The National Park Service issued a water advisory for Lake Powell on July 2 after concentrations of a harmful toxin in the water were detected at the high end of safe exposure levels.

Toxins detected in Lake Powell have led National Park Service officials to issue a Water Advisory for the lake ahead of the holiday weekend.

More water will be sent from upstream to depleted Lake Powell, and less will be released downstream to Lake Mead. Water experts said these moves will bail out a short-term ...

Levels of cyanotoxins that were on the "high end of safe exposure levels" were observed at the mouth of Antelope Canyon in Lake Powell.

National Park Service (NPS) officials issued a water advisory for Lake Powell just before the July 4 holiday weekend after toxins produced by certain algae were detected.

The National Park Service issued a water advisory for Lake Powell on July 2 after concentrations of a harmful toxin in the water were detected at the high end of safe exposure levels.