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Miguel Del Toral
Regulations Manager, EPA Region 5
EPA whistleblower who first documented Flint lead contamination
Overview
Miguel Del Toral was a regulations manager at EPA Region 5 who authored the first official report documenting dangerous lead levels in Flint, Michigan's drinking water. His June 2015 memo was initially suppressed by his own agency before being leaked to the press, helping to expose the crisis. Del Toral is widely regarded as a hero of the Flint water crisis for his persistence in raising alarms about the contaminated water.
Key Affiliations
Controversies & Concerns
SUPPRESSED MEMO: In June 2015, Del Toral wrote an internal memo documenting elevated lead levels in Flint homes and the failure to apply corrosion control treatment. EPA management initially suppressed the memo and his regional administrator described it as merely a "preliminary draft."
RETALIATION CONCERNS: After his memo was leaked to the ACLU in July 2015, Del Toral faced internal pushback from EPA leadership. His superiors attempted to minimize his findings and restrict his communications.
VINDICATION: Del Toral's findings were ultimately confirmed by Virginia Tech researchers led by Marc Edwards and by pediatrician Dr. Mona Hanna-Attisha. His early warnings could have prevented months of continued exposure if acted upon.
EPA FAILURES: Del Toral's case exposed the EPA's institutional failures in protecting public health, including the agency's deference to Michigan state officials who were dismissing contamination evidence.
Related Investigations (1)
Sources & Documentation
3 documented sources from official records, investigations, and reports
ACLU: Del Toral Memo on Flint Water (2015)
Michigan Radio: The EPA Employee Who First Flagged Flint (2016)
The Atlantic: The Whistleblower Who Exposed Flint's Water Crisis (2016)
Personal Information
Education
Key Timeline
2015-02
Began investigating Flint water quality concerns after resident complaints about lead
2015-04
Found extreme lead levels at the home of Flint resident LeeAnne Walters
2015-06-24
Authored internal EPA memo documenting lead contamination and failure to apply corrosion control
2015-07
Memo leaked to ACLU reporter Curt Guyette; EPA management attempts to suppress findings
2015-09
Findings confirmed by Virginia Tech researchers and Dr. Mona Hanna-Attisha
2016
Recognized as key figure in exposing the crisis