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HCR 2038

Colorado River; seven-state agreement

57th Legislature - Second Regular Session Introduced by Walt Blackman and 1 co-sponsor

Arizona passes concurrent resolution endorsing seven-state Colorado River water-sharing agreement affecting 40 million western residents' water access and agricultural/municipal sustainability.

Senate Second Reading
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Bill Summary · HCR 2038

Legislative bill overview

HCR 2038 is a concurrent resolution in Arizona that ratifies or endorses a seven-state agreement regarding management and allocation of Colorado River water resources. The bill has passed through the Arizona House and is being transmitted to the Senate for consideration. This measure represents Arizona's formal position on interstate water-sharing arrangements that affect multiple western states dependent on Colorado River supplies.

Why is this important

The Colorado River supplies water to approximately 40 million people across seven states and Mexico, making any agreement governing its use critically important for agriculture, municipalities, and hydroelectric power generation. Arizona's position is particularly significant since the state receives roughly 40% of the river's total allocation. How the seven states agree to manage drought conditions, climate change impacts, and conflicting water demands will determine regional stability and economic viability for decades.

Potential points of contention

  • Allocation disputes: The agreement likely involves trade-offs in water distribution; some Arizona stakeholders may prioritize agricultural or municipal needs differently than the agreement specifies
  • Tribal water rights: Native American tribes have senior water rights on the Colorado River, and the agreement's treatment of tribal allocations and sovereignty may be contested
  • Environmental flows vs. consumptive use: Balancing water for ecosystem health in the river corridor against demands from farms, cities, and power plants remains a persistent conflict among stakeholders

Compiled from official sources — confirm details with the bill’s official record.

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