Since 2020, the SWC has been assessing and publishing data on a weekly basis as it pertains to the management of the SWP. These weekly data assessments include precipitation, runoff and snow water content, Delta flows and total exports, daily average flow in the Delta, and reservoir storage levels for the four largest SWP reservoirs (Oroville, Shasta, San Luis and Folsom). Please select a date from the drop-down menu below to view or download the data from that week.