West Yost provided planning, design, and construction
management for the Ophir Road Pump Station. This pump
station constructed about a mile upstream and 210 feet
above the Auburn Tunnel outlet, allows Placer County Water
Agency (PCWA) to pump water from the tunnel for municipal
and agricultural use. It is designed to pump 332 cfs of
water through three distinct pump stations, housing 11 vertical
turbine pumps ranging in size from 200- to 600-hp.
West Yost designed a new 4-MG potable water storage tank and
booster pump station for the City of Davis. Project
components included a prestressed concrete tank, pump station
building, chlorination facilities, perimeter fencing,
landscaping, offsite utilities, and SCADA. Related issues
included locating a potential cell tower on the tank site and
providing for future delivery of treated surface water to the
water storage tank.
West Yost is assisting the Woodland-Davis Clean Water Agency in
an Owner’s Representative capacity for the program and
Design-Build-Operate (DBO) procurement contract management, water
rights acquisition, public outreach, environmental permitting and
preliminary design of a new regional surface water supply
project. The project will consist of a diversion intake facility
on the Sacramento River, a conveyance pipeline from the intake to
a new 40-mgd capacity water treatment plant, and a pipeline
distribution system to the participants’ service areas.
Construction on the new facilities is expected to begin in 2013
and be completed by 2016.
In the early phases on the Davis Woodland Water Supply Project,
the timeliness for pursuing the existing area-of-origin water
right was critical. West Yost assisted in driving the application
through the process, including testifying at the hearing to the
State Water Resources Control Board. After this water right was
secured, additional water was still needed in key summer months
to address shortages due to Term 91 conditions.
West Yost began working with Conaway Ranch to get an early
start on developing a water transfer program, identifying key
technical and policy issues, opening discussions with DWR and
USBR staff, and holding preliminary discussions with potential
buyers.This successful transfer of 12,000+ acre-feet of water was
accomplished through savings of crop water consumptive use,
through a combination of land fallowing and shifting to crops
with lower water use. West Yost developed a
comprehensive Conaway Ranch land and water use plan based on farm
economics and practices. A key part of this project was
maintaining wildlife-friendly agriculture – a hallmark of Conaway
Ranch.
Due to increased demands, the City needed to obtain additional
water supplies to supplement two existing sources. West Yost
assisted the City with initial meetings with potential supplies,
initial water transfer assignment agreements, and follow-up,
leading to a 5,000 acre-feet annually (afa) of contract water
with an option for an additional 2,500 afa.
West Yost is working with the six county Northern Sacramento
Valley Regional Water Management Group (NSV RWMG) on their first
collaborative Integrated Regional Water Management Plan (IRWMP).
Prior to the commencement of the current project in October 2011,
West Yost developed options for a regional planning governance
structure (including the governance structure adopted by the
client), prepared a technical memorandum of future project
financing options, prepared a successful U.S.
West Yost prepared a Region Acceptance Process (RAP) grant
eligibility application and submitted it to DWR on behalf of the
Westside Region member agencies, which include the Water
Resources Association of Yolo County (WRA), Solano County Water
Agency, Napa County Flood Control and Water Conservation
District, Lake County Watershed Protection District, and Colusa
County Resource Conservation District (RCD).
West Yost provided an update and refinement to the Fresno
Metropolitan Water Resources Management Plan (Metro Plan), which
includes a key focus on conjunctive use for long-term supply
reliability and sustainability.
West Yost prepared a Water Supply Master Plan using an
integrated approach for water supply planning that addresses
demand management, supply management, and infrastructure master
planning. This project involves ongoing coordination with the
City’s advisory committee to hear and comment on the plan at each
stage of development, from analysis of demands and projections
regarding future conservation to development of modeling
scenarios and recommendations.
West Yost developed the City of Redwood City’s Water Distribution
System Master Plan, including development of a new, comprehensive
distribution system hydraulic model.
