Multiple choice Switch to new water source caused pipe corrosion, lead in drinking water, began in 2014 Flint Water Crisis Aswan High Dam Aral Sea Hoover Dam Reveal answer Fill a bubble to check yourself A Correct answer Explanation The Flint Water Crisis began in 2014 when the city switched its water source to the Flint River. The water was not properly treated for corrosion, causing lead to leach from old pipes into the drinking supply.