PORTAGE, Ind. (AP) — U.S. Steel says a northwestern Indiana plant’s discharge of elevated levels of iron were the cause of an orange plume that entered a Lake Michigan tributary, prompting the closure of several nearby beaches and a water treatment facility.
Company spokeswoman Amanda Malkowski said in a statement late Monday that an analysis of the discharge from the U.S.
Great Lakes Now
https://www.greatlakesnow.org/2021/09/ap-us-steel-plant-orange-plume-elevated-iron/