County of San Mateo

Here's a link to a map showing the service areas of the 10 County maintained sewer districts http://publicworks.smcgov.org/sites/publicworks.smcgov.org/files/District_Map.pdf
This map will help you locate your property to determine if it is located within the sewer districts. If you're uncertain, please contact the County Public Works Department office at (650) 363-4100 for more information.

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