The 2005 recorded flow volume of the East Poplar River at International Boundary was 2,680 dam'' 

 (2,180 acre-feet). This volume is 90 percent of the median annual flow of 2,980 dam'' (2,420 acre-feet) 

 for 1976-2004 (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 the recommendation 

 has not been officially adopted, the Province of Saskatchewan has adhered to the apportion- 

 ment recommendation. Annex 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 31, 2005 was 

 3,010 dam^ (2,440 acre-feet). Based on UC 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 

 0.028 cubic metres per second (mVs) (1.0 cubic feet per second (ft^/s)) for the period June 1, 2005 to 

 May 31, 2006. The minimum flow for the period January 1 to May 31, 2005 was 0.028 mVs (1.0 ftVs), 

 determined on the basis of the Poplar River flow volume for March 1 to May 31, 2004. A hydrograph 

 for the East Poplar River at International Boundary and the minimum flow as recommended by the UC 

 are shown in Figure 3.2. 



Daily flows during 2005 met or exceeded the minimum flow recommended by the UC throughout the 

 year except for several days (July 29; August 10, 23, 30, 31; September 4, 8, 13, 14) when daily flows 

 were below the recommended minimum due to temporary damming of the stream by upstream beaver 

 activity. 



