Groundwater Discharges

USD’s Groundwater Program

When no other alternative for disposal of groundwater exists, USD may issue permits for:

  • Groundwater from contaminated site clean up
  • Groundwater encountered during excavation

Groundwater must be treated for sediment and meet all limits listed in Table 1 of the Groundwater Reference Sheet.

This Permit is a conditional Discharge Permit and approval of discharge is dependent upon available capacity in the sewer.

For specific requirements, limits, and fees for a groundwater permit please access the Groundwater Reference Sheet.

Permit application- To be filled out for all proposed discharges of groundwater.

Encroachment Agreement- Only needed if discharge will be to a USD owned sewer manhole.

Completed applications, supporting documentation and the processing fee(s) must be sent to:

       Attention: Groundwater Discharge Permit Application
Environmental Compliance Team
Union Sanitary District
5072 Benson Road, 
Union City CA 94587


Discharge is subject to all conditions of Ordinance 36.03 section 2.04, 2.10


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