Groundwater accounted for nearly all of the irrigation withdrawals in Mississippi, and more than half the withdrawals in Florida, Louisiana, and Georgia. Although the scale of irrigation generally is much smaller in the north central, eastern, and southern states, public issues regarding water rights, allocation, and pricing are gaining importance in those regions as the demand for water increases due to population pressure, expansion of economic activity, and greater demand for environmental amenities derived from water resources (Elfner and McDowell, 2004, Petrie and Taylor, 2007). The average application of irrigation water in western states was about 6,100 m3 per hectare in 1998, as about 3,000 m3 per hectare were lost in conveyance. The USDA’s 2003 Farm and Ranch Irrigation Survey (FRIS) provides a relatively recent overview of irrigation water sources and costs, and irrigation methods used by farmers throughout the country.