Topic: Lead Pipes

The EPA, led by Administrator Michael Regan, has issued a new rule requiring most U.S. water systems to replace lead pipes within 10 years. NPR's coverage of the mandate is criticized for failing to explain the specific water chemistry issues that caused the Flint crisis. The discussion notes that hard water often creates a protective mineral coating inside pipes, a fact omitted from the news report.

Chicago reportedly has the highest concentration of lead pipes in the U.S., with approximately 400,000 service lines. While the EPA initially granted the city a 40-year extension for replacement, the final rule has tightened the timeline to 20-25 years. The hosts discuss technical solutions like plastic sleeving and reiterate that elemental lead is not toxic unless it forms salts through specific chemical reactions.