Covanta Holding Corp. to Release First Quarter Earnings on April 22

Date: April 7, 2010

Source: Covanta Holding Corporation

Covanta Holding Corporation First Quarter Earnings Conference Call to Be Held On April 22, 2010

Covanta Holding Corporation (NYSE: CVA) will host a conference call at 8:30 AM (Eastern) on Thursday, April 22, 2010 to discuss its first quarter results. The Company will release those results after the market closes on Wednesday, April 21, 2010. Our press release will also be available in the News section of the company's website at www.covantaholding.com.

Prepared remarks will be followed by a question and answer session. To participate, please dial 877-806-3982 approximately 10 minutes prior to the scheduled start of the call. If you are calling from outside of the United States, please dial 702-928-7062. Please utilize conference ID number 67038420 when prompted by the conference call operator. The conference call will also be webcast live from the Investor Information section of the Covanta website.

A replay of the conference call will be available from 11:30 AM (Eastern) Thursday, April 22, 2010 through midnight (Eastern) Thursday, April 29, 2010. To access the replay, please dial 800-642-1687, or from outside of the United States 706-645-9291 and use the replay conference ID number 67038420. The webcast will also be archived on www.covantaholding.com.

About Covanta

Covanta Holding Corporation (NYSE:CVA), is an internationally recognized owner and operator of large-scale Energy-from-Waste and renewable energy projects and a recipient of the Energy Innovator Award from the U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy. Covanta's 45 Energy-from-Waste facilities provide communities with an environmentally sound solution to their solid waste disposal needs by using that municipal solid waste to generate clean, renewable energy. Annually, Covanta's modern Energy-from-Waste facilities safely and securely convert approximately 20 million tons of waste into more than 9 million megawatt hours of clean renewable electricity and create 10 billion pounds of steam that are sold to a variety of industries. For more information, visit www.covantaholding.com.

For more information, contact:
Marisa Jacobs, Esq.
Vice President Investor Relations & Corporate Communications
973-882-4196

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