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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! 



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. Please note all new construction requires District plan review.

Got Grease?

Find out what you need to do if your business has an excess of grease.


Learn about our current and future rates.

Supplemental Connection Charges

Learn more about Supplemental Connection Charges.