West Yost assisted the City of Medford with their development of
using treated wastewater for agricultural irrigation. This effort
has been in response to increasingly stringent discharge
requirements imposed by DEQ for discharge of effluent to the
Rogue River. West Yost developed the facilities plan which
recommended that the City further evaluate reclaimed water
production to reduce the impact of pending TMDLs on the Rogue
River.
West Yost designed a major expansion to the City of Creswell’s
effluent reuse program. A three-mile-long force main was designed
to deliver water to a newly purchased 215 acre reuse site. A new
reclaimed water pump station was designed as part of the
treatment plant design. The pipeline included a crossing of Camas
Swale Creek for which an Army Corps of Engineers 404
permit and a State Lands Division permit were obtained.
West Yost is assisting the City of St. Helena in the development
of the best compliance solution for several outstanding
regulatory issues associated with their 0.5 mgd Wastewater
Treatment Facility (WWTF), including an evaluation of the City’s
water reuse options.
West Yost has provided services to the City
related to the assessment of the existing agricultural areas used
for irrigation reuse during the summer months when the Galt WWTP
is not discharging to the creek. These services included
assessment of potential reclamation area expansion options,
preparation of a Title 22 Engineering Report (including
coordination with CDHS staff), and preparation of a reclamation
area Land Management Plan (including the development of a
site-specific operations management tool in Microsoft Excel).
West Yost has been providing wastewater treatment and disposal
system planning and regulatory compliance services for the City
of Lodi White Slough Water Pollution Control Facility (WPCF)
since the late 1990s. This work has included several planning and
regulatory studies related to the current and future requirements
for surface water discharge, biosolids land application, and
recycled water use on agricultural properties surrounding the
WPCF and an adjacent power plant.
West Yost was originally retained by the City to perform
facilities planning, design, and construction services for a
major expansion and upgrade to the City’s Water Pollution Control
Plant (WPCP). West Yost also provided a number of services to the
City in evaluating various reuse opportunities on areas
surrounding the WPCP.
West Yost has assisted the City of Tracy in planning its water
system for over 20 years, including development of their original
Water Master Plan, creating and updating the City’s water system
model, and developing an integrated water supply plan. West Yost
is currently assisting the City in preparing a Citywide Water
System Master Plan which will encompass the City’s potable water
and recycled water systems.
