The state Department of Health is warning people to stay out of the waters in and in front of Kaohaoha Gulch on Hawaii island after heavy rain caused a retention pond at the dairy in Ookala to overflow with animal waste.

Warning signs have been posted.

The Health Department also issued a general warning about entering coastal waters that have seen runoff from heavy rain that could have overrun cesspools, sewers and manholes — and caused pesticides, animal fecal matter, dead animals, pathogens and other chemicals to flow into the ocean.