PROVO, UT. (AP) — State regulators are warning people not to swim, water ski or drink the water on any part of Utah Lake at least through the end of the month.

The Daily Herald reports the Utah Department of Environmental Quality issued the warning advisory on Monday after counts of cyanobacteria in three locations exceeded safe levels.

Pets and livestock should also be kept away. Fish caught from the lake need to be cleaned well and boaters are asked to avoid scummy areas.

Cyanobacteria from harmful algal blooms can cause rashes, respiratory problems, stomach aches and other issues. They can also poison animals.

The department is expected to re-evaluate at the end of September.