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WaterPipes at Delta Water Treatment Plant

On Friday, May 29, the City of Stockton’s Municipal Utilities Department (MUD) Water Conservation Division is sponsoring a workshop called "Get Ahead or Get Parched: Six Ways to Survive the Drought."

You can register for the event at the link under External Links.  The flyer for the event will give you further information.

Stockton Water System

The Municipal Utilities Department (MUD) provides water service to the residents and businesses in the North and South Stockton areas.  California Water Service (CalWater), a private company, provides for most of central Stockton. Please visit the About Your Address web page to find your water service provider.


Areas served by MUD are identified on the Water Service Area MapsWater fee estimator will calculate your estimated fees if you are in the City’s service area.  If you are within the City's MUD Water Service Area and would like to start or stop water service, please contact the Utility Billing Customer Service.


Water Supplies

Approximately 25% of the City’s water supply originates from groundwater wells with the remaining water supply from treated surface water supplied by the Stockton East Water District (SEWD). (Learn more about SEWD in External Links below.)


The Delta Water Supply Project has been completed.  MUD will reduce the amount of water received from SEWD and reduce the amount of groundwater pumped each year.  This reduction improves the City’s water supply reliability and protects its groundwater resources.  The new facility can supply up to 30 million gallons per day (MGD) of drinking water to Stockton residents.  A daily report of water pumped from the Delta and a 15-day running average is available. 


Delta Water Treatment Plant

The City recently completed construction of its new 30MGD drinking water treatment plant, and intake and pump station facility.  The Delta Water Supply Treatment Plant provides a new supplemental, high quality water supply for the Stockton Metro area. 

The finished project:

  • replaces declining surface water sources,
  • protects groundwater supplies, and
  • provides for current and future water needs.

We welcome and encourage public tours, but for security reasons, tours must be by appointment only.  For more information, please Contact Us.


The Delta Water Supply Project Water Treatment Plant was awarded a Gold LEED, established by the U.S. Green Building Council and verified by the Green Building Certification Institute.  The Plant achieved Gold LEED certification for energy use, lighting, water and material use, as well as incorporating other sustainable strategies. 


For more information on LEED, or to see real-time power generation activity at the Delta Water Treatment Plant, visit the External Links section below.  (LEED is a registered trademark.)


Water Resources Planning

Urban Water Management Plans (UWMPs) are prepared by California's urban water suppliers to support their long-term resource planning and ensure adequate water supplies are available for existing and future water demands.  Every urban water supplier – that provides over 3,000 acre-feet of water annually or serves more than 3,000 or more connections – is required to assess the reliability of its water sources.


This assessment is over a 20-year planning horizon considering normal, dry, and multiple dry years. The Urban Water Management Planning Act requires the City to prepare this plan every 5 years and submit to the Department of Water Resources.  


Recycled Water

The 2010 Joint Water Recycling Facilities Planning Study is an effort between the City of Stockton and the City of Lodi to consider the feasibility of using Lodi’s treated wastewater as a recycled water source for the North Stockton area.  The use of non-potable water would extend the City’s water resources, address groundwater overdraft, and re-use water that would otherwise be disposed. 


Water Conservation

Water conservation protects our future.  The City’s comprehensive Water Conservation Program includes long-term planning; incentives; water-saving tips; residential, business and landscape conservation; school programs; and programs designed for resident and business customers.


Rates and Fees

Currently, MUD's residential and business customers pay a monthly water rate based on both a fixed charge (determined by meter size) and a consumption charge (determined by monthly water use).  In 2009, the Stockton City Council approved a four-year water rate increase as defined in the 2009 Water Rate and Financing Study.


Information on the fees associated with new water service and connections can be found in the Water Fee Estimator or Permit Center.  The 2009 Surface Water Supply Fee Report provides more information on Delta Water Supply Project surface water fee. 


Water Quality

The United States Environmental Protection Agency safeguards the quality of our water supply as established and amended in the U.S. Safe Drinking Water Act of 1974.  In many cases, California's standards are more stringent than federal standards.  Your water supply meets all federal and state drinking water standards.  For more information on water quality, view the Water Quality Report, or the 2010 Drinking Water Public Health Goals Report.



External Links

Get Ahead or Get Parched Registration - For May 29, 2015


California Water Service Company

Northeastern San Joaquin County Groundwater Banking Authority

Real Time Power Generation at the Delta Water Treatment Plant

San Joaquin County Advisory Water Commission

Stockton East Water District

U. S. Green Building Council (LEED)


This City of Stockton web page last reviewed on --- 4/14/2015