Donna Harold isn’t worried about the river. “Some of our neighbors panicked and left,” she says, “but we stayed behind.” She turns and shushes the pair of toddlers squabbling in the red wagon behind her. Late Sunday night, state officials sent out an evacuation order saying that Lake Oroville—30 miles north, feeding into the Feather River that runs through Harold’s hometown of Marysville—was hemorrhaging water and in danger of bursting.