Officials fear an imminent collapse of a storage pond that could spill up to 800 million gallons of toxic radioactive water into Tampa Bay causing a major environmental emergency. SUBSCRIBE to GMA https://bit.ly/2Zq0dU5 To read the full story and others, visit http://www.goodmorningamerica.com Good Morning America (GMA) brings viewers an award-winning combination of breaking news, exclusive investigations, hard hitting interviews, weather forecasts, cutting edge medical field information, and financial reporting every morning. Join Robin Roberts, George Stephanopoulos, Lara Spencer, Michael Strahan, Amy Robach and Ginger Zee weekdays at 7am on ABC. Follow GMA across the web-- Facebook: https://www.facebook.com/GoodMorningAmerica Twitter: https://twitter.com/gma Instagram: https://instagram.com/goodmorningamerica #GMA #ToxicWater #Florida #TampaBay #GulfCoast