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Businesses

Union Sanitary District maintains all public sanitary sewer mains within Fremont, Newark, and Union City.

Sewer Safety
Our trained employees have the safety equipment necessary to check the manholes to make sure that there are no dangerous gases present. 
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Sewer Repairs
USD maintains all public sanitary sewer mains within Fremont, Newark, and Union City. This includes over 811 miles of pipelines which are generally located within public streets or easements dedicated for District use.
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Pollution Prevention
In order to maintain and improve the quality of water in San Francisco Bay, Union Sanitary District (USD) has instituted a Pollution Prevention (P2) Program to reduce the quantity of pollutants discharged from our wastewater treatment plant into the San Francisco Bay.
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USD Construction Projects
Union Sanitary District has plans and specs for advertised Capital Improvement Projects available for viewing in pdf format. The digital format does not supercede the requirements for bidders to purchase a hard copy of the plans and specs.
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Green Business Program
As a business, is your bottom line green? Do you know how you can receive free business promotions, increase operating efficiency and profits, and learn how to reduce waste and utility costs?
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Permits & Fees
An overview of the following permits: New Single Family DwellingAccessory Dwelling Unit (ADU)Sewer Repairs/Replacements/AdditionsCommercial/IndustrialTractsCapacity Fees, and Standard Specifications. Or click the title of the permit to go directly to permit details.
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Pretreatment Program
The objectives of USD’s Industrial Pretreatment Program are to protect the District’s wastewater collection and treatment facilities, the safety of our workers and the community, and water quality in the San Francisco Bay by limiting the discharge of toxic or potentially harmful substances to the sewer system.
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Doing Business with USD
Purchasing, Surplus Auctions.
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