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,
8am-5pm

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

After Hours & Weekends
Emergency Response Call:
(408) 299-2507

If you are experiencing a sewage backup, please call us at: (408) 253-7071,

or for 24 hour dispatch service after-hours and weekends: (408) 299-2507.

Please do not send an email for sewer issues, as it will not be received right away.

In-person permit counter service hours are M-F, 10am-3pm.

For in-person service outside of the daily hours, an appointment is required.

To get in touch with us, please call (408) 253-7071 or send an email to: info@cupertinosanitarydistrict.org.

Do not email us if you have a sewer backup. Call us.

The safety of our customers, employees, and families remains our number one priority and we continue to follow CDC guidelines. We thank you for your patience and cooperation during this uneasy time.

Cupertino Sanitary District

Cupertino Sanitary District provides sewer service to over 23,000 customers within the communities of Cupertino, portions of Saratoga, Sunnyvale, Los Altos and unincorporated areas within Santa Clara County.

Our Mission

To protect the public health and environment. To provide for safe and cost-efficient collection of sewage waste within Cupertino Sanitary District. To provide for effective conveyance to the Treatment Plant.

We know you’re working hard to keep yourselves healthy during COVID19 Shelter-in-Place. Help us keep our sewers healthy as well. Remember to never flush wipes, paper towels, or tissues because they clog our pump stations and the pipes! The District has 17 pump stations and it has become a major maintenance issue, resulting in significant cost increases (see photo to the right).

With the shortage of toilet paper, wipes are being used. Just remember: Save your pipes! No matter what the label says, don’t flush them – instead trash them.

Below are links to recent CA media coverage related to COVID-19 and impacts on the wastewater system:

If you have any questions, please contact us at (408) 253-7071.

Sewer backing up? Call us First !

(408) 253-7071 M-F, 8am-5pm

or (408) 299-2507, After-Hours

We will respond to sewer backup calls 24/7.
Do NOT send an email for sewer backups.

Click here for more on sewer backups.

NOTICES AND UPDATES:

NOTICE OF RATE CHANGE FOR FISCAL YEAR 2025-2026: ORDINANCE NO. 135, Amending Sections 7301, 7302, and 7303 of Chapter VII of the Cupertino Sanitary District Operations Code Relating to Sewer Service Charges

On May 21, 2025, at 7:00 PM, the Cupertino Sanitary District Board conducted a public hearing on the Consideration of Sewer Service Rate Change for FY 2025-2026. These charges are paid by residential, commercial, institutional, and industrial users of the sanitary sewer system.

At the hearing, staff proposed a rate increase not to exceed 5% for FY 2025-2026. The hearing was opened to the public for comments and protests. Seeing only three written public protests, the Board approved a 4% rate increase, effective July 1, 2025.

Click here for the full, approved Ordinance No. 135.

NOTICE OF COLLECTION OF CHARGES ON TAX ROLL: RESOLUTION NO. 1359, Providing for the Collection of Rates and Charges for Services and Facilities Furnished by the District and Delinquent Rates and Charges for Fiscal Year 2025-2026

On June 17, 2025, at 7:00 PM, the Cupertino Sanitary District Board conducted a public hearing to consider the collection of sewer service charges for FY 2025-2026 on property tax roll. These charges are paid by residential, commercial, institutional, and industrial users of the sanitary sewer system.

The hearing was opened to the public for comments and protests. Seeing none, the Board approved Resolution No. 1359 to collect sewer service charges on property tax roll for Fiscal Year 2025-2026, effective July 1, 2025.

Click here for the full approved Resolution No. 1359.

Sewer Permits and Fees

List of Registered Contractors

Maps

ANNOUNCEMENTS & UPDATES

Before You Dig...

Go online or call
two working days before you dig.

Visit http://www.usanorth811.org

or Dial 811 or 1-800-642-2444