Great Lakes Sediment Management and Reduction Act of 1993

Great Lakes Sediment Management and Reduction Act of 1993 - Amends the Federal Water Pollution Control Act to make it unlawful, after 1994, to dispose of dredge spoil in Great Lakes waters other than at a confined disposal facility unless the disposal is consistent with guidelines established under this Act.

Directs the Administrator of the Environmental Protection Agency to develop guidelines for the disposal of sediment material in the open waters of the Great Lakes. Prescribes civil penalties for violations concerning such disposal.

Prohibits the Secretary of the Army from establishing, expanding, or modifying any confined spoil disposal facility in Great Lakes waters unless the facility is consistent with such guidelines.

Directs the Administrator to implement management plans for such facilities.

Requires the Secretary to develop remediation plans for confined disposal facilities that are at risk of exceeding water or sediment quality standards or interfering with the protection and propagation of a balanced, indigenous population of fish and wildlife. Terminates the use of facilities for which plans are implemented by January 1, 1999.

Requires persons who dispose of dredge spoil at confined spoil disposal facilities to obtain permits.

Authorizes appropriations.

Directs the Secretary to: (1) develop tributary sediment transport models for each major river system that deposits sediment into a Great Lakes federally authorized commercial harbor, channel maintenance project site, or area of concern; (2) develop an analytical method to project the effectiveness of sediment source reduction approaches; and (3) use such method to conduct sediment load reduction analyses for the models.

Requires the Secretary to make grants to States for projects to reduce erosion that contributes to the sedimentation of such areas. Authorizes appropriations.