Calgon Carbon Awarded Two Contracts For Sentinel® Systems

Calgon Carbon Corporation (NYSE: CCC) announced today that it has been selected by the cities of Indianapolis, Indiana, and Fort Wayne, Indiana, to supply Sentinel® Ultraviolet (UV) Disinfection Systems at drinking water production plants serving their communities. Terms of the contracts were not disclosed.

Indianapolis will install 12 Sentinel 12” Systems at its Fall Creek plant to increase protection against Cryptosporidium, Giardia, and other surface water pathogens. When installed in the winter of 2011, the Sentinel Systems will treat up to 44 million gallons of drinking water per day.

Separately, Fort Wayne will install three Chevron 48” UV reactors at its Three Rivers water filtration plant as part of a retrofitting project. The new UV reactors – capable of treating up to 72 million gallons of water per day were selected because of their low capital and operating costs. Installation is scheduled for June 2012.

Both Sentinel Systems have undergone third-party validation in accordance with the U.S. Environmental Protection Agency’s UV Disinfection Guidance Manual. Both Systems feature UV intensity sensors to ensure accurate delivery of UV dose, an automatic quartz sleeve cleaning system, and a fully automated control system.

Commenting on the contracts, James A. Sullivan, vice president of Calgon Carbon, said, “We are pleased to have been selected to supply our Sentinel disinfection systems to the cities of Indianapolis and Fort Wayne. These awards are indicative of Calgon Carbon’s growing leadership position in the UV disinfection market.”

Calgon Carbon Corporation, headquartered in Pittsburgh, Pennsylvania, is a global leader in services and solutions for making water and air safer and cleaner.

For more information about Calgon Carbon's leading activated carbon and ultraviolet technology solutions for municipalities and industries, visit www.calgoncarbon.com.

This news release contains historical information and forward-looking statements. Forward-looking statements typically contain words such as "expect," "believe," "estimate," "anticipate," or similar words indicating that future outcomes are uncertain. Statements looking forward in time, including statements regarding future growth and profitability, price increases, cost savings, broader product lines, enhanced competitive posture and acquisitions, are included in the company's most recent Annual Report pursuant to the "safe harbor" provision of the Private Securities Litigation Reform Act of 1995. They involve known and unknown risks and uncertainties that may cause the company's actual results in future periods to be materially different from any future performance suggested herein. Further, the company operates in an industry sector where securities values may be volatile and may be influenced by economic and other factors beyond the company's control. Some of the factors that could affect future performance of the company are higher energy and raw material costs, costs of imports and related tariffs, labor relations, capital and environmental requirements, changes in foreign currency exchange rates, borrowing restrictions, validity of patents and other intellectual property, and pension costs. In the context of the forward-looking information provided in this news release, please refer to the discussions of risk factors and other information detailed in, as well as the other information contained in, the company's most recent Annual Report.