www.phcppros.com/articles/2428-flint-s-water-crisis-should-raise-alarm-for-america-s-aging-cities

Extensive work, including chemical mixing and filtration, also is needed at the city's water treatment plant.

Flint’s water crisis should raise alarm for America’s aging cities

January 28, 2016

Flint, Mich., is certainly not the first U.S. city to see its water contaminated by aging pipes. And, unless the many American cities with aging lead pipes get to work quickly, it will not be the last, either.

The poisoned tap water of Flint serves as a warning sign to city officials throughout the U.S: Lead pipes installed in cities 100 or more years ago need to be replaced. More details here.

Source: Fortune