ABSTRACT
In September 2017, the U.S. and Mexico signed Minute No. 323, “Extension of Cooperative Measures and Adoption of a Binational Water Scarcity Contingency Plan in the Colorado River Basin”, to the US-Mexico 1944 Water Treaty. This agreement, which remains in effect through 2026, includes provisions for sharing in surplus and shortage conditions and establishes a Binational Water Scarcity Contingency Plan, among other provisions. During the negotiations, the hydrology workgroup analyzed many scenarios of possible shortage, surplus, and contingency plan provisions. The Colorado River Simulation System (CRSS) RiverWare model and the RiverWare Study Manager and Research Tool (RiverSMART) were relied on to model all scenarios. This talk will highlight how CRSS and RiverSMART were used to help analyze these key provisions of Minute No. 323.

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