HIGHLIGHTS FOR 2001 



The Poplar River Power Station completed its eighteenth full year of operation in 2001. The two 

 300-megawatt coal-fired units generated 4,354,900 gross megawatt hours (MW/h) of electricity. 

 The average capacity factors for Units No. 1 and 2 were 74.6 percent and 88.4 percent, 

 respectively. The capacity factors are based on the maximum generating rating of 305 MW/h for 

 both Unit No. 1 and Unit No. 2. 



Monitoring information collected in both Canada and the United States during 2001 was exchanged 

 in the spring of 2002. In general, the sampling locations, fi-equency of collection, and parameters 

 met the requirements identified in the 2001 Technical Monitoring Schedules set forth in the 2000 

 annual report. 



The recorded volume of the Poplar River at International Boundary fi-om March 1 to May 31, 2001 

 was 4,790 dam'' (3,880 acre-feet). Based on International Joint Commission (IJC) recom- 

 mendations and the assumption that the recorded flow is the natural flow, the United States was 

 entitled to a minimvim discharge on the East Poplar River of 0.057 cubic metres per second (m^/s) 

 (2.0 cubic feet per second (ftVs)) for the period June 1, 2001 to August 31, 2001 and 0.028 m^/s 

 (1.0 ft^/s) for the period September 1, 2001 to May 31, 2002. The minimum flow of 0.028 m^/s 

 (1.0 ft^/s) for the period January 1 to May 31, 2001 had previously been determined on the basis of 

 the Poplar River flow volume for March 1 to May 31, 2000. Except for August 7, 1 1, and 12, daily 

 flows in 2001 met or exceeded the minimum flow recommended by the IJC. 



In addition to the minimum flow, the IJC apportionment recommendation entitles the United States 

 to an on-demand release to be delivered on the East Poplar River during the twelve-month period 

 commencing June 1. Based on the runoff volume of 2,080 dam^ (1,690 acre-feet) recorded at the 

 Poplar River at International Boundary gauging station for March 1 through May 31, 2000, the 

 United States was entifled to an additional release of 370 dam'' (300 acre-feet) fi-om Cookson 

 Reservoir during the succeeding twelve-month period commencing June 1, 2000. Montana 

 requested this release to be made between May 1 and May 31, 2001. A volume of 385 dam^ (312 

 acre-feet), in addition to the minimum flow, was delivered during this period. 



The 2001 five-year total dissolved solids (TDS) flow- weighted concentrations were below the 

 long-term objective of 1,000 milligrams per litre (mg/L). The maximum monthly value calculated 

 in 2001 was 948 mg/L, which was less than in 2000. Boron concentrations for 2001 continued to 

 remain well below the long-term objective of 2.5 mg/L. 



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