31 

 3.6 Quality Control 



3.6.1 Streamflow 



To test the comparability of streamflow measurements made by the U.S. Geological Survey 

 (USGS) and Environment Canada (EC), similar measurements were made on the East Poplar River 

 at the International Boundary on July 2, 1996 by personnel from both agencies. The discharge data 

 shown in Table 3.5 are similar although not identical indicating the difficulty of obtaining the same 

 measurements of small discharge using conventional current-metre methods. The computations 

 were made using the theoretical discharge of the 9CP V-notch weir of 0.070 m'/s. 



Table 3.5 Streamflow Measurement Results for July 2, 1996 



3.6.2 Water-Quality 



Quality control sampling was carried out at the East Poplar River at the International Boundary on 

 July 15, 1996. Participating agencies included the United States Geological Survey (USGS), 

 Envirorunent Canada, and SaskPower Corp. 



Sets of triplicate samples were split from USGS sampling chums and submitted to the respective 

 laboratories for analyses. Field procedures were identical to those used since 1 986. 



