2.4 Data Exchange 



The Committee is responsible for assuring exchange of data between governments. The exchange of 

 monitoring information was initiated in the first quarter of 1981 and was an expansion of the informal 

 quarterly exchange program initiated between the United States and Canada in 1976. Until 1991, data 

 were exchanged on a quarterly basis. At the request of the Committee, the United States and Canada 

 agreed to replace the quarterly exchange of data with an annual exchange effective at the beginning of 

 the 1992 calendar year. Henceforth, data will be exchanged once each year as soon after the end of the 

 calendar year as possible. However, unusual conditions or anomalous data will be reported and 

 exchanged whenever warranted. No unusual conditions occurred during 2005 which warranted special 

 reporting. 



2.5 Water-Quality Monitoring Responsibilities 



Environment Canada has agreed to take responsibility of maintaining the continuous water-quality 

 monitor installed at the East Poplar station at the International Boundary. The continuous water-quality 

 monitor records daily conductance values which are used in the computation of TDS and boron values 

 to monitor water quality in the East Poplar River. In the absence of water-quality samples, the 

 Committee has agreed to utilize the data collected by the continuous water-quality monitor for its 

 surface-water-quality monitoring program. 



The USGS collects water-quality samples on a quarterly basis to supplement the daily conductance data 

 collected by the continuous water-quality monitor. 



