The Michigan Legislature has created a joint oversight committee to review findings and take testimony on the mistakes that lead to the Flint water crisis.
The panel will also examine possible policy actions to prevent similar events elsewhere.
Legislative leaders announced the committee Tuesday, as the Senate finalized legislation to grant $30 million in supplemental aid to help pay Flint residents' water bills.
Midland Republican Sen. Jim Stamas, who will lead the panel, says it is not an investigatory unit because it lacks subpoena power.
But Democratic Sen. Jim Ananich of Flint, one of the vice-chairs, openly calls it an investigation.
Flint failed to treat river water with anti-corrosion chemicals when it switched water sources in 2014, allowing lead to be scraped from aging pipes and into drinking water.