Why? We have 27 quadrillion gallons in lake michigan alone. You could pump millions of gallons a day out and if it just stopped raining it would take 3 million years to drain it. Stop listening to Charlie Berens.
For reference, Yuma uses around 100 billion gallons of water a year for irrigation. The whole state uses around 2.2 trillion gallons per year.
That's 6 billion gallons a day. And if there were a supply of lots of fresh water, you could expect the consumption by agriculture in desert areas to go way up, so yes, it is entirely possible for lakes to get drained by schemes like thus, such as the Aral Sea disaster. Lake Chad and Lake Poopó are examples from two other continents of the same level of destruction.
That's 6 billion gallons a day. And if there were a supply of lots of fresh water, you could expect the consumption by agriculture in desert areas to go way up, so yes, it is entirely possible for lakes to get drained by schemes like thus, such as the Aral Sea disaster. Lake Chad and Lake Poopó are examples from two other continents of the same level of destruction.