Crews installed a bubble wall between the Tahoe Keys and Lake Tahoe, hoping it will prevent the spread of aquatic invasive plants while they search for a long-term solution.

A plume of groundwater stretching about 400 acres near the South Tahoe "Y" (where Hwy 50 and Hwy 89 meet) is contaminated with Tetracholroethylene, or PCE.

A couple weeks ago, residents at the Tahoe Keys reported seeing an algae bloom in the water. And after numerous tests, officials have found the algae to be toxic to people and animals.