Election and Colorado's swing state status, criticism of the compact may have gained national significance. Minute 319. On November 20, 2012, the International Boundary and Water Commission of the United States and Mexico signed an agreement termed "Minute 319," which updated the Law of the River to address how the of Colorado River water that Mexico receives every year would be affected by surplus or drought conditions. Under surplus conditions (when the surface elevation of Lake Mead is above relative to mean sea level) the annual flow to Mexico will increase by . In cases where the surface elevation of Lake Mead is higher than that, the extra deliveries to Mexico progressively increase, reaching a maximum of an additional per year. Minute 319 also specifies that deliveries to Mexico will be reduced under drought conditions. Starting from the base allocation of per year, annual deliveries will be reduced by if the surface elevation of Lake Mead is between and above mean sea level; reduced by acre-feet if the elevation is to ; and reduced by if the surface elevation is below . An agreement was reached by seven Western states in 2019 on a plan to manage the Colorado River amid a 19-year drought. See also Colorado River dispute Colorado River Storage Project Colorado River Board of California Course of the Colorado River References Further reading Norris Hundley. Water and the West: The Colorado River Compact and the Politics of Water in the American West (University of California Press, 2009) 415 pp. the standard scholarly history; Jason Robison. "Review of Hundley, Water and the West," H-Water, H-Net Reviews. September, 2010. online Sandra Postel. The Colorado River Delta Series, National Geographic. March through May, 2013. online Daniel Tyler. Silver Fox of the Rockies: Delphus E. Carpenter and Western Water Compacts, (Norman: University of Oklahoma Press) 2003. History of the American West History of the Southwestern United States United States interstate compacts Colorado River Water management authorities in the United States Water in Colorado Water law in the United States Colorado law New Mexico law Utah law Wyoming law Nevada law Arizona law California law