16 



3.3 Groundwater 



3.3.1 Operations 



In 1 994, SaskPower Corporation continued to operate their Supplementary Water Supply Project to 

 augment supplies in Cookson Reservoir. The 1 994 total of 5 485 dam'' of water produced from the 

 Supplementary Water Supply Project was slightly less than the 1993 production of 5 582 dam^. 

 SaskPower Corporation has an approval to produce an annual volume of 5 500 dam^. 



SaskPower Corporation's Supplementary Water Supply Project well network currently consists of 21 

 wells with a total of 10 discharge points. No wells were added or deleted from the well field during 

 the year. Production was reasonably consistent throughout most of the year with the exception of 

 the July to September period when there was a reduction in pumping. In summer, wells which do 

 not supply water to domestic users are turned off. Consequently, in July and August, only 5 wells 

 were pumped as opposed to the remainder of the year when 17 to 18 wells were pumped. Reduced 

 summer pumping assists in achieving maximum flows into Cookson Reservoir by minimizing 

 evaporative losses in Girard Creek. 



Operation of SaskPower Corporation's Salinity Control Project continued in 1994 with production 

 from 7 wells with a total volume of 1 095 dam^ pumped during the year. (An eighth well is located 

 along the International Boundary, but has never been operated.) This represents a slight increase 

 over the 1993 pumped volume of 1 036 dam*'. As in previous years, the majority of the water was 

 pumped from wells PW87103 and PW87104 on the east side of the river and PW90108 on the west 

 side of the river. 



