US Environmental Protection Agency
Epa: What Is the Great Lakes Water Quality Agreement?
This site details the signing and revision of the Great Lakes Water Quality Agreement by the United States and Canada. Includes a copy of the revised agreement of 1978.
Other
National Agricultural Law Center: Clean Water Act: A Summary of the Law [Pdf]
This resource provides a summary of the Clean Water Act and sections such as background, federal and state responsibilities, regulations, enforcement, and major amendments are provided.
US Environmental Protection Agency
Epa: Summary of the Clean Water Act
Provides a brief overview of the Clean Water Act. Includes links to its history and to information about compliance and enforcement.