ATG Announces Award of Rocky Flats Five-Year Waste Processing Contract.

Business Editors & Environmental Writers

HAYWARD, Calif.--(BUSINESS WIRE)--May 31, 2001

ATG Inc. (Nasdaq: ATGC), a leading provider of low-level radioactive and low-level mixed waste treatment services with processing facilities located in Richland, Washington and Oak Ridge, Tennessee, announced today the award of a major waste processing contract by Kaiser-Hill, the Managing contractor of the DOE's retired Weapons Manufacturing site at Rocky Flats, Golden, Colorado. ATG is a member of the management team represented by Clean Horizons LLC, which was awarded this prestigious contract. Other members of the LLC are IT Corporation and URS Corporation. The LLC team consists of the country's leading engineering-construction, remediation and waste management contractors. IT Corporation is the lead partner in the LLC.

The Rocky Flats site is one of the most important clean-up sites for the Department of Energy. There are thousands of cubic meters of legacy, operations and demolition waste, in the low-level radioactive waste and low-level mixed waste ("LLMW") categories that require treatment, packaging, shipment and disposal to support the timely closure of Rocky Flats. More than 30% of the estimated $4.0 billion closure cost of the Rocky Flats site is expected to cover waste management, waste processing and waste disposal activities.

"The five-year contract award represents an important and strategic win for ATG, it also presents a significant potential for increase in business and shareholder value for the company. Nearly 150 buildings located on the 6000-acre site, many containing significant quantities of radioactive waste need to be demolished and disposed off. That represents a huge challenge for the site and represents a great opportunity for us," said Vik Mani, the Company's Chief Operations Manager. "The Company is uniquely positioned to support Kaiser-Hill in meeting this challenge." ATG is the only waste processing company in the country that is licensed and permitted to thermally treat several categories of LLMW at Rocky Flats and at other DOE sites. ATG's non-thermal LLMW treatment capabilities are the most comprehensive in the industry.

About ATG Inc.

ATG Inc. is a radioactive and hazardous waste management company that offers comprehensive thermal and non-thermal treatment solutions for low-level radioactive and low-level mixed waste generated by commercial, institutional and government clients such as nuclear power plants, medical facilities, research institutions and the U.S. Departments of Defense and Energy.

This news release may contain forward-looking statements pursuant to the "safe harbor" provisions of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. Such forward-looking statements involve risks and uncertainties, including, without limitation, the Company's new products and services, contract awards, competition and various factors set forth under "Factors Affecting Future Operating Results" in the Company's annual report on Form 10-K and such other risks detailed from time to time in the Company's other reports filed with the Securities and Exchange Commission. The Company undertakes no obligation to publicly release the result of any revisions to these forward-looking statements, which may be made to reflect events or circumstances after the date hereof or to reflect the occurrence of unanticipated events.