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Municipal Utilities Department 

The recent violation of a drinking water standard by the Stockton East Water District has not adversely affected the quality of water that the City of Stockton delivers to our customers.  We are working with the Stockton East Water District to ensure the level of Total Organic Carbon meets the limit set by the U.S. Environmental Protection Agency and the State of California Department of Public Health.  The City of Stockton Municipal Utilities Department is committed to supplying water to our customers that continually meets or exceeds all water quality standards.

About MUD

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

At the Municipal Utilities Department (MUD), we are committed to providing the community with:

  • A 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
  • Top quality customer service

Work performed by MUD is in accordance with applicable regulations and responsible business practices.  A Business Plan has been developed to guide the Department in daily operations and service.


General information 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 can be found under Utility Services.


Each month, a Monthly Operations and Maintenance Report (MOMR) is prepared that details the operations of the Department.


Tours of the Regional Wastewater Control Facility are available along with birdwatching opportunities in our wetlands.  More information can be found under Utility Services on the Regional Wastewater Control Facility-Plant Tours and Birdwatching page


MUD protects both the environment and the community by caring for the City’s water resources.


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.


The Department also maintains the water operations to provide safe, reliable drinking water, and a stormwater utility that helps prevent street flooding and improves the water quality of our rivers and the Delta.


Department Divisions

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

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

For additional information or to report a water, wastewater, or stormwater emergency, please Contact Us.


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



External Links

Environmental Protection Agency (EPA)

EPA - Information about contaminants

Drink Tap


This City of Stockton web page last reviewed on --- 12/5/2013