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Municipal Utilities Department 

The Municipal Utilities Department (MUD) is responsible for the operations of the three water utilities important to everyday life: water, wastewater, and stormwater.  You may not think about your clean drinking water source or where the water goes when you flush a toilet – but we do.


At MUD, we are committed to protecting the enviroment and providing the community with:

  • Stormwater system that decreases the risk of street flooding,
  • Disposal of carefully treated wastewater,
  • Education on water conservation and pollution prevention,
  • Environmental stewardship,
  • Projects that improve the quality of our waterways, lakes, and the Delta,
  • Safe drinking water, and
  • Top quality customer service.

Work performed by MUD is in accordance with applicable regulations and responsible business practices.  MUD's Business Plan guides the Department in daily operations and service.  And each month, a Monthly Operations and Maintenance Report (MOMR) is prepared that details department operations.


Learn more about water, wastewater, and stormwater utility services (including information for residents and businesses, permit requirements and regulations, fee calculators, industrial pretreatment, and the Fats, Oils, and Grease (FOG) Program) under Utility Services.


The Regional Wastewater Control Facility is a 24/7 operation that treats residential, commercial, industrial, and institutional wastewater throughout the City and parts of the surrounding County.

Tours of the Regional Wastewater Control Facility are available along with bird-watching opportunities in our wetlands.  Read more at the Regional Wastewater Control Facility-Plant Tours and Birdwatching page


Department Divisions

MUD works to serve you. The department consists of 12 divisions, including:

  • Engineering
  • Environmental Compliance
  • Stormwater
  • Water Operations
  • Wastewater
  • Water Resources Planning

To learn more or to report a water, wastewater, or stormwater emergency, please Contact Us.


View the City of Stockton Municipal Utilities Department Organizational Chart  for more details on how the department is structured.


External Links

Environmental Protection Agency (EPA)

EPA - Information about contaminants


This City of Stockton web page last reviewed on --- 5/11/2015