environmental Impact Assessment
Risk Assessment and Emergency Planning • Public Outreach and Education • Technology and Innovation
Water Services Project Highlights
Wate Facilities Master Plan & 30 Modeling Projects
West Yost completed Eastern Municipal Water District’s 2015 Water Facilities Master Plan. The District anticipates significant future growth, projecting a three-fold increase in demand. To meet the District’s rapid buildout requirements, West Yost is providing on-call hydraulic modeling support with over 30 different projects completed to date.
Water & Wastewater Master Planning
Our team recently completed a Water Master Plan and a Collection System Master Plan for the City of Stockton. Both plans evaluated existing system needs and projected future water demands and wastewater flows based on the City’s recently adopted General Plan Update. Both plans included hydraulic modeling to evaluate the ability of the existing systems to meet current needs and identify needed improvements to meet future needs through buildout of the City’s General Plan.
Urban Water Managment Plans
The West Yost team prepared 21 UWMPs for urban water suppliers throughout California in 2020 and 2021. The UWMPs included water demand and water supply projections for the next 20 years, and provided drought risk assessments and water shortage contingency plans to address future dry year conditions. The West Yost team is currently gearing up for the preparation of the 2025 UWMPs which will be due to DWR by July 1, 2026.
Recycled Water Planning and Implementation Services
Our team is assisting the City of Tracy with planning and program management for implementation of recycled water system improvements to provide recycled water for landscape irrigation and as part of a potable water exchange program. Work has included master planning of needed improvements, design and peer review of recycled water facilities, grant administration and support, and program management for the expansion of the City’s recycled water facilities.
Water Team Spotlight
The Water Business Sector is a cohesive and collaborative team whose combined expertise brings value to our clients during the utility planning process.
Elizabeth Drayer, PE
Water Business Sector Leader
Amy Kwong, PE
Engineering Manager I
Rhodora Biagtan, PE
Principal Engineer II
Brenda Estrada, PE
Engineering Manager I
Patrick Johnston, PE
Principal Engineer II
West Yost Word
Grid
Engineering Resilience: West Yost’s Leadership in Nutrient Removal and RO Concentrate Management
In 1983, the State of California established the Urban Water Management Planning Act (Act) following the severe drought of 1976-1977 …
Understanding Urban Water Management Planning
In 1983, the State of California established the Urban Water Management Planning Act (Act) following the severe drought of 1976-1977 …
What is Prop 4?
California’s Proposition 4 bond, passed by voters in November 2024, will help fund many needed multiple-benefit water projects across the …
Projects
Recycled Water and Alternative Water Supply Planning
Stanford University
West Yost has advised Stanford on recycled water use opportunities on campus since 2010. As part of our work for the university, West Yost prepared a recycled water white paper that outlines potential campus-related recycled water uses, recycled water regulations, permitting issues, and water quality.
Recycled Water Support Services
City of Oceanside
Our team is assisting the City of Oceanside with recycled water projects, including retrofit plans, plan review, inspections, annual inspections, and shutdown testing services. As part of this effort, our team will prepare site conversion evaluation reports for 68 sites (300 meters). The City’s customers who recently converted to recycled water include the Goat Hill Golf Course and the El Corazon Sport Complex (18 soccer fields). As the City’s representative, our staff coordinates with the San Diego County Department of Environmental Health, the State Water Resources Control Board, and customers.
Water Master Plan and SCADA Master Plan
City of Garden Grove
West Yost recently completed the City of Garden Grove’s Water System Master Plan Update. The City, located in north central Orange County, has an 18-square-mile service area and is close to being built out. The principal challenges facing the City include aging infrastructure and capacity issues associated with older small-diameter mains. West Yost updated the distribution system hydraulic model, planned and completed a field program to collect hydrant flow test data, calibrated the model pipeline roughness values using the field data, and verified the model comparing model operations to SCADA data.
Water Master Plan Update and Collection System Master Plan Update
City of Stockton
West Yost is preparing an update to the City’s Water and Collection System Master Plans. These efforts will provide an evaluation of water system and collection system infrastructure needs. The master plans will support buildout identified in the recently updated Envision Stockton 2040 General Plan with an updated capital improvement plan. After collaborating with the City to confirm project goals, priorities, and strategies a number of tasks are planned.
