 The IID also remotely operates the Brock Reservoir, between El Centro and Yuma, by operating the inlet and outlet gates and regulating the amount of water diverted into the reservoir and returned to the main system.In 2009, IID completed the 23-mile concrete lining project of the All-American Canal to recover about 66,700 acre-feet of water per year for use by the San Diego County Water Authority.The IID is a key partner in the Quantification Settlement Agreement—a pack of several agreements among California water districts entered into in 2003 to help California live within its entitlement of 4.4 million acre-feet of Colorado River water a year.