This is how serious the water shortage is in Nevada and surrounding states.
Check it out:

The federal agency overseeing water and power is in the market for 52,000 rounds of ammunition for its officers at Hoover Dam and the Lake Mead National Recreation Area, raising questions about weapons for nonmilitary purposes.

The Bureau of Reclamation put out a bid in June for 41,600 rounds of hollow-point ammunition and 10,400 rounds of shotgun ammunition.