The report concerns pollution abatement in the Great Lakes Basin, specifically influenced by agricultural and related sources, including runoff and release of nutrients, pesticides, herbicides, and degradation by-products as affected by agricultural chemicals, runoff from animal and poultry production, and sedimentation. Current planning, advisory and regulatory functions of the two Governments is discussed. Some basic research of the joint study-group is summarized. Improper manure spreading or storing, and runoff from livestock feeding areas have the greatest potential impact on water quality. Pesticide contribution to environmental contamination is receiving closer scrutiny. The erosion problem is measured in sediment load in streams and deposition rate in reservoirs. High chloride levels, measured in tributary waters, seem related to road salt application. The adequacy of current legislation is discussed.