Project–At–A–Glance

WSIP Region
Sunol Valley

Location
Sunol Valley, Alameda County

Construction Start
April, 2009

Construction Finish
July, 2011

Current Status
Design

Project Cost
16M

The San Antonio Pump Station pumps water from the San Antonio Reservoir to the Sunol Valley Water Treatment Plant when it cannot flow by gravity; and it pumps Hetch Hetchy transmission system water to either San Antonio Reservoir or the Sunol Valley Water Treatment Plant when it does not meet water quality standards for delivery or is required for reservoir replenishment. San Antonio Pump Station is required to have 160 million gallons of water per day sustainable capacity including during periods of power outages. Therefore, to ensure that the pump station improve the seismic safety and delivery reliability of the water system in Sunol, the SFPUC proposes to upgrade the San Antonio Pump Station. The project is provided in response to the Water Supply and Delivery Reliability level of service goals.

Description
The proposed project consists of:

• Replacement of the casings on three 1,000-horsepower electrical pumps, or replacement of the pumps if more cost-effective.
• Addition of two 1.5-megawatt emergency generators installed in a sound-attenuated masonry wall enclosure. The generators are sized to power the three electric pumps.
• Seismic retrofit of the pump station to reinforce the walls, make foundation improvements, and connect the roof to the walls.

Note: Schedule and cost information shown may vary from the 2007 Approved WSIP Schedule and Budget. The information shown reflects the current forecast information published in the latest WSIP Quarterly Report.