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fore acquired or wliicli may become available during the course of the 

 investig'ation, including information and data acquired by the Com- 

 mission in the course of its investigations and surveillance activities 

 conducted on the lower Great Lakes and in the connecting channels. 

 In conducting its investigation, the Commission should utilize the 

 services of the international board structure provided for in Article 

 VII of the Great Lakes Water Quality Agreement. 



Text op Referhnce to the International Joint Commission to 

 Study Pollution Problems of Lake Huron and Lake Superior 



I have the honour to inform you that the Governments of the United 

 States of America and Canada, pursuant to Article IX of the Bound- 

 ary Waters Treaty of 1909, have agreed to request the International 

 Joint Commission to conduct a study of water quality in Lake Huron 

 and Lake Superior, in the light of the provision of Article IV of the 

 Treaty which provides that the boundary waters and waters flowing 

 across the boundary shall not be polluted on either side to the injury 

 of health and property on the other side, and in the light also of the 

 Great Lakes Water Quality Agreement signed on this date. This ref- 

 erence represents the response of the two Governments to recommenda- 

 tion No. 20 of the Commission in its final report dated December 9, 

 1970, on pollution of Lake Erie, Lake Ontario, and the International 

 Section of the St. Lawrence River. 



The Commission is requested to enquire into and to report to the 

 two Governments upon the following questions : 



(1) Are the waters of Lake Superior and Lake Huron being 

 polluted on either side of the boundary to an extent (a) which is 

 causing or is likely to cause injury to health or property on the 

 other side of the boundary; or (b) which is causing, or likely to 

 cause, a degradation of existing levels of water quality in these 

 two lakes or in downstream 'portions of the Great Lakes System? 



(2) If the foregoing questions are answered in the affirmative, 

 to what extent, by what causes, and in what localities is such pollu- 

 tion taking place ? 



(3) If the Commission should find that pollution of the char- 

 acter just referred to is taking place, what remedial measures 

 v.'^ould, in its judgement, be most practicable to restore and pro- 

 tect the quality of the waters, and what would be the probable 

 cost? 



(4) In the event that the Commission should find that little or 

 no pollution of the character referred to is taking place at the 

 present time, what preventive measures would, in its judgement, 

 be most practicable to ensure that such pollution does not occur in 

 the future and what would be the probable cost ? 



The Governments would welcome the recommendations of the Com- 

 mission with respect to the general and specific water quality objec- 

 tives that should be established for these lakes, and the programs and 

 measures that are required in the two countries in order to achieve 

 and maintain these water quality objectives. 



^1,'^^^ Commission should submit its report and recommendations to 

 the two Governments as soon as possible and should submit reports 

 trom time to time on the progress of its investigation. 



