Lake Mead
© KRNV Reno
Boulder City, Nevada - Authorities are warning people to avoid a section of Lake Mead after park officials found dead carp and a mysterious foam there.

Park spokeswoman Christie Vanover says the mysterious fish deaths and foam were found in the Overton Arm, where the lake extends north. She says the foam appeared to be coming from the mouth of the Virgin River and stretched about eight miles down to Echo Bay.

Officials said over the weekend that the Southern Nevada Water Authority is working with the National Park Service to collect water samples.

The authority is also keeping track of water at its two water treatment facilities to ensure the quality meets the federal standards of the Safe Drinking Water Act.