The minimum streamflow schedules (see menu to left) have been separated into five water year types. Wet, Above Normal (AN), Below Normal (BN), Dry and Critically Dry (CD). EID shall determine water year type based on the forecast of unimpaired inflow to Folsom Reservoir for the period of April to July, as set forth in Bulletin 120 (Water Conditions in California as published by the California Department of Water Resources.