SAVANNAH, Ga. –The three reservoirs on the Savannah River operated by the U.S. Army Corps of Engineers declared the first drought level Tuesday in response to the pool elevation at J. Strom Thurmond Lake dipping below 326.0 feet above mean sea level (ft-msl). Entering Trigger Level 1 activates the Corps’ drought management plan which conserves water in the reservoirs by reducing the outflows from the Thurmond Dam.