Downstream from Cookson Reservoir and contiguous to the East Poplar 

 River, the hydraulic head in a near-surface, semi-confined aquifer has 

 increased over pre-reservoir times. During 1989-90, Sask Power installed 

 a series of wells and initiated pumpage to lower the water table and 

 reduce soil salinity. Pumped water is piped back to the reservoir. 

 Monitoring wells were installed during 1990 in Montana near the Inter- 

 national Boundary on both sides of the East Poplar River to measure 

 potential trans-boundary affects of salinity and increased water levels. 



Monitoring of air quality at designated sites in Saskatchewan began with 

 startup of the first generating unit and has continued through 1990. 

 Monitoring results in 1990 did not show any ambient sulphur dioxide 

 excursions above Saskatchewan standards. There were no excursions from 

 the suspended particulate monitor that could be attributed to power 

 station activity. Air quality monitoring at three primary sites in 

 Montana continued through 1986. After 1986, monitoring gradually was 

 decreased and in 1990 Montana air-quality monitoring was discontinued. 

 Monitoring results in Montana indicated that total suspended particulate 

 standards for Montana and the United States were not exceeded at any of 

 the three monitoring sites and that levels generally observed were low 

 and representative of rural Montana. 



