When the Colorado River Compact was signed 100 years ago, the negotiators for seven Western states bet that the river they were dividing would have ample water to meet everyone’s needs – even those not seated around the table.

A century later, it’s clear the water they bet on is not there. More than two decades of drought, lake evaporation and overuse of water have nearly drained the river’s two anchor reservoirs, Lake Powell on the Arizona-Utah border and Lake Mead near Las Vegas. Climate change is rendering the basin drier, shrinking spring runoff that’s vital for river flows, farms, tribes and cities across the basin – and essential for refilling reservoirs.

The states that endorsed the Colorado River Compact in 1922 – and the tribes and nation of Mexico that were excluded from the table – are now straining to find, and perhaps more importantly accept, solutions on a river that may offer just half of the water that the Compact assumed would be available. And not only are solutions not coming easily, the relationships essential for compromise are getting more frayed.

With 25 years of experience working on the Colorado River, Chuck Cullom is used to responding to myriad challenges that arise on the vital lifeline that seven states, more than two dozen tribes and the country of Mexico depend on for water. But this summer problems on the drought-stressed river are piling up at a dizzying pace: Reservoirs plummeting to record low levels, whether Hoover Dam and Glen Canyon Dam can continue to release water and produce hydropower, unprecedented water cuts and predatory smallmouth bass threatening native fish species in the Grand Canyon. 

“Holy buckets, Batman!,” said Cullom, executive director of the Upper Colorado River Commission. “I mean, it’s just on and on and on.”

As water interests in the Colorado River Basin prepare to negotiate a new set of operating guidelines for the drought-stressed river, Amelia Flores wants her Colorado River Indian Tribes (CRIT) to be involved in the discussion. And she wants CRIT seated at the negotiating table with something invaluable to offer on a river facing steep cuts in use: its surplus water.

CRIT, whose reservation lands in California and Arizona are bisected by the Colorado River, has some of the most senior water rights on the river. But a federal law enacted in the late 1700s, decades before any southwestern state was established, prevents most tribes from sending any of its water off its reservation. The restrictions mean CRIT, which holds the rights to nearly a quarter of the entire state of Arizona’s yearly allotment of river water, is missing out on financial gain and the chance to help its river partners.