The master plan elements included projecting water demands;
evaluating the distribution system’s hydraulic capacity, water
quality, emergency reliability, and seismic vulnerability;
developing a long-term pipeline replacement strategy; and
formulating an effective, prioritized CIP.
Over the past decade, West Yost has completed the water system
Hydraulic Model Update Project and numerous comprehensive water
supply planning studies for the City of Modesto,
including the South Modesto Interim Water Supply
Study, the 2005 and 2010 Urban Water Management Plans, water
system capacity studies, as well as preliminary design/design of
critical distribution system improvement projects. The primary
focus of these projects was the improved integration of existing
groundwater and new treated surface water supply systems.
West Yost is developing a groundwater model for eastern Nevada
and western Utah. The work is being conducted jointly for the
U.S. Fish and Wildlife Service, U.S. Bureau of Land Management,
National Park Service, and U.S. Bureau of Indian
Affairs. The model covers an area of about 25,000 square
miles. The model will be used by theses agencies to assess
the impacts of proposed groundwater exports from the model
area.
West Yost is responsible for managing and directing technical
work associated with the feasibility of implementing an aquifer
storage and recovery (ASR) program for the City. This program
involves the injection of treated surface water (when available
during the winter months) into the groundwater basin for storage
and later extraction during peak demand periods or dry years.
West Yost is currently providing hydrogeologic consulting
services for investigation and aquifer performance testing of the
Lower Tuscan Aquifer as part of the Stony Creek Fan Conjunctive
Water Management Program, a multi-year research program in Glenn
County. The study will help characterize the extent, hydraulic
properties, water quality and sources of recharge in the Lower
Tuscan Formation and related parts of the aquifer system.
West Yost designed a new 4-MG potable water storage tank and
booster pump station for the City of Davis. Project
components included a prestressed concrete tank, pump station
building, chlorination facilities, perimeter fencing,
landscaping, offsite utilities, and SCADA. Related issues
included locating a potential cell tower on the tank site and
providing for future delivery of treated surface water to the
water storage tank.
West Yost provided planning, design, and construction
management for the Ophir Road Pump Station. This pump
station constructed about a mile upstream and 210 feet
above the Auburn Tunnel outlet, allows Placer County Water
Agency (PCWA) to pump water from the tunnel for municipal
and agricultural use. It is designed to pump 332 cfs of
water through three distinct pump stations, housing 11 vertical
turbine pumps ranging in size from 200- to 600-hp.
West Yost has completed preliminary design and is completing
final design of two major water transmission mains for the City
of Fresno. An alignment study for the two transmission
mains (24- and 36-inch diameter pipes) was required to minimize
community and environmental impacts, and assure a cost effective,
constructible project. The alignment study included detailed
analysis for numerous crossings and evaluation of
construction methods. Potential crossings include: Highway 99,
Highway 168, Fresno Street, the railroad, and two irrigation
canals.
West Yost provided construction management and inspection
services for this $38 million water treatment plant improvements
project. The three-year construction management project expanded
the Jamieson Canyon WTP from 12 mgd average/16 mgd maximum to 20
mgd average/24 mgd maximum capacity. West Yost’s CM team included
construction management, resident engineering, inspections, and
administrative services, as well as support expertise in process
engineering, scheduling, and cost estimating.
West Yost provided planning, design, and construction
management for the Ophir Road Pump Station. This pump
station constructed about a mile upstream and 210 feet
above the Auburn Tunnel outlet, allows Placer County Water
Agency (PCWA) to pump water from the tunnel for municipal
and agricultural use. It is designed to pump 332 cfs of
water through three distinct pump stations, housing 11 vertical
turbine pumps ranging in size from 200- to 600-hp.
West Yost provided hydraulic analysis, predesign, design, and
construction management and inspection for the
award-winning, Stoneridge Water Storage Facility. The
project consists of a 2.9 MG prestressed concrete,
partially buried, tank and associated inlet/outlet piping,
control valves, drains, and site improvements.
