Quick Answer: Remember the Flint, Michigan water crisis? Studies that tracked lead reduction in homes there during the 2016 federal emergency found that a few key actions really made a difference. They started using orthophosphate again for corrosion control, handed out NSF-certified point-of-use filters, and sped up replacing those old lead service lines. Together, these steps brought water lead levels way down from their crisis peaks (some were over 1,000 ppb!) to levels that met or got close to EPA standards. What happened in Flint shows us a clear path for dealing with lead contamination and investing in our water systems to prevent future problems.

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