The Michigan Office of the Great Lakes said federal officials have concluded that Muskegon Lake and White Lake are not impaired by restrictions on wildlife and fish consumption. That means fish in the two lakes no longer contain higher levels of PCBs and mercury than fish in other area waters.
Advisories on eating fish from the lakes are still in effect, but they are no more restrictive than advisories for other nearby inland lakes.
Sediment removal projects in the past 15 years have reduced contamination levels in the fish.
Officials hope Muskegon Lake and White Lake eventually will be dropped from a list of the Great Lakes region's most contaminated sites.