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Contact Us

If you have an emergency please call (510) 477-7500.
We answer our phones 24/7/365.

Get in Touch

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.

Address

5072 Benson Road
Union City, CA 94587-2508

Phone

(510) 477-7500
(510) 477-7501 Fax

Email

ContactUSD@unionsanitary.ca.gov

Normal Business Hours
8:00am-5:00pm
Monday-Friday

After hours/Emergency
(510) 477-7500, press extension 1

For questions regarding the permitting process or to submit sewer permit applications, please email permits@unionsanitary.ca.gov

Accessibility
Union Sanitary District is committed to ensuring the accessibility of its facilities to persons with disabilities, including accessibility to our website. Learn More

Current Job Openings
Please see Job Opportunities to learn more about Current Openings.

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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