9,250 cubic decameters (7,500 acre-feet), then a continuous minimum flow 

 of 0.057 cubic metres per second (2.0 cubic feet per second) shall be 

 delivered to the United States on the East Poplar River at the International 

 Boundary during the succeeding period June 1st through August 31st. A 

 minimum delivery of 0.028 cubic metres per second (1.0 cubic feet per 

 second) shall then be maintained from September 1st through to May 31st 

 of the following year. In addition, a volume of 617 cubic decameters (500 

 acre-feet) shall be delivered to the United States upon demand at any time 

 during the 12-month period commencing June 1st. 



(iii) When the total natural flow of the Middle Fori< Poplar River, as determined 

 below the confluence of Goose Creek, during the immediately preceding 

 March 1 st to May 31 st period is greater than 9,250 cubic decameters (7,500 

 acre-feet), but does not exceed 14,800 cubic decameters (12,000 acre- 

 feet), then a continuous minimum flow of 0.085 cubic metres per second 

 (3.0 cubic feet per second) shall be delivered to the United States on the 

 East Poplar River at the International Boundary during the succeeding 

 period June 1st through August 31st. A minimum delivery of 0.057 cubic 

 metres per second (2.0 cubic feet per second) shall then be maintained 

 from September 1 st through to May 31 st of the following year. In addition, 

 a volume of 617 cubic decameters (500 acre-feet) shall be delivered to the 

 United States upon demand at any time during the 12 month period 

 commencing June 1st. 



(iv) When the total natural flow of the Middle Fork Poplar, as determined below 

 the confluence of Goose Creek, during the immediately preceding March 

 1st to May 31st period exceeds 14,800 cubic decameters (12,000 acres- 

 feet) then a continuous minimum flow of 0.085 cubic metres per second 

 (3.0 cubic feet per second) shall be delivered to the United States on the 

 East Poplar River at the International Boundary during the succeeding 

 period June 1st through August 31st. A minimum delivery of 0.057 cubic 

 metres per second (2.0 cubic feet per second) shall then be maintained 

 from September 1 st through to May 31 st of the following year. In addition, 

 a volume of 1 ,230 cubic decameters (1 ,000 acre-feet) shall be delivered to 

 the United States upon demand at any time during the 12-month period 

 commencing June 1st. 



(c) The natural flow at the International Boundary in each of the remaining 

 individual tributaries shall not be depleted by more than 60 percent of its 

 natural flow. 



The natural flow and division periods for apportionment purposes shall be 

 determined, unless othenwise specified, for periods of time commensurate with the 

 uses and requirements of both countries. 



A4- 3 



