The United States and Canadian governments are undertaking a periodic review of the operation and effectiveness of the 1978 Great Lakes Water Quality Agreement through extended public meetings and conference calls. The stated purpose of the Agreement is to restore and maintain the chemical, physical and biological integrity of the waters of the Great Lakes Basin Ecosystem. For a variety of motives, several interest groups have represented the water quality agreement as being instead about maintaining and restoring ecosystem integrity for the entire Great Lakes basin. Through analysis of social, economic, political and diplomatic discourses, we have discovered and described these motives. The scientific evidence of continuing injury to health and property from trans-boundary pollution convinces us that this reframing is an unwarranted diversion from the original intent.