Skip to main content
site map

Click to Meet the Board

District Manager-Engineer,
Benjamin T. Porter, P.E. 
Click here to contact

Office Phone:
(408) 253-7071

Business Hours:
Monday - Friday,

In-Person Counter Service:
Monday - Friday,
10am-3pm, or by appointment

After Hours & Weekends
Emergency Response Call:

(408) 299-2507

Call Us First (408) 253-7071

 OR  AFTER HOURS (408) 299-2507


  1. your sewer "backs-up" into your house or yard.
  2. you observe a manhole overflowing.
  3. you observe anyone dumping into the sewer system.
  4. you find or smell raw sewage.
  5. you have any questions about connection to, services available, policies or procedures of the Cupertino Sanitary District.
  6. you wish to learn more about Cupertino Sanitary District.

Who's Responsible For What?
Who's Responsible For What?

Homeowner's responsibility:
The homeowner is responsible for the "House Lateral" portion of the sewer line. If a blockage occurs within the property line then it is up to the homeowner to take responsibility.

District's responsibility:
The District's responsibility begins at the "Property Line Cleanout" and continues to the "Street Lateral". The "Main Sewer" line is serviced by the City. If a "Property Line Cleanout" does not exhist the District will not be able to access our portion of the lateral and will be unable to provide any service. It is the responsibility of the homeowner to have a "Property Line Cleanout" installed.

For public reports on Sanitary Sewer Overflows (SSOs) visit 

California Integrated Water Quality System public reports website

    You must have Adobe Reader to view any of our links.

    Contact us

    20863 Stevens Creek Boulevard, Suite 100
    Cupertino, CA 95014
    Phone: (408) 253-7071
    Fax: (408) 253-5173

    Design Your Own Website, Today!
    iBuilt Design Software
    Give it a try for Free