Independent Review of the Delta Risk Management Strategy

The CALFED Science Program, upon request from the California Department of Water Resources (DWR) and under the auspices of the CALFED Independent Science Board (ISB), has coordinated an independent review of the Delta Risk Management Strategy (DRMS) Phase 1 report. The DRMS Independent Review Panel (IRP), consisting of eight internationally renowned scientists and engineers, provided an unbiased evaluation of the technical methods used, analysis, findings, and conclusions of the DRMS study.

Review of the Delta Risk Management Strategy Phase 1 Report (Draft 4) Now Available

The Review of the revised DRMS Phase 1 Report and an introductory memo from CALFED Lead Scientist Cliff Dahm presenting the review to DWR are now available.

Memo from Cliff Dahm presenting the Review of the Delta Risk Management Strategy Phase 1 Report (Draft 4).

Download the Complete Review (Review Plus 5 Appendices) of the Delta Risk Management Strategy Phase 1 Report (Draft 4).

Or download individual sections of the review below:

DWR has considered these review comments, revised their report again, and has completed the final Delta Risk Management Strategy Phase 1 Report and Executive Summary which can be downloaded through their website at http://www.water.ca.gov/floodmgmt/dsmo/sab/drmsp/

You may view the draft of the Phase 1 Report that was reviewed by the IRP (Delta Risk Management Strategy Phase 1 Report Draft 4) by downloading the individual sections of the report below:

DRMS INTRODUCTION

The DRMS Phase 1 Report evaluates the risk and consequences to the State (e.g., water export disruption and economic impact) and the Delta (e.g., levees, infrastructure, and ecosystem) associated with the failure of Delta levees and other assets considering their exposure to all hazards (seismic, flood, subsidence, seepage and sea level rise, etc.) under present as well as foreseeable future conditions. The evaluation assesses the total risk as well as a deaggregation of the risk for individual islands. An independent review was held to ensure the results and conclusions of this important report were supported by the best available scientific knowledge.

History of the DRMS review:

The Independent Review Panel (IRP) completed its first review of the DRMS Phase 1 Report in August, 2007. DWR and the DRMS authors revised their first report to address the criticisms of this first review. A revised report (DRMS Phase 1, Draft 4) was submitted to the IRP for a second review on July 11th, 2008. The IRP met in Sacramento September 4-5, 2008 to discuss the revised Phase 1 report and completed their second Independent Review in October, 2008. This second review is available above. The initial review and response letters can be downloaded here:

Background on the Independent Review Panel:

The DRMS Independent Review Panel (IRP) was formed to provide an unbiased and publicly available evaluation of the technical methods, analyses, findings and conclusions of the DRMS Products. The IRP consists of eight internationally renowned scientists and engineers, unaffiliated with the DRMS report or its authors, who together cover the breadth of relevant issues needed to ensure a thorough evaluation of the DRMS effort.