Lead water pipes created a health disaster in Flint, but replacing them with cheaper plastic − as some cities are doing − carries hidden costs

By Rajpreet Grewal, Water Policy Specialist, University of Wisconsin-Milwaukee
Laodong Guo, Professor of Aquatic Biochemistry, University of Wisconsin-Milwaukee
Melissa Scanlan, Professor and Director of the Center for Water Policy, School of Freshwater Sciences, University of Wisconsin-Milwaukee

Flint, Michigan, made headlines in 2015 when tests revealed dangerously high lead levels in its drinking water. The city had switched its water supply to the Flint River a year earlier, and corrosive water had damaged aging lead pipes, exposing thousands of people to lead contamination.

The result was a human health crisis that residents are feeling the effects of to this day. And Flint was only…

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