Delta Water Supply Project 
Frequently Asked Questions
What is the Delta Water Supply Project?
The project will develop a new supplemental water supply for the Stockton Metropolitan Area. Water from the Delta will be pumped through miles of underground pipeline located along Eight Mile Road to a new state-of-the-art surface water treatment plant. The water will be treated to the highest drinking water standards and distributed to Stockton residents and businesses.
The water treatment plant will be located north of Eight Mile Road on Lower Sacramento Road.
Why was the DWSP initiated?
The DWSP was initiated to achieve three primary objectives:
- Replace declining surface water resources
- Protect groundwater supplies
- Provide for current and future water needs in the Stockton Metropolitan Area
Currently, the City receives about 70 percent of its total water needs through other suppliers. The cost and reliability of those sources depend greatly on market conditions, weather and environmental restrictions – all challenges the City of Stockton cannot control.
What is the construction status?
Construction started in the Fall of 2009 and is well underway. Ongoing updates are made to the Delta Water Supply Project home page and project hotline at 877-711-5169. The first phase of construction is expected to be complete in 2012.
Will construction cause impacts?
All construction projects create impacts and the Delta Water Supply Project is no different. The City is committed to keeping the community informed about potential impacts.
Check the Web site for:
- Weekly traffic reports
- Monthly construction updates and photos
Call the Hotline (877.711.5169) for weekly traffic reports.
Both information sources provide opportunities to leave feedback or ask questions.
What will the water treatment plant look like?
The design will complement nearby surroundings. Click here to see a rendering.
Who are the construction contractors?
The City’s internal project team is working closely with two primary construction firms skilled in building projects of this magnitude. CDM Constructors Inc. is responsible for the water treatment plant and pipelines. Preston Pipelines is responsible for the Intake and Pump Station Facility. Both firms engage the services of several subcontractors – a list of which may be found by clicking here.
How much water will the water treatment plant process?
The initial phase will allow 30 million gallons per day (mgd) of water to be treated and delivered, therefore meeting approximately one-third of Stockton’s water needs. At final build-out (estimated in 2050), the water treatment plant will have the capacity to treat up to 160 mgd.
How much will the new water treatment plant cost?
The 2009 Water Rate and Financial Study identifies approximately $217 million, which will be paid for through the issuance of bonds. The bonds will be repaid by new development fees and user rates, which were approved by the City Council in July 2009.
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Stockton,
CA 
