ATLANTA - August 21, 2007 - ENSR is assisting Delta Air Lines with a new, comprehensive, on-board recycling program on its domestic flights to Delta's flagship hub in Atlanta. ENSR, part of AECOM, is a leading global environmental services provider.

Delta, America's fastest growing international carrier, worked extensively with ENSR to expand the airline's in-\-flight recycling program. ENSR helped Delta develop and conduct a recycling feasibility study, establish recycling metrics for Delta's corporate management, and implement recycling procedures for Delta's employees. The recycling program includes all aluminum, plastic and paper products on Delta's domestic flights into Atlanta.

"ENSR did an excellent job in assisting us with our recycling management program," remarked Michael Morgan, Delta's Environmental Services Department Manager. "They were a significant force in ensuring our program was successfully launched and built for sustainability."

Delta's recycling program is an important step in the airline's effort to become more environmentally-friendly. During the first month of the program, Delta recycled more than 18 tons of material. The proceeds of the program will benefit Habitat for Humanity and other charities.

"Delta's commitment to sustainability makes them a great client to work with" said Tracy Yount, ENSR Project Manager. "Our team effort has resulted in the long-term viability of the program."

As part of the program, ENSR worked with Delta to provide training and outreach programs to flight attendants, cabin services, and catering services staff at Delta's major hub locations. ENSR has been providing multi-media environmental compliance services to Delta since 2004.

The program also highlights ENSR's increasing focus on the transportation industry sector. As part of this enhanced focus, ENSR has recently named Ben Genes, former CEO of RETEC, to lead its efforts in the transportation market. RETEC merged with ENSR in February 2007.

About ENSR

ENSR is a leading worldwide environmental firm serving industrial clients and government agencies with 2,500 employees from 90 global offices. ENSR provides comprehensive consulting, engineering, remediation, and environmental health and safety (EHS) management solutions. ENSR is the recipient of numerous industry, client EHS, business achievement and organizational innovation awards. For more information, please visit: www.ensr.aecom.com

About AECOM

AECOM (NYSE: ACM) is a global provider of professional technical and management support services to a broad range of markets, including transportation, facilities, environmental and energy. With more than 31,000 employees around the world, AECOM is a leader in all of the key markets that it serves. AECOM provides a blend of global reach, local knowledge, innovation and technical excellence in delivering solutions that enhance and sustain the world's built, natural and social environments. AECOM serves clients in more than 60 countries and has achieved annual revenue of more than $4 billion for the past 12 months. More information on AECOM and its services can be found at www.aecom.com.

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