BOISE, ID -- (MARKET WIRE) -- May 15, 2007 -- American Ecology Corporation (NASDAQ: ECOL) announced today that it has received a Norfolk Southern Corporation Thoroughbred Chemical Safety Award for 2006. Companies that safely ship more than 1,000 railcars of hazardous material without incident are eligible for this annual award.

In his letter of congratulation to American Ecology, Norfolk Southern Chief Executive Officer Wick Moorman stated, "As the transportation and chemicals industries face increased scrutiny over the safety and security of hazardous chemicals shipments, your incident-free handling on Norfolk Southern's rail network is a shining example of superior safety performance."

"American Ecology and Norfolk Southern share a continuing commitment to safety and are truly partners in this impressive achievement," stated Stephen Romano, American Ecology's Chief Executive Officer.

American Ecology's disposal facilities near Grand View, Idaho and Corpus Christi, Texas are both served by rail. In 2006, these two facilities safely handled nearly 3,000 railcar shipments without incident.

American Ecology Corporation, based in Boise, Idaho, provides radioactive, PCB, hazardous and non-hazardous waste services to refineries and chemical production facilities, manufacturers, electric utilities, steel mills, medical and academic institutions and government customers throughout the nation. American Ecology is the oldest radioactive and hazardous waste services Company in the United States.

Norfolk Southern Corporation is one of the nation's premier transportation companies. Its Norfolk Southern Railway subsidiary operates approximately 21,000 route miles in 22 states, the District of Columbia and Ontario, Canada, serving every major container port in the eastern United States and providing superior connections to western rail carriers. Norfolk Southern operates the most extensive intermodal network in the East and is North America's largest rail carrier of metals and automotive products.

Contact Information: Contact: Rich O'Hara (208) 331-8400