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About Us
Residents
Businesses
Permits & Fees
Rates
Meetings
- Board & Committee Meeting Agendas
How Do I?
Contact

Union Sanitary District Homepage

This page is home for Union Sanitary District!

Contact Union Sanitary District by Email

The ContactUSD email is not for solicitation purposes (see: Doing Business with USD).

If you request a response through the ContactUSD email, we will respond within 3 business days. PLEASE NOTE: The ContactUSD email account is NOT monitored on weekends or holidays.

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Union Sanitary District provides wastewater collection, treatment, and disposal services to Fremont, Newark, and Union City, CA.

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Contact Info

5072 Benson Road
Union City, CA 94587-2508
510.477.7500
ContactUSD@unionsanitary.ca.gov

© 2026 Union Sanitary District | Serving Fremont, Newark and Union City, California. | Powered by Formula Design

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