Vermont officials are warning people to restrict use of the lower Lamoille River and areas near its mouth on Lake Champlain in the coming days.
That’s because starting Thursday morning, the Department of Fish and Wildlife is treating those waters with a chemical designed to kill the sea lampreys that have been attacking fish.
Officials say the treatments will affect the Lamoille from the Peterson Dam in West Milton downstream to the river’s mouth.
Nearby parts of Lake Champlain also are covered by the advisories, which urge against household, agricultural and recreational uses of those waters for four to seven days.