Filter Challenge Assessment prepared by EPA in coordination with the Unified Command Group, which concludes that filters distributed by the State of Michigan effectively remove lead or reduce it to levels well below EPA’s action level of 15 parts per billion (ppb).

• Flint Filter Challenge Assessment (PDF)(6 pp, 288 K, June 22, 2016)
• Flint Filter Challenge Assessment (Spanish) (PDF)(6 pp, 495 K, June 22, 2016)