About

Learn about Silicon Valley Clean Water Investor Relations, including Recently Completed Projects and Executive Management.

Population Served
200,000
Debt Outstanding
$344 million
A Joint Powers Authority
3 cities, 1 special district

About Silicon Valley Clean Water

SVCW is a California Joint exercise of Powers Authority (JPA) that provides wastewater transmission, treatment, and effluent disposal to the cities of Belmont, Redwood City, and San Carlos, as well as the West Bay Sanitary District (collectively, the “Members”). All Members are located in the northern part of Silicon Valley between San Francisco and San Jose. SVCW serves more than 200,000 Bay Area people and businesses including Facebook, Oracle, and EA Sports.

Members each own and operate separate sanitary sewer collection systems for their respective communities. SVCW is governed by the elected representatives designated by Members to serve on the SVCW Commission. Key Commission authorizations include hiring and retaining the SVCW Manager, as well as the approval of operating and capital budgets, large expenditures and contracts, and issuance of debt. 

SVCW owns the pipeline and pump stations to carry sewage to its wastewater treatment plant (WWTP) located adjacent to the San Francisco Bay. The existing conveyance system is approximately 40 years old and includes four pump stations, a wet-weather booster station, a lift station, and a nine-mile reinforced concrete forcemain. Additionally, SVCW leases a remote Flow Equalization Facility from West Bay Sanitary District.

SVCW capital costs are allocated per Members’ owned share of SVCW treatment capacity, as follows:

  • City of Redwood City                    48.57%  
  • West Bay Sanitary District           26.84%  
  • City of San Carlos                          15.14%
  • City of Belmont                                9.45%

To protect the health and environment of the communities it serves, SVCW has launched its Regional Environmental Sewer Conveyance Upgrade (RESCU) Program. RESCU will replace or rehabilitate key infrastructure including all pump stations, 3.3 miles of conveyance pipeline, and headworks facilities.

Recently Completed Projects

48-inch Pipeline Replacement

The 48-inch pipeline project was completed in November 2015 to resolve recurring leaks on a 2.5-mile pipeline between the Redwood City Pump Station and the San Carlos Pump Station. Due to the original pipeline design, which included single O-ring bell and spigot-jointed concrete pipe installed in Young Bay Mud, the 48-inch pipeline was experiencing upwards of 75% of all leaks in SVCW's conveyance system. To remedy the situation as quickly as possible, final design for the installation of the 48-inch replacement commenced in 2012.

This new section of force main involved unique challenges and complexities including a variety of jurisdictions and land ownership; unusually challenging and variable soil conditions; three water crossings; environmentally sensitive bay lands; urban congestion; and maintaining continuous functionality of the conveyance system. Construction was completed in 2015 using traditional and trenchless microtunnelling construction methods.

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Cogeneration

SVCW installed two new cogeneration engines that operate using biofuel (methane gas) to produce electricity and heat, associated biofuel treatment system, electrical components, structural modifications, Supervisory Control And Data Acquisition (SCADA) programming, and piping/valves. SVCW’s new cogeneration engines replaced an engine that had reached the end of its useful life. 

Operating since January 2015, Cogeneration supplies electricity to process equipment and reduces the electricity SVCW purchases from Pacific Gas and Electric Company (PG&E). Heat from the engines is used to warm digesters and buildings to reduce natural gas purchased from PG&E. 

By consistently producing over 60% of the treatment plant's electrical demand, estimated annual savings from cogeneration is $1.1 million in fiscal year 2017-18.

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Operations Control Building

The Operations Control Building was completed in 2012. Funded through bonds and a State Revolving Fund loan, it replaced the original control building built in 1980. 

The new building consolidated management and operational leadership, upgraded technology solutions, and created a state-of-the-art control center.

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Effluent Outfall Pipeline

Final effluent from SVCW's treatment plant is pumped from the main structure and discharged into the San Francisco Bay through a diffuser near the San Mateo Bridge. The original pipe between the main structure and the levee was built in 1980 and found to be irreparably leaking in March 2015.

Diver investigations of the old concrete pipe joints identified varying degrees of gaps beyond what would be expected normally, making it difficult to identify a single specific leaking joint. The location of the pipe was extremely challenging and delicate, and required the segment to be bypassed. Additionally, work was further complicated by the presence of young bay mud substrate that requires a cofferdam shoring system.

The repair replaced the entire length of reinforced concrete pipe from the main treatment structure to the levee with a new, continuous fused section of 63-inch High-density Polyethylene (HDPE) pipe. Using an approach to bring a new pipeline onto the treatment plant property shortened the length of the project and significantly reduced its overall cost.

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Executive Management

Teresa Herrera

SVCW Manager

(650) 591-7121

therrera@svcw.org

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Matt Anderson

Assistant Manager / Chief Financial Officer

(650) 591-7121

manderson@svcw.org

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Monte Hamamoto

Chief Operating Officer

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Kim Hackett

Authority Engineer

(650) 591-7121

khackett@svcw.org

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