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
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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.
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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.
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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 PUBLIC HEARING TO CONSIDER RATE CHANGE FOR FISCAL YEAR 2026-2027:
On May 20, 2026, at 7:00 PM, the Cupertino Sanitary District Board will conduct a public hearing on the Consideration of Sewer Service Rate Change for FY 2026-2027. These charges are paid by residential, commercial, institutional, and industrial users of the sanitary sewer system.
At the hearing, staff will propose a rate increase not to exceed 5% for FY 2026-2027. The hearing will be open to the public for comments and protests. If approved, the new rates will become effective July 1, 2026.
The hearing will take place at the District office located at 20863 Stevens Creek Blvd. Suite 100, Cupertino CA 95014, and via Zoom. Anyone interested may attend in person or online. The Zoom link will be posted on the District website 72 hours prior to the public hearing. If you require a disability-related modification or accommodation to participate in a CUSD public meeting, please call the Office of the District (408) 253-7071 at least 48 hours in advance.
Click here for the full public hearing notice and proposed rates.
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