Municipal Utilities Department 

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


At MUD, we are committed to protecting the environment 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 to improve the quality of our waterways, lakes, and Delta
  • Safe drinking water
  • Quality customer service

Work performed by MUD is in accordance with applicable regulations and responsible business practices. A Quarterly Operations Report (QOR) details department operations. 


Visit Utility Services to learn more about:

  • Water, wastewater, and stormwater utility services (residents and businesses)
  • Permit requirements and regulations
  • Fee calculators
  • Industrial pretreatment
  • Fats, Oils, and Grease (FOG) Program


The Regional Wastewater Control Facility is a 24/7 operation to treat residential, commercial, industrial, and institutional wastewater throughout the City and parts of the surrounding County. Tours are available. Read more on the Regional Wastewater Control Facility - Plant Tours page.


Department Divisions

MUD serves the community with 12 divisions devoted to:

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

Municipal Utilities Department Organizational Chart

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


Water Facts: Learn More About City of Stockton Water

Three easy ways to learn more about our water:


External Links

Environmental Protection Agency (EPA)

EPA - Information about contaminants

This City of Stockton web page last reviewed on --- 2/26/2018