EGLE takes action when levels reach 1.5%, which is an extreme fraction of the level currently at the Muskegon site. EGLE is not aware of any explosion incidents on the Muskegon site, said Karen Vorce, Grand Rapids district supervisor for the EGLE remediation and redevelopment division. Scientists found an increase in PFAS presence last year in Muskegon Lake, with foam observed next to the Sappi site. Muskegon Lake surface water foam piles on the shoreline at the Hartshorn public launch on Monday, Sept. 23, 2024. David J. RuckPFAS was first found on the site in 2016 and eventually 75 million gallons of impacted ground water was pumped out of the site, Poll said.