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Call Us First!

(650) 321-0384

If you have a sewer emergency or sewer related problem, please Call Us First, day or night at (650) 321-0384. Our reporting line is open 24/7. Thank you! 

Residents Mailbox


West Bay Sanitary District provides wastewater collection and conveyance services to the City of Menlo Park, Atherton, and Portola Valley, and areas of East Palo Alto, Woodside and unincorporated San Mateo and Santa Clara counties.

Forms & Permits Information

Find information to annex, get permits, and more.


Learn about our current and future rates.

Got Grease?

Find out what you should do if you have an excess of grease.

Pool Owners!

Find information about pool discharge.

Your Sewer Guide

Step by Step Guide to Rehabilitating your private sewer lateral pipe.


Learn about what is an easement.

Sewer Line Protection

Get access to Home Emergency Insurance Solutions.