CH2M Hill and PWD Consultants Awarded $123.9 Million Contract for Portion of One of the World's Largest Wastewater Projects.

Business Editors/Environmental Writers

DENVER--(BUSINESS WIRE)--Feb. 21, 2000

CH2M Hill Singapore Pte. Ltd. and PWD Consultants Pte. Ltd. have been contracted to design and manage construction of the Changi Wastewater Treatment Plant (WTP) in the Republic of Singapore.

The plant is part of the Ministry of the Environment's (ENV) Deep Tunnel Sewerage System (DTSS) project, recognized as one of the world's largest wastewater projects.

"This project represents a vital part of Singapore's twenty-first century infrastructure goals. It supports continued economic development and high quality-of-life standards for the decades ahead. We are honored to be selected for this important, landmark project," said Don Evans, president of CH2M Hill's Water Business Group.

Mr. Khor Poh Hwa, president & chief executive officer of PWD Consultants, added, "With PWD Consultants' established track record in Singapore infrastructure development, and CH2M Hill's leading expertise in wastewater treatment technology, the alliance is no doubt the best possible combination to meet ENV's needs."

When complete, the DTSS will provide sufficient capacity to convey, treat and dispose of wastewater for the next 100 years. The project's major elements are two deep tunnel systems and two wastewater treatment plants that will eventually replace six existing sewage treatment works.

The Changi WTP is part of the first phase of the DTSS, which also comprises construction of a sea outfall, North and Spur Tunnels with link sewers. When this initial phase is completed by Dec 31, 2007, capacity will reach 800,000 cubic meters per day (CMD).

Services for the S$123.9 million contract include:

- Detailed design and tendering for the complete Changi WTP with

capacity of 800,000 CMD, including ancillary services

- Design support during construction

- Services during construction, including contract

administration, engineering, quality assurance/quality control

inspection, and finalization of contracts

- Services during commissioning, including coordination of plant

equipment check-out and start-up, and process optimization

- Services during defects liability period, including provision

of technical assistance, coordination with contractors and

equipment manufacturers on services and repair

Company profiles:

CH2M Hill Singapore Pte. Ltd.

CH2M Hill, an employee-owned environmental consulting, construction and operations management firm, has built its 50-year reputation as a water industry leader on meeting the demands of public- and private-sector professionals responsible for water treatment and supply, wastewater and water resources by working through increasingly complex issues and exceeding the expectations of its clients. Through our global network of offices and more than 7,000 professional staff worldwide, CH2M Hill provides local staff and global resources to clients wherever they may operate.

CH2M Hill helps clients apply technology and safeguard the environment. Our ability to integrate and creatively package services and contractual arrangements to meet specific project needs are of strategic benefit to our clients. Our highly skilled employees, each dedicated to ensuring project success, work with clients on conceptualization, design, construction and operational management -- and do so with an emphasis on cost-savings for the client. CH2M Hill has saved clients billions of dollars through innovative and creative engineering solutions.

PWD Consultants Pte. Ltd.

PWD Consultants Pte. Ltd. is a subsidiary of PWD Corporation Pte. Ltd. (PWDCorp). Home-grown PWDCorp is one of Asia's leading development professionals. It was formed in April 1999 with the corporatization of the former Singapore Public Works Department, one of the major organizations responsible for the physical development of modern Singapore since 1833. PWDCorp provides the full spectrum of development services through its subsidiaries -- PWD Consultants, PWD EMS and PWD Investments. These include architectural services, civil & structural engineering, mechanical & electrical engineering, quantity surveying, project management, and facilities and estate management.