An oil sheen on the Grand River near Grandville was caused by downed transformers, state environmental officials say.

A small oil sheen was spotted at the ... before entering storm drains leading to the channel,” the OSPR said. Oil was spotted in the water at the Port of Long Beach on March 13, 2025.

GRAND RAPIDS, MI - An oily sheen visible on the Grand River after ... They released mineral oil into two storm water drains, with the spill ultimately reaching the Grand River, he said in an ...