A new, U.S.-Mexico agreement provides more Colorado River water to both countries, will require both countries to share inevitable river shortages and offers more certainty as to how much river water will be available for both countries. That’s how negotiators, federal officials and Arizona water officials see the upshot of the pact that was signed this week at a Santa Fe, New Mexico, ceremony following years of negotiations. The agreement, known as Minute 323, is aimed at establishing ground rules for managing the river for the two countries through 2026.