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

Virtual Plant Tour Video

Watch the video to learn more.

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Residents

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

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