20 



SaskPower has an approval for the supplementary supply project to produce an annual volume of 5,500 

 damVyear. This approval was extended by Sask Water in 1996. Future revisions to the approval will 

 likely include conditions requiring termination of pumping (with the exception of wells supplying 

 domestic users) when the reservoir is above a specified level. Sask Water is currently undertaking a 

 hydrology study to determine the best reservoir level for a ground-water pumping cutoff. SaskPower's 

 supplementary supply well network currently consists of 21 wells with a total of 10 discharge points. 

 No wells were added to or deleted from the well field during the year. 



In addition to the supplementary supply, SaskPower also operates what is known as the Soil Salinity 

 Project, which is located south of Morrison Dam. The project was initiated in 1989 to alleviate soil 

 salinity which had developed below the dam. The salinity project consists of a network of production 

 wells which discharge into the cooling water canal, which in turn discharges to Cookson Reservoir. 

 Operation of the salinity project continued in 1999 with production of 881.1 dam^ of ground water. 

 This was above the 1998 production level of 767.2 dam\ and slightly below the project's average 

 annual production of 910 damVyear from inception of the project in 1990 to 1998. 



Approximately 7 1 % of the total volume pumped came from wells P W87 1 03 and P W87 1 04 which are 

 located on the east side of the river and most of the remainder (29%) was produced from PW90109 on 

 the west side of the river. Figure 3.13 shows the pumpage volume from the Salinity Control Project. 



Poplar River Power Station 



Salinity Project 



1^ 19B7 1^ 



Figure 3.13 Pumpage from Salinity Control Project 



