About WWD


About WWD
Services and Billing
Establishing Service
Sanitary Sewer
Water Quality
District Specifications
Emergency Information
District Staff
Board of Directors
Board Meetings
Contact Us



  • The Westborough Water District (WWD), formerly known as the Callan Park County Water District was incorporated as a county water district in 1961.  The authorizing statue that allowed the WWD to be formed falls under the California Water Code, section 30000.

  • The WWD is a Special District.  What is a Special District?  A Special District is a form of local government created by the Westborough community to meet a specific need. Special Districts have four basic characteristics:

  • A form of government

  • Governed by a board

  • Provides services and facilities

  • Has defined boundaries

    The WWD has approximately 4,000 residential, commercial and irrigation service connections.  Since the first operation, the WWD has purchased 100 percent of its water supply from the City and County of San Francisco Water Department.  The WWD service area covers approximately 1 square mile (West of 280 to Skyline Boulevard and South of King Drive in Daly City to San Bruno) and serves approximately 12,000 customers.  The WWD has inter-ties connections with the North Coast County Water District (Pacifica) and the City of Daly City for emergency water service.  The WWD is governed by an elected 5 member board.  Board members are required to be residents of the WWD and registered voters.  The WWD has over 24 miles of water lines, uses an average daily consumption of 1 million gallons a day and has 3 steel water storage tanks.  The WWD has a total of 6.3 million gallons of water storage.  All of the WWD's water comes from the Hetch Hetchy and local reservoirs.  Also, the WWD owns the sanitary sewer system.  Under an agreement, the sewer system is maintained by the North San Mateo County Sanitation District (City of Daly City).  The WWD has an emergency stockpile of pipe, fittings and materials to perform repairs to the water system.  In addition, the WWD is able to perform most emergency repairs using WWD staff without the delay of using outside contractors.  The WWD office is located at 2263 Westborough Boulevard, South San Francisco, California 94080.

    Click here for a Map of the District Service Area

    Click here for Directions to WWD Office


    On January 31, 2016, the Westborough Water District was awarded the Transparency Certificate of Excellence by the Special District Leadership Foundation (SDLF).  The District's Transparency Certificate of Excellence is effective until January 31, 2018.  After that, the District will have to apply for renewal.

All SDLF programs are dedicated to promoting excellence in special district governance and operations throughout California.  Some of the basic requirements for the certificate include: current Ethics Training for all board members, compliance with the Ralph M. Brown Act, adoption of policies related to handling Public Records Act requests, conflict of interest policy, filing financial transactions and compensation reports to the State Controller in a timely manner, etc.


SB 272 Compliance Information


Senate Bill 272 - California Public Records Act

Approved by California Governor Jerry Brown on October 11, 2015, Senate Bi11272 adds a section to the California Public Records Act requiring state and most local government agencies to create a catalog of Enterprise Systems by July 1, 2016, with annual updates.

Enterprise System

An Enterprise System, as defined by Senate Bill 272, is a software application or computer system that collects, stores, exchanges, and analyzes information an agency uses that is both of the following:

  • A multi-departmental system or a system that contains information collected about the public.

  • A system that serves as a 'system of record' or an original source of data within an agency.

  • Enterprise systems do not include cybersecurity systems, infrastructure and mechanical control systems, or information that would reveal vulnerabilities to, or otherwise increase the potential for an attack on, a public agency's IT systems. 

    The District maintains a number of enterprise information systems that are required to be disclosed under SB272.  The following link contains the required information about these systems.

    Westborough Water District SB272 Enterprise Catalog

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Last modified: 04/30/18.