How do Central Valley Project (CVP) operations impact withdrawals from Trinity Lake?
The amounts and timing of Trinity basin exports are determined by subtracting Trinity River scheduled flows and targeted carryover storage from the forecasted Trinity water supply. Trinity River Division operations are integrated with the Shasta Division and other CVP water supply reservoirs. Exports are made after considering many different operational factors including: water year type, minimum flow and water temperature requirements for the Trinity and Sacramento Rivers, storage levels and refill potentials in both reservoirs, as well as demand for water supply and hydroelectric power generation.