The 2024 Delta Plan Review uses established performance measures to provide “report cards” that rate ten-year progress in implementing the Delta Plan. Ratings are based on the portion of each measure’s target achieved by 2023
The Delta Plan is a comprehensive, long-term management plan for the Sacramento-San Joaquin Delta and Suisun Marsh (Delta) that guides federal, state, and local agencies managing Delta water and environmental resources. The Delta Stewardship Council (Council) reviews the Delta Plan every five years to evaluate progress in meeting management objectives over time. The Council completed a 2024 Delta Plan review, and based on the findings, recommended priority management actions for the next five years.
Over the past ten years, California has experienced climate and hydrologic variability, oscillating between extended dry periods and record heat waves and wet years with extreme precipitation and flooding. The performance report cards show that progress has been made toward meeting the objectives of the Delta Plan, and many desired outcomes are already being achieved. Still, many performance measures show slow improvement or demonstrate a lack of progress, and action is needed to change their trajectory. As climate change increases, performance measure report cards provide structured, consistent feedback on the hydrologic, ecologic, and human characteristics that define the Delta as a unique and evolving place. The Council uses such feedback to inform adaptive management of Delta Plan to improve the trajectory toward desired targets.
The report cards score each performance measure based on the portion of the performance target achieved at the time of the evaluation. Progress ratings are provided for each performance metric. Performance measures with multiple metrics calculate the overall score as an average of the individual metric scores.
View the performance measure rating details on each Delta Plan resource area page. Read the 2024 Delta Plan Review full report and the technical appendix.
The links below and the navigation to the left of the page direct users to the specific chapters of the Delta Plan that contain the performance measures that were reviewed. Each page contains the respective chapter's performance measures status and a short summary of the data and analysis details supporting the rating.