[hoosiermama]

Next thought: Does the reservoir at Hoover dam supply water to many areas? There are other dams in the area, how about them? Could a plane be used to contaminate the water?

[Ex-Dem]

Contaminate with what? Jet fuel? Considering the amount of water involved, it'd take ~9 million gallons of it to contaminate the whole Hoover Dam resevoir. I don't know how much fuel planes usually carry, but I'd venture a guess that it's not quite that much.