As one of the oldest and most populated cities in the country, New York City’s infrastructure has reached its breaking point. The subway is the center of the debate about the city’s crumbling infrastructure, but the city’s roads and bridges are also collapsing, and pipes are rusting. The same pipes that transport New York’s drinking water. NYCityLens reporters spoke to experts from the engineering department at Columbia University about sourcing and drinkability, and best strategies for water management.