U.S. Bureau of Reclamation officials declared the first-ever water shortage on the Colorado River on Monday, Aug. 16, and the Imperial Irrigation District weighed in on Tuesday, Aug. 17.

That declaration has triggered cuts in water supplies to some Arizona farmers and areas of Nevada for 2022.

In the U.S., Arizona will be hit the hardest and lose 18 percent of its share from the Colorado River next year, according to the Associated Press.

That’s around 8 percent of the state’s total water use. Nevada will lose about 7 percent of its allocation, or 21,000 acre-feet of water.

California is spared from immediate cuts because it has more senior water rights than Arizona and Nevada. Mexico will see a reduction of roughly 5 percent, or 80,000 acre-feet.

The Imperial Irrigation District has addressed the cuts, though the district won’t yet be affected by the recently announced shortage reduction.