Brackish Water Desalination Project

7 Documents in Project


SCH Number
Lead Agency
Antioch, City of (City of Antioch)
Document Title
Brackish Water Desalination Project
Document Type
NOP - Notice of Preparation
Present Land Use
Open Space, Neighborhood Commercial, Medium Low Density Residential

Document Description
Currently, the City's primary sources of untreated water are the San Joaquin River (River) and water purchased from the Contra Costa Water District (CCWD) via the Contra Costa Canal. The City currently pumps River water to the City's municipal reservoir then to the water treatment plant (WTP) located at 401 Putnam Street, Antioch. Because the Antioch WTP does not reduce chloride concentrations, the City stops pumping River water when the chloride concentration in the municipal reservoir approached levels that are too high for public consumption, typically around 75 milligrams per liter (mg/l). The City purchases water from CCWD when it is unable to utilize River water. Generally, the City is able to use River water from January to July, and relies on water from CCWD for the Remainder of the year. The City proposes to construct, operate, and maintain the Project which includes a 6 million gallons per day (mgd) desalination facility within the City's existing WTP. The goals of the project are to improve water supply reliability and water quality for its customers, especially during droughts and future changes in Delta water management, and to provide operational flexibility for the City. The project meets these goals by constructing facilities that allows the City to withdraw water from the River year-round under its pre-1914 water rights, even when the chloride concentration is above the 75 mg/l limit normally treated at the WTP.

Contact Information
Scott Buenting
City of Antioch
200 H Street
Antioch, CA 94509

Phone : (925) 779-7050


Antioch Pittsburg
Contra Costa
Cross Streets
Putnam Street between D Street, G Street, McElheny Road, Fulton Shipyard Road,Pittsburg-Antioch
Parcel #
State Highways
San Joaquin River

Notice of Completion

Review Period Start
Review Period End
Development Type
Water Facilities (Facility,appurtenances,pipelines,intakepumpstationreplacement)(Desalination Fac Type)
Local Action
Other Action Other Action: Water Supply
Project Issues
Aesthetic/Visual Agricultural Land Air Quality Archaeologic-Historic Biological Resources Drainage/Absorption Flood Plain/Flooding Forest Land/Fire Hazard Geologic/Seismic Minerals Noise Population/Housing Balance Public Services Recreation/Parks Schools/Universities Soil Erosion/Compaction/Grading Solid Waste Toxic/Hazardous Traffic/Circulation Vegetation Water Quality Water Supply Growth Inducing Land Use Cumulative Effects
Reviewing Agencies
California Department of Fish and Wildlife, Bay Delta Region 3 California Department of Parks and Recreation California Department of Transportation, District 4 California Highway Patrol California Public Utilities Commission California State Lands Commission Delta Protection Commission Delta Stewardship Council Department of Water Resources Resources Agency State Water Resources Control Board, Division of Drinking Water State Water Resources Control Board, Division of Drinking Water, District 4 State Water Resources Control Board, Divison of Financial Assistance California Native American Heritage Commission Central Valley Flood Protection Board California Regional Water Quality Control Board, Central Valley Sacramento Region 5

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at or via phone at (916) 445-0613.

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