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Description of Business	12 Months Ended
Description of Business	Sep. 27, 2015
Description of Business
Description of Business	1. Description of Business We are a leading provider of consulting and engineering services that focuses on addressing fundamental needs for water, environment, infrastructure, resource management and energy. We typically begin at the earliest stage of a project identifying technical solutions to problems and developing execution plans tailored to our clients' needs and resources. Our solutions may span the entire life cycle of consulting and engineering projects and include applied science, research and technology, engineering, design, construction management, operations and maintenance, and information technology.