The 2003 recorded flow volume of the East Poplar River at International Boundary was 2,300 dam^ 

 (1,860 acre-feet). This volume is 77 percent of the median annual flow of 2,980 dam^ (2,420 acre-feet) 

 for 1975-2002 (since the completion of Morrison Dam). 



3.2.2 Apportionment 



In 1976 the International Souris-Red Rivers Engineering Board, through its Poplar River Task Force, 

 completed an investigation and made a recommendation to the Governments of Canada and the United 

 States regarding the apportionment of waters of the Poplar River basin. Although not officially adopted 

 by the two countries, the Poplar River Bilateral Monitoring Committee has adhered to the apportion- 

 ment recommendations in each of its annual reports. Armex 3 contains the apportionment 

 recommendation. 



3.2.3 Minimum Flows 



The recorded volume of the Poplar River at International Boundary from March 1 to May 3 1 , 2003 was 

 10,050 dam^ (8,150 acre-feet). Based on IJC recommendations and the assumption that the recorded 

 flow is the natural flow, the United States was entitled to a minimum discharge on the East Poplar River 

 of 0.085 cubic metres per second (mVs) (3.0 cubic feet per second (ftVs)) for the period June 1, 2003 to 

 August 31, 2003 and 0.057 m^/s (2.0 ftVs) for the period September 1, 2003 to May 31, 2004. The 

 minimum flow for the period January 1 to May 31, 2003 was 0.028 mVs (1.0 ftVs), determined on the 

 basis of the Poplar River flow volume for March 1 to May 31, 2002. A hydrograph for the East Poplar 

 River at International Boundary and the minimum flow as recommended by the IJC are shown in Figure 



3.2. ,.„.;■ , ., . 



Daily flows during 2003 met or exceeded the minimum flow recommended by the IJC throughout the 

 year except for June 7-11, June 13 to September 9, September 11 and December 28-31, when daily 

 flows fell below the recommended minimum. 



