Residents, environmentalists and the mayor of Leamington, Ont., say homes and businesses are at severe risk while Ottawa considers an application for millions of dollars to help protect the Hillman Marsh Conservation Area on the Point Pelee peninsula against Lake Erie flooding. Wayne King, founder of the Leamington Shoreline Association, says immediate action is needed to prevent the possibility of destructive flooding in the southwestern Ontario community. "There's 500 homes and businesses out there that would be under water," he said.