 Here at the Washington Aqueduct, algae was clogging filters. The algae bloom this year, and talking to our teammates that have been here at the aqueduct for 50 years, they've never seen anything this large before. Colonel Esty Pinchasen with the Army Corps of Engineers said the boiled water advisory was needed because they wanted to make sure there was enough water going out to fight fires. But here you're balancing the water supply requirements as well as the turbidity requirements, the safe drinking water requirements.