Experts warn of billion-dollar septic problem threatening US South: 'These are ticking time bombs under the ground' yahoo.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from yahoo.com Daily Mail and Mail on Sunday newspapers.
Rising sea levels along the Southeast and Gulf Coast pose a problem for septic systems, which could cause environmental damage and exacerbate health risks if they fail.