An '''acre-foot''' is the volume of water required to cover 1 [[acre]] of land to a depth of 1 foot. An acre-foot is equal to 325,851 gallons or 1,233 cubic meters. | An '''acre-foot''' is the volume of water required to cover 1 [[acre]] of land to a depth of 1 foot. An acre-foot is equal to 325,851 gallons or 1,233 cubic meters. |