Great Lakes and Lake Champlain Act of 2002

Great Lakes Legacy Act of 2002 - Amends Great Lakes management provisions of the Federal Water Pollution Control Act to authorize the Administrator of the Environmental Protection Agency, acting through the Great Lakes National Program Office, to carry out projects in areas of concern that: (1) monitor or evaluate contaminated sediment; (2) implement a plan to remediate contaminated sediment; or (3) prevent further or renewed contamination of sediment. Prohibits the Administrator from carrying out a remediation project if an evaluation of remedial alternatives (including a review of health effects) has not been conducted or if the Administrator determines that the area is likely to suffer significant further or renewed contamination from existing sources following the project's completion. States that nothing in the Great Lakes management provisions shall be construed to affect any other Federal or State authority that is being used or may be used to facilitate Great Lakes cleanup and protection. Authorizes the Administrator to conduct research on innovative approaches, technologies, and techniques for the remediation of sediment contamination in areas of concern in the Great Lakes. Authorizes appropriations.