The report reviews the water pollution problems in the St. Lawrence Region, which is defined to include all streams draining to the St. Lawrence River from the St. Regis River in New York on the west to Lake Memphremagog in Vermont on the east. The major drainage basin within the Region is that of Lake Champlain. The discharge of waste from municipalities, industries, and numerous other sources degrades water quality and prevents full utilization of the natural resources throughout the Region. The purpose of the report is to delineate those actions which should be undertaken immediately to prevent further degradation and to provide enhancement of these waters. These actions include not only construction of new or improved municipal and industrial waste treatment facilities, but also studies, surveys and research which are needed to develop sound water quality management programs for the future. (Author)