The water knife : a novel / Paolo Bacigalupi.

The American Southwest has been decimated by drought. Nevada and Arizona skirmish over dwindling shares of the Colorado River, while California watches, deciding if it should just take the whole river all for itself. Into the fray steps Las Vegas water knife Angel Velasquez. Detective, assassin, and spy, Angel "cuts" water for the Southern Nevada Water Authority, ensuring that lush, luxurious arcology developments can bloom in the desert and that anyone who challenges her is left in the gutted-suburban dust. When water is more valuable than gold, alliances shift like sand, and the only truth in the desert is that someone will have to bleed if anyone hopes to drink.