The mission of the Bay-Delta Office (BDO) is to plan facilities and implement actions in the Sacramento-San Joaquin Delta to improve water quality, water supply and reliability, and the ecosystem. The Office develops and maintains computer simulation models to analyze the effects of projects and actions proposed or undertaken by the Department or other agencies.

Katherine Kelly, Chief
Bay-Delta Office
California Department of Water Resources
1416, 9th Street, Room 215-37
Sacramento, CA 95814

e-mail: kkelly@water.ca.gov
Telephone: (916) 653-1099
FAX: (916) 653-6077

SWP Delivery Reliability Report

The Draft State Water Project Delivery Reliability Report 2011 and Technical Addendum have been released. This report updates estimates of the current (2011) and future (2031) State Water Project delivery reliability and incorporates regulatory requirements for SWP and CVP operations in accordance with USFWS and NMFS biological opinions. Estimates of future reliability also reflect potential impacts of climate change and sea level rise.

Comments are due by March 12, 2012 and can be sent to:

California Department of Water Resources
SWP Delivery Reliability Report- Attn: Cynthia Pierson
P.O. Box 942836
Sacramento, CA 94236-0001
or emailed to: comments-on-2011drr@water.ca.gov

• The draft report can be accessed by clicking here (pdf download, 19 MB).
• The technical addendum can be accessed by clicking here (pdf download, 7 MB).

The suite of CalSim-II studies used in the Draft State Water Project Delivery Report 2011 and Technical Addendumcan be accessed by clicking here. (01/31/2012)

Public Release of CalLite Model Version 2.00 -- A Central Valley Water Resources Management Screening Tool

The California Department of Water Resources and the U.S. Bureau of Reclamation are pleased to announce public release of CalLite model version 2.00 - a Central Valley Water Resources Management Screening Tool. Please click here for more information and download. If you have any questions, please contact Nazrul Islam at nislam@water.ca.gov or 916-653-8727. (10/17/2011)

A Technical Workshop on the Public Release of CalLite 2.00 (Beta) Model -- A Central Valley Water Resources Management Screening Tool

The California Department of Water Resources and the U.S. Bureau of Reclamation are conducting a workshop on August 29th (1:00 PM to 4:30 PM) on the new CalLite model.  Please click here to view the flyer for more information on the workshop.  If you are interested in attending this workshop, please contact Nazrul Islam by August 22, 2011. (8/16/2011)

DWR Releases Final State Water Project Delivery Reliability Report

The State Water Project Delivery Reliability Report 2009 has been finalized.  This report updates estimates of the current and future State Water Project delivery reliability and incorporates the restrictions on SWP and CVP operations in ac­cordance with the biological opinions of the U.S. Fish and Wildlife Service and National Marine Fishery Service issued on Dec. 15, 2008 and June 4, 2009, respectively. The projection for future (2029) conditions also incorporates climate change and an accompanying rise in sea level. Click here for a summary of the report and here for the full report and associated information. (9/27/2010)

Evaluation of Mortality and Injury in a Fish Release Pipe Report Released

DWR has released the “Evaluation of Mortality and Injury in a Fish Release Pipe”. This report documents results and conclusions of a study spanning several years (2007-2008) to evaluate and quantify fish mortality and injury at the State Water Project Fish Release Site at Horseshoe Bend. The report provides baseline data and a series of recommendations designed to improve existing release sites and guide the construction of new release sites. The report is available for download by clicking here. (7/28/2010)

Release Site Predation Study Released

DWR has released the “Release Site Predation Study”. This report documents results and conclusions of studies spanning several years (2007-2008) to evaluate and quantify fish mortality at the state and federal release sites for salvaged fish with an emphasis on the SWP Release Site at Horseshoe Bend. The report provides baseline data and a series of recommendations designed to improve existing release sites and guide the construction of new release sites. The report is available for download by clicking here. (06/03/2010)

Low-flow Intake Technical Analysis Report Released

DWR has released an initial assessment for analyzing the feasibility and effectiveness of a low-flow screened intake to the Clifton Court Forebay (Forebay). The “Low-flow Intake Technical Analysis” describes conceptual alternatives for a low-flow screened intake to the Forebay and identifies additional information required for any subsequent assessment efforts. The report is available for download by clicking here. (02/01/2010)

Release of Draft State Water Project Delivery Reliability Report 2009

The draft State Water Project Delivery Reliability Report 2009 is available for public review. This report updates estimates of the current and future State Water Project delivery reliability and incorporates the restrictions on SWP and CVP operations in accordance with the biological opinions of the U.S. Fish and Wildlife Service and National Marine Fishery Service issued on Dec. 15, 2008 and June 4, 2009, respectively. The projection for future (2029) conditions also incorporates climate change and an accompanying rise in sea level. The public comment period closes March 4, 2010. Click here for a summary of the report and here for the full report, associated information, and details for submitting comments. (01/26/2010)