Press Release

Calgon Carbon Chosen to Aid in New York City Drinking Water Shortage

PITTSBURGH, PA  –  05/31/2002

Calgon Carbon Corporation (NYSE: CCC) announced today that it has received a contract valued at approximately $2 million from Moretrench American Corporation of Rockaway, New Jersey to provide carbon adsorption systems and services at nine well sites in the Borough of Queens, City of New York, to restore the groundwater to drinking water quality. The wells had been shut down for several years due to the presence of contaminants, including methyl tertiary butyl ether (MTBE) and pesticides.

Because of drought conditions, the City of New York’s Department of Environmental Protection and their consultant, Malcolm-Pirnie, Inc. of Jackson Heights, New York had rapidly developed plans to reconstruct nine well sites and treat the water with granular activated carbon to resume production of drinking water. The wells can produce between 500 and 3,000 gallons per minute of additional drinking water. Calgon Carbon was selected to provide modular adsorption systems containing a special grade of granular activated carbon to remove the contaminants so that the water will be in full compliance with drinking water standards. At select wells, Calgon Carbon will use Filtrasorb® 600, an activated carbon developed by the company’s researchers that has enhanced capability to remove MTBE. Calgon Carbon will also provide carbon replacement services.

Commenting on the contract, Jim Fishburne, Calgon Carbon’s senior vice president of sales, said, “We are pleased to be working closely with Moretrench and Malcolm-Pirnie to provide more safe drinking water to the citizens of New York.” Mark Stenzel, product manager – carbon systems at Calgon Carbon noted, “This is the type of project that really showcases Calgon Carbon’s unique strengths. We supply the complete treatment and service package with the greatest value for safe drinking water. Ourhigh-quality treatment systems can be mobilized and installed quickly and, if necessary, can be easily disassembled and moved to another site if requirements change.”

David K. Mueller, project manager for Moretrench, added, “This project is on an accelerated schedule, with plans for select well sites to begin producing drinking water in August. Meeting that schedule was an important consideration in choosing the carbon treatment supplier. Because of Calgon Carbon’s high-quality systems, specialized carbons, and extensive experience, we are confident that they will execute this project on time and on budget.”

Calgon Carbon Corporation, headquartered in Pittsburgh, Pennsylvania, is a global leader in service and solutions for purifying air and water. The company employs approximately 1,000 persons at 13 operating facilities and 11 sales and service centers worldwide.

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For more information, please contact Gail Gerono (412) 787-6795