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County Sanitation District No. 2-3 of Santa Clara County


Our office is now open to public. In-person permit counter service hours are Monday - Friday, 10am-3pm. For in-person service outside of the daily hours, an appointment is required.   To get in touch with us please call 408-255-2137 or send an email to 

The safety of our customer, 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.



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 pipes!

With so many people home all day now, there’s a lot of more water going down the sewer drain! Make sure to can the grease.  Pouring household grease down the drain is a major problem for us.  Our crews are working hard 24/7 to keep our systems up and running.

With the shortage of toilet paper, there is a greater potential to use wipes. Just remember: Save your sewer pipes!  No matter what the label says, don’t flush them –place them in the trash instead.




Below are links to recent CA media coverage related to COVID and wastewater impacts:



News & Announcements


The County of Santa Clara Board of Supervisors has scheduled a public hearing for Tuesday June 6, 2023, no earlier than 10:00 a.m., or as soon thereafter as the matter can be heard, to consider protests and objections to County Sanitation District No. 2-3 sewer-service charges to be collected on the County Tax Roll commencing with Fiscal Year 2023-2024. The public hearing will be held either in the Chambers of the Board of Supervisors at the County Government Center, 70 W. Hedding Street, San José; and by virtual teleconference. To attend the meeting by virtual teleconference, please review the Public Comment Instructions on the agenda on the County website at


County Sanitation District No.2-3 (CSD 2-3) performed a comprehensive sewer rate study in 2021 and the Board of Directors adopted a 3-year, phased-in increase to its sewer service charges (CSD 2-3 Ordinance No. 50 adopted on June 22, 2021). These increases are needed to meet multiple financial obligations, including, but not limited to, capital improvements and rising operation/maintenance costs of the District’s infrastructure, purchasing, or leasing supplies and equipment required as part of the foregoing obligations, and maintaining adequate reserves and solvency relating to the collection, treatment and disposal of wastewater from your residence or business

The table below is your new sewer service charges for Fiscal Year 2023-2024 (July 1, 2023– June 30, 2024). Annual Sewer Service Charges are placed on your Santa Clara County property tax statement. The charges appear on the tax statement as a single line item and are listed as “County Sanitation 2-3”. Sewer Service charges are not a property tax and are not related to the assessed value of a property. They represent a charge for a service provided. Please call or email Benjamin Porter at (408) 255-2137 or email if you have questions. Translations of this notice Espanol, Tieng Viet, Tagalog.

2020-2021 District Capital Improvement Project Update as of 2-25-2021

New sanitary sewer mainline has been installed via directional drilling on Ridgeview Way.

FY2020-2021 District Capital Improvement Project Update as of 1-27-2021

The contractor has begun performing sewer repairs via the traditional open trench method throughout the District. The District also performed survey staking for the two new sanitary sewer mains on Ridgeview Way and Chula Vista Avenue.

FY2020-2021 District Capital Improvement Project Update 

The District Capital Improvement Project for Fiscal Year 2020-2021 began on January 11, 2021. The project consists of sewer mainline rehabilitation using Cured in Place Pipe (CIPP) and traditional open trenching methods. 13 Locations have been repaired via CIPP. This project will increase the resiliency of your neighborhood’s sanitary sewer system and will help prevent sewer overflows and spills.


SMP (Sewer System Management Plan)

The District has updated the SSMP and the certification is scheduled at the Board of Supervisors meeting on March 12, 2019.  Click here for the SSMP.

Contractor Registration

For a current list of registered contractors, click here.

For instructions and application to be added to our list of registered contractors, click here.


(408) 255-2137
or after hours:
(408) 299-2507


The Santa Clara County Board of Supervisors sits as Directors of Sanitation 2-3.

Click here for Board Meeting Dates.

Two working days before you dig, go online:

Contact us
email us
20863 Stevens Creek Blvd.
Suite 100
Cupertino, CA 95014

